Mechanism for implementing Z-compression transparently
US6724391B1 · kind B1 · utility
11Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T15/405
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a mechanism for implementing z-compression in a manner that is transparent to the user. Blocks of z-data are associated with storage locations in a z-data buffer in cleared, compressed, or uncompressed data states. Operations to the z-data buffer are monitored for selected operations. These operations may include clear or lock operations. If a selected operation is detected, a modified version of the selected operation is implemented to mask differences between the storage states of the data blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.