Muting signal generation circuit for an FM receiver
US4283793A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1979 |
| Grant date | Aug 11, 1981 |
| Priority date | — |
| Expiry date | Oct 2, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/34
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An improved muting signal generation circuit of an FM receiver of the type in which the deviation of an FM detection signal relative to a predetermined level is detected. When the deviation of the FM detected signal is above or below a predetermined value, a muting signal is generated. A band elimination filter is provided for eliminating the frequency components of an information signal contained in the FM detection signal. A detuning detection circuit detects detuning in response to the output of the band elimination filter. A muting signal generation circuit generates a muting signal in response to the detection output of the detuning detection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.