DPSK demodulator which may be used in an interrogator of a remote intelligence communication system
US5896060A · kind A · utility
22Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Apr 20, 1999 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2332
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A differentially phase shift keyed demodulator for use in an interrogator of a remote intelligent communication system. The demodulator includes a quadrature combiner delaying one of the quadrature signals and thereafter combining the delayed and undelayed signals along with a FIR matched filter, which filters the combiner output whereby the differentially phase shift keyed data on a sub-carrier can be demodulated using a simple delay and multiplying scheme in response to the filtered output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.