Apparatus for compressing data in a bit stream or bit pattern
US7202872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2004 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Sep 15, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T9/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention is directed to a graphics system comprising logic for generating a mask that identifies bits within a plurality of bits that are not to be impacted by a subsequent computation. The graphics system further comprises compression logic that is responsive to the mask for generating a compressed bit stream, such that the bits that are not to be impacted by the computation are not included in the compressed bit stream. Another embodiment of the present invention is directed to a graphics system comprising logic for generating a mask identifying positions within a plurality of positions of a bit stream that are to be removed during a compression operation. The graphic system further comprises logic responsive to the mask for generating a compressed bit stream, such that the positions that are to be removed are removed by variably shifting contents of successive positions by an appropriate amount, so as to overwrite contents of the positions that are to be removed (or previously shifted).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.