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. 20, 1999
Filed:
Feb. 12, 1996
Applicant:
Inventors:
Akihiro Ito, Ebina, JP;
Koji Aikawa, Ebina, JP;
Assignee:
Fuji Xerox, Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T / ;
U.S. Cl.
CPC ...
345433 ; 345437 ;
Abstract
An average calculating section calculates an average of nine pixel values of each pixel block. With an assumption that the average value is expressed by 9 bits as a.sub.1 a.sub.2 a.sub.3 a.sub.4 a.sub.5 a.sub.6 a.sub.7 a.sub.8 a.sub.9 (a.sub.k : 1-bit value), a data allocating section allocates the respective bits a.sub.1 -a.sub.9 to 3.times.3 bits of each memory block of a two-value data storing section. After the nine bits a.sub.1 -a.sub.9 are read out from the two-value data storing section, a data reconstructing section combines those nine bits into the original average value, and repeatedly copies the average value to form a 3.times.3 pixel block.