A/D converter with improved resolution by sampling a superposed signal
US6831576B2 · kind B2 · utility
20Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2003 |
| Grant date | Dec 14, 2004 |
| Priority date | — |
| Expiry date | Nov 13, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/12
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method for improving the resolution of an A/D converter and/or a converter system having an S/H device and an A/D converter is described. In order to improve the resolution of the A/D converter, an auxiliary signal is superposed on an analog signal, and the superposed signal is sampled and converted into digital output values using the A/D converter. Based on the digital output values, it is possible to determine an output value having higher resolution, e.g., by averaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.