Method and apparatus for graphics data interpolation
US5157388A · kind A · utility
57Cited by
4References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1991 |
| Grant date | Oct 20, 1992 |
| Priority date | — |
| Expiry date | Apr 2, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/026
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Special purpose graphics instructions are provided to implement linear interpolation of pixel attributes such as a distance (Z) value or color intensity. Multiple fixed-point real number additions are performed in parallel in a 64-bit adder. The real number sums are truncated upon being loaded in a MERGE register, the contents of which are then shifted. By performing two or more of such instructions consecutively, multiple interpolated values are accumulated in the MERGE register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.