Frequency-synthesizer type transceiver
US4097805A · kind A · utility
12Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1976 |
| Grant date | Jun 27, 1978 |
| Priority date | — |
| Expiry date | Jun 14, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
This invention provides a frequency-synthesizer type transceiver having a voltage-controlled oscillator and means for comparing the phases of mixed frequency, whereby the voltage-controlled oscillator is regulated by signals resulting from the phase comparison to generate a controlled frequency serving as the local oscillator frequency for transmitting and receiving. The frequency-synthesizer type transceiver further includes a means for selectively switching from the one carrier frequency to the other to differentiate the transmitting and receiving frequencies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.