Automatic gain control with digital filtering for radio-frequency communications systems
US6985099B1 · kind B1 · utility
10Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2000 |
| Grant date | Jan 10, 2006 |
| Priority date | — |
| Expiry date | Jan 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/185
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An automatic gain control includes a digital lowpass filter for filtering a series of digital samples generated by an analog-to-digital converter to generate a lowpass filtered digital sample series; a power averager coupled to the digital lowpass filter for calculating an average power of the lowpass filtered digital sample series; and a lookup table coupled to the power averager for setting a selectable gain of an amplifier coupled to the analog-to-digital converter as a function of the average power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.