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. 28, 1996
Filed:
Jun. 07, 1995
Applicant:
Inventor:
Ken Onodera, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ; G03F / ; G06F / ;
U.S. Cl.
CPC ...
358300 ; 358438 ; 358518 ; 358523 ; 358530 ; 382167 ; 395131 ;
Abstract
An image processing system includes a color reversing capability, and code data is received from a host computer via a reception buffer and analyzed. It the data includes a color reversing instruction, a logical operation is performed between bit patterns developed in bit-map RAM areas corresponding to yellow (Y), magenta (M) and cyan (C) inks or toners, and a bit pattern developed in a bit-map area corresponding to a black (K) ink or toner. The K bit pattern is cleared, and the bit patterns of the Y, M and C bit map areas that have been subjected to the logical operation are reversed, resulting in an attractive color reversal.