Attenuator and method for attenuating
US8849230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 2, 2012 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Aug 26, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G3/3068
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A semiconductor device is provided, including an input attenuator configured to receive an antenna signal and to output a first attenuated signal, the first attenuated signal corresponding to the antenna signal attenuated by a first attenuation factor, the input attenuator being further configured to receive a control signal and to select one of a plurality of predetermined attenuation factors as said first attenuation factor depending on the control signal; an analog to digital converter configured to generate an intermediate signal by digitizing the first attenuated signal; and a digital attenuator configured to receive the intermediate signal and to output a second attenuated signal, the second attenuated signal corresponding to the intermediate signal attenuated by a second attenuation factor, the second attenuation factor being set so as to compensate a gain quantization error of the control signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.