Patent · US Active

Method and circuit for adaptive automatic gain control

US7945226B2 · kind B2 · utility

4Cited by
2References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 25, 2008
Grant dateMay 17, 2011
Priority date
Expiry dateDec 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.