JP2002135150A - Multiplex broadcast receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multiplex broadcast receiver, with which a text information database added management information can be constructed, and necessary text information can be read efficiently by the retrieval applied the above database. SOLUTION: This multiplex broadcast receive which receives broadcasting radio, including text information layered on voice information, provides a means of fetching information, a means of fetching text information, a memory means of memorizing relating to the information fetched by the means for fetching the time information and the means of fetching text information, and a retrieval means for reading out the desired information from the memory means; the retrieval means provides a retrieval condition input means for inputting retrieval conditions, a detection means which detects the text information, corresponding to the input condition from the memory means, a list indicating means by which the text information detected by the detecting means as a list, based on the time information, a selecting means of selecting the desired text information in the list indicated by the list indication means, and a indication means by which the content of the text information selected through the selecting means is indicated in detail.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiplex broadcast receiver, and more particularly, to a multiplex broadcast receiver such as an RBDS receiver for receiving a broadcast wave including text information superimposed on audio information.

[0002]

2. Description of the Related Art As multiplex broadcasting in which text information is superimposed on broadcast waves, for example, FM multiplex broadcasting, text multiplex television broadcasting,
RDS (Radio Data Sys
tem), and RBDS (Radio Broadcastin) in the United States
g Data System).

For example, in the RBDS, an MB as a personal pager system conventionally performed by FM multiplexing is used.
RD for compatibility with S (Mobile Search System)
MMBS (Modified Mobile Security) for S data and pager
RBDS data obtained by time-division multiplexing of arch system data is superimposed on an FM broadcast signal and transmitted.

More specifically, the RDS data constituting the RBDS data on the transmission side includes a program identification code (PI), a program service name (PS), and a program type code (PS) of a broadcasting station. PTY), alternative station list (A
F) Data in a predetermined format including a traffic information broadcasting station identification code (TP), a traffic information broadcasting flag (TA), a radio text (RT), a date and time code (CT), and the like. The MMBS data includes a system code, a sleep code, a receiver ID, message data, and the like. Broadcast waves are generated in a time-division multiplexed manner with an audio signal as a main information signal.

On the receiving side, F
The subcarrier component of 57 kHz in the M detection output is extracted, the extracted signal is demodulated as a digital signal by a decoder, and the demodulated signal code is read synchronously.
The read signal code is sent to the microcomputer, and the microcomputer automatically displays character information related to the broadcasting station, such as a program name, and automatically searches for an alternative station according to the content of the received signal code. Are performed.

[0006] The signal code data captured by the RBDS as described above includes RT as character information composed of the above-described 64 alphanumeric text data, and data transmitted from a broadcasting station. C composed of date and time information
T.

The RT and CT in the RBDS are respectively temporarily stored in a memory as RBDS data.
Is used to display the date and time, and RT is displayed as character information that provides information related to the broadcast station such as broadcast station name data and program type. However, these are independent data from each other, and only the RT selected by the user can be stored in the memory. When the RT is stored in this memory, a memory number is simply assigned to the RT. The stored RT is managed based on the memory number. Also, C
T was a function that did not operate unless the user selected it. However, both the RT and the CT are transmitted from the broadcast station by a fixed algorithm regardless of the receiver.

[0008]

For this reason, if the number of RTs, which are character information, is stored in a memory, the number of RTs stored in the memory increases. If it is desired to read out and check the stored content later, the RT must be checked in the order of the memory number. There is no method, and there is a problem that it takes too much labor and time for the user to read necessary information desired by the user from the vast amount of information.

A function of displaying and storing character information other than when outputting radio sound is provided in an FM multiplex receiver or the like. However, the character information received in reverse except at the time of such radio sound output is not stored in the memory in distinction from other character information not received in reverse. Therefore, even if it is desired to preferentially view the contents stored by back reception later, there is no other way but to check all the character information in the order of the stored memory numbers.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can construct a database of character information to which management information related to character information is added, and utilize the database. It is an object of the present invention to provide a multiplex broadcast receiver capable of efficiently searching and viewing necessary character information.

[0011]

To achieve the above object, a multiplex broadcast receiver (1) according to the present invention comprises:
Time information capturing means for capturing time information in a multiplex broadcast receiver that receives broadcast radio waves including textual information superimposed on audio information, and text information capturing for capturing textual information included in the broadcast radio waves Means, a first storage means for storing the character information fetched by the character information fetching means and a time information at the time of fetching the character information in pairs, and a first storage means for storing the character information. First search means for searching for desired information from the information.
A search condition input means for inputting a search condition, and a character corresponding to a condition input through the search condition input means from information stored in the first storage means. Detecting means for detecting information; first list displaying means for displaying a list of the character information detected by the detecting means based on the time information; and a list displayed by the first list displaying means. And a first display unit for displaying in detail the contents of the character information selected via the first selection unit. It is characterized by having.

