JP2010109487A - Digital broadcast receiving device and digital broadcast receiving method - Google Patents

Abstract

By notifying a user of a difference between a preceding delivery program and a main broadcast program, the user can determine in which order the program should be viewed.
First acquisition means for acquiring program information of a preceding distribution program that is distributed via an Internet line in advance of a main broadcast program transmitted via a broadcast signal and associated with the main broadcast program. And a second delivery means for obtaining the program information of the main broadcast program, the program information obtained by the first acquisition means and the program information obtained by the second acquisition means, If there is a difference between the preceding distribution program and the main broadcast program based on the result of determination by the determination means and the determination by the determination means, the difference indicating the difference between the previous distribution program and the main broadcast program Notification means for notifying the user of information.
[Selection] Figure 2

Description

  The present invention relates to a digital broadcast receiving apparatus and a digital broadcast receiving method.

  With the start of digital broadcasting, digital television capable of receiving digital broadcasting has become widespread. Some types of digital televisions have a network terminal and are equipped with a function that allows various video contents distributed over the Internet to be viewed by connecting the network terminal to the Internet. Such a function is called VOD (Video On Demand). In addition, in digital broadcasting, information on an electronic program guide or electronic program guide (EPG) is included in the broadcast radio wave, and a digital television equipped with an EPG function that acquires this information and displays it on the screen is also known. It has been. Furthermore, in recent years, a service for distributing these data to a personal computer or a mobile device connected to the Internet prior to the release of a CD or game software has been attempted.

Here, an apparatus (Patent Document 1) is known that provides content data such as a television program whose provision date and time is determined to a user before and after the provision date and time. In addition, as a prior art related to prior delivery, a method for displaying that there is a plan to provide a prior delivery program in an electronic program guide before broadcasting a normal broadcast program (main broadcast program) linked to the prior delivery program (Patent Document 2).
JP 2002-056203 A JP 2003-087751 A

By the way, the following pre-delivery service is assumed in digital broadcasting. For example, it is a service that distributes a pre-distributed program introducing a main broadcast program from a streaming site on the Internet before the main broadcast program is broadcast.
When the preceding delivery program is a program for introducing the main broadcast program to the user, the image quality is not necessarily equal to that of the broadcast program, and unnecessary service need not be added. It is necessary to provide a high value-added service to users who watch TV.

  For example, when the image quality of the preceding distribution program is set to the standard image quality (SD: Standard Definition), it is assumed that the image quality of the main broadcast program is set to high definition (HD: High Definition) to be differentiated from the preceding distribution program. Also, it is assumed that content that can be viewed simultaneously with the subtitle service, the linked data broadcast service, and the main broadcast program is distributed so that it can be enjoyed in real time, so that it can be differentiated from the preceding distribution program.

  However, there is no technique for clearly notifying the difference between the pre-distributed program and the main broadcast program in the digital broadcast and the digital receiver that receives the digital broadcast. For this reason, the user determines whether to view the preceding broadcast program, whether to view the main broadcast program without viewing the previous distribution program, or whether to view the main broadcast program after viewing the previous distribution program. There is a problem that is difficult.

  An object of this invention is to enable a user to recognize the difference between a preceding delivery program and this broadcast program.

  In order to achieve the above object, the digital broadcast receiving apparatus according to the present invention provides a predecessor associated with a main broadcast program that is distributed via an Internet line prior to the main broadcast program transmitted via a broadcast signal. Acquired by first acquisition means for acquiring program information of a distribution program, second acquisition means for acquiring program information of a main broadcast program, program information acquired by the first acquisition means, and second acquisition means If there is a difference between the preceding delivery program and the main broadcast program based on the determination result by the determination means that determines the difference between the preceding distribution program and the main broadcast program based on the determined program information, And notification means for notifying a user of difference information indicating a difference between the preceding delivery program and the main broadcast program.

  The digital broadcast receiving method of the present invention obtains program information of a preceding distribution program associated with the main broadcast program that is distributed via the Internet line in advance of the main broadcast program transmitted via a broadcast signal. Based on the first acquisition step, the second acquisition step of acquiring program information of the main broadcast program, the program information acquired by the first acquisition step, and the program information acquired by the second acquisition step. In addition, if there is a difference between the preceding distribution program and the main broadcast program based on the determination step for determining the difference between the preceding distribution program and the main broadcast program and the result of determination by the determination step, the previous distribution program and the main broadcast program A notification step of notifying a user of difference information indicating a difference between the first and second information.

  According to the present invention, the user convenience is improved by notifying the user of the difference between the preceding distribution program and the main broadcast program based on the program information of the previous distribution program and the program information of the main broadcast program. Can do.

The best mode for carrying out the present invention will be described below with reference to the drawings.
(First embodiment)
FIG. 1 shows a connection form of the digital broadcast receiving apparatus according to the first embodiment. As shown in FIG. 1, the digital broadcast receiving apparatus 100 is connected to each device 102 such as a computer and a printer via an Ethernet (registered trademark) 101 and can communicate with each other. The digital broadcast receiving apparatus 100 can be connected to the Internet 104 via the Ethernet (registered trademark) 101 and the router 103.

  FIG. 2 shows a functional configuration of the digital broadcast receiving apparatus according to the first embodiment. The digital broadcast receiving apparatus 100 has a TV basic function and a VOD playback function as a TV extension function. In other words, the digital broadcast receiving apparatus 100 can receive a pre-distributed program by VOD and receive a main broadcast program that is multiplexed with a broadcast signal and transmitted.

The digital broadcast receiving apparatus 100 includes a television basic function unit, a VOD playback function unit, and a program information processing unit.
The TV basic function unit has a TV basic function, and includes an antenna 200, a tuner unit 201, a descrambler 202, a data separation unit 203, an audio decoding unit 204, a video decoding unit 205, and a program information decoding unit 206. . The TV basic function unit also includes a video processing unit 207, an audio control unit 208, a UI screen configuration unit 209, a display control unit 210, an audio output unit 211, a video output unit 212, a system control unit 223, and a light receiving unit 227. . The TV basic function unit further includes a channel selection control unit 220, a time management unit 221, a memory management unit 224, and a data broadcast control unit 225.

  The antenna 200 receives broadcast radio waves (digital broadcast signals) by digital broadcasting. A signal (digital broadcast signal) received by the antenna 200 is input to the tuner unit 201. The digital broadcast signal is scrambled (encrypted) to maintain confidentiality.

The tuner unit 201 performs processing such as demodulation and error correction on the input signal, generates transport stream data (hereinafter referred to as “TS”), and outputs the generated TS to the descrambler 202. .
The descrambler 202 performs descrambling on the TS from the tuner unit 201 (invalidation, that is, restores encryption), and outputs the result (multiplexed TS) to the data separation unit 203. .

  The data separation unit 203 acquires information about a program selected by the user operating the remote controller 226 via the light receiving unit 227 and the system control unit 223. In addition, audio data, video data, and program information of a selected program from a TS in which video, audio data, and program information data for a plurality of channels input from the descrambler 202 are time-division multiplexed. Retrieve the data. Then, they are output to the audio decoding unit 204, the video decoding unit 205, and the program information decoding unit 206, respectively.

The audio decoding unit 204 performs a decoding process on the audio data input from the data separation unit 203 and outputs the decoded audio data to the audio control unit 208.
The video decoding unit 205 performs a decoding process such as MPEG (Moving Picture Experts Group) on the video data input from the data separation unit 203, and the decoded video data is processed by the video processing unit 207. Output to.

The program information decoding unit 206 acquires desired information from the program information data input from the data separation unit 203, and outputs the desired information to the video processing unit 207, UI (User Interface) screen configuration unit 209, and display control unit 210.
The program information data mainly includes data such as a service description table (SDT), an event information table (EIT), and a time offset table (TOT).

