发明授权
- 专利标题: Method and device for automatically compensating a phase shift on a synchronisation signal received by an item of remote equipment
- 专利标题(中): 用于自动补偿由远程设备项目接收的同步信号上的相移的方法和装置
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申请号: US12733515申请日: 2008-09-05
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公开(公告)号: US08223805B2公开(公告)日: 2012-07-17
- 发明人: Thierry Tapie , Serge Defrance , Luis Montalvo
- 申请人: Thierry Tapie , Serge Defrance , Luis Montalvo
- 申请人地址: FR Issy les-Moulineaux
- 专利权人: Thomson Licensing
- 当前专利权人: Thomson Licensing
- 当前专利权人地址: FR Issy les-Moulineaux
- 代理商 Robert D. Shedd; Jeffrey M. Navon
- 优先权: FR0757424 20070907
- 国际申请: PCT/EP2008/061761 WO 20080905
- 国际公布: WO2009/030741 WO 20090312
- 主分类号: H04J3/06
- IPC分类号: H04J3/06
摘要:
The present invention relates to the domain of video equipment. In particular, the invention relates to a device able to receive packets in a network. The device comprises: means for receiving packets containing samples realized at a period, means for regenerating a ramp by means of a loop that delivers a clock, means for initializing, at every zero-crossing of the ramp, a counter whose rhythm is determined by the clock, means for generating image cues at every zero-crossing of the counter, and means for reconstituting a synchronization signal from said image cues, means for transmitting the synchronization signal to an item of remote equipment to be synchronized. According to the invention, the device comprises: means for receiving a return synchronization signal identical to the synchronization signal received by the equipment, means for extracting return image cues from the return synchronization signal, means for transmitting, to the loop, a sum between a sample and a sample of a signal delivered by the image counter, the samples having been realized at a rate set by the return image cues.
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