发明授权
- 专利标题： Method and device of superimposing an additional information signal on a video signal and detecting said additional information from said video signal
- 专利标题（中）： 在视频信号上叠加附加信息信号并从所述视频信号检测所述附加信息的方法和装置
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申请号： US09934621申请日： 2001-08-22
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公开(公告)号： US06954472B2公开(公告)日： 2005-10-11
- 发明人: Akira Ogino , Nozomu Ikeda , Yuji Kimura , Hisayoshi Moriwaki , Takashi Kohashi
- 申请人： Akira Ogino , Nozomu Ikeda , Yuji Kimura , Hisayoshi Moriwaki , Takashi Kohashi
- 申请人地址： JP Tokyo
- 专利权人： Sony Corporation
- 当前专利权人： Sony Corporation
- 当前专利权人地址： JP Tokyo
- 代理商 Jay H. Maioli
- 优先权： JPP9-237277 19970902
- 主分类号： H04N7/08
- IPC分类号： H04N7/08 ; G06F21/10 ; H04B1/707 ; H04J3/12 ; H04J13/00 ; H04N7/081
摘要：
A method of superimposing additional information on a video signal, transmitting it, and detecting the additional information from the transmitted video signal. The additional information is synchronized with a sync signal in the video signal, and generated in N (N≧1) unit intervals of one field of the video signal. Some predetermined unit intervals of the additional information generated in N (N≧1) unit intervals of one field of the video signal, are phase-inverted. The additional information is identified by detecting the information in unit intervals based on the sync signal in the video signal, and detecting that information in some predetermined unit intervals is inverted. The additional information is identified by detecting the information in unit intervals, and integrating the detection results with the information in inverted predetermined unit intervals inverted.