JPH0258718B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a recording medium reproducing apparatus equipped with a display section that numerically indicates the position of a recording medium.

In a recording medium playback device such as a tape recorder that uses magnetic tape or the like as a recording medium, when a plurality of signals such as music are discontinuously recorded (recorded) on the recording medium (hereinafter referred to as the medium), the above-mentioned It has a so-called inter-song search function that searches the recorded and unrecorded parts of multiple signals by playing the medium to find the starting position of the desired signal. Some devices are equipped with a tape counter as shown below.

When searching for an interval between one or more songs on such a playback device, for example, when performing so-called skip selection, such as searching for an interval between the 5th song, it is necessary to search for an interval other than the desired one (in this case, up to the 4th song) during song selection. Even when the tape counter is searched for, it is difficult to read the tape counter display because the counter numbers pass quickly through these inter-track positions. In other words, since the tape counter and the above-mentioned inter-track signal are independent and configured in separate systems, it is impossible to visually confirm the recording position, that is, the counter display for each track interval, when searching for recorded contents on a medium. It had some drawbacks.

The present invention has been made to eliminate the above-mentioned drawbacks, and even if an undesired track interval is found, the position of that track interval is displayed numerically on the tape counter until the next track interval is found. The object of the present invention is to provide a recording medium playback device configured as described above.

Embodiments of the present invention will be described below with reference to the drawings.
The figure is a schematic diagram showing a recording medium reproducing apparatus according to an embodiment of the present invention, in which 1 is a tape drive section that includes a tape 2, a supply reel 3, and a take-up reel 4;
is a tape position detection section, which counts the signal generated by the slit plate 8 (provided on the stand of the take-up reel 4) that blocks the optical path between the lamp 6 and the photoelectric element 7; It includes a counter circuit 9 for. The signals counted by the counter circuit 9 are continuously detected so as to indicate a numerical value corresponding to the position of the tape 2. 10
is the tape boundary detection unit that moves from tape 2 to magnetic head 1.
1 includes a determination circuit 12 for determining whether or not it is an inter-track portion (boundary portion) based on the magnitude of the reproduced signal detected by No. 1. Reference numeral 13 denotes a signal holding section which includes a latch circuit 14 and which is connected to the tape position detecting section 5.
and a signal from the tape boundary detection section 10 are added, and the holding state of the former signal is controlled by the latter signal. Reference numeral 15 denotes a display section, which includes a display circuit 16 and functions as a tape counter that numerically indicates the position of the tape in accordance with the signal from the tape position detection section 5.

In the above configuration, when the tape 2 is played back by the tape drive section 1, the tape position detection section 5
A signal indicating a numerical value corresponding to a position on the tape 2 is continuously detected and added to the signal holding section 13. Whether or not this signal is immediately output from the signal holding section 13 to the display section 15 is determined by the signal from the tape boundary determining section 10. When the tape boundary determining section 10 determines that there is an inter-track portion of the tape 2, the tape boundary determining section 10 sends an inter-track signal [L level] to the signal holding section 13 to release the latch circuit 14 from the latched state. signal or H-level signal] is applied, the signal from the tape position detection unit 5 that was previously held in the signal holding unit 13 is released from the holding state at this moment, and the signal at this moment is output to the display unit 15. be done.
Therefore, the display section 15 (tape counter) displays a numerical value corresponding to the position of the tape at this moment.

After the inter-song signal disappears, until the next inter-song signal is determined in the tape boundary determination section 10,
The signal from the tape position detection section 5 is held in the signal holding section 13 again.

Therefore, the numerical value indicating the position of the tape when the inter-song signal is applied is displayed as is on the display section 15. In other words, the numerical value indicating the position of the previous inter-song signal (inter-song part) is fixed and displayed on the display unit 15 until the next inter-song signal is determined. It is possible to determine which side the tape 2 is running on.

The tape position detection section 5 may be replaced by a linear counter proportional to the running distance of the tape 2. For example, by rotating the slit plate 8 with a roller rotated by the running tape, the running amount of the tape can be made proportional to the number of rotations of the slit plate 8.

As is clear from the above description, according to the present invention, even if a song gap other than the desired song gap is found, the song gap position is displayed as a numerical value on the tape counter until the next song gap is found. Since it is possible to visually check the recording position of a medium such as a tape, it is possible to easily find the starting position of a desired recording signal.

The present invention makes it possible to realize a compact and high-performance playback device by using a microcomputer.

Furthermore, the present invention is not limited to the tape recorder shown in the embodiments, but can be applied to other recording medium reproducing devices such as film transport devices and record playing devices.

[Brief explanation of drawings]

The figure is a schematic diagram showing an embodiment of the present invention. 5... Tape position detection section, 10... Tape boundary determination section, 13... Signal holding section, 14... Latch circuit, 15
...Display section.

Claims (1)

[Scope of Claims] 1. A medium position detection unit for continuously detecting a signal indicating a numerical value corresponding to the position of the medium, a medium boundary determination unit for determining a recording boundary portion of the medium, and a medium position detection unit for determining a recording boundary portion of the medium; The display section includes a signal holding section to which signals are applied from the detection section and the medium boundary determination section, and a display section that numerically indicates the position of the medium according to the signal detected by the medium position detection section. 1. A recording medium reproducing device characterized in that a signal from a medium position detecting section is held after a specific signal is applied from a boundary determining section until a next specific signal is applied. 2. The recording medium reproducing apparatus according to claim 1, wherein the medium position detection section includes a counter circuit. 3. The recording medium reproducing apparatus according to claim 1 or 2, wherein the signal holding section includes a latch circuit. 4. The recording according to any one of claims 1 to 3, wherein the specific signal is a signal that releases the holding state of the signal from the medium position detection section in the signal holding section. Media playback device.