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:
Aug. 25, 1987
Filed:
Jun. 04, 1985
Applicant:
Inventor:
Tetsuya Ikeda, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340703 ; 340701 ; 340744 ; 340804 ;
Abstract
A character and pattern display system having display memories composed of memory planes for storing red, green and blue data, comprises a color data register in which foreground color and background color data are set, and a pattern data select and control circuit which, in response to an output from the color data register, converts pattern data into data to be written into the memory planes. In writing character and pattern data of designated foreground colors and background colors into the memory planes of red green and blue, the processing is raised in speed.