Circuit and method for controlling gain in an amplifier
US7030692B2 · kind B2 · utility
2Cited by
3References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 2004 |
| Grant date | Apr 18, 2006 |
| Priority date | — |
| Expiry date | Jun 11, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3068
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit is provided for controlling the gain of an amplifier, such as an amplifier that may be used in telecommunication devices. The circuit includes an analog portion that receives signals from one or more mixers and that produces an output that is an inverse logarithmic function of the input signal. The output signal is digitally processed by a digital portion of the circuit, which determines whether gain of the amplifier should be increased, decreased, or held constant. Also, methods are provided for controlling the gain of an amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.