The SDT includes information such as a service name corresponding to a broadcast channel and a service provider. The EIT includes information on an event name corresponding to the program, an event start time, a duration, and the like. The TOT includes information regarding the current date and time.
The video processing unit 207 performs video adjustment processing based on the video data input from the video decoding unit 205 and the program information input from the program information decoding unit 206, and outputs the adjusted video data to the display control unit 210. To do.

The audio control unit 208 performs D / A (Digital / Analog) conversion processing or the like on the audio data, and outputs analog audio data as a result of the D / A conversion processing to the audio output unit 211.
The UI screen configuration unit 209 configures an EPG (Electronic Program Guide) or the like based on the program information data input from the program information decoding unit 206, and outputs these to the display control unit 210. To do.

The display control unit 210 displays video data input from the video processing unit 207 and screen data input from the UI screen configuration unit 209 according to operation information from the remote control 226, processing for combining, and the like. Predetermined processing related to is performed. In addition, data resulting from these processes is output to the video output unit 212.
The audio output unit 211 outputs the audio data from the audio control unit 208.
The video output unit 212 converts the data from the display control unit 210 into display data and timing suitable for the display resolution, the number of display colors, and the refresh rate, and outputs and displays the data.

The system control unit 223 comprehensively controls each component.
The light receiving unit 227 receives operation information (program) and control information output from the remote controller 226 according to the operation of the remote controller 226 by the user, and provides the received information to the system control unit 223.
The channel selection control unit 220 performs control related to channel selection. The time management unit 221 manages information relating to various times such as current time information and broadcast time information of programs. The memory management unit 224 manages a buffer memory that temporarily stores VOD content data. The data broadcast control unit 225 performs control related to reception of the data broadcast. The VOD playback function unit 20 has a VOD playback function as a television extension function, and includes a communication control unit 230 and a VOD playback control unit 232.

The communication control unit 230 controls communication via the Internet line. The digital broadcast receiving apparatus 100 is connected to the Internet via the communication control unit 230.
The VOD playback control unit 232 acquires desired VOD content data from a VOD server on the Internet via the communication control unit 230. In addition, the VOD playback control unit 232 receives VOD content data distributed over the Internet via the communication control unit 230. Then, while storing in a buffer memory (not shown) provided in the digital broadcast receiving apparatus 100, streaming control to be output to the decoding unit (video decoding unit 205 and audio decoding unit 204) is performed.

  The VOD content data output to the decoding unit is output to the video output unit 212 and the audio output unit 211 via the display control unit 210 and the audio control unit 208, respectively. As a result, the user can view the VOD content output contents output from the video output unit 212 and the audio output unit 211 of the digital broadcast receiving apparatus 100.

  The program information processing unit acquires program information of the main broadcast program. Subsequently, the program information of the preceding distribution program distributed prior to the main broadcasting program is acquired, and it is determined whether there is a difference between the main broadcasting program and the preceding distribution program. And the process which notifies difference information with respect to a user based on the determination result is controlled. The preceding delivery program is a program associated with the broadcast program by linking (linking), and is a program for introducing the broadcast program.

  FIG. 3 shows the temporal relationship between the preceding delivery program and the main broadcast program in the first embodiment. As shown in the figure, the preceding delivery program linked to the main broadcast program (program A) is distributed before the main broadcast program (program A).

In the present embodiment, the following (1) to (6) are listed as the contents of the difference between the preceding distribution program and the main broadcast program.
(1) Different subtitle services that can be switched.
(2) Video ES (Elementary Stream), audio ES (elementary stream), audio multiplexing, and the like that can be switched are different.
(3) Image quality and sound quality are different.
(4) Services associated with programs by two-way communication are different.
(5) Linked data broadcast contents (services) are different.
(6) The service by billing is different.

  Here, the difference (different part) in the program contents between the preceding distribution program and the main broadcast program is a matter that differentiates the main broadcast program from the previous distribution program. Therefore, other setting items may be added as needed for differentiation.

  As shown in FIG. 2, the program information processing unit includes a program information providing unit 231, a preceding delivery program control unit 233, a program difference information determination unit 234, a broadcast program information acquisition unit 235, and a difference information notification control unit 236.

As shown in FIG. 4, the broadcast program information acquisition unit 235 includes a broadcast program information acquisition unit 401 and a broadcast program information storage unit 402.
The broadcast program information acquisition unit 401 acquires the program information of the broadcast program by controlling the program information acquisition process of the broadcast program, and stores the acquired program information of the broadcast program in the broadcast program information storage unit 402. The program information stored in the broadcast program information storage unit 402 is also used for displaying an EPG (electronic program guide or electronic program guide).

  As shown in FIG. 5, the preceding delivery program control unit 233 includes a preceding delivery program detection unit 501, a preceding delivery program information acquisition unit 502, a preceding delivery program information storage unit 503, and a preceding delivery program viewing history control unit 504. have.

The preceding delivery program detecting unit 501 detects the preceding delivery program based on the content of the program information of the preceding delivery program linked to the broadcast program described in the program information of the acquired broadcast program. Do.
When there is a preceding delivery program linked to the broadcast program by the detection of the preceding delivery program detection unit 501, the preceding delivery program information acquisition unit 502, based on the description content about the program of the preceding delivery program, Get program information for.

The preceding delivery program information acquisition unit 502 adds the program identification information of the main broadcast program to be linked to the acquired program information of the preceding delivery program. Then, the program information of the preceding delivery program to which this program identification information (linking source broadcast program identification information) is added is stored in the preceding delivery program information storage unit 503.
The preceding delivery program information acquisition unit 502 updates the description content by adding information to the description content of the program information of the preceding delivery program stored in the broadcast program information storage unit 402 and associated with the broadcast program. In this case, information that the program information of the preceding delivery program is already stored in the preceding delivery program information storage unit 503 is added.

The preceding delivery program information storage unit 503 stores the program information of the preceding delivery program associated with the broadcast program, to which the program identification information of the main broadcast program as the association source is added.
When the preceding delivery program is played back, the preceding delivery program viewing history control unit 504 acquires the reproduced program information of the preceding delivery program in the preceding delivery program information storage unit 503.

As shown in FIG. 8, the program information providing unit 231 includes a main broadcast program information providing unit 801 and a preceding delivery program information providing unit 802.
The main broadcast program information providing unit 801 reads program information of a desired broadcast program from the broadcast program information storage unit 402 of the broadcast program information acquisition unit 235, and program information of the read desired broadcast program is a program difference information determination unit. 234. The program information of the broadcast program includes a description of the preceding delivery program associated with the broadcast program by linking (linking).

  The preceding delivery program information providing unit 802 reads program information of a desired preceding delivery program from the preceding delivery program information storage unit 503 of the preceding delivery program control unit 233. Then, the read program information of the desired preceding delivery program is provided to the program difference information determination unit 234. In this case, the preceding distribution program information providing unit 802, based on the association source broadcast program identification information stored in the preceding distribution program information storage unit 503, the program of the main broadcast program associated with the preceding distribution program. Information can also be provided to the program difference information determination unit 234.

  The program difference information determination unit 234 will be described again with reference to FIG. The program difference information determination unit 234 acquires the program information of the main broadcast program linked to the preceding delivery program provided from the program information providing unit 231 and the program information of the preceding delivery program. Thereafter, the program difference information determination unit 234 compares the program information of the preceding distribution program with the program information of the main broadcast program, and based on the comparison result, the program information of the previous distribution program and the program information of the main broadcast program The difference result and the content of the difference are output as difference information.

As illustrated in FIG. 23, the difference information notification control unit 236 includes a difference information notification setting unit 1801, a notification timing determination unit 1802, a difference information notification determination unit 1803, and a difference information notification unit 1804. .
The difference information notification setting unit 1801 sets whether or not to notify the difference, or whether or not to notify the presence / absence of the difference and the difference content. The difference information notification setting unit 1801 outputs the set contents to the notification timing determination unit 1802 as difference information notification setting information.

