Data encoding method and apparatus for outputting encoded data a

Details Data encoding method and apparatus for outputting encoded data a Data encoding method and apparatus for outputting encoded data a

1997-01-29

2000-07-11

Peng, John K.

Television

Synchronization

Locking of video or audio to reference timebase

348512, 348518, 348500, 348423, 348568, 348845, 370509, H04N 712

Patent

active

060880635

ABSTRACT:
There occurs an output timing lag between audio and video, for example, in case of building a system. Excessive frame skipping, etc. occurs. Prior to comparing a PTS and an SCR of MPEG within an apparatus, an offset value is added to the value of PTS. A minus offset value is used for a fast decode process. Offset values are written into an audio offset value register etc. by a host CPU. A value obtained by adding PTS and an offset value and an internal clock SSC depending on an SCR are compared by an adder-subtracter. If comparison shows the decode process is still fast, a decision controller instructs, for example, display of the same frame twice.

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