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:
Jul. 03, 2007
Filed:
Nov. 08, 2001
Applicant:
Shinobu Sato, Tokyo, JP;
Inventor:
Shinobu Sato, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An data insertion device inserts pattern data including information related to digital watermarking into digital image data such as MPEG2 data. First, the MPEG2 data are read picture by picture, and a type of each picture is determined. Then, an insertion intensity of the pattern data is adjusted based on the type of the picture. Finally, the pattern data, which are used for digital watermarking, are inserted into the picture with the adjusted insertion intensity.