Offset removal in an analog to digital conversion system
US4590458A · kind A · utility
29Cited by
12References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1985 |
| Grant date | May 20, 1986 |
| Priority date | — |
| Expiry date | Mar 4, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1295
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The invention is a system for reducing offset in an analog to digital conversion system. A signal representing the system offset is stored in digital form. A digital to analog converter generates an analog feedback signal in response to the stored digital signal. The output of the system analog to digital converter is periodically sampled to update the stored digital word representing system offset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.