Trellis decoder of a DTV
US5991343A · kind A · utility
10Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1997 |
| Grant date | Nov 23, 1999 |
| Priority date | — |
| Expiry date | Jul 30, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0059
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A trellis decoder uses a branch metric unit, an ASC unit, a maximum likelihood value detector, and a normalization unit in common by time-division method to realize a trellis coding interleaver used in a DTV. The trellis decoder includes path memories, state metric memories and traceback units each as many as required in the trellis coding interleaver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.