Dual-mode equalizer in an ATSC-DTV receiver
US7907691B2 · kind B2 · utility
0Cited by
11References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 2005 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | Apr 30, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03732
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A decision feedback equalizer for processing a data signal provides concurrent equalizer outputs (Zok, Z1k) for hard decision directed and soft decision directed modes. The joint architecture in accordance with the present invention takes advantage of the fact, herein recognized, that for each equalizer output symbol soft decision bit representation, a subset of these bits corresponds to the hard decision representation. As a result, the invention permits the concurrent output of two distinct modes with essentially the same hardware as a one output equalizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.