Track judgement apparatus for discriminating between video and o

Details Track judgement apparatus for discriminating between video and o Track judgement apparatus for discriminating between video and o

1994-03-15

1996-11-26

Tran, Thai Q.

Motion video signal processing for recording or reproducing

Local trick play processing

With randomly accessible medium

386 46, H04N 576

Patent

active

055791239

ABSTRACT:
In a system for reproducing signals which may be video or audio, the reproduced signal is judged to be an audio signal if signals corresponding to sync signals occur at a rate frequency greater than once per field interval. In one embodiment, the track judgment system counts the output signals generated from a signal separating circuit during reproduction. The track judgment system also monitors the output of a pulse generator (PG) detector during reproduction. The outputs from the signal separating circuit and the PG detector are logically evaluated to determine the type of signal being reproduced.

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