According to the multiplex broadcast receiver (1), the character information received and captured and the time information when the character information is captured and stored are paired to the first storage means. The character information that is stored and corresponds to the condition input via the search condition input unit is detected by the detection unit from information received from a plurality of stations stored in the first storage unit, Since the character information and the time information are displayed in a list by the first list display means, necessary character information can be effectively narrowed down from many character information. Further, it is possible to easily specify necessary character information from the narrowed-down information through the first selecting means, and to display the contents of desired character information in detail from the list by a simple operation. Can be
An efficient search can be performed to obtain desired character information, and the search time can be reduced.

A multiplex broadcast receiver (2) according to the present invention.
Is characterized in that, in the multiplex broadcast receiver (1), a date / time code received from a broadcast wave and taken in is used as time information taken in by the time information taking means.

According to the multiplex broadcast receiver (2), a date / time code received and received from a broadcast wave is included in the time information.
Since the hardware is used, accurate date and time information can be acquired by using the functions of the receiver without particularly adding new hardware. Further, since the date and time information and the received and captured character information are stored as a pair, it is possible to construct a database to which management information related to the character information is added, and the accurate Efficient search processing utilizing date and time information can be realized.

A multiplex broadcast receiver (3) according to the present invention.
Is characterized in that in the multiplex broadcast receiver (1), time information in a navigation system is used as time information fetched by the time information fetching means.

According to the multiplex broadcast receiver (3), the time information is fetched from the navigation system,
Since the time information and the received and fetched character information are stored in pairs, the data obtained by adding the management information related to the character information by utilizing the accurate time information in the navigation system. The construction of a database becomes possible,
Efficient search processing based on accurate time information can be realized.

A multiplex broadcast receiver (4) according to the present invention.
Is characterized in that, in the multiplex broadcast receiver (1), time information of a clock mounted on a vehicle is used as time information captured by the time information capturing means.

According to the multiplex broadcast receiver (4), the time information is normally taken from the clock mounted on the vehicle, and the time information and the received character information are stored in pairs. It is possible to construct a database to which management information related to text information is added by utilizing the time information fetched from the clock without increasing the cost, and the efficiency based on the time information is improved. Search processing can be realized.

A multiplex broadcast receiver (5) according to the present invention.
In a multiplex broadcast receiver that receives broadcast radio waves including text information superimposed on audio information, time information capturing means for capturing time information, and text information for capturing text information included in the broadcast radio waves Fetching means, and second storage means for storing the character information fetched by the character information fetching means, time information at the time of fetching the character information, and a reception frequency of the character information in association with each other. It is characterized by having.

According to the multiplex broadcast receiver (5), the character information is received in addition to the character information received and taken from a plurality of stations and the time information when the character information is taken and stored. Since the second storage means for storing the reception frequency in association with it is provided, it is possible to construct a database to which the management information related to the character information, which makes the retrieval easier, is added.

A multiplex broadcast receiver (6) according to the present invention.
Is characterized in that the multiplex broadcast receiver (5) includes a second search unit for searching for desired information from the information stored in the second storage unit.

According to the multiplex broadcast receiver (6), necessary character information can be searched based on the time information and the information on the reception frequency stored in the second storage means. A more efficient search can be performed to obtain desired character information, and the search time can be further reduced.

A multiplex broadcast receiver (7) according to the present invention.
In the multiplex broadcast receiver (6), when the second search means is a list display selecting means for selecting a list display, and when the list display is selected via the list display selecting means, A second list display unit for displaying a list of the character information stored in the second storage unit based on the time information and / or the reception frequency; and a second list display unit for displaying the character information. Second selection means for selecting desired character information from the list, and second display means for displaying in detail the contents of the character information selected via the second selection means. It is characterized by comprising.

According to the multiplex broadcast receiver (7), when the list display is selected via the list display selecting means, the character information received from the plurality of stations arranged in time series is converted into time information, And / or a list is displayed based on the reception frequency, so that the character information required can be easily specified from the list display based on the time information and the reception frequency by using the second selection means. The contents of desired character information can be displayed in detail from the list by a simple operation, and the search time can be reduced.

A multiplex broadcast receiver (8) according to the present invention.
In the multiplex broadcast receiver (6), the second search means includes a search condition input means for inputting a search condition, and a search condition information from information stored in the second storage means. Detecting means for detecting character information corresponding to the search condition input via the condition input means; and listing the character information detected by the detecting means based on the time information and / or the reception frequency. A third list display unit to be displayed; a third selection unit for selecting desired character information from a list displayed by the third list display unit; and a third selection unit. And a third display means for displaying the details of the selected character information in detail.

According to the multiplex broadcast receiver (8), character information corresponding to the search condition input via the search condition input means is received from a plurality of stations stored in the second storage means. The character information is detected from the obtained information by the detection means, and the character information is displayed as a list by the third list display means based on the time information and / or the reception frequency. Therefore, necessary character information can be effectively narrowed down from many pieces of character information, and necessary character information can be easily specified from the narrowed down information through the third selecting means. The contents of desired character information can be displayed in detail from the list by a simple operation, and the search time can be reduced.

A multiplex broadcast receiver (9) according to the present invention.
Means that in the multiplex broadcast receiver (8), the search condition input means can input any one of information on character information, time information, and reception frequency or a combination of these information as a condition. Features.

