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. 04, 1998
Filed:
Oct. 05, 1995
Applicant:
Inventors:
Herbert G Derby, Boulder Creek, CA (US);
Thomas E Dowdy, Sunnyvale, CA (US);
Assignee:
Apple Computer, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
345509 ; 711113 ;
Abstract
A system and method for increasing utilization of a system bus and frame buffer throughput in a graphic display system. The frame buffer is changed from cache inhibited mode to cached mode in order to take advantage of the burst mode of system bus in which a plurality of values are transferred to the frame buffer following one address. Data coherency is maintained between the cache and the frame buffer by invalidating a cache-line before writing to the cache-line, and by explicitly flushing the cache-line after the cache-line is filled with data.