Systems and methods for removing errors in analog to digital converter signal chain
US9859907B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 28, 2016 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Oct 28, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An analog to digital converter (ADC) system includes two signal paths in parallel with each other, where the signal paths include separate ADC circuits to separately operate on a same input signal and output separate digital signals. A difference signal is calculated as a difference of the digital signals output from the two signal paths to determine an error present in one or both of the signal paths. The error may be modulated in one or both of the signal paths and demodulated from the difference signal according to a same digital modulation pattern to compute an error compensation signal to compensate for at least one of the modulated error and a secondary error resulting from the modulation of the error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.