FM receiver
US4523329A · kind A · utility
2Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1983 |
| Grant date | Jun 11, 1985 |
| Priority date | — |
| Expiry date | Sep 6, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D1/2236
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An FM receiver comprising a 90 degree phase shifter 21 of the FM signal and a first multiplier 22 for multiplying the FM signal and the phase shifted signal to produce a main signal L+R and a second multiplier 6 for multiplying the FM signal, the phase shifted signal and a subcarrier wave of 38 kHz to produce a sub-signal L-R.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.