Method and apparatus for audio and video synchronizing in MPEG p

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348423, 348512, 348515, H04N 712

Patent

active

055983529

ABSTRACT:
A multimedia system including an audio/video decoder/decompresser for decoding/decompressing a compressed encoded audio/video data stream to generate video images for display and audio signals for audible reproduction. The multimedia system includes an integrated system and video decoder with an audio/video synchronization circuit for substantially synchronizing the display of video images with audio playback. An audio presentation time stamp (APTS) is detected in the compressed/coded audio data stream in the integrated system and video decoder and stored in a data latch. The compressed/coded audio data stream is fed to an audio decoder which decodes/decompresses the audio data and outputs and audio signal. The audio decoder detects when audio data corresponding to an APTS had been output and sets a corresponding flag. The flag indicates to the integrated system and video decoder that a corresponding audio segment had been decoded/decompressed and output. The integrated system and video decoder then synchronizes the video output with the audio output by repeating or skipping frames of video data.

REFERENCES:
patent: 4851909 (1989-07-01), Noske et al.
patent: 5121202 (1992-06-01), Tanoi
patent: 5212549 (1993-05-01), Ng et al.
patent: 5276513 (1994-01-01), van der Wal et al.
patent: 5325125 (1994-06-01), Naimpally et al.
patent: 5347322 (1994-09-01), Levine et al.
patent: 5351092 (1994-09-01), Poimboeuf et al.
patent: 5379356 (1995-01-01), Purcell et al.
patent: 5381181 (1995-01-01), Deiss
patent: 5387940 (1995-02-01), Kwok et al.
patent: 5396497 (1995-03-01), Veltman
patent: 5430485 (1995-07-01), Lankford et al.
patent: 5467139 (1995-11-01), Lankford
patent: 5486864 (1996-01-01), Zdepski
Dave Bursky, "Improved DSP ICs Eye New Horizons," Electronic Design, vol. 41, No. 23. pp. 80-82.
Dave Bursky, "Codec Compresses Images in Real Time," Electronic Design, vol. 41, No. 20, pp. 123-124.
Naohisa Ohta, Packet Video, pub. by Artech House, pp. 137-138.

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