Receiver circuit
US5077835A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | Aug 21, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03D2200/006
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The receiver circuit comprises an antenna circuit for supplying an antenna signal having a first frequency Fo, a local oscillator for supplying an oscillator signal having a second frequency Flo, a mixer circuit for supplying a mixed signal in response to the antenna signal and to the oscillator signal, a circuit for supplying a clock signal having a third frequency Fck equal to Flo/N in which N is a first constant factor, and a sampled data filter for filtering the mixed signal and having a characteristic frequency Fc equal to Fck/K in which K is a second constant factor. In order to simplify the construction of this receiver the local oscillator is arranged in such a way that Flo=K.multidot.N/(K.multidot.N.+-.1). The receiver circuit is useful in connection with paging receivers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.