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:
Dec. 30, 2008
Filed:
Aug. 21, 2007
Applicants:
Jun Moroo, Kawasaki, JP;
Tsugio Noda, Kawasaki, JP;
Inventors:
Jun Moroo, Kawasaki, JP;
Tsugio Noda, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
To reduce the processing required to embed a code into image data and decode the code. The present invention includes a block dividing sectionthat divides original image datainto a plurality of blocks (M×N); an averaging sectionthat extracts each average density (characteristic amount) in a plurality of blocks; and an encoding sectionthat embeds a code C (a plurality of bits) into a plurality of blocks by relating one code (one bit out of the code C) to each pair of blocks mutually located in near position in the plurality of blocks based on a magnitude relation of the average density.