The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2005
Filed:
Aug. 22, 2001
Akira Ogino, Tokyo, JP;
Nozomu Ikeda, Tokyo, JP;
Yuji Kimura, Kanagawa, JP;
Hisayoshi Moriwaki, Tokyo, JP;
Takashi Kohashi, Tokyo, JP;
Akira Ogino, Tokyo, JP;
Nozomu Ikeda, Tokyo, JP;
Yuji Kimura, Kanagawa, JP;
Hisayoshi Moriwaki, Tokyo, JP;
Takashi Kohashi, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
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.