  The notification timing determination unit 1802 acquires the difference information notification setting information from the difference information notification setting unit 1801, and then, based on the acquired difference information notification setting information, the program information of the preceding delivery program and the program information of the main broadcast program The timing for notifying the difference information indicating the difference is determined. The notification timing determination unit 1802 outputs the determined timing to the difference information notification determination unit 1803 as timing information. In this case, it is preferable that the notification timing determination unit 1802 determines the timing at the time of viewing the main broadcast program, at the time of viewing the preceding distribution program, at the time of displaying the program information of the main broadcast program or the preceding distribution program, or at the time of displaying the EPG.

  The difference information notification determination unit 1803 acquires the program information of the preceding distribution program from the preceding distribution program information provision unit 802, acquires the program information of the main broadcast program from the main broadcast program information provision unit 801, and the program difference information determination unit 234. Get the difference information from each. The difference information notification determination unit 1803 outputs the acquired difference information to the difference information notification unit 1804. The difference information notification unit 1804 performs display notification processing of the difference information output from the difference information notification determination unit 1803.

  As described above, the preceding delivery program information acquisition unit 502 of the preceding delivery program control unit 233 has a function as the first acquisition unit, and the broadcast program information acquisition unit 401 of the broadcast program information acquisition unit 235 performs the second acquisition. It has the function of means. Further, the program difference information determination unit 234 has a function of a determination unit, and the difference information notification unit 1804 of the difference information notification control unit 236 has a function of a notification unit.

  For example, when viewing of the main broadcast program is scheduled, the difference information notification unit 1804 determines the difference between the preceding distribution program and the main broadcast program based on the determination result by the determination unit (program difference information determination unit 234). The difference information shown is notified to the user. Further, the difference information notification unit 1804 notifies the user of the difference information based on the determination result of the determination unit (program difference information determination unit 234) when the reproduction (viewing) of the preceding delivery program is scheduled. Furthermore, when at least one piece of information is displayed among the program information of the main broadcast program, the program information of the preceding delivery program, and the electronic program guide information, the difference information notification unit 1804 determines the determination means (program difference information determination unit 234. ) To notify the user of the difference information.

  On the other hand, the digital broadcast receiving apparatus 100 has the following functions (1) to (6) in addition to the above-described TV basic function and VOD playback function (viewing function) as a TV expansion function.

(1) Program Information Acquisition Function for Broadcast Program The “broadcast program information acquisition function” of the digital broadcast receiving apparatus 100 will be described with reference to FIGS.

  In FIG. 2, when a signal received by the antenna 200 is input to the tuner unit 201, the tuner unit 201 performs processing such as demodulation and error correction on the acquired signal to generate TS (transport stream data). And output to the descrambler 202. The descrambler 202 performs descrambling processing on the TS, and outputs the multiplexed TS to the data separation unit 203. The data separation unit 203 extracts program information from the multiplexed TS and outputs it to the program information decoding unit 206. The program information decoding unit 206 decodes the acquired program information.

The program information data (PSI (Program Specific Information) / SI (Service Information: program arrangement information)) output from the program information decoding unit 206 includes EIT. The EIT includes an event name (program title) corresponding to a program, an event start time, an event duration, information on the image quality and sound quality of the program, and the like. In addition, PMT (Program Map Table) included in TS includes information on subtitles, information on ES (elementary stream), information on data broadcasting linked to a program, and the like. In this way, the program information acquisition process for the broadcast program is performed.
And in the broadcast program information acquisition part 235 shown in FIG. 4, while the broadcast program information acquisition part (storage means) 401 controls the acquisition process of the program information of the broadcast program mentioned above, and acquires the program information of a broadcast program, The acquired broadcast program information is stored in the broadcast program information storage unit 402. The program information stored in the broadcast program information storage unit 402 is also used for EPG display and the like.

(2) Acquisition Function and Storage Function of Advance Delivery Program Linked to Broadcast Program Regarding “Previous Delivery Program Acquisition Function and Storage Function Linked to Broadcast Program” of digital broadcast receiving apparatus 100, FIG. This will be described with reference to FIG.
In the digital broadcast receiving apparatus 100, in the broadcast program information acquisition unit 235 shown in FIG. 4, the broadcast program information acquisition unit 401 uses the above-mentioned “program information acquisition function of broadcast program” as shown in FIG. The program information of the program is acquired (step S601). The broadcast program information acquisition unit 401 stores the acquired program information of the broadcast program in the broadcast program information storage unit 402 and also stores the program information of the latest broadcast program in the broadcast program information storage unit 402. Update the contents.

  For each broadcast program stored in the broadcast program information storage unit 402, whether or not there is a preceding delivery program is determined by whether or not the preceding delivery associated with the broadcast program is included in the program information of the acquired broadcast program. It is determined depending on whether or not information related to the program is described. When the information regarding the preceding delivery program is described in the program information of the acquired broadcast program, the preceding delivery program exists.

  For example, a link descriptor is inserted into the program information of the broadcast program as reference information about the acquired broadcast program. In this link descriptor, information related to the preceding delivery program with respect to the program information of the preceding delivery program linked to the broadcast program, for example, the URL (Uniform Resource Locator) of the delivery source server, the delivery start time, the delivery duration time, etc. Is described.

  In the preceding delivery program control unit 233 shown in FIG. 5, the preceding delivery program detection unit 501 is a program of the preceding delivery program linked to the broadcast program stored in the broadcast program information storage unit 402 as shown in FIG. A link descriptor for information is referred to (step S602). Thereafter, the preceding delivery program detecting unit 501 detects the preceding delivery program based on the referred result, and determines whether or not there is a description about the program information of the preceding delivery program (step S603).

  If the preceding delivery program detection unit 501 determines in step S603 that there is no preceding delivery program linked to the broadcast program, the preceding delivery program detection unit 501 ends this processing. If it is determined that there is a preceding delivery program associated with the broadcast program, the preceding delivery program information acquisition unit 502 is notified of that fact (description about the program of this preceding delivery program).

  The preceding delivery program information acquisition unit 502 obtains the program information of the preceding delivery program based on the notified description of the preceding delivery program (step S604). For example, the preceding distribution program information acquisition unit 502 acquires the program information of the preceding distribution program from the URL of the distribution source server on the Internet via the communication control unit 230.

  Further, as shown in FIG. 7, the preceding delivery program information acquisition unit 502 adds the program identification information of the linked main broadcast program to the program information of the acquired preceding delivery program. Then, the preceding delivery program information acquisition unit 502 stores the program information of the preceding delivery program to which the program identification information is added in the preceding delivery program information storage unit 503 (step S701).

  At the same time, the preceding delivery program information acquisition unit 502 adds the stored information to the program information of the preceding delivery program stored in the broadcast program information storage unit 402 and updates the description content (step S702). ). For the stored information, for example, a stored flag indicating whether or not the information has been stored may be set to ON (indicating that it has been stored).

(3) Program Information Providing Function for Main Broadcast Program and Preceding Distribution Program With reference to FIG. 8, the “program information providing function for main broadcasting program and preceding distribution program” of digital broadcast receiving apparatus 100 will be described.

  The main broadcast program information providing unit 801 reads program information of a desired broadcast program from the broadcast program information storage unit 402 and provides the read program information of the desired broadcast program to the program difference information determination unit 234. The program information of the broadcast program includes a description of the preceding delivery program linked to the broadcast program.

  The preceding delivery program information providing unit 802 reads program information of a desired preceding delivery program from the preceding delivery program information storage unit 503 of the preceding delivery program control unit 233. Then, the program information of the read desired preceding delivery program is provided to the program difference information determination unit 234. The preceding delivery program information providing unit 802 can also provide the program difference information determination unit 234 with the program information of the linked main broadcast program related to the preceding delivery program.

(4) Difference information determination function regarding difference between preceding distribution program and main broadcast program “Difference information determination function regarding difference between previous distribution program and main broadcast program” of digital broadcast receiving apparatus 100 with reference to FIGS. 2 and 9 Will be described.
As shown in FIG. 9, the program difference information determination unit 234 shown in FIG. 2 acquires the program information of the main broadcast program linked to the preceding distribution program by the processing by the main broadcast program information providing unit 801 (step S901). ). Subsequently, the program difference information determination unit 234 acquires the program information of the preceding delivery program (step S902).

