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:
Feb. 07, 2006
Filed:
Apr. 15, 2002
Osamu Nakamura, Saitama, JP;
Yoichi Nishino, Kanagawa, JP;
Takashi Kohashi, Tokyo, JP;
Yuuki Matsumura, Tokyo, JP;
Shunichi Soma, Chiba, JP;
Osamu Nakamura, Saitama, JP;
Yoichi Nishino, Kanagawa, JP;
Takashi Kohashi, Tokyo, JP;
Yuuki Matsumura, Tokyo, JP;
Shunichi Soma, Chiba, JP;
Sony Corporation, Tokyo, JP;
Abstract
A digital watermark embedding processor and digital watermark embedding-processing method set the lowest-common-multiple picture size of the sizes of an unconverted picture and a converted picture when embedding digital watermarks on certain data having a possibility of format conversion and set, for the lowest-common-multiple picture size, the values of the digital watermarks in the converted picture. Based on the set values, digital watermarks for the unconverted picture are set and are embedded in the picture. In this construction, even when a watermark-embedded picture is processed for conversion, it is ensured that accurate detection from the converted picture of watermarks can be performed.