Matching paths in a multiple path analog-to-digital converter
US9780800B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2016 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/188
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method may include processing an analog input signal with a first processing path configured to generate a first digital signal based on the analog input signal; processing the analog input signal with a second processing path configured to generate a second digital signal based on the analog input signal, and adapting a response of an adaptive filter configured to generate a filtered digital signal from the second digital signal to reduce a difference between the filtered digital signal and the first digital signal. The method may additionally or alternatively include determining nonlinearities present in the second processing path based on comparison of the first digital signal and the second digital signal, and applying a linear correction to the second digital signal to generate a corrected second digital signal with decreased nonlinearity from that of the second digital signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.