Audio frame synchronization for embedded audio demultiplexers

Details Audio frame synchronization for embedded audio demultiplexers Audio frame synchronization for embedded audio demultiplexers

1994-05-25

1996-01-09

Marcelo, Melvin

Multiplex communications

Wide area network

Packet switching

3701051, 348513, 348526, H04J 306, H04N 708

Patent

active

054835380

ABSTRACT:
Audio frame synchronization for embedded audio demultiplexers counts the number of audio samples for each video frame of a digital video signal. The pattern of audio samples per video frame for an audio frame is detected to identify an audio frame boundary, the pattern being a function of the respective video and audio standards for the digital video signal. For example in one embodiment the number of audio samples for consecutive video frames are compared, and when there is equality between consecutive video frames the audio frame boundary is detected.

REFERENCES:
patent: 5351090 (1994-09-01), Nakamura
patent: 5396497 (1995-03-01), Veltman

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