Pre and post filter automatic gain control with bounded pre-filter gain control
US8106709B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Dec 3, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Dec 3, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G9/005
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electronic circuit includes a first variable gain amplifier for amplifying a signal at an input to provide a first amplified signal; a filter receiving the first amplified signal to provide a filtered signal; a second variable gain amplifier for receiving and amplifying the filtered signal; a second gain control bock, to provide at least one gain control signal derived from the filtered signal, one of the at least one gain control signal to control the gain of the second variable gain amplifier; and a bounding block for receiving one of the at least one gain control signal from the second gain control block, and for generating therefrom a bounded gain control signal to control gain of the first variable gain amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.