Methods and apparatus for decoding variably-coded signals based on prior communication
US7042963B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1999 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jul 2, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0039
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A signal representing variably coded information, i.e., information that is coded according to a code selected from a set of codes, is received at a first station. The received signal is decoding according to respective codes of the set of codes to generate respective likelihood metrics associated with respective codes of the set of codes. A code is selected from the set of codes based on the respective likelihood metrics, wherein the selection of the code from the set of codes is biased based on a prior communication between the first station and a second station that transmitted the signal. The received signal is the decoded according to the selected code to generate an estimate of the information. According to another embodiment, a signal representing a first variably code field and a second field that indicates the code applied to the first field, is received and processed to generate an estimate of the second field. Based on a confidence in the generated estimate of the second field, the receiving station either identifies the code applied to the first field based solely on the generated estimate of the second field, or identifies the code applied to the first field based on t…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.