JPS62277648A - Program searching method for magnetic recording and reproducing device or the like - Google Patents

Abstract

PURPOSE:To contrive coincidence between the video recording start position and the reproduction start position by detecting the recorded program searching signal by the 2nd program searching head in a fast feeding/rewinding mode and reversing the tape feeding direction after the tape is loaded for detection of the program searching signal through the 1st program searching head. CONSTITUTION:A tape is fast fed and rewound in a stop mode 4 and then stopped when the program searching signal is detected by the 2nd program searching head 6. Then the tape is fed in the reverse direction in a reproduction mode 3 and the fed in the forward direction when the program searching signal is detected by the 1st program searching head 5 for execution of the normal reproduction. Thus the coincidence is secured between the video recording start position and the reproduction start position. In such a way, the program searching signal can be detected by the head 5 and therefore a program searching action is also possible with the fast feeding/rewinding operations in the mode 3. As a result, the tape loading/unloading time can be omitted and the fast program searching operation is possible.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a cueing method for a magnetic recording/reproducing device or the like.

[Conventional technology]

A conventional cueing method of this type will be explained based on the cueing mechanism of a magnetic recording/reproducing apparatus shown in FIG. In the figure, (
1) is a drum that records and plays back video signals on tape, (
2) is a cassette, and (3) is a tape running in playback-recording mode, which has been pulled out from the cassette (2) as shown in the actual recording. (4) is a tape running in the stop, fast forward, and rewind modes, and is located in the cassette (2) as shown by the dashed line. (5) is a magnetic erasing head (hereinafter referred to as the first cue head) provided so as to be in contact with the tape (3), and is also equipped with #> for recording and reproducing cue signals on the tape (3). . (6) is the tape (
4) a detection head (hereinafter referred to as the second detection head) provided in contact with the
The first cue head (5) detects the cue signal recorded by the first cue head (5). (7) is the tape (
3) This is an A/C head installed so as to be in contact with the audio control recording/erasing head for recording and reproducing audio signals and control signals.

Next, the operation will be explained. When recording, the tape is moved from the stop state (4) to the play state (3) and the drum (
1) a video signal is recorded. In this case, a cue signal is recorded by the first cue head (5) for several seconds before the start of recording. When searching for the beginning of a tape recorded in this way, first the tape is stopped (4).
The tape is fast-forwarded and rewinded, and the second cue head (6) detects a cue signal and stops the tape. Next, by playing back from this state, it is possible to play back from the recording start position.

[Problem that the invention seeks to solve]

Since the conventional cueing method is as described above, there is a problem in that the recording start position and the playback start position after cueing are shifted by a dozen or more α.

This invention was made in order to solve the above-mentioned problems, and it is possible to match the recording start position and the playback start position after cueing, and also to adjust the playback state of the tape (
3) It is an object of the present invention to obtain a method for locating the cue of a magnetic recording/reproducing device, etc., which is capable of locating the cue.

[Means for solving problems]

In the cueing method of a magnetic recording/reproducing device or the like according to the present invention, the recording head and the reproducing head for cueing signals are performed by the same first cueing head, and after loading the tape, the tape is run in reverse, so that the first cueing head is The cueing signal is detected by the cueing head.

[Effect]

In this invention, the recording start position and the playback start position are determined by sharing the head for recording and reproducing the cue signal, and by sending the tape in the reverse direction in the playback state (3) and detecting it with the head. It can be matched.

[Embodiments of the invention]

The cueing method of the present invention will be explained based on the cueing mechanism of a conventional magnetic recording/reproducing apparatus shown in FIG.

To cue the beginning of a tape recorded in the same way as before, first perform fast forwarding and rewinding while the tape is stopped (4), and then reach the second cue head (6) when the cue signal is detected. to stop the tape. If you play from the position stopped in this way as usual, the first cue head (5
), the position of the cue signal recorded by the A/C head (7) is almost the same as that of the A/C head (7), and there is a difference of more than ten degrees between the recording start position and the playback start position, so the second cue head (6)
After cueing, the tape is placed in the playback state (3) and sent in the reverse direction, and when the first cue head (5) detects the cue signal, the tape is sent in the forward direction to resume normal playback. Let's do it. In this way, the recording start position and the playback start position can be matched.

As described above, since the first cueing head (5) can detect the cueing signal, cueing can be performed even in fast forwarding or rewinding in the playback state (3), and the loading/unloading time is This allows for quick cueing.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to match the recording start position with the playback start position after cueing, and it is also possible to cue the tape even when the tape is being played back.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing a cueing mechanism of a conventional magnetic recording/reproducing apparatus. In the figure, (1) is a drum, (2) is a cassette, and (5) is a drum.
) is the first cue head, and (6) is the second cue head.

Claims (1)

[Claims] (1) A first cue head that is installed on the tape running system in the recording and playback state and records and reproduces cue signals;
a second cue head that detects a cue signal recorded by the cue head, the second cue head detects the recorded cue signal in a fast forward/rewind state; A cueing method for a magnetic recording/reproducing device, etc., characterized in that after tape loading, the tape is sent in a reverse direction and the first cueing head detects the cueing signal.