Apparatus for selectively recording and/or reproducing a video s

Details Apparatus for selectively recording and/or reproducing a video s Apparatus for selectively recording and/or reproducing a video s

1989-09-18

1994-08-09

Psitos, Aristotelis

Dynamic magnetic information storage or retrieval

Record editing

360 61, 360 25, G11B 502, G11B 1512

Patent

active

053371933

ABSTRACT:
A VTR has heads adapted for reading out a video signal, a PCM audio signal, and an FM audio signal, respectively, from a magnetic tape, and a signal detecting circuit operable to detect which of the video, PCM and FM signals are recorded on the magnetic tape and to provide a signal indicative thereof to a system control circuit which controls a switching circuit for selectively connecting FM and PCM audio demodulating circuits with a signal output line, so that the video signal and the PCM audio signal or the video signal and the FM audio signal are output to be reproduced. The VTR further includes a recording system adapted to record a video signal, a PCM audio signal, and an FM audio signal in respective magnetic layers of a magnetic tape which are at different depths relative to the surface of the magnetic tape in accordance with a predetermined recording current relationship used for recording the video, FM audio and PCM audio signals so as to improve the S/N ratio of each signal when reproduced.

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