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:
Apr. 21, 2015
Filed:
Oct. 24, 2012
Applicant:
Fujitsu Limited, Kawasaki-shi, JP;
Inventors:
Shohei Nakagata, Kawasaki, JP;
Taizo Anan, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 1/00 (2006.01); H04L 9/08 (2006.01); H03M 13/09 (2006.01); H03M 13/11 (2006.01); H03M 13/15 (2006.01);
U.S. Cl.
CPC ...
G06T 1/005 (2013.01); G06T 2201/0063 (2013.01); H03M 13/09 (2013.01); H03M 13/11 (2013.01); H03M 13/1515 (2013.01); H04L 9/0869 (2013.01); H04L 2209/608 (2013.01);
Abstract
A digital watermark embedding apparatus is disclosed. A first codeword including a bit sequence of digital watermark information is generated. A cyclic shift sequence is generated based on the digital watermark information. A second codeword is generated by cyclically shifting the first codeword based on the generated cyclic shift sequence. The generated second codeword is embedded in contents.