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:
Feb. 28, 1995
Filed:
Jul. 10, 1992
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395164 ; 348246 ; 348247 ;
Abstract
There is disclosed a device in which detection data regarding whether the write data into a memory to store image data and the read-out data coincide or not is generated every unit data amount and the access to the memory is controlled in accordance with evaluation data obtained by evaluating the detection data in accordance with a degree of influence on an image, thereby enabling the memory to be effectively used. Information indicative of the degree of influence on the image includes the bit position of the pixel data consisting of a plurality of bits, the position of each pixel data on the screen, the density of pixels corresponding to the invalid memory cells in the memory, and the like.