According to the multiplex broadcast receiver (9), any one of the character information, the date and time information, and the information on the reception frequency or a combination of these information can be input as the search condition. Therefore, it is possible to effectively narrow down the stored character information, thereby improving the search efficiency.

The multiplex broadcast receiver (1) according to the present invention
0) uses a date / time code received from a broadcast radio wave as time information fetched by the time information fetching means in any of the multiplex broadcast receivers (5) to (9). It is characterized by having.

According to the multiplex broadcast receiver (10), since the time information uses the date and time code received from the broadcast wave and taken in, the reception can be performed without particularly adding new hardware. By using the functions of the machine, accurate date and time information can be captured. Further, since the date and time information and the received and captured character information are stored as a pair, it is possible to construct a database to which management information related to the character information is added, and the accurate Efficient search processing utilizing date and time information can be realized.

The multiplex broadcast receiver (1) according to the present invention
1) is characterized in that in any one of the multiplex broadcast receivers (5) to (9), time information in a navigation system is used as time information fetched by the time information fetching means. I have.

According to the multiplex broadcast receiver (11), the time information is fetched from the navigation system, and the time information and the received and fetched text information are stored in pairs. Utilizing accurate time information in the navigation system, it is possible to construct a database to which management information related to character information is added,
Efficient search processing based on accurate time information can be realized.

The multiplex broadcast receiver (1) according to the present invention
2) In any one of the multiplex broadcast receivers (5) to (9), the time information captured by the time information capturing means uses time information of a clock mounted on a vehicle. Features.

According to the multiplex broadcast receiver (12), the time information is taken in from the timepiece normally mounted on the vehicle, and the time information and the received character information are stored in pairs. It is possible to construct a database to which management information related to text information is added by utilizing the time information fetched from the clock without increasing the cost, and the efficiency based on the time information is improved. Search processing can be realized.

The multiplex broadcasting receiver (1) according to the present invention
3) a back-reception selecting means for selecting whether or not to back-receive broadcast radio waves in any of the multiplex broadcast receivers (1) to (12) except at the time of outputting radio sound; When the back reception is selected through the reception selection means, a marking processing means for performing a marking process for the back reception identification on the back-received character information, and the character information identified by the marking processing means. And a back receiving storage unit for storing the back-received character information.

According to the multiplex broadcast receiver (13), when back reception is selected via the back reception selection means, the back-received character information is subjected to a marking process and stored. In addition, it is possible to easily confirm that the received character information is the back-received character information at the time of displaying the list, and to preferentially search for character information that the user has not seen.

The multiplex broadcast receiver (1) according to the present invention
4) In the multiplex broadcast receiver (13), a back reception priority display means for displaying a list of the character information stored in the back reception storage means with priority is provided.

According to the multiplex broadcast receiver (14), the back-reception priority display means can display the list of the back-received character information with priority, so that only the back-received character information is used. A search can be performed, information can be effectively narrowed down from character information that has not been viewed, and the search time can be further reduced.

The multiplex broadcast receiver (1) according to the present invention
5) is characterized in that in any one of the multiplex broadcast receivers (1) to (14), the multiplex broadcast receiver is an RBDS receiver.

According to the multiplex broadcast receiver (15), since the multiplex broadcast receiver is an RBDS receiver, there is no need to add new hardware, and the RBDS to be received is not required.
By utilizing information of data, that is, signal data transmitted from a broadcasting station, a database of character information to which management information is added can be constructed, and the database can be displayed in a list. In this case, it is possible to realize efficient search processing of character information using the list display.

[0041]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multiplex broadcast receiver according to the present invention will be described below with reference to the drawings. In the embodiment, an RBDS receiver will be described as an example of a multiplex broadcast receiver.

FIG. 1 is a block diagram showing a schematic configuration of an RBDS receiver according to Embodiment (1) of the present invention. In the figure, reference numeral 1 denotes an antenna, which is a receiving antenna for receiving an RBDS broadcast wave in which an audio signal and an RBDS data signal are multiplexed and a non-RBDS broadcast wave not including the RBDS data signal. The antenna 1 is connected to the receiving circuit 2,
The radio signal input to the antenna 1 is supplied to the input side of the receiving circuit 2. The output side of the receiving circuit 2 is an audio reproducing circuit 3
And the input side of the RBDS decoder 4. The output side of the audio reproduction circuit 3 is connected to the speaker 5.
The RBDS decoder 4 is connected to a microcomputer 6, which is connected to a receiving circuit via an audio reproduction circuit 3, a database memory 7, an operation unit 8, a display unit 9, and a PLL circuit 10. Is connected.

The receiving circuit 2 includes a high-frequency amplifier circuit, a mixer, an intermediate frequency amplifier circuit, a detection circuit (all not shown), etc., constituting a front end. Amplify the received signal at an intermediate frequency set by the local oscillation frequency supplied to the receiver, and then output an audio signal obtained by detection to the audio reproduction circuit 3 and RBDS the detected signal from the detected signal.
The data signal is extracted by a band pass filter (not shown) and supplied to the RBDS decoder 4.

The audio reproducing circuit 3 performs predetermined signal processing such as low-frequency amplification and stereo reproduction on the audio signal from the receiving circuit 2, and an amplifier (not shown) connected to the output side of the audio reproducing circuit 3. The voice is output from the speaker 5 via the.

