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:
Nov. 24, 2015
Filed:
Feb. 14, 2012
Applicant:
Seijiro Morita, Kawasaki, JP;
Inventor:
Seijiro Morita, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/01 (2006.01); H04N 1/04 (2006.01); H04N 1/60 (2006.01); H04N 1/047 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0178 (2013.01); H04N 1/0473 (2013.01); H04N 1/603 (2013.01); G03G 2215/0119 (2013.01); G03G 2215/0161 (2013.01); H04N 2201/0094 (2013.01); H04N 2201/04787 (2013.01); H04N 2201/04791 (2013.01); H04N 2201/04793 (2013.01); H04N 2201/04796 (2013.01);
Abstract
Since memory access is performed on a large number or discontinuous address regions, the performance of memory access is significantly degraded; in a system that performs high speed image formation, registration deviation cannot be corrected. Sub scanning position information corresponding to the profile of registration deviation is set, and image correction processing is divided into two stages, high resolution correction processing using line buffers formed with a memory which allows high speed random access and low resolution correction processing using a memory whose capacity is easily increased.