Methods and apparatuses for variable length encoding
US7343542B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2004 |
| Grant date | Mar 11, 2008 |
| Priority date | — |
| Expiry date | Jan 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and apparatuses for variable length encoding using a vector processing unit. In one aspect of the invention, a method for execution by a microprocessor to perform variable length encoding includes: receiving a plurality of parameters, each of the plurality of parameters corresponding to one of a plurality of symbols to be variable length encoded; generating concurrently a plurality of first codewords from the plurality of parameters to represent respectively the plurality of symbols; generating a plurality of lengths representing respectively bit lengths of the plurality of first codewords; and outputting the plurality of first codewords and the plurality of lengths; where the above operations are performed in response to the microprocessor receiving a single instruction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.