Automatic gain control system with self-adaptive attack and decay time
US7869549B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2005 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Mar 13, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/30
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method of gain control by amplifying an input signal with a variable gain amplifier to generate an output signal where the gain of the variable gain amplifier is selected based upon a control signal presented at a control input of the variable gain amplifier. When the output signal is larger than the upper boundary, incrementally changing the magnitude of the control signal so as to reduce the gain of the variable gain amplifier in a step-wise linear fashion. When the output signal is smaller than the lower boundary, incrementally changing the magnitude of the control signal so as to increase the gain of the variable gain amplifier in a step-wise linear fashion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.