Method and apparatus for adaptively compensating for an inaccuracy in an analog-to-digital converter
US6690310B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 13, 2003 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Feb 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/44
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In an analog-to-digital converter (100), a method and apparatus compare (302) an analog input signal (102) with a reference signal (108) to generate a decision signal (110), and sum (304) the analog input signal with a control value (130) whose magnitude is determined by an accumulated value (126), and whose sign is determined by the decision signal, thereby generating an error signal (114). The method and apparatus further calculate (306) a correlation value (118) between the error signal and the decision signal, and accumulate (308) the correlation value to produce the accumulated value, thereby adaptively compensating for an inaccuracy in the A/D converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.