  Next, the program difference information determination unit 234 compares the program information of the preceding delivery program acquired in step S901 with the program information of the main broadcast program acquired in step S902 (step S903). Then, based on the comparison result, the program difference information determination unit 234 outputs the difference result and the difference contents between the program information of the preceding distribution program and the program information of the main broadcast program (step S904).

  As described above, the program difference information determination unit 234 performs a process of determining a difference between the program information of the preceding delivery program and the program information of the main broadcast program (hereinafter referred to as “difference determination process”). This difference determination process is performed for subtitle / character super (at least one of subtitle and character super) and ES.

(4-a) Difference information determination processing for subtitles / superimpose (difference determination processing)
The program difference information determination unit 234 performs difference information determination (difference determination) for subtitles / superimposes using PMT and EIT.
The program difference information determination unit 234 determines difference information with respect to the caption / text supervision of the main broadcast program when the user views the main broadcast program. In addition, when the difference information for the subtitles / character superimposes of the preceding delivery program is determined and notification of these determinations is made by display (hereinafter referred to as “display notification”), refer to the descriptors described in the PMT and EIT. To do.

  Specifically, the program difference information determination unit 234 determines whether or not a subtitle / text super ES (0x06) exists in the stream identification descriptor data “stream_type” of the PMT, as to whether the subtitle / character super ES is included in the broadcast. See if you want to. Further, the program difference information determination unit 234 refers to whether or not the data “data_component_id” in the data encoding scheme descriptor described in the PMT is a caption / character super (0x00008). Further, it is referred to whether the setting parameter for additional information identification is “subtitle:“ 01 ”(program synchronization)”, “character superimpose:“ 00 ”(asynchronous) or“ 10 ”(synchronization)”. Thereby, the program difference information determination part 234 can know whether it is a caption or a character supermarket.

Further, the program difference information determination unit 234 can know the language information used for the caption by referring to the data component descriptor described in the EIT.
When the program difference information determination unit 234 determines and notifies the EIT of the difference information for the subtitle / superimpose of the main broadcast program and the subtitle / superimpose of the preceding delivery program other than when viewing the main broadcast program, Refers to the data component descriptor being described. Thereafter, the program difference information determination unit 234 acquires the presence / absence of caption / superimpose and language information used for the caption, and determines the difference between the preceding distribution program and the main broadcast program. Here, “when the main broadcast program is not viewed” refers to the time when the program information or the EPG display is performed before the start of the broadcast program when the preceding distribution program is viewed.

(4-b) Difference information determination process for ES (difference determination process)
The program difference information determination unit 234 performs difference information determination (difference determination) for video ES, audio ES, and the like using PMT and EIT in the same manner as the difference information determination processing (difference determination processing) for caption / superimpose. To do.

  When viewing the main broadcast program by the user, the program difference information determination unit 234 determines the difference information for the video ES / audio ES of the main broadcast program and the difference information for the video ES / audio ES of the preceding delivery program, and notifies the display. . In this case, the descriptor described in PMT and EIT is referred.

  Specifically, the program difference information determination unit 234 determines whether or not the video ES and audio ES exist in the data “stream_type” in the stream identification descriptor of the PMT as to whether or not the broadcast includes the video ES and audio ES. See if. Further, the program difference information determination unit 234 refers to the component group descriptor and audio component descriptor described in the EIT. Thereby, the program difference information determination part 234 can know the detailed information regarding the several video ES and audio | voice ES.

  The program difference information determination unit 234 determines difference information for the video ES and audio ES of the main broadcast program and difference information for the video ES and audio ES of the pre-distributed program other than when viewing the main broadcast program. . The time other than viewing the main broadcast program means, for example, the time when viewing the pre-distributed program or the time when program information or EPG display is performed before the start of the broadcast program. In this case, the difference between the preceding delivery program and the main broadcast program is determined by referring to the descriptor described in the EIT and acquiring detailed information on the plurality of video ESs and audio ESs.

  Further, the program difference information determination unit 234 can perform the difference information determination process based on PSI / SI information such as EIT and PMT. Difference information determination processing includes, for example, “different image quality and sound quality”, “different services associated with programs by two-way communication”, “different contents of linked data broadcasting”, “different services by billing”, etc. Do about the item.

  On the other hand, the program difference information determination unit 234 performs processing on the program information (meta information) of the VOD content acquired by the preceding delivery program information acquisition unit 502. In this process, the content is analyzed from a description document such as HTML (HyperText Markup Language) or XML (Extensible Markup Language) acquired from the VOD server via the communication control unit 230. By obtaining subtitle / character super information, ES information such as video ES / audio ES, and the like by this analysis, difference information determination processing for ES can be performed.

(5) Preceding Distribution Program Viewing History Storage Function The “preceding distribution program viewing history storage function” of the digital broadcast receiving apparatus 100 will be described with reference to FIGS. 2, 5, and 10.

  In FIG. 2, when the user operates remote controller 226 to instruct playback (viewing) of a desired preceding delivery program (hereinafter referred to as “preceding delivery program playback instruction”), the preceding delivery program playback instruction is transmitted from remote controller 226 to digital broadcasting. It is transmitted to the receiving device 100.

  In the digital broadcast receiving apparatus 100, the light receiving unit 227 receives a preceding delivery program reproduction instruction. The preceding delivery program playback instruction is output to the VOD playback control unit 232 via the system control unit 223. The VOD reproduction control unit 232 makes a distribution request for a desired preceding distribution program to the VOD server on the Internet via the communication control unit 230 in accordance with the input instruction for reproducing the preceding distribution program. Then, a reproduction control process for the preceding distribution program distributed from the VOD server that has received the distribution request is performed.

  In the preceding delivery program control unit 233 shown in FIG. 5, when the preceding delivery program is played, the preceding delivery program viewing history control unit 504 reproduces the preceding delivery reproduced in the preceding delivery program information storage unit 503 shown in FIG. Program information of the program is acquired (step S1001). Then, it is determined whether or not the viewed flag in the acquired program information is OFF (to be regarded as unreproduced) (step S1002).

  Next, when it is determined in step S1002 that the viewed (reproduced) flag is OFF (to be regarded as unreproduced), the preceding distribution program viewing history control unit 504 sets the viewed flag from OFF to ON (viewing). (Step S1003). Note that the preceding delivery program viewing history control unit 504 sets the viewing finished (reproduced) (turns on the viewing finished flag) when the preceding delivery program is reproduced (viewed) even a little. Note that the preceding distribution program viewing history control unit 504 ends this processing when it is determined in step S1002 that the viewed flag is not OFF (not viewed) (when the viewed flag is ON). .

(6) Difference information notification control function regarding difference between preceding distribution program and main broadcast program Referring to FIGS. 11 to 18, “difference information notification control function regarding difference between previous distribution program and main broadcast program” Will be described.

  In the difference information notification control unit 236 illustrated in FIG. 18, the difference information notification setting unit 1801 instructs the display control unit 210 to display the setting screen 1100 illustrated in FIG. 11 on the video output unit 212. Further, the difference information notification setting unit 1801 indicates to the user whether or not to notify the user of the difference between the preceding delivery program and the main broadcast program on the setting screen 1100 to be displayed, or the presence / absence of difference and the difference Set to indicate whether to notify the contents.

  As illustrated in FIG. 11, the setting screen 1100 includes a setting field 1101, a setting field 1102, and a setting field 1103. In the setting column 1101, whether to notify the difference between the preceding distribution program and the main broadcast program when viewing the previous distribution program is set. In the setting column 1102, the main broadcast is performed when viewing the main broadcast program in which the previous distribution program exists. Whether to notify the difference between the program and the preceding delivery program is set. In the setting column 1103, this program information is displayed when the program information of the preceding delivery program is displayed on the display screen, when the program information of the main broadcast program in which the preceding delivery program exists is displayed on the display screen, and when the EPG is displayed. Whether or not there is a difference between the main broadcast program and the preceding distribution program is set in the area. In the setting column 1103, it is set whether or not to notify the difference between the main broadcast program and the preceding delivery program.

