发明名称 Method and apparatus for lipsync measurement and correction
摘要 A method and apparatus for synchronizing audio and video portions of a media program signal is disclosed. The method comprises the steps of detecting an audio event in the audio portion of the media program signal, measuring the timing interval from the audio event to a subsequent video synchronization pulse in the video portion of the media program signal, and storing the timing interval in a third portion of the media program signal. The apparatus comprises a voice detector for detecting an audio event in the audio portion of the media program signal, a timer for measuring the timing interval from the audio event to a subsequent video synchronization pulse in the video portion of the media program signal, and a processor for storing the timing interval in a third portion of the media program signal.
申请公布号 US7212248(B2) 申请公布日期 2007.05.01
申请号 US20030654836 申请日期 2003.09.04
申请人 THE DIRECTV GROUP, INC. 发明人 STANGER LEON J.
分类号 H04N5/91;H04N5/00;H04N5/04;H04N9/75 主分类号 H04N5/91
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