Method of an image processor for transforming a n-bit data packet to a m-bit data packet using a lookup table
US7580564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 13, 2004 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Mar 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of transforming a n-bit data packet to a m-bit data packet with a lookup table. The lookup table includes at least one entry data packet and at least one respective delta value associated with each entry data packet. The method includes the acts of receiving an input data packet having n-bits, indexing the lookup table with at least a portion of the input data packet to obtain one of the at least one entry data packet, and decompressing the obtained entry data packet with the at least one respective delta value associated with the obtained entry data packet, thereby resulting in an output data packet having m-bits. The decompressing act includes using a portion of the input data packet to determine the number of delta values called for decompressing the obtained entry data packet. The method can be used in, for example, an image processor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.