  The user can check the check fields in the setting fields 1101, 1102, and 1103 in the setting screen 1100 shown in FIG. In the corresponding setting field, it is possible to set the notification of the difference, or the notification of the presence / absence of the difference and the difference content. This simplifies operation.

The difference information notification setting unit 1801 acquires the setting contents (difference information notification setting information) by the user for the setting fields 1101, 1102, and 1103 in the setting screen 1100.
As shown in FIG. 12, when notifying the user of difference information indicating the difference between the preceding delivery program and the main broadcast program when viewing the preceding delivery program, the difference information notification control unit 236 determines whether the preceding delivery program has been reproduced. Is detected (step S1201). Thereafter, the difference information notification control unit 236 determines whether or not the preceding delivery program has been reproduced (step S1202).

When the difference information notification control unit 236 determines in step S1202 that the preceding delivery program has been reproduced, the difference information notification control unit 236 instructs the notification timing determination unit 1802 to perform predetermined processing.
The notification timing determination unit 1802 acquires, from the difference information notification setting unit 1801, difference information notification setting information (setting information set for the setting field 1101 in the setting screen 1100) at the time of viewing the preceding delivery program (step S1). S1203).

  Next, it is determined whether or not the difference information notification setting value as the acquired difference information notification setting information is ON, that is, whether or not it is set to notify the difference information (step S1204). If the difference information notification set value is ON as a result of the determination, the difference information notification determination unit 1803 is notified of that fact.

  The difference information notification determination unit 1803 acquires the program information of the preceding distribution program from the preceding distribution program information providing unit 802 (step S1205), and the program of the main broadcast program obtained by the program providing process by the main program information providing unit 801. Information is acquired (step S1206).

  The program difference information determination unit 234 performs a difference determination process between the preceding distribution program and the main broadcast program based on the program information of the previous distribution program and the program information of the main broadcast program (step S1207). As a result, the program difference information determination unit 234 outputs the difference information (preceding distribution program-main broadcast program difference information) to the difference information notification control unit 236.

  In the difference information notification control unit 236, the difference information notification determination unit 1803 acquires the difference information from the program difference information determination unit 234 and outputs the difference information to the difference information notification unit 1804. The difference information notification unit 1804 performs display notification processing for the difference information acquired from the difference information notification determination unit 1803 (step S1208). The difference information is displayed by the video output unit 212 via the display control unit 210.

  FIG. 13 shows an example of a screen for notifying the user by displaying difference information. In the example of FIG. 13, when viewing the preceding delivery program, “no Japanese subtitles” and “SD broadcast program (SD image quality)” are displayed as difference information. Thereby, the user can determine whether or not to view the preceding delivery program.

  Also, as shown in FIG. 14, the difference information notification control unit 236 shown in FIG. 18 performs a process of detecting whether or not the main broadcast program is started when notifying the user of the difference information when the user watches the main broadcast program. This is performed (step S1401). Subsequently, the difference information notification control unit 236 determines whether or not the main broadcast program has been selected (step S1402).

  If the difference information notification control unit 236 determines in step S1402 that the broadcast program is not selected, the difference information notification control unit 236 ends this process. On the other hand, if the difference information notification control unit 236 determines in step S1402 that the main broadcast program has been selected, the difference information notification control unit 236 instructs the notification timing determination unit 1802 to perform predetermined processing.

  The notification timing determination unit 1802 acquires the difference information notification setting information (setting information set for the setting field 1102 in the setting screen 1100) at the time of viewing this broadcast program from the difference information notification setting unit 1801 (step S1). S1403). The notification timing determination unit 1802 determines whether or not the difference information notification setting value as the acquired difference information notification setting information is ON, that is, whether or not it is a setting for notifying the difference information with the preceding distribution program when viewing this broadcast program. (Step S1404).

  If the notification timing determination unit 1802 determines in step S1404 that the difference information notification setting value is not ON (is OFF), the processing ends. On the other hand, when the notification timing determination unit 1802 determines that the difference information notification setting value is ON in step S1404, the notification timing determination unit 1802 notifies the difference information notification determination unit 1803 to that effect.

  The difference information notification determination unit 1803 acquires the program information of the main broadcast program from the main broadcast program information providing unit 801 (step S1405). Then, the difference information notification determination unit 1803 acquires the program information of the preceding delivery program obtained by the program providing process by the main broadcast program information providing unit 801 (step S1406).

  Further, the difference information notification determination unit 1803 refers to the viewed flag of the preceding delivery program in the acquired program information of the preceding delivery program, and determines whether or not the preceding delivery program has been viewed (reproduced). (Step S1407). Furthermore, when the viewed flag is ON in step S1407, the difference information notification determination unit 1803 notifies the program difference information determination unit 234 to that effect when determining that the preceding delivery program has been viewed.

  The program difference information determination unit 234 performs a difference determination process between the preceding distribution program and the main broadcast program based on the program information of the previous distribution program and the program information of the main broadcast program (step S1408). Next, the program difference information determination unit 234 outputs difference information as a result of the difference determination process to the difference information notification control unit 236.

  In the difference information notification control unit 236, the difference information notification determination unit 1803 acquires the difference information from the program difference information determination unit 234 and outputs the acquired difference information to the difference information notification unit 1804. The difference information notification unit 1804 performs display notification processing of difference information acquired from the difference information notification determination unit 1803 (step S1409).

This difference information is displayed by the video output unit 212 via the display control unit 210. An example of a screen for notifying the display of the difference information is shown in FIG. In the example shown in FIG. 15, when viewing this broadcast program, “Japanese subtitles have been added” and “High-definition broadcast program (from SD image quality to HD image quality)” as difference information. Is displayed. Therefore, the user can determine whether or not to view the main broadcast program.
When the difference information notification determination unit 1803 determines in step S1407 that the viewed flag is OFF, and the difference information notification unit 1804 determines that the preceding delivery program has not been viewed, the difference information notification unit 1804 performs display notification of the difference information. I will not.

  Further, as shown in FIG. 16, the difference information notification control unit 236 shown in FIG. 18 performs processing for detecting whether the program information or EPG is displayed when the difference information is displayed on the program information and the EPG (step S1601). ).

  Thereafter, the difference information notification control unit 236 determines whether or not the execution of the display process of the program information or EPG has been started (step S1602). If the difference information notification control unit 236 determines in step S1602 that the execution of the display process of the program information or EPG is not started, the process ends.

  On the other hand, if the difference information notification control unit 236 determines in step S1602 that the display processing of the program information or the EPG has been started, the difference information notification control unit 236 instructs the notification timing determination unit 1802 to perform a predetermined process. . The notification timing determination unit 1802 receives from the difference information notification setting unit 1801 a difference information notification as difference information notification setting information (setting information set for the setting field 1103 in the setting screen 1100) when viewing the broadcast program. A set value is acquired (step S1603).

  The notification timing determination unit 1802 displays whether the difference information notification setting value is ON, that is, whether the difference information is displayed when the display screen of the program information of the preceding delivery program or the main broadcast program is started or when the EPG screen is started. It is determined whether or not (step S1604). If the notification timing determination unit 1802 determines in step S1604 that the difference information notification setting value is not ON (is OFF), the notification timing determination unit 1802 ends this processing. On the other hand, when the notification timing determination unit 1802 determines that the difference information notification setting value is ON in step S1604, the notification timing determination unit 1802 notifies the difference information notification determination unit 1803 to that effect.

