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:
Jan. 03, 2012
Filed:
Mar. 21, 2005
Michael Hugh Anderson, Leucadia, CA (US);
Dan Minglun Chuang, San Diego, CA (US);
Geoffrey Shippee, Palo Alto, CA (US);
Rajat Rajinderkumar Dhawan, San Diego, CA (US);
Chun Yu, San Diego, CA (US);
Michael Hugh Anderson, Leucadia, CA (US);
Dan Minglun Chuang, San Diego, CA (US);
Geoffrey Shippee, Palo Alto, CA (US);
Rajat Rajinderkumar Dhawan, San Diego, CA (US);
Chun Yu, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A 3D graphics pipeline includes a prefetch mechanism that feeds a cache of depth tiles. The prefetch mechanism may be predictive, using triangle geometry information from previous pipeline stages to pre-charge the cache, thereby allowing for an increase in memory bandwidth efficiency. A z-value compression technique may be optionally utilized to allow for a further reduction in power consumption and memory bandwidth.