Demodulator
US5640427A · kind A · utility
21Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1994 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Jul 8, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2335
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A demodulator is described which includes a hard limiter, reference generator and a phase determiner. The hard limiter produces a binary phase-modulated signal from an analog phase modulated input signal having a first frequency. The reference generator provides a binary reference signal having a second frequency generally equivalent to the first frequency. The phase determiner is operative during a sampling period and determines the phase between the phase-modulated and the reference binary signals during the sampling period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.