  The difference information notification determination unit 1803 obtains the program information of the main broadcast program as the association source and the program information of the preceding delivery program from the preceding delivery program information providing unit 802 (steps S1605 and S1606). The program difference information determination unit 234 performs a difference determination process between the preceding distribution program and the main broadcast program based on the program information of the previous distribution program and the program information of the main broadcast program (step S1607). Thereafter, the program difference information determination unit 234 outputs difference information as a result of the difference determination process to the difference information notification control unit 236.

  In the difference information notification control unit 236, the difference information notification determination unit 1803 acquires the difference information from the program difference information determination unit 234. Then, based on the acquired difference information, it is determined whether or not there is a difference between the main broadcast program and the preceding delivery program (step S1608). If the difference information notification determination unit 1803 determines in step S1608 that the difference does not exist, the difference information notification determination unit 1803 ends the process. On the other hand, if it is determined that the difference exists, the acquired difference information is output to the difference information notification unit 1804. The difference information notification unit 1804 performs display processing of the difference information acquired from the difference information notification determination unit 1803 (step S1609).

  This difference information is displayed by the video output unit 212 via the display control unit 210. An example of a screen for displaying the difference information is shown in FIG. The example shown in FIG. 17 is “high-definition broadcast program” and “high-definition broadcast program” as the difference information indicating the difference between the preceding distribution program and the main broadcast program at the time of program information display or EPG display. ”(HD image quality)”. Thereby, the user determines from this result whether or not the main broadcast program or the preceding delivery program should be viewed.

In the first embodiment, the following is exemplified as the timing for notifying the difference information.
(1) When notifying the user of difference information indicating a difference between the preceding delivery program and the main broadcast program when the user views the preceding delivery program (see FIG. 12).
(2) When notifying the user of difference information indicating a difference between the main broadcast program and the preceding delivery program when the user views the main broadcast program (see FIG. 14).
(3) When displaying the difference information indicating the difference between the preceding delivery program and the main broadcast program on the program information and the EPG (see FIG. 16).

  The present invention is not limited to this, and the difference information may be notified at the following timing. That is, the timing for notifying the difference information includes the following.

(A) When a reservation is made for at least one of the preceding distribution program and the main broadcast program.
(B) When the reservation of at least one of the preceding distribution program and the main broadcast program is deleted.
(C) A case where this program is purchased when at least one of the preceding distribution program and the main broadcast program is a charged program.

  At each of these timings, the broadcast program information acquisition unit 235 acquires and stores the program information of the original broadcast program to be linked, and the preceding distribution program control unit 233 acquires the preceding distribution program linked to the main broadcast program. After being stored, it occurs in response to the user's operation with the remote control 226.

  Therefore, when the difference information notification control unit 236 notifies the difference information at the timings (a), (b), and (c), (3) when the difference information is displayed on the program information and the EPG ( The processing according to the same processing procedure as in FIG. 16 is performed.

According to the first embodiment, since the user can clearly distinguish the difference between the preceding delivery program and the main broadcast program based on the difference information, the user himself can easily determine the value.
In addition, a difference between a VOD preceding distribution program and a broadcast main broadcasting program is shown as determination information when the user determines whether or not to view a desired main broadcasting program or a preceding distribution program related to the main broadcasting program. The difference information can be notified to the user.

  Further, according to the first embodiment, when viewing of the main broadcast program is scheduled, whether or not the main broadcast program should be viewed with the difference information indicating the difference between the preceding delivery program and the main broadcast program. The user can be notified as determination information. For this reason, when the user views the main broadcast program, the main broadcast program is, for example, a message that “Japanese subtitles have been added” and “high-definition broadcast program” (HD image quality) compared to the preceding distribution program. )) ”. As a result, the user can determine whether or not to watch the broadcast program.

  Further, according to the first embodiment, when the preceding delivery program is scheduled to be played back by VOD, the judgment information for judging whether or not the preceding delivery program related to the main broadcast program should be viewed based on the difference information. Can be notified to the user. Therefore, the user can know the difference between the preceding delivery program and the main broadcast program when viewing the preceding delivery program, and can determine whether or not to view the preceding delivery program.

  Furthermore, according to the first embodiment, when the program information of the main broadcast program, the program information of the preceding delivery program by VOD, or the electronic program guide information is displayed, the difference information is also notified to the user and displayed. be able to. Therefore, the user can determine whether or not to watch the main broadcast program or the preceding delivery program.

(Second Embodiment)
Next, a digital broadcast receiving apparatus according to the second embodiment will be described. The digital broadcast receiving apparatus according to the second embodiment has the same functional configuration as that of the digital broadcast receiving apparatus 100 according to the first embodiment shown in FIG.

However, in the second embodiment, in place of the function (2) for acquiring the preceding distribution program and the storage function linked to the broadcast program in the first embodiment, the function for acquiring and storing the next preceding distribution program have.
That is, the function for acquiring the program information of the preceding distribution program from PSI (program specifying information) / SI (program arrangement information) is used in the function for acquiring and storing the preceding distribution program. In other words, the digital broadcast receiving apparatus acquires a pre-distributed program by broadcasting and also acquires a main broadcast program by broadcasting.

  In the second embodiment, the preceding delivery program information acquisition unit 502 and the preceding delivery program detection unit 501 of the preceding delivery program control unit 233 have the function of the first acquisition unit, and the broadcast program information acquisition unit 235 broadcast program. The information acquisition unit 401 has the function of the second acquisition unit. Further, the program difference information determination unit 234 has the function of the determination means. Also, the difference information notification unit 1804 of the difference information notification control unit 236 has the function of the notification means. The difference information notification setting unit 1801 of the difference information notification control unit 236 has a function of setting means for setting whether to notify difference information. In addition, the determination unit performs preceding based on the program information acquired by the first acquisition unit (preceding distribution program detection unit 501) and the program information acquired by the second acquisition unit (broadcast program information acquisition unit 401). A function of determining a difference between the distribution program and the main broadcast program;

  Accordingly, in the second embodiment, when the difference information notification unit 1804 is scheduled to output (view) the main broadcast program, the difference between the preceding distribution program and the main broadcast program is determined based on the determination result by the determination unit. It has a function of notifying the user of the difference information indicating.

  In addition, when playback (viewing) of the preceding delivery program is scheduled, it has a function of notifying the user of difference information indicating a difference between the preceding delivery program and the main broadcast program based on the result of determination by the determining means. Further, when at least one of the program information of the main broadcast program, the program information of the preceding distribution program, and the electronic program guide information is displayed, the preceding distribution program and the main broadcast program are determined based on the result of determination by the determination means. It has a function of notifying the user of difference information indicating a difference from the user.

Next, the “difference information notification control function regarding the difference between the preceding delivery program and the main broadcast program” of the digital broadcast receiving apparatus 100 will be described with reference to FIGS. 2, 10, 18 to 21.
In the preceding delivery program control unit 233 shown in FIG. 18, the preceding delivery program detection unit 501 performs the preceding delivery program detection unit 501 based on the program information (SI information) output from the program information decoding unit 206 shown in FIG. Processing for detecting a delivery number is performed (step S1901). The preceding delivery program detection unit 501 acquires program information of the preceding delivery program. Thereafter, the preceding delivery program detection unit 501 stores the acquired program information in the preceding delivery program information storage unit 503 (step S1902).

When the preceding delivery program viewing history control unit 504 selects a preceding delivery program by the user's operation of the remote controller 226, the preceding delivery program viewing history control unit 504 sets the viewed flag according to the processing procedure similar to the processing procedure of the first embodiment shown in FIG. It is stored in the preceding delivery program information storage unit 503 as ON.
That is, when the preceding delivery program is selected, the preceding delivery program viewing history control unit 504 acquires the program information of the preceding delivery program stored in step S1902 in the preceding delivery program information storage unit 503. Thereafter, the preceding distribution program viewing history control unit 504 determines whether or not the viewed flag in the acquired program information is OFF (that is, unreproduced). As a result of this determination, if the viewed flag is OFF, the preceding distribution program viewing history control unit 504 sets the viewed flag related to the program information of the preceding distribution program in the preceding distribution program information storage unit 503 from OFF to ON ( Change to “viewed”.

