Invention Application
US20050021811A1 Process and device for synchronizing presentation of audio and/or video frames
有权
用于同步音频和/或视频帧的呈现的过程和设备
- Patent Title: Process and device for synchronizing presentation of audio and/or video frames
- Patent Title (中): 用于同步音频和/或视频帧的呈现的过程和设备
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Application No.: US10741424Application Date: 2003-12-19
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Publication No.: US20050021811A1Publication Date: 2005-01-27
- Inventor: Frederic Roelens
- Applicant: Frederic Roelens
- Applicant Address: FR MONTROUGE
- Assignee: STMICROELECTRONICS SA
- Current Assignee: STMICROELECTRONICS SA
- Current Assignee Address: FR MONTROUGE
- Priority: FR02-16329 20021220
- Main IPC: H04N5/93
- IPC: H04N5/93 ; G11B20/10 ; G11B27/10 ; H04N7/52 ; G06F15/16

Abstract:
A method and device are provided for synchronizing the presentation of audio frames and/or of video frames comprises the detection of presentation time stamps in a stream of frames. The presentation instant indicated by a time stamp is compared with a time delivered by a local reference clock. Depending on a variance and on an average of values of deviation between presentation instants and corresponding times indicated by the clock, the clock can be initialized according to the presentation instant indicated by a time stamp or the presentation of the frames can be adjusted.
Public/Granted literature
- US07280156B2 Process and device for synchronizing presentation of audio and/or video frames Public/Granted day:2007-10-09
Information query