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. 26, 2002
Filed:
Nov. 02, 1998
Applicant:
Inventor:
Eiichi Sasaki, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K 9/48 ;
U.S. Cl.
CPC ...
G06K 9/48 ;
Abstract
An image forming apparatus corrects pixel data subjected to various dither processes by using correction table information. The image forming apparatus forms a dot image having density gradation represented by a plurality of dots. Conditions of dots surrounding each dot in the dot image is detected. A correction of pixel data corresponding to each dot is performed in accordance with a difference in a density level of the pixel data between each dot and the dots surrounding each dot.