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. 06, 2007
Filed:
Jan. 02, 2002
Toshitsugu Yamamoto, Takatsuki, JP;
Toshitsugu Yamamoto, Takatsuki, JP;
Minolta Co., Ltd., Osaka-shi, Osaka, JP;
Abstract
In a image processing apparatus executing an error diffusion process, normal error diffusion process is performed when an input pixel value is not '0'. When the input value is '0' (white pixel), “0” is automatically output, error memory of the pixel is reset, and calculation and distribution of the error are not performed. Accordingly, the speed of processing of the image processing apparatus can be improved. Further, by setting smaller the threshold value in error diffusion, the influence caused by resetting of the error memory and delay in generating a dot can be prevented.
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