Low-cost receiver using automatic gain control
US8428536B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Apr 23, 2013 |
| Priority date | — |
| Expiry date | Mar 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3068
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A receiver (100) includes a first element (110) with a signal input, a control input, a signal output, and gain steps of a first magnitude, a signal processing circuit (120-168) with a signal input coupled to the first element, and a signal output, a second element (180) that has a signal input coupled to signal processing circuit, a control input, a signal output, and gain steps of a second magnitude smaller than the first magnitude, and a controller (180) that has a control output coupled to the first element (110), a control output coupled to the second element (180), and that adjusts receiver (100) gain by changing the first element (110) gain by a first magnitude, changing the second element (180) gain by substantially an inverse first magnitude, and subsequently changing the gain of the second element (180) by steps of the second magnitude to achieve a desired gain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.