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:
May. 28, 2002
Filed:
Mar. 19, 1999
Ian M. Williams, Sunnyvale, CA (US);
Philip Cheng, San Jose, CA (US);
Microsoft Corporation, Redmond, WA (US);
Abstract
In a computer system having a CPU and a graphics subsystem, a device for dynamic graphics subsystem clock adjustment. A clock pulse generator is used for generating a clock frequency. The clock frequency is coupled to the graphics subsystem and is used by the graphics subsystem to synchronize and pace its internal operations. The clock frequency generated by the generator is variable over a range. A controller is coupled to the clock pulse generator, for adjusting the clock frequency from the clock pulse generator over the range. The controller interfaces with the computer system through an interface coupled to the controller. Through the interface, the controller communicates with the computer system or graphics subsystem and determines a load placed on the graphics subsystem. The controller adjusts the clock frequency generated by the clock pulse generator such that the clock frequency increases when the load on the graphics subsystem increases and the clock frequency decreases when the load on the graphics subsystem decreases, dynamically adjusting the clock frequency in response to the load on the graphics subsystem.