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. 12, 1995
Filed:
Oct. 11, 1994
Applicant:
Inventor:
Gabriel Varga, Toronto, CA;
Assignee:
ATI Technologies Inc., Thornhill, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395164 ; 395162 ;
Abstract
A memory address pointer that selects a memory location that is mapped to a video graphics circuit port is incremented only when all bytes in a memory location have been read from or written to by the host CPU. This does not depend on the order in which the host CPU reads or writes data bytes. Therefore a video controller that uses the present invention will work with 8 bit, 16 bit as well as high performance 32 bit input/output instructions.