Apparatus for extending and reproducing video and audio data and

Details Apparatus for extending and reproducing video and audio data and Apparatus for extending and reproducing video and audio data and

1996-05-31

1998-09-15

Lee, Eddie C.

Optics: motion pictures

With sound accompaniment

Picture and sound synchronizing

352 20, 345515, G03B 3100

Patent

active

058087222

ABSTRACT:
A motion-pictures and audio synchronization controller for extending and reproducing compressed motion-pictures and audio multiplexed data and outputting motion-pictures synchronously with audio comprises a selector for adjusting time between a system clock reference added to compressed motion-pictures and audio multiplexed data and picture time stamp, a system time counter for generating a system time clock output from an output of the time adjustment selector and a picture frame synchronization signal, an audio synchronization comparator for comparing a system time clock output from the system time counter with a delayed audio time stamp and outputting an audio output start signal, and a picture synchronization comparator for comparing the system time clock output from the system time counter with a delayed picture time stamp and outputting a picture output start signal. The motion-pictures and audio synchronization controller synchronizes the audio output with the motion-picture output by the audio output start signal and the picture output start signal.

REFERENCES:
patent: 3944348 (1976-03-01), Freudenschuss
patent: 4461552 (1984-07-01), Levine
patent: 4832481 (1989-05-01), Beauviala
patent: 5521922 (1996-05-01), Fujinami et al.
patent: 5535137 (1996-07-01), Rosemere et al.
patent: 5537148 (1996-07-01), Fujinami

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