Method of and apparatus for calibrating receive path gain
US6701264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13333
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An apparatus (100), and method, for calibrating gain in satellite uplink receiver electronics includes an uplink receiver, a measurement processor, and an attenuator (106). The measurement processor receives the uplink signal from the uplink receiver and includes circuitry to sample (118) the uplink signals during a blanking interval and outputs a gain calibration signal. The sampling circuitry (118) may sample uplink signals periodically or responsive to extreme changes in conditions, and may sample the uplink signal multiple times during a blanking interval to output a multiple measurement sample. The measurement processor may include averaging circuitry (124) to produce a sample average. The method and apparatus (200) may both be used with TDMA systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.