Power booster for a radio telephone
US5291147A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 17, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Sep 17, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/3877
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A power booster (10) comprises a power amplifier (5) and is coupled to a portable radio telephone (20) which transmits an RF signal at one of a predetermined set of power levels. A first detector (6) generates an output signal C indicative of the power of the RF signal received by the booster. The signal C is used to generate a reference signal rf from a look up table (8) in which is stored a set of values corresponding with the respective power levels. The reference signal rf, which indicates the required power level, is applied to a power control circuit (7) which controls the gain of the amplifier (5) to maintain the power output substantially constant at the required power level as determined by the value of the reference signal rf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.