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:
Sep. 26, 2006
Filed:
Feb. 20, 2002
Isao Echizen, Yokohama, JP;
Hiroshi Yoshiura, Tokyo, JP;
Hiroyuki Kimura, Hiratsuka, JP;
Akio Fukushima, Yokohama, JP;
Kousuke Anzai, Kawasaki, JP;
Isao Echizen, Yokohama, JP;
Hiroshi Yoshiura, Tokyo, JP;
Hiroyuki Kimura, Hiratsuka, JP;
Akio Fukushima, Yokohama, JP;
Kousuke Anzai, Kawasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A digital watermark information detection method for detecting information inserted as a digital watermark from contents has a step of converting the contents into a predetermined specified format and a step of trying to detect information from the converted contents. When a plurality of specified formats are defined in advance and detection of the information from the converted contents fails, the contents is converted into another specified format and the information detection is retried.