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:
Jun. 02, 2009
Filed:
Feb. 18, 2005
Applicants:
Yasushi Abe, Kanagawa, JP;
Takayuki Nishimura, Tottori, JP;
Inventors:
Yasushi Abe, Kanagawa, JP;
Takayuki Nishimura, Tottori, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G09C 3/00 (2006.01); G09C 5/00 (2006.01); H04K 1/02 (2006.01); H04L 9/00 (2006.01); G06F 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
An image processing method includes the steps of: dividing digital content into run-lengths each including one or more consecutive pixels having an identical color; and embedding digital watermark information in the run-lengths while saving topology (first topology preservation law).