Reducing distortion in an analog-to-digital converter
US9407276B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2015 |
| Grant date | Aug 2, 2016 |
| Priority date | — |
| Expiry date | Jun 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
In one embodiment, an apparatus includes: a first voltage controlled oscillator (VCO) analog-to-digital converter (ADC) unit to receive a first portion of a differential analog signal and convert the first portion of the differential analog signal into a first digital value; a second VCO ADC unit to receive a second portion of the differential analog signal and convert the second portion of the differential analog signal into a second digital value; a combiner to form a combined digital signal from the first and second digital values; a decimation circuit to receive the combined digital signal and filter the combined digital signal into a filtered combined digital signal; and a cancellation circuit to receive the filtered combined digital signal and generate a distortion cancelled digital signal, based at least in part on a coefficient value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.