Next, as shown in FIG. 20, the preceding delivery program control unit 233 shown in FIG. 18 detects the program end of the preceding delivery program (step S2001).
When the preceding delivery program control unit 233 detects the program end of the preceding delivery program, the preceding delivery program control unit 233 causes the preceding delivery program viewing history control unit 504 to view the preceding delivery program from the preceding delivery program information storage unit 503. A completed flag is acquired (step S2002). Thereafter, the preceding distribution program viewing history control unit 504 determines whether or not the acquired viewed flag is OFF (step S2003).

  When the preceding distribution program viewing history control unit 504 determines in step S2003 that the viewed flag is OFF, the preceding distribution program viewing history control unit 504 deletes the program information of the preceding distribution program from the preceding distribution program information storage unit 503 (step S2004). On the other hand, the preceding distribution program viewing history control unit 504, which has determined that the viewed flag is not OFF (ON) in step S2003, at this timing, the program of the preceding distribution program from the preceding distribution program information storage unit 503. Information is not deleted.

  Furthermore, when the broadcast program information acquisition unit 235 shown in FIG. 18 detects the end of the program of the main broadcast program as shown in FIG. 21 (step S2101), it is described and linked to the program information of the main broadcast program. The description information of the preceding delivery program is referred to (step S2102). Next, the broadcast program information acquisition unit 235 deletes the program information of the preceding delivery program linked to the main broadcasting program from the preceding delivery program information storage unit 503 based on the description information of the preceding delivery program (step) S2103).

In the second embodiment, as described above, when the preceding delivery program control unit 233 acquires the program information of the preceding delivery program from the PSI / SI, the program information of the preceding delivery program is stored in the preceding delivery program information storage unit 503. To do.
Then, the difference information notification control unit 236 shown in FIG. 18 notifies the user of the difference information by the following control process as in the first embodiment.
(1) Notifying the user of difference information indicating a difference between the preceding delivery program and the main broadcast program when the user views the preceding delivery program.
(2) Notifying the user of difference information indicating a difference between the main broadcast program and the preceding delivery program when the user views the main broadcast program.
(3) The difference information indicating the difference between the preceding delivery program and the main broadcast program is displayed on the program information and the EPG.

  That is, the difference information notification control process when notifying the user of the difference information (1) is the same as the difference information notification control process according to the processing procedure of the first embodiment shown in FIG. Also. The difference information notification control process for notifying the user of the difference information (2) is the same as the difference information notification control process according to the processing procedure of the first embodiment shown in FIG. Furthermore, the difference information notification control process in the case of displaying the difference information (3) is the same as the difference information notification control process according to the processing procedure of the first embodiment shown in FIG.

  As described above, according to the second embodiment, the difference information is used as the determination information when determining whether or not the user should view a desired main broadcast program or a preceding distribution program related to the main broadcast program. The user can be notified.

(Third embodiment)
Next, a digital broadcast receiving apparatus according to the third embodiment will be described. The digital broadcast receiving apparatus according to the third embodiment has the same functional configuration as that of the digital broadcast receiving apparatus 100 according to the first embodiment shown in FIG.

  In the third embodiment, the digital broadcast receiving apparatus has a function for controlling the viewing history of the preceding delivery program. This viewing history control function is a function for displaying difference information when a portion (unviewed scene) that is not viewed at the time of playback of the preceding delivery program exists in the main broadcast program. In other words, the digital broadcast receiving apparatus according to the third embodiment performs display notification control based on an unviewed part (unreproduced part).

  In the third embodiment, the preceding distribution program information acquisition unit 502 of the preceding distribution program control unit 233 has the function of the first acquisition unit, and the broadcast program information acquisition unit 401 of the broadcast program information acquisition unit 235 performs the second acquisition. It has the function of means. The program difference information determination unit 234 has the function of the determination unit, and the difference information notification unit 1804 of the difference information notification control unit 236 has the function of the notification unit. The difference information notification setting unit 1801 of the difference information notification control unit 236 has a function of setting means for setting whether to notify difference information. The difference information notification determination unit 1803 of the difference information notification control unit 236 has a function of a control unit that performs control to notify difference information indicating a difference between the preceding distribution program and the main broadcast program in accordance with the reproduction status of the preceding distribution program. Have.

  Therefore, in the third embodiment, when the difference information notification unit 1804 of the difference information notification control unit 236 is scheduled to view the main broadcast program, the difference information indicating the difference between the preceding distribution program and the main broadcast program is displayed by the user. It has a function to notify. When viewing of the preceding delivery program is scheduled, the user is notified of the difference information indicating the difference between the preceding delivery program and the main broadcast program based on the result of determination by the determination means (program difference information determination unit 234). It has the function to do. Further, when at least one of the program information of the main broadcast program, the program information of the preceding delivery program, and the electronic program guide information is displayed, it is based on the result of determination by the determination means (program difference information determination unit 234). And a function of notifying the user of the difference information.

Next, with reference to FIG. 22, the viewing history control function of the preceding delivery program of the digital broadcast receiving apparatus 100 (display notification control performed when an unviewed part (unviewed scene) exists in the broadcast program). explain. Note that there are cases where an unviewed part (unviewed scene) exists, for example, when a scene not included in the preceding delivery program is broadcast on the main broadcast program, or when the user stops playing the preceding delivery program halfway, This occurs when an unreproduced scene is broadcast on the main broadcast program.
In the preceding delivery program control unit 233 shown in FIG. 18, the preceding delivery program viewing history control unit 504 stores detailed information (viewing history detailed information) related to the viewing history of the preceding delivery program in the preceding delivery program information storage unit 503. . The viewing history detailed information to be stored includes a viewing start point (plurality) and a viewing end point (plurality).

  The difference information notification control unit 236 shown in FIG. 18 notifies the user of difference information indicating a difference between the main broadcast program and the preceding distribution program when the user views the main broadcast program. In this case, as shown in FIG. 22, a process of detecting the start of the main broadcast program (main broadcast program start detection process) is performed (step S2201), and it is determined whether or not the main broadcast program has been selected.

  When the difference information notification control unit 236 detects that the main broadcast program has been selected, the difference information notification control unit 236 instructs the notification timing determination unit 1802 to perform predetermined processing. The notification timing determination unit 1802 acquires the program information of the preceding delivery program from the preceding delivery program information providing unit 802 (step S2202), and refers to the viewing history detailed information regarding the obtained preceding delivery program (step S2203).

Also, the notification timing determination unit 1802 determines whether or not there is an unviewed part (unviewed scene) in the broadcast program based on the viewing history detailed information referred to in step S2203 (step S2204). The notification timing determination unit 1802 outputs the determined result (start point of the unviewed part of the preceding delivery program) to the difference information notification determination unit 1803.
The difference information notification determination unit 1803 acquires the start point of the unviewed part of the preceding delivery program from the notification timing determination unit 1802. When the reproduction start of the unviewed part of the preceding delivery program is detected (step S2205), the difference information notification determination unit 1803 acquires the program information of the main broadcast program from the main broadcast program information providing unit 801 shown in FIG. 8 (step S2205). S2206).

  The difference information notification determination unit 1803 displays difference information indicating the difference between the main broadcast program acquired in step S2206 and the preceding delivery program associated therewith. At the same time, the difference information notification determination unit 1803 displays a message indicating that a part (scene) that is not viewed during playback of the preceding delivery program exists in the broadcast program (step S2207). The difference information and the message are displayed by the video output unit 212 via the display control unit 210.

  As described above, the difference information notification control unit 236 displays the difference information when it is determined that an unviewed part exists in the preceding delivery program. At the same time, the difference information notification control unit 236 displays a message indicating that there is a portion (scene) that is not viewed during playback of the preceding delivery program.

  As described above, according to the third embodiment, it is possible to notify and display a message to the user that there is a part (scene) that is not viewed during playback of the preceding delivery program in the main broadcast program. .

