Compensation circuit and compensation method to compensate nonlinear distortions of an A/D converter
US7330141B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2004 |
| Grant date | Feb 12, 2008 |
| Priority date | — |
| Expiry date | Feb 13, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention relates to a compensation circuit (1–6) to compensate nonlinear distortions of an A/D converter comprising a signal input and a compensation system. In order to avoid the high costs related to the complex analog design of the A/D converter and/or the high energy consumption in this converter and compensation system, it is proposed that a compensation circuit be used that is composed of digital circuit elements that are connected following the A/D converter and which has a nonlinearly distorted output signal of the A/D converter supplied to it to compensate the nonlinear distortion. Adaptive coefficients are preferably employed here for the compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.