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:
Dec. 04, 2012
Filed:
May. 23, 2006
Applicants:
Masaya Yamamoto, Arcadia, CA (US);
Senichi Onoda, Osaka, JP;
Minehisa Nagata, Hyogo, JP;
Kaoru Murase, Nara, JP;
Inventors:
Masaya Yamamoto, Arcadia, CA (US);
Senichi Onoda, Osaka, JP;
Minehisa Nagata, Hyogo, JP;
Kaoru Murase, Nara, JP;
Assignee:
Panasonic Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 7/167 (2006.01);
U.S. Cl.
CPC ...
Abstract
A data generating device is capable of preventing unauthorized extraction of plaintext content between decryption processing and digital watermark embedment processing. A content reproducing device obtains restoration information and, in accordance with the restoration information, selectively performs predetermined restoration processing and processing of embedding device unique information, on content data at a position shown by the restoration information.