The RBDS decoder 4 takes in the RBDS data signal extracted from the received radio wave, takes in the subcarrier component of 57 kHz from the FM detection output, and converts the bit stream of the RBDS data. Demodulate and P
Perform SK compound and differential decoding processing,
Demodulate the BDS data. This demodulated RBDS data
The block and group configuration for the
By detecting and correcting error data, the individual data described above is accurately extracted and transmitted as a digital signal to the microcomputer 6 connected to the RBDS decoder 4.

The database memory 7 connected to the microcomputer 6 is a memory for storing information relating to the character information of the RBDS data taken into the microcomputer 6. Although various storage states in the database memory 7 are conceivable, the examples shown in FIGS. (A) shows a state in which RT and CT are paired and numbered in the history order and stored. (B) shows R
This figure shows a state in which a back reception column for performing marking is provided so that T, CT, and RT stored in back reception can be distinguished, and they are associated with each other and numbered in the order of history and stored. (C) shows a state where the RT, the CT, and the reception frequency of the RT are associated with each other and numbered in the history order and stored. (D) shows a state where the RT, the CT, the reception frequency of the RT, and the RT stored in the back reception are associated with each other and numbered in the history order and stored. In the embodiment (1), the storage state shown in (d) is adopted, and the description will be made based on this storage state.

The display unit 9 displays a reception frequency in response to an instruction from the microcomputer 6 or displays the reception frequency on the RBDS.
If the station is a station, RT (character information) related to the broadcasting station such as a program name and a program type can be displayed. The operation unit 8 is provided with operation switches and the like so that various input processes can be performed. Then, the PLL circuit 10 controls the receiving circuit 2 to set the receiving frequency in accordance with the channel selection data from the microcomputer 6.
To supply a local oscillation frequency corresponding to the tuning data.

FIG. 3 shows an RBDS according to the embodiment (1).
FIG. 3 is a front view illustrating an example of a configuration of an operation unit 8 and a display unit 9 in the receiver. Operation unit 8 and display unit 9 of RBDS receiver
, A switch button such as an LCD display unit 22 serving as a display screen, a menu changeover switch 23a, a search condition input switch 23b, a list display switch 23c, a back reception list display switch 23d, and a back reception selection switch 23e. And a four-way designation switch 24 for performing various selection / designation operations on the display screen, and a decision key 25 for confirming various inputs.

The menu changeover switch 23a is a menu for radio reception, CD / MD, navigation, TV, etc.
A switch for switching to a display mode of character information. The search condition input switch 23b is a switch for switching the display screen to the search condition input screen. The list display switch 23c is a switch for switching to a list display screen of all character information stored in the database memory 7. The back reception list display switch 23d is a switch for switching to a screen for preferentially displaying a list of character information stored back in the database memory 7 that is received back. The back reception selection switch 23e is a switch for selecting whether or not to receive back and store the character information in the memory at times other than when outputting the radio sound. When the back reception selection switch 23e is turned on, a mark or the like indicating that the back reception is being performed may be displayed on the display screen to indicate that the back reception is being performed. The memory switch 23f is a switch for allowing the user to store necessary character information in the database memory 7.

Next, a process of storing received information performed by the microcomputer 6 will be described. FIG. 4 is a flowchart showing a process of storing received information performed by the microcomputer 6. First, it is determined in step 1 whether or not the radio sound is being output. If it is determined that the radio sound is being output, the process proceeds to step 2.

In step 2, it is determined whether the RBDS data is being received, that is, whether the RBDS data is superimposed on the received broadcast wave, and the RBDS data is being received. If it is determined, the process proceeds to step 3. on the other hand,
If the RBDS data is not being received in step 2, this process is repeated until the RBDS data is received.

In step 3, RBDS data and R
RT (character information) and CT (date and time information) included in the BDS data are fetched. In step 4, it is determined whether or not the memory switch 23f is turned on.
If so, go to step 5. In step 5, the RT (character information) of the captured RBDS data, the CT (date and time information) of the RBDS data received and received from the broadcasting station, and the reception frequency thereof are associated with each other. )
The processing for storing the data in the database memory 7 is performed as shown in FIG. When the number of pieces of information including RT (character information) to be stored in the database memory 7 reaches a predetermined maximum number of storages, the oldest information is deleted and new information is overwritten and stored. .

On the other hand, in step 4, the memory switch 23f
If is not ON, the process proceeds to step 6. In step 6, it is determined whether or not the automatic memory switch of the reception history is turned on. If it is turned on, the process proceeds to step 5, and if not, the process is terminated. The auto memory switch is set by holding down the memory switch 23f for a predetermined time.

On the other hand, if it is determined in step 1 that it is not during the time of outputting the radio sound, the process proceeds to step 7. In step 7, it is determined whether or not the back reception selection switch 23e is turned on. If it is turned on, the process proceeds to step 8, and if it is determined in step 7 that the back reception selection switch 23e is not turned on, the process is terminated. finish.

