Receiver capable of demodulating multiple digital modulation formats
US5799037A · kind A · utility
63Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Sep 27, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2025/0349
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A receiver for demodulating multiple digital modulation formats including vestigial sideband (VSB), quadrature amplitude modulation (QAM), and offset QAM (OQAM). The receiver includes a timing recovery circuit that produces accurate timing information for each modulation format and a signal processor for adaptive equalization and quantization of each modulation format. The adaptive equalizer is a passband equalizer that performs blind equalization using a feed forward equalizer and a decision feedback equalizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.