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:
Jul. 16, 2013
Filed:
Jun. 11, 2010
David Kirk Mcallister, Holladay, UT (US);
Narayan Kulshrestha, Fremont, CA (US);
Steven E. Molnar, Chapel Hill, CA (US);
David Kirk McAllister, Holladay, UT (US);
Narayan Kulshrestha, Fremont, CA (US);
Steven E. Molnar, Chapel Hill, CA (US);
Nvidia Corporation, Santa Clara, CA (US);
Abstract
One embodiment of the present invention sets forth a technique for compressing image data with high contrast between pixels within a tile and between samples within pixels without any data loss. Partial coverage layers are generated and written to a tile that includes multiple pixels without reading the existing image data that is stored for the tile. A partial coverage layer encodes image data, such as colors, and sub-pixel coverage information for each covered pixel in a tile. The use of partial coverage layers reduces the bandwidth used to store image data when a tile is not fully covered.