Automatic gain control system for an analog to digital converter
US8860590B2 · kind B2 · utility
35Cited by
13References
14Claims
0Family size
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Key dates
| Filing date | Jan 13, 2014 |
| Grant date | Oct 14, 2014 |
| Priority date | — |
| Expiry date | Jan 13, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/185
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Methods and circuits for controlling an automatic gain control (AGC) circuit wherein the AGC circuit is used to adjust the gain of a signal input to an analog to digital converter. The method includes obtaining a plurality of samples from the output of the analog to digital converter and determining whether the amplitude of each sample is greater than a threshold amplitude value. If the amplitude of a sample is greater than the threshold amplitude value then a counter value is incremented. The target average amplitude of the automatic gain control circuit is then periodically adjusted based on the counter value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.