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:
May. 03, 1988
Filed:
Feb. 05, 1987
Applicant:
Inventor:
Katsuhisa Tsuji, Tokyo, JP;
Assignee:
Ricoh Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358284 ; 358283 ;
Abstract
A digital image processing device for intermediate tone having threshold value tables provided with threshold values different from each other set for each of picture elements in a unit region containing a plurality of picture elements for gradation processing, in which inputted multi-value data are converted into binary data referring to said table and intermediate tone is expressed by adjusting the number of picture elements to be dotted and picture elements not to be dotted within the unit region of the gradation processing.