In step 8, it is determined whether or not the RBDS data is being received in reverse, and if the RBDS data is being received in the reverse, the process proceeds to step 9. If the RBDS data is not under the reception in step 8, this process is repeated until the RBDS data is received. At step 9, the RBDS data received back and the RT and CT received back included in the RBDS data are taken in, and the process proceeds to step 10.

In step 10, the RT (character information) captured by the back reception is subjected to a marking process for distinguishing from the RT (character information) not received by the back reception.
Proceed to step 5. In step 5, the RT (character information) subjected to the marking process indicating that the reception is the back reception and the CT are performed.
(Date and time information) and the reception frequency are associated with each other and stored in the database memory 7.

Next, the search display processing performed by the microcomputer 6 will be described. FIG. 5 is a flowchart showing the search display processing performed by the microcomputer 6. First, at step 11, the display mode of the character information is set by the menu changeover switch 23a.
It is determined whether the display mode has been switched. If it is determined that the display mode has not been switched, the process returns to step 11 again. On the other hand, if it is determined that the display mode has been switched, the process proceeds to step 12.

In step 12, it is determined whether or not the search condition input switch 23b has been turned on. If the search condition input switch 23b has been turned on, the process proceeds to step 13, where
If not, the process proceeds to step S17.

At step 13, a search process is performed.
That is, in step 12, the search condition input switch 23b
Is turned on, the screen of the LCD display unit 22 constituting the display unit 9 is switched to the search screen, for example, as shown in FIG. Characters such as alphabets and numbers are displayed on the display screen of the LCD display unit 22. Characters can be selected by a four-way designation switch 24 (the selected characters are different). Display form). By operating the enter key 25 with the character selected in this way, the selection of the character is confirmed,
It is displayed on the search condition input section 26 on the display screen.

As described above, in the search condition input section 26, the character of the character display section on the display screen is selected by operating the selection key of the four-direction designation switch 24 of the operation section 8, and the keyword is selected. If any of the character information, the date and time information, and the information on the reception frequency or a combination of these information is input as a condition, and the search condition is determined by the input operation of the determination key 25, the database memory 7 is entered. R stored in
A process of detecting information including RT (character information) corresponding to the input search condition from information including T (character information) is performed.

In the search condition input, various search conditions combining date and time, such as date designation search, date and time designation search, date and time period designation search, etc., and reception frequency are also specified. Various search conditions using a reception frequency such as a frequency search and a reception frequency band search can be input. Further, a search condition combining a keyword in character information, the above-mentioned date / time information and reception frequency information can be entered. You can also perform effective refined search by inputting.

Next, at step 14, the head n of the RT (character information) corresponding to the search condition detected at step 13
Processing for displaying a list of information including characters, CT (date and time information), and reception frequencies is performed.

FIG. 7 shows an example of a screen display on the LCD display unit 22 constituting the display unit 9 when a list of search results is displayed. Here, as display items, reception number, back reception check column, CT (date and time information), reception frequency,
RT (character information) is displayed in association with a list. In the RT (character information) column, only the n characters at the beginning of the sentence are displayed so as to fit in a space on one line. In the reverse reception check column, the R stored by the reverse reception is displayed.
A mark is added so that T (character information) can be understood. Here, it is marked by the symbol ○,
There is no particular limitation on the marking method. For example, a method can be used in which the form of displayed characters or the display color can be changed without specially providing a back reception check column to distinguish the information that has not been back received. Either method is acceptable. A number indicating the stored history order is assigned to the reception number column. In the CT (date and time) column, RT (character information)
The date and time when the data was imported are displayed.

Then, in this list, the desired RT
A cursor display 22a (the selected line has a different display form) is provided so as to select one line including (character information), and four directions on the entire panel 21 constituting the operation unit 9 are displayed. The cursor display 22a is moved by operating the up / down selection key of the operation switch 24, and a line including desired information can be selected. In step 15, the R to be read out of the information listed in step 14
T (character information) is selected by moving the cursor display 22a using the up / down selection keys of the four-direction designation switch 24,
It is determined whether or not the confirmation key 25 is turned on. If it is determined that the confirmation key 25 is turned on, the process proceeds to step S16.

In step 16, the process of reading the RT (character information) selected on the cursor display 22a is performed, the display of the list display screen is terminated, and the process of displaying the full text of the RT (character information) is performed. FIG. 8 shows a screen display example of the LCD display unit 22 displaying the full text of the RT (character information) selected and determined in step 15. The date and time information, the reception frequency, and the entire text of the character information composed of 64 alphanumeric characters are displayed. Step 1
If no selection / confirmation operation is performed in step 5, step 11
Returning to the display mode switching screen, the search display processing is repeated.

If it is determined in step 12 that the search condition input switch 23b has not been turned on, the process proceeds to step 1
Go to 7. In step 17, the list display switch 23c
Is turned on, and the list display switch 2
If it is determined that 3c is ON, the process proceeds to step 18.

At step 18, a history list display process is performed. Here, the screen is switched to a screen displaying a list of all memory histories of RT (character information) stored in chronological order. FIG. 9 shows a screen display example of the LCD display unit 22 constituting the display unit 9. The screen display example is substantially the same as the screen configuration shown in FIG. 7, and a memory list is displayed in the title item. A display of the memory history is made. Then, the process proceeds to step 15.

