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:
Mar. 24, 1998
Filed:
May. 08, 1995
Applicant:
Inventors:
Ahmad Zandi, Cupertino, CA (US);
Edward L Schwartz, Sunnyvale, CA (US);
Assignees:
Richo Company, Ltd., Tokyo, JP;
Richo Corporation, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M / ; H03M / ;
U.S. Cl.
CPC ...
364526 ; 348391 ; 382244 ; 382167 ; 358518 ;
Abstract
A method and apparatus for performing color conversion on image data provided as a plurality of vectors representing a datum of the image. The present invention provides a forward transform that performs reversible color conversion on the plurality of vectors, such that the transform is reversible in integer arithmetic with predictable precision.