Mechanism for clipping RGB value during integer transfer
US6791564B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mechanism for, and method of, clipping a red-green-blue (RGB) integer value to an n-bit maximum value and a processor incorporating the mechanism or the method. In one embodiment, the mechanism includes: (1) a multiplexer having a first input that accepts n low-order bits of the RGB integer value and a select input that accepts at least one high-order bit of the RGB integer value and (2) an n-bit maximum value generator, coupled to a second input of the multiplexer, that provides the n-bit maximum value to the second input, an output of the multiplexer providing the n low-order bits when the at least one high order bit has a zero value and providing the n-bit maximum value when the at least one high order bit has a nonzero value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.