G - Physics – 11 – B
Patent
G - Physics
11
B
352/21.22, 352/1
G11B 27/02 (2006.01) H04N 5/783 (2006.01) H04N 5/93 (2006.01)
Patent
CA 1170358
ABSTRACT OF THE DISCLOSURE A reproducing system for carrying out a slow motion or still picture reproduction comprises a tape on which a video signal is recorded along video tracks, which extend obliquely with respect to the longitudinal direction of the tape, and a control signal recorded along a control track ex- tending in the longitudinal direction of the tape, where the video tracks are recorded by a plurality of rotary video heads having gaps with mutually different azimuth angles, and the control signal is recorded along the control track inter- relatedly with the recording of the video tracks by the video heads,a tape driving or stopping circuit comprising a capstan rotated by a motor for driving the tape or for stopping the tape,a reproducing circuit including a plurality of rotary video heads for successively scanning the recorded video track to pick up and reproduce the recorded video signal, where the rotary video heads have gaps with mutually different azimuth angles that are respectively the same as the first mentioned azimuth angles, a circuit for reproducing the con- trol signal from the control track while the driven tape is moving by use of a control head, where the control head is provided at a position deviated by a distance corresponding to a varying length which is approximately equal to one-half the maximum varying length upon adjustment of the tape stop- ping position from a regular position, and the regular posi- tion is a position where the tape moves due to inertia to stop at a most suitable position, by detecting the control signal by use of the control head and immediately performing a stopping operation to stop the movement of the tape by the tape driving or stopping circuit, and a circuit for stopping the movement of the tape by the tape driving or stopping cir- cuit by use of a signal obtained by delaying the reproduced control signal by a predetermined delay time, wherein the pre- determined delay time is a delay time variably adjusted with respect to a delay time corresponding the varying length which is approximately equal to one-half the maximum varying length upon adjustment of the tape stopping position, and the tape is stopped at a relative position with respect to the video head so that the point in time when the level of the repro- duced video signal becomes minimum is within the vertical blanking period of the video signal or in the vicinity thereof upon reproduction performed by the video head.
378346
Marks & Clerk
Victor Company Of Japan Ltd.
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