PCM audio signal reproducing apparatus

Details PCM audio signal reproducing apparatus PCM audio signal reproducing apparatus

1986-06-18

1988-05-31

Hix, L. T.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358343, 360 191, H04N 979, H04N 578

Patent

active

047485175

ABSTRACT:
In an apparatus for reproducing either a video signal or a PCM (pulse code modulated) audio signal from a record medium, the existence of a PCM audio signal recorded on the record medium is detected in response to an identifying pilot signal recorded together with the PCM audio signal, and, when a video signal is being reproduced, detection of a PCM audio signal is obviated. Thus, even if the identifying pilot signal and a portion of the video signal are superposed upon each other on a frequency axis, erroneous assumption of the presence of a recorded PCM audio signal can be avoided to prevent incorrect reproducing operation.

REFERENCES:
patent: 4542418 (1985-09-01), Yoneyama et al.
patent: 4542419 (1985-09-01), Morio et al.
patent: 4551771 (1985-11-01), Machida et al.

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