Method and a system for variable-length decoding, and a device for the localization of codewords
US6980138B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Dec 27, 2005 |
| Priority date | — |
| Expiry date | Nov 26, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M7/42
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and associated decoder, system, device and storage means for decoding codewords of variable length from a bit stream, in which minimum and maximum lengths are defined for the codewords, wherein the bit stream is processed in parts, each part being subjected to a search for codewords, and where found codewords are decoded. At least partly overlapping fields are extracted from the bit stream part in such a way that the starting point of at least two fields is a possible starting point of a codeword in that part. In at least one field, the end of the codeword is searched, and the data related to the codeword is determined on the basis of the end point of the codeword. Data relating to at least one codeword is used to determine the occurrence of the codeword intended to be decoded in a field, and the found codeword is decoded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.