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:
Aug. 20, 2013
Filed:
Feb. 10, 2012
Shinya Murakami, Kyoto, JP;
Ryogo Yanagisawa, Osaka, JP;
Syuji Kato, Osaka, JP;
Toru Iwata, Osaka, JP;
Shinya Murakami, Kyoto, JP;
Ryogo Yanagisawa, Osaka, JP;
Syuji Kato, Osaka, JP;
Toru Iwata, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An input processing circuit decodes a digital video signal selected by an input signal selector. Decryption circuits each decrypt the encryption of a video signal output from the input processing circuit, and generate an authentication key of the encryption. A video signal selector selects and outputs one of the video signals output from the decryption circuits, to a monitor. The decryption circuits each include a pseudo-signal generation circuit which extracts information from the video signal, and based on the extracted information, generates a pseudo-video signal.