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:
Apr. 27, 1999
Filed:
Jan. 16, 1997
Hideo Kumashiro, Toyokawa, JP;
Minolta Co., Ltd., Osaka, JP;
Abstract
An input signal represented by values of many levels obtained by reading out an original image is applied to a pixel characteristic extracting unit for extraction of a characteristic of a pixel. Based on the extracted pixel characteristic, a gain calculating process is effected based on the pixel characteristic in a first gain calculating unit. An attribute flag showing an image characteristic extracted by the pixel characteristic extracting unit is added to the gain calculated error data which is stored. An area characteristic is determined in an area characteristic extracting unit based on the flag. Based on the determination result, error correction with high precision is carried out in a second gain calculating unit.