Analogue to digital converter channels
US4321583A · kind A · utility
11Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 1979 |
| Grant date | Mar 23, 1982 |
| Priority date | — |
| Expiry date | May 30, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/1205
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
This is an analogue to digital converter channel including an analogue multiplexer, a switched gain amplifier, a mode amplifier, a sample and hold stage, and an analogue to digital converter. Off-set errors can be precalculated and then corrected for by switching the input to the amplifiers to null, and storing the output from the converter, and the amplified output from the gain amplifier respectively at `X` and `Y` and then combining those stored off-set error signals at an adding circuit at the input to the converter during a subsequent analogue to digital conversion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.