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:
Aug. 10, 2004
Filed:
Dec. 26, 2001
Applicant:
Inventor:
Shigeo Yamagata, Kanagawa, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/39 ;
U.S. Cl.
CPC ...
G09G 5/39 ;
Abstract
In this invention, an effective pixel count (N) in a horizontal direction of original image data is calculated, and whether this calculated effective pixel count (N) is a natural number multiple of the number (B) of banks is checked. If it is determined that the effective pixel count (N) is a natural number multiple of the number (B) of banks, original image data to which invalid image data is added in the horizontal direction is written in a memory. Since this prevents continuous access from the same bank during memory read, high-speed data access is possible even when original image data is rotated.