Method of audio-video synchronization

Details Method of audio-video synchronization Method of audio-video synchronization

2004-06-09

2008-12-30

Yenke, Brian P (Department: 2622)

Television

Synchronization

Locking of video or audio to reference timebase

C348S512000, C348S516000

Reexamination Certificate

active

07471337

ABSTRACT:
A method for synchronization of an audio stream and a video stream comprising the steps of (A) determining a first presentation time stamp from the video stream and generating a first handshake signal when the video stream is ready to be transmitted, (B) repeating and dropping one or more audio frames of the audio stream in response to the first handshake signal and a plurality of first predetermined threshold values until a second presentation time stamp from the audio stream matches the first presentation time stamp and generating a second handshake signal when the audio stream is ready to be transmitted and (C) transmitting the video stream and the audio stream in response to the second handshake signal.

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