Patent ID: 6912011
Filing Date: 2005-06-28
Classification: H04N

Abstract:
1. A method for measuring audio and video synchronization error of an audio/video encoder system, said method comprising steps of: (a) producing a reference video data having a first time length and including a particular image pattern, and a reference audio data having a second time length; (b) inputting said reference video data and said reference audio data into said audio/video encoder system to produce an encoded video data and an encoded audio data; (c) processing said encoded video data and said encoded audio data respectively to produce a detected video data having said first time length and including said particular image pattern, and a detected audio data having said second time length; and (d) detecting a first time point of an audio data of said reference audio data synchronized with said particular image pattern of said reference video data and a second time point of an audio data of said detected audio data synchronized with said particular image pattern of said detected video data by an analyzing tool, and calculating a difference between said first time point and said second time point.