Radio transceiver and related method of frequency control
US5230088A · kind A · utility
32Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1991 |
| Grant date | Jul 20, 1993 |
| Priority date | — |
| Expiry date | Oct 24, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio transceiver for use in data communications uses a single phase-locked loop to control the frequency of the receiver portion while simultaneously providing coarse control of the frequency of the transmitter portion. The output of the receiver portion is also used to provide an error signal for fine tuning the transmitter frequency after the component of the error signal caused by modulation of the transmitter portion has been removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.