On the other hand, at step 17, the list display switch 2
If it is determined that 3c is not turned on, the process proceeds to step 19. In step 19, the back reception list display switch 23
It is determined whether or not d is ON. Step 19
If it is determined that the switch is ON, the process proceeds to step 20. In step 20, the back reception priority list is displayed. Here, the screen is switched to a screen displaying a list of memory histories of information including RT (character information) stored by back reception. FIG. 10 shows a screen display example of the LCD display unit 22 constituting the display unit 9, which is substantially the same as the screen configuration shown in FIG. 7; The check boxes are marked so that all of them are back reception. Thereafter, the process proceeds to step 15.

On the other hand, if it is determined in step 19 that the back reception list display switch is not turned on, it is determined that there is no need to preferentially display information including RT (character information) stored and stored back reception. Then, the search display processing ends.

In the multiplex broadcast receiver according to Embodiment (1), various switches (menu changeover switch 23a, search condition input switch 23b, list display switch 23c, Although the receiving list display switch 23d) is provided,
As another embodiment, one character information display switch is provided, and the mode is switched to a search condition input screen, a list display screen, and a back-list display screen according to the number of times the switch is pressed. Confirmation key 25 is displayed when displaying
It is also possible to adopt a configuration in which the operation mode is shifted to each execution mode by performing N operations.

According to the RBDS receiver according to the above embodiment (1), in addition to the character information received and taken in from a plurality of stations and the date and time information when the character information was taken and stored, the character information Can be stored in the database memory 7 in association with the received frequency of the received character information, so that a database of character information to which management information related to the character information can be easily added is constructed. be able to.

Further, the microcomputer 6 can search for necessary character information based on the character information, date / time information, and information on the reception frequency stored in the database memory 7. An efficient search operation can be performed to obtain desired character information, and the search time can be reduced.

Further, since the time information uses the date and time code received from the broadcast radio wave and taken in, the accurate date can be obtained by using the function of the receiver without particularly adding new hardware. Time information can be captured, and efficient search processing utilizing the date and time information can be realized.

In the search processing performed by the microcomputer 6, the information including the first n characters of the character information received from a plurality of stations by operating the list display selection switch 23c is displayed together with the date and time information and / or the reception frequency. Since the list is displayed in chronological order on a line-by-line basis, necessary character information can be easily specified by operating the four-direction designation switch 24 of the operation unit 8 based on the date and time information and the reception frequency from the list display. Can be. Further, by operating the enter key 25, the contents of the desired character information can be easily displayed in detail from the list, thereby enabling efficient search to obtain the desired information and shortening the search time for reading. can do.

In the search processing performed by the microcomputer 6, the character information corresponding to the search condition input on the search condition input screen which is switched by operating the search condition input switch 23b is stored in the database memory 7. Information that is detected from within and includes the first n characters of the corresponding character information,
Since a list can be displayed in chronological order on a line-by-line basis together with the date and time information and the reception frequency, necessary character information can be effectively narrowed down from many pieces of character information. Further, necessary character information can be easily specified from the narrowed information by operating the four-direction designation switch 24 of the operation unit 8. Further, the contents of the desired character information can be easily displayed in detail from the list by operating the confirmation key 25, so that an efficient search can be performed to obtain the desired character information, and a search time for reading out the information can be improved. Can be shortened.

Further, any one of character information, date and time information, and information relating to the reception frequency or a combination of these information can be input to the search condition input section 26 as a search condition. Necessary information can be effectively narrowed out of the stored information, and search efficiency can be improved.

When the back reception is selected by operating the back reception selection switch 23e, the back-received character information is marked and stored in the database memory 7, so that the list is displayed. At the time of display, it is possible to easily confirm that the received character information is the back-received character information, and it is possible to preferentially search for character information that the user has not seen.

Also, by operating the back reception list display switch 23d, the list of the received character information can be preferentially displayed in a list, so that the search based on the received character information can be performed. It is possible to effectively narrow down information from character information that has not been entered, and it is possible to further reduce the search time.

Since the multiplex broadcast receiver is an RBDS receiver, there is no need to add new hardware,
By utilizing the information of the received RBDS data, that is, the signal data transmitted from the broadcast station, the data base of the character information to which the management information related to the character information is added.
The database can be constructed in the database memory 7, and the database can be used for displaying a list, and efficient search processing of character information can be realized by using the displayed list.

The RBD according to the above-mentioned embodiment (1)
In the S receiver, the received RT (character information), CT (date and time information), and reception frequency are stored in the database memory 7 in association with each other, but are stored in the database memory 7. Regardless of the storage state of any one of FIGS. 2A to 2C, the above-described reception storage processing and search display processing can be performed in substantially the same manner. Almost the same effects as in the case of the RBDS receiver can be obtained.

