Unified technique for multi-rate trellis coding and decoding
US6769090B1 · kind B1 · utility
7Cited by
19References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2000 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Mar 13, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/4107
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention, generally speaking, provides efficient multi-rate trellis encoder and decoder structures. The trellis encoder allows for a variable number of uncoded bits to be represented in a transmit symbol. The decoder maps received symbols to a smaller constellation by dropping selected symbol bits, whereby, for each of multiple cosets, points within that coset are mapped to a fewer number of points. Substantial simplification of the decoder structure is therefore achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.