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:
Nov. 27, 2007
Filed:
Jan. 13, 2004
Nakaba Kogure, Zama, JP;
Tomoo Yamakage, Yokohama, JP;
Hidenori Takeshima, Ebina, JP;
Koichi Masukura, Kawasaki, JP;
Taku Kato, Fuchu, JP;
Atsushi Ishihara, Yokohama, JP;
Wataru Asano, Yokohama, JP;
Nakaba Kogure, Zama, JP;
Tomoo Yamakage, Yokohama, JP;
Hidenori Takeshima, Ebina, JP;
Koichi Masukura, Kawasaki, JP;
Taku Kato, Fuchu, JP;
Atsushi Ishihara, Yokohama, JP;
Wataru Asano, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A computer system with a monitor display, comprises a decoder unit configured to decode video data containing digital watermark information to derive decoded data, and configured to determine, based on information included in the video data, whether or not first certification for certifying that the video data is legitimately reproduced data succeeds, and a graphics controller which determines, using the digital watermark information, whether or not second certification for certifying that the video data is to be protected from being copied succeeds, the graphics controller converting the decoded data into a protected decoded data from being copied and outputting the protected decoded data to the monitor display if the first certification and the second certification succeed, and the graphics controller inhibiting the decoded data from being output to the monitor display if the first certification fails and the second certification succeeds.