FIG. 11 is a block diagram showing a schematic configuration of an RBDS receiver according to Embodiment (2) of the present invention.
The difference between the RBDS receiver shown in FIG. 11 and the configuration of the RBDS receiver according to Embodiment (1) shown in FIG.
The microcomputer 6a and the navigation system 11 are communicably connected to each other, and time information in the navigation system 11 is transmitted according to an instruction from the microcomputer 6a.
The point is that it is configured so that it can be taken into. Here, the microcomputer and the database memory having different functions are denoted by different reference numerals, and the other components having the same functions as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof will be omitted.

Next, a process of storing received information performed by the microcomputer 6a will be described. FIG. 12 is a flowchart showing a process of storing received information performed by the microcomputer 6a. Steps other than steps 3a, 3b, steps 9a, 9b, and step 5 are the same as those in the flowchart shown in FIG. 4, and therefore, the same steps will be denoted by the same reference characters. , Easy to do.

First, it is determined in step 1 whether or not the radio sound is being output. If it is determined that the radio sound is being output, the process proceeds to step 2. In step 2, the RBDS data
It is determined whether or not RBDS data is being received, that is, whether or not RBDS data is superimposed on the received broadcast radio wave.
If it is determined that the DS data is being received, the process proceeds to step 3. On the other hand, if the RBDS data is not being received in step 2, this process is repeated until the RBDS data is received.

In step 3a, RBDS data and RT (character information) included in the RBDS data are fetched. In step 3b, the navigation system 1 is sent from the microcomputer 6a to the navigation system 11.
1, the navigation system 11 that has received the request signal for reading the time information, receives the request signal, and performs processing for transmitting the time information to the microcomputer 6a.
a captures the time information.

In step 4, it is determined whether or not the memory switch 23f is turned on. If the memory switch 23f is turned on, the process proceeds to step 5. In step 5, the captured RBD
The RT (character information) in the S data and the time information fetched from the navigation system 11 in step 3b are paired as shown in FIG.
Is performed.

On the other hand, in step 4, the memory switch 23f
If is not ON, the process proceeds to step 6. In step 6, it is determined whether or not the automatic memory switch of the reception history is turned on. If it is turned on, the process proceeds to step 5, and if not, the process is terminated.

On the other hand, if it is determined in step 1 that it is not during the time of outputting the radio sound, the process proceeds to step 7. In step 7, it is determined whether or not the back reception selection switch 23e is turned on. If it is turned on, the process proceeds to step 8, and if it is determined that it is not turned on, the process is terminated. In step 8, it is determined whether or not RBDS data is being received behind the scenes.
If the RBDS data is under reception, the process proceeds to step 9a. If the RBDS data is not under the reception in step 8, this process is repeated until the RBDS data is received.

In step 9a, the RBDS data received back and the RT received back included in the RBDS data are captured, and the flow advances to step 9b. Then, in step 9b, the navigation system 1 is sent from the microcomputer 6a.
1, the navigation system 11 transmits a time information read request signal to the navigation system 11, and upon receiving the request signal, the navigation system 11 transmits the time information to the microcomputer 6a.
The microcomputer 6a takes in the time information.

At step 10, the RT (character information) captured by the back reception is subjected to a marking process for distinguishing from the RT (character information) not received at the back, and the process proceeds to step 5.

The search and display processing performed by the microcomputer 6a is performed based on information stored in the database memory 7a in substantially the same manner as the flowchart showing the search and display processing shown in FIG. be able to.

According to the RBDS receiver according to the embodiment (2), time information is fetched from the navigation system 11, and the time information and the received RT (character information) are received.
Are stored in the database memory 7a as a pair, so that the time information in the navigation system 11 is utilized, and the data base of the character information to which the management information related to the character information is added. Construction becomes possible.

Further, by the search processing performed by the microcomputer 6a, the character information corresponding to the search condition including the character information and / or the time information input on the search condition input screen switched by operating the search condition input switch 23b is stored in the database. The information stored in the memory 7a is detected from the information, and the information including the first n characters of the corresponding character information and the time information are displayed in a list on the LCD display unit 22 constituting the display unit 9 line by line. Therefore, necessary character information can be effectively narrowed down from many character information. Furthermore, desired character information can be easily selected from the narrowed-down information by operating the four-direction designation switch 24 provided on the front panel 21 constituting the operation unit 8, and the confirmation key-2.
By performing the operation 5, the contents of the desired character information can be easily displayed in detail from the list, the efficient search can be performed to obtain the desired character information, and the search time can be reduced.

In addition to the navigation system, the time information is taken into the microcomputer 6a from a timepiece mounted on the vehicle, in addition to the navigation system. The same effect as in the case of the RBDS receiver according to (1) can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram schematically showing a main part of an RBDS receiver according to Embodiment (1) of the present invention.

FIG. 2 is a data diagram of an RBDS receiver according to Embodiment (1).
FIG. 3 is a diagram showing a storage state of a database.

FIG. 3 is a front view showing an example of a configuration of a display unit of the RBDS receiver according to Embodiment (1).

FIG. 4 is a flowchart showing an operation of storing received information by a microcomputer in the RBDS receiver according to the embodiment (1).

FIG. 5 is a flowchart showing a search display processing operation performed by a microcomputer in the RBDS receiver according to the embodiment (1).

