Radio transmitter/receiver for digital and analog communications system
US4355401A · kind A · utility
126Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 1980 |
| Grant date | Oct 19, 1982 |
| Priority date | — |
| Expiry date | Sep 26, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2035
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
According to the present invention, a radio apparatus has a section for receiving an analog signal and a digital angle-modulated carrier wave signal. The analog signal and digital angle-modulated carrier wave output of the receiver section are demodulated to provide first and second demodulated signals. A clock signal is regenerated from the output of either the demodulating means or receiver section. A control signal selectively operates a switch for passing either the first or the second demodulated signals. The regenerated clock signal controls the switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.