Patent ID: 8111327
Filing Date: 2012-02-07
Classification: G11B,H04N

Abstract:
1. An audio/video synchronization method, comprising: receiving a video signal and an audio signal from a receiving end; setting at least one dynamic synchronization checkpoint according to the video signal on a playback sample number axis of the video signal; calculating an expected value of playback sample number of the audio signal at the dynamic synchronization checkpoint; detecting an actual value of playback sample number of the audio signal at the dynamic synchronization checkpoint; and calculating a difference between the expected value and the actual value; the audio signal and the video signal being synchronized when the difference is between an upper error limit and a lower error limit, and the audio signal and the video signal not being synchronized when the difference is greater than the upper error limit; and the audio signal and the video signal not being synchronized when the difference is smaller than the lower error limit; and adjusting the video signal when the audio signal and the video signal are not synchronized.