Method and apparatus for recovering data from a differential phase shift keyed signal
US6381288B1 · kind B1 · utility
4Cited by
14References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1998 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Oct 30, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2271
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A receiver for receiving an analog signal that is digitally modulated using differential binary phase shift keying (DBPSK) and demodulated by a quadrature demodulator into two signals. The receiver converts the two signals into two digital signals using 2-bit analog-to-digital converters. Samples of these digital signals are then encoded according to a maximum likelihood criteria algorithm and decisions are made based on the signal constellation, which identifies the original data transmitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.