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.

Date of Patent:
Sep. 14, 1999

Filed:

Jun. 30, 1997
Applicant:
Inventors:

Chun Wang, North York, CA;

Raymond Li, Markham, CA;

Adrian Hartog, Toronto, CA;

Daniel Gudmundson, New Market, CA;

Assignee:

ATI Technologies, Inc., Thornhill, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345513 ; 345501 ; 345507 ;
Abstract

A display FIFO memory management system and method includes a programmable FIFO emulator for emulating a drain and fill time of the display FIFO memory to automatically predict a number of register entries remaining in the display FIFO memory at each predefined clock cycle. A programmable timer/counter has programmable precision to accommodate varying bandwidths of display screen display modes and is used to determine the number of entries remaining so that the emulator can accommodate varying screen display modes. A FIFO controller controls the timing of fetching display data from memory to fill the display FIFO memory based on the prediction of the number of remaining register entries in the display FIFO by the programmable emulator.


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