Adaptive channel equalizer having a training mode
US6693958B1 · kind B1 · utility
31Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Feb 17, 2004 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/03789
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An adaptive channel equalizer (50) for processing a demodulated VSB signal containing terrestrial broadcast high definition television information operates adaptively in blind, training, and decision-directed modes. The VSB signal is characterized by a data frame format (FIG. 2) constituted by a succession of data fields each containing a data segment prefaced by a field sync segment. Equalization is expedited by recycling (35) received training data through the equalizer more than once during a VSB data field after a field sync segment is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.