JPH1040665A - Tape cassette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To determine the absolute position of a tape and to perform quick program searching by recording serial numbers on a tape surface, for example at specified intervals, in a magnetic tape beforehand. SOLUTION: In a tape cassette 1, counter values, for example from 00001 to 99999, are printed on the surface of a magnetic tape 2. When this tape cassette 1 is set in a tape deck device 3, the magnetic tape 2 is stuck to a magnetic head 4. At this time, a reading section is brought close to the magnetic tape 2 and, during the traveling of the magnetic tape 2 wound on the magnetic head 4, the printed counter values are read in the order of 00001, 00002 and 00003. The tape deck device 3 displays the counter value 00003 read last on a display section 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette, and more particularly to a tape cassette suitable for audio and video tapes and an apparatus for recording and reproducing the tape.

[0002]

2. Description of the Related Art As a tape cassette of this type, for example, Japanese Utility Model Laid-Open Publication No. 57-91189 has a built-in counter that counts in conjunction with the rotation of a tape winding shaft to facilitate tape cueing. Further, a configuration of a tape cassette capable of accurately displaying the remaining amount of tape has been proposed.

[0003]

A tape deck device having a built-in counter for positioning a tape cassette has been conventionally manufactured and sold. However, since this counter is provided on the tape deck device side, the counter value is as follows. Does not represent the absolute value of the position of the tape cassette. For this reason, if the tape is replaced with another tape and playback is performed, the counter value changes, and a correct counter value indicating the position of the tape cannot be obtained.

For this reason, as described in Japanese Utility Model Laid-Open No. 57-91189, a tape cassette having a built-in counter on the tape cassette side has been proposed. Since the mechanism must be incorporated, there is a problem that the structure of the tape cassette is complicated.

The reason is that it is necessary to provide an interlocking device between the rotating shaft of the tape cassette and the counter, the incorporation of the counter, and the display window of the counter on the tape cassette side.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in view of the above circumstances, and has as its object to provide an absolute counter indicating the position of a tape cassette, whereby fast forward and rewind can be controlled by the counter value. An object of the present invention is to provide a tape cassette and a recording / reproducing apparatus for the tape cassette.

[0007]

To achieve the above object, a tape cassette according to the present invention is characterized in that it has a magnetic tape on which counter information indicating the position of the magnetic tape is recorded in advance.

Further, the tape recording / reproducing apparatus of the present invention has a means for reading and displaying a counter value recorded on a magnetic tape of a tape cassette having a magnetic tape on which counter information indicating a position is recorded in advance. It is characterized by.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below. In a preferred embodiment of the present invention, in the tape cassette, serial numbers are recorded in advance on the tape surface at regular intervals, for example. Then, the counter reading unit of the tape deck device reads the serial number of the magnetic tape and displays it as a counter value on the display unit.

Embodiments of the present invention will be described in more detail with reference to the drawings.

FIG. 1 is an exploded perspective view showing the configuration of the embodiment of the present invention. Referring to FIG. 1, a tape cassette 1 contains a magnetic tape 2 therein, and a serial number is recorded on the magnetic tape 2 in advance by, for example, printing at a constant interval.

The tape deck device 3 includes a magnetic head 4 for recording and reading magnetism on a magnetic tape, a reading unit 5 for reading serial numbers recorded on the magnetic tape 2, and a display for displaying a counter value read by the reading unit 5. Unit 6.

Next, the operation of the embodiment of the present invention will be described with reference to FIG.

The tape cassette 1 includes a tape deck device 3
When reading or recording, the magnetic tape 2 is wound around the magnetic head 4, and when the magnetic tape 2 travels, the reading unit 5 reads the counter information recorded on the magnetic tape 2, and reads the information. 3 is displayed on the display unit 6.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to more specifically describe the above-described embodiment of the present invention, an embodiment of a tape cassette according to the present invention will be described below.

The tape cassette 1 shown in FIG.
As shown in FIG.
Thus, the counter value of "99999" is printed on the tape surface. This counter value is printed with a printing material that does not impair the magnetic properties.

The reading unit 5 of the tape deck device 3
When the tape cassette 1 is set, the magnetic tape 2
The tape is arranged so as to be close to the tape surface, and is separated from the tape surface at the time of ejection.

Next, the operation of one embodiment of the present invention will be described.

When the tape cassette 1 is set in the tape deck device 3, the magnetic tape 2 is wound around the magnetic head 4. At this time, the reading unit 5 approaches the magnetic tape 2 and sets the printed counter to “00001” when the magnetic tape 2 runs while being wound around the magnetic head 4.
"00002" and "00003" are sequentially read.

The tape deck device 3 displays on the display section 6 the counter value "00003" read last from this counter.

The tape deck device 3 also displays the read counter value on the display unit 6 when the tape runs, such as during recording, playback, fast forward, and rewind.

In the embodiment of the present invention, the counter value is described as a five-digit numerical value. However, a bar code or the like may be used. Further, the number of digits may be further increased. The reading unit 5 is constituted by an optical reading device such as a CCD camera, and recognizes an image using a video signal as an image signal, recognizes a counter value, and displays the counter value on the display unit 6. At this time, the counter value at the first position during the tape running is recognized, and this counter value is loaded into a counter (not shown) provided in the tape deck device 3, and the subsequent counter value is determined according to the running direction of the tape. At the time of detection, the tape deck device 3
May be configured to count up / down from the loaded value.

In the embodiments of the present invention, numbers have been described as serial numbers of magnetic tapes by way of example. However, physical numbers and codes need not necessarily be printed. For example, optical recording using a watermark or a hole on the tape surface may be used.

The serial number may be recorded on the back side of the tape instead of the front side. The reason is that the counter value can be read by changing the position of the reading unit. Although the example of the arrangement of the serial numbers is described at regular intervals, the serial numbers may be arranged so as to indicate a position corresponding to the recording / playback time.

Since the serial number of the tape is not always erased but only needs to be read by the reading unit 5, the serial number may be magnetically recorded on a portion which is not demagnetized by the magnetic head 4.

[0026]

As described above, according to the present invention,
By using the counter of the tape cassette for positioning the tape, it is possible to determine the absolute position of the tape and to quickly perform cueing and the like.

The reason is that, in the present invention, if the user remembers the counter of the tape cassette at the time of recording at the time of recording, after using the tape, the user can look at the counter displayed by setting the tape cassette on the tape deck. For example, positioning can be quickly performed by fast-forwarding and rewinding from the magnitude of the counter value.

[Brief description of the drawings]

FIG. 1 is a view for explaining an embodiment of the present invention, and is an exploded perspective view showing a state where a tape cassette is set in a tape deck device.

FIG. 2 is a diagram for explaining one embodiment of the present invention;
It is a figure which shows the magnetic tape provided with the serial number.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tape cassette 2 Magnetic tape 3 Tape deck device 4 Magnetic head 5 Reading part 6 Display part

Claims (3)

[Claims] 1. A tape cassette comprising a magnetic tape in which counter information indicating the position of the magnetic tape is recorded in advance. 2. A tape recording and reproducing apparatus comprising: means for reading and displaying a counter value recorded on a magnetic tape of a tape cassette having a magnetic tape on which counter information indicating a position is recorded in advance. 3. A tape cassette wherein serial number information indicating an absolute position of a magnetic tape is stored on a tape surface of the magnetic tape at predetermined intervals in a tape running direction.