It is a block diagram which shows the connection form of the digital broadcast receiver which concerns on 1st Embodiment. It is a block diagram which shows the function structure of the digital broadcast receiver which concerns on 1st Embodiment. It is a figure which shows the time relationship between the preceding delivery program and 1st broadcast program which concern on 1st Embodiment. It is a figure explaining the program information acquisition function of the broadcast program of the digital broadcast receiver which concerns on 1st Embodiment. It is a figure explaining the acquisition function and storage function of a preceding delivery program linked | related with the broadcast program of the digital broadcast receiver which concerns on 1st Embodiment. It is a flowchart which shows the process sequence of the process which acquires the program information of the preceding delivery program by the digital broadcast receiver which concerns on 1st Embodiment. Processing of updating program information stored in relation to the preceding delivery program and the main broadcasting program linked to the preceding delivery program after acquiring the program information of the preceding delivery program by the digital broadcast receiving apparatus according to the first embodiment It is a flowchart which shows a procedure. It is a figure explaining the program information provision function of the main broadcast program of the digital broadcast receiver which concerns on 1st Embodiment, and a preceding delivery program. It is a flowchart which shows the process sequence of the process which compares with the program information of the broadcast program by the digital broadcast receiver which concerns on 1st Embodiment, and the program information of a preceding delivery program. It is a flowchart which shows the process sequence of the process which memorize | stores the viewing history of the preceding delivery program by the digital broadcast receiver which concerns on 1st Embodiment. It is a figure which shows an example of the setting screen for setting whether to notify the difference information which shows the difference with the preceding delivery program by the digital broadcast receiver which concerns on 1st Embodiment, and this broadcast program. It is a flowchart which shows the process sequence of the process which notifies the difference information which shows the difference between a preceding delivery program and this broadcast program at the time of viewing and listening of a preceding delivery program by the digital broadcast receiver which concerns on 1st Embodiment. It is a figure which shows an example of the screen which displays and notifies the difference information which shows the difference between a preceding delivery program and this broadcast program at the time of viewing and listening of a preceding delivery program by the digital broadcast receiver which concerns on 1st Embodiment. It is a flowchart which shows the process sequence of the process which notifies the difference information which shows the difference between a preceding delivery program and this broadcast program at the time of viewing of the broadcast program by the digital broadcast receiver which concerns on 1st Embodiment. It is a figure which shows an example of the screen which displays and notifies the difference information which shows the difference between a preceding delivery program and this broadcast program at the time of viewing of this broadcast program by the digital broadcast receiver which concerns on 1st Embodiment. It is a flowchart which shows the process sequence of the process which displays the difference information which shows the difference between a prior delivery program and this broadcast program at the time of the display of the program information by the digital broadcast receiver which concerns on 1st Embodiment, or EPG. It is a figure which shows an example of the screen which displays the difference information which shows the difference between a preceding delivery program and this broadcast program at the time of the display of the program information by the digital broadcast receiver which concerns on 1st Embodiment, or an EPG. It is a figure explaining the difference information notification control function regarding the difference between the preceding delivery program and the main broadcast program of the digital broadcast receiver according to the first embodiment. It is a flowchart which shows the process sequence of the storage process of the program information of a broadcast program in the case of acquiring the program information of the precedent delivery program by SI (program arrangement | sequence information) by the digital broadcast receiver which concerns on 2nd Embodiment. Processing procedure for deleting program information of preceding delivery program at the end of program of preceding delivery program when program information of preceding delivery program is acquired from SI (program arrangement information) by digital broadcast receiving apparatus according to the second embodiment It is a flowchart which shows. A processing procedure for deleting the program information of the preceding distribution program at the end of the broadcast program when the program information of the preceding distribution program is acquired from SI (program arrangement information) by the digital broadcast receiving apparatus according to the second embodiment. It is a flowchart to show. It is a flowchart which shows the process sequence of the display notification control process performed when an unviewed part exists in the preceding delivery program by the digital broadcast receiver which concerns on 3rd Embodiment. It is a block diagram which shows the detailed function structure of the difference information notification control part which concerns on 1st Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Digital broadcast receiver 230 Communication control part 231 Program information provision part 232 VOD reproduction | regeneration control part 233 Advance delivery program control part 234 Advance delivery program-main broadcast program difference determination part 235 Broadcast program information acquisition part 236 Difference information notification control part 401 Broadcast Program information acquisition unit 402 Broadcast program information storage unit 501 Pre-delivery program detection unit 502 Pre-delivery program information acquisition unit 503 Pre-delivery program information storage unit 504 Pre-delivery program viewing history control unit 801 Main broadcast program information provision unit 802 Pre-delivery program information Providing unit 1100 Setting screen 1801 Difference information notification setting unit 1802 Notification timing determination unit 1803 Difference information notification determination unit 1804 Difference information notification unit

Claims (10)

First acquisition means for acquiring program information of a preceding distribution program associated with the main broadcast program, which is distributed via the Internet line in advance of the main broadcast program transmitted via the broadcast signal;
Second acquisition means for acquiring program information of the main broadcast program;
Determination means for determining a difference between the preceding delivery program and the main broadcast program based on the program information acquired by the first acquisition means and the program information acquired by the second acquisition means;
A notification for notifying the user of difference information indicating a difference between the preceding delivery program and the main broadcast program when there is a difference between the preceding delivery program and the main broadcast program based on a result of the determination by the determination means. Means,
A digital broadcast receiver characterized by comprising: Reproduction control means for reproducing the preceding distribution program distributed via the Internet line in response to a user operation,
2. The digital according to claim 1, wherein the notification unit notifies the user of the difference information when the main broadcast program is viewed when the preceding distribution program has been reproduced by the reproduction control unit. Broadcast receiving device. Reproduction control means for reproducing the preceding distribution program distributed via the Internet line in response to a user operation,
2. The digital broadcast receiving apparatus according to claim 1, wherein the notifying unit notifies the user of the difference information when the preceding delivery program is played back by the playback control unit. Display control means for displaying program information of the main broadcast program according to a user operation,
2. The digital broadcast receiving apparatus according to claim 1, wherein the notification unit notifies the user of the difference information when displaying the program information of the main broadcast program by the display control unit. The notification means includes
Notifying the user of the difference information when reservation of at least one of the main broadcast program and the preceding delivery program is made;
The digital broadcast receiver according to claim 1. The notification means includes
The digital broadcast receiving apparatus according to claim 1, wherein when the reservation of at least one of the main broadcast program and the preceding delivery program is deleted, the difference information is notified to a user. The determination means includes an elementary stream for video, an elementary stream for audio, an elementary stream for data, a billing service for a program, a service associated with the program, a data broadcast linked to the program, a caption service, image quality, and sound quality. Determining a difference between the preceding delivery program and the main broadcast program regarding at least one of the elements;
The digital broadcast receiver according to claim 1, wherein the digital broadcast receiver is a digital broadcast receiver. The first acquisition unit and the second acquisition unit respectively acquire program information of the main broadcast program and program information of the preceding delivery program transmitted via the broadcast signal. The digital broadcast receiver as described in any one of 1-7. Reproduction control means for reproducing the preceding distribution program distributed via the Internet line in response to a user operation,
The notification means notifies the user that there is a scene that has not been reproduced when the main broadcast program includes a scene that has not been reproduced by the reproduction control means. The digital broadcast receiver according to claim 1. A first acquisition step of acquiring program information of a preceding delivery program associated with the main broadcast program, which is distributed via the Internet line in advance of the main broadcast program transmitted via the broadcast signal;
A second acquisition step of acquiring program information of the main broadcast program;
A determination step of determining a difference between the preceding delivery program and the main broadcast program based on the program information acquired by the first acquisition step and the program information acquired by the second acquisition step;
If there is a difference between the preceding delivery program and the main broadcast program based on the determination result of the determination step, a notification for notifying the user of difference information indicating the difference between the preceding distribution program and the main broadcast program Steps,
A digital broadcast receiving method comprising:

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