Method and circuit for adaptive automatic gain control
US7945226B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 25, 2008 |
| Grant date | May 17, 2011 |
| Priority date | — |
| Expiry date | Dec 30, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3084
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for adaptive automatic gain control and an automatic gain control circuit are provided. A predetermined waveform is injected into the automatic gain control circuit. A signal is sampled at at least one point in the automatic gain control circuit in which the sampled signal includes the injected predetermined waveform. A small-signal control characteristic is calculated using the sampled at least one signal. A determination is made as to whether the calculated small-signal control characteristic is valid. In the case of a valid determination, the calculated small-signal control characteristic is used to adjust the gain of the automatic gain control circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.