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:
Apr. 17, 1990
Filed:
Jul. 21, 1987
Applicant:
Inventor:
Arun Johary, San Jose, CA (US);
Assignee:
Chips and Technology, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
340799 ; 340703 ; 340744 ;
Abstract
A video graphics controller circuit for a personal computers includes a standard, EGA-compatible graphics adapter and a high-resolution companion module. A method is disclosed for configuring the graphics adapter is to generate 2 pixels in parallel in each clock cycle. The companion module serializes the pixels to generate a serial stream of pixels at twice the frequency of the graphics adapter. The companion module can also be configured as a video line driver so that the graphics controller circuit can also run software in standard video modes.