Methods and apparatus for trellis-based modulation encoding
US8599959B2 · kind B2 · utility
9Cited by
5References
33Claims
0Family size
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Key dates
| Filing date | Dec 30, 2010 |
| Grant date | Dec 3, 2013 |
| Priority date | — |
| Expiry date | Nov 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/3994
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and apparatus are provided for trellis-based modulation encoding. A signal is modulation encoded by encoding one or more blocks of the signal using one or more corresponding edges in a trellis, wherein each edge in the trellis has a corresponding bit pattern; selecting a winning path through the trellis based on at least one transition-based run-length constraint; and generating an encoded sequence using edges associated with the winning path. Exemplary trellis pruning techniques are also provided. The winning path through the trellis is selected by minimizing one or more modulation metrics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.