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:
Jun. 22, 2004
Filed:
May. 21, 1999
Christian J. Wiesner, Stouffville, CA;
Collis Quinn Carter, Toronto, CA;
ATI International SRL, Barbados, KN;
Abstract
A method and apparatus for frame synchronization in a display circuit is achieved by first measuring a difference between a first frame period and a second frame period. When the difference exceeds a threshold, the first frame period is adjusted by replacing the clock corresponding to the first frame period with one of a slow frame rate and a fast frame rate. The slow and fast frame rates closely approximate an ideal frame rate that would synchronize the two frame periods. By switching between the slow and fast frame rates, the average frame rate approaches the ideal frame rate over time, and the two frame periods are effectively synchronized.