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:
Feb. 10, 1987
Filed:
Dec. 08, 1983
Takashi Tsunehiro, Yokohama, JP;
Shigeo Tsujioka, Higashiyamoto, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A graphic processor is provided with a buffer corresponding to one of a plurality of display blocks forming a display face, and a refresh memory connected to the buffer. The buffer stores therein only position information of dots which are included in one display block and are a portion of dots forming a pattern. In the refresh memory, dots are stored in a memory region corresponding to the display block at positions indicated by the above position information, in accordance with color data supplied independently of the position information. This processing is performed for all of display blocks where the pattern is present, to write pattern data in the refresh memory. Thus, it is not required to provide buffers, the number of which is equal to the number of colors used for displaying the pattern in colors, but the number of buffers can be reduced.