FIG. 6 is a diagram showing an example of a display state of a search condition input screen after operating a search condition input switch in the RBDS receiver according to Embodiment (1).

FIG. 7 is a diagram showing an example of a display state of a search list display screen after a search condition input is determined in the RBDS receiver according to Embodiment (1).

FIG. 8 is a diagram showing an example of a full-text display screen in which a desired line is selected and confirmed on the search list display screen in the RBDS receiver according to Embodiment (1).

FIG. 9 is a diagram showing an example of a display state of a memory list display screen after operating a list display switch in the RBDS receiver according to Embodiment (1).

FIG. 10 is a diagram showing an example of a display state of a back reception list display screen after operating a back reception list display switch in the RBDS receiver according to Embodiment (1).

FIG. 11 is a block diagram schematically showing a main part of an RBDS receiver according to Embodiment (2) of the present invention.

FIG. 12 is a flowchart showing a storage information storing operation performed by a microcomputer in the RBDS receiver according to the embodiment (2).

[Explanation of symbols]

 2 Receiving circuit 4 RBDS decoder 6, 6a Microcomputer 7, 7a Database memory 8 Operation unit 9 Display unit 11 Navigation system 23b Search condition input switch 23c List display switch 23d Back reception list display switch 23e Back reception selection Switch 23f Memory switch 24 4-way designation switch 25 Enter key

Claims (15)

[Claims] 1. A multiplex broadcast receiver for receiving a broadcast wave including text information superimposed on audio information, a time information fetching means for fetching time information, and a text information included in the broadcast radio wave. Character information fetching means; first storage means for storing the character information fetched by the character information fetching means and time information when the character information was fetched in pairs; First search means for searching for desired information from the information stored in the means, wherein the first search means includes search condition input means for inputting search conditions; Detecting means for detecting, from among the information stored in the storage means, the character information corresponding to the condition input through the search condition inputting means, the character information detected by the detecting means; Based on time information First list display means for displaying a list in a list, first selection means for selecting desired character information from a list displayed by the first list display means, and first selection means And a first display unit for displaying in detail the content of the character information selected via the multiplex broadcast receiver. 2. The multiplex broadcast receiver according to claim 1, wherein the time information fetched by said time information fetching means uses a date and time code received and fetched from broadcast radio waves. 3. The multiplex broadcast receiver according to claim 1, wherein time information in a navigation system is used as time information fetched by said time information fetching means. 4. The multiplex broadcast receiver according to claim 1, wherein the time information fetched by said time information fetching means uses time information of a clock mounted on a vehicle. 5. A multiplex broadcast receiver for receiving a broadcast wave including text information superimposed on audio information, a time information fetching means for fetching time information, and a text information included in the broadcast radio wave. Character information capturing means, and second storage means for storing the character information captured by the character information capturing means, time information when the character information is captured, and a reception frequency of the character information in association with each other. A multiplex broadcast receiver comprising: 6. The multiplex broadcast receiver according to claim 5, further comprising second search means for searching for desired information from the information stored in said second storage means. . 7. A list display selecting means for selecting a list display, wherein the second search means stores the list in the second storage means when the list display is selected via the list display selecting means. The obtained character information,
Second list display means for displaying a list based on the time information and / or the reception frequency; and selecting desired character information from a list displayed by the second list display means. 7. The apparatus according to claim 6, further comprising: a second selecting means, and a second displaying means for displaying the contents of the character information selected via the second selecting means in detail. Multiplex broadcast receiver. 8. A search condition input means for inputting a search condition, wherein the second search means inputs information from the information stored in the second storage means via the search condition input means. Detecting means for detecting character information corresponding to the retrieved search condition; and a third list for displaying the character information detected by the detecting means in a list based on the time information and / or the reception frequency. Display means; third selection means for selecting desired character information from the list displayed by the third list display means; and character information selected via the third selection means 7. The multiplex broadcast receiver according to claim 6, further comprising third display means for displaying details of the multiplex broadcast. 9. The search condition input means is capable of inputting any one of information on character information, time information and reception frequency or a combination of these information as a condition. Multiplex broadcast receiver. 10. The time information fetched by said time information fetch means uses a date and time code received and fetched from a broadcast wave. A multiplex broadcast receiver according to claim 1. 11. The multiplex broadcast according to claim 5, wherein time information in a navigation system is used as time information fetched by said time information fetching means. Receiving machine. 12. The apparatus according to claim 5, wherein the time information fetched by the time information fetching means uses time information of a clock mounted on a vehicle. Multiplex receiver. 13. A back-reception selecting means for selecting whether or not to receive a broadcast radio wave at a time other than when outputting a radio sound, and when the back-reception is selected via the back-reception selecting means,
Marking processing means for performing a marking process for back reception identification on the back-received character information; and back reception storage means for storing the back-received character information identified by the marking processing means. The multiplex broadcast receiver according to any one of claims 1 to 12, wherein the multiplex broadcast receiver is provided. 14. The multiplex broadcast receiver according to claim 13, further comprising back reception priority display means for preferentially displaying a list of said character information stored in said back reception storage means. 15. The multiplex broadcast receiver according to claim 1, wherein said multiplex broadcast receiver is an RBDS receiver.