Method, apparatus, and article of manufacture for error detection and channel management in a communication system
US6732321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2001 |
| Grant date | May 4, 2004 |
| Priority date | — |
| Expiry date | Nov 12, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/007
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A weighting device utilizes soft reliability values and class weighting factors to detect errors in digitized information. The soft reliability values can be provided by a decoder that processes the information according to a predetermined coding scheme. Bits representing the encoded information are classified accorded to classes defined by a bit sensitivity analysis. The bit sensitivity analysis can be based on subjective and/or objective criteria. As incoming bits are received by the weighting device, they are classified and class reliability values are computed for each class based on the soft reliability values. The class reliability values are then weighted to produce weighted class reliability values. Error concealment algorithms, coding rate determination, and coding rate requests can be activated based on the weighted class reliability values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.