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:
Sep. 06, 1988
Filed:
Feb. 10, 1986
Applicant:
Inventors:
Gordon S Work, Bristol, GB;
Gerald R Talbot, Bristol, GB;
Assignee:
INMOS Limited, Bristol, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340701 ; 340703 ; 340704 ; 340799 ;
Abstract
A color graphics control system for generating red, blue and green analog signals to a raster scan display at a pixel frequency comprises a RAM storing a pluraltiy of digital color values, digital to analog converters for converting the digital color values into analog signals, an interface to permit an external controller to write digital color values into the RAM locations, a timer including a pixel clock and RAM accessing means controlled by the timer to pipeline RAM accessing with a cycle time of more than one pixel period.