Method and apparatus for enhancing the signal resolution of an analog-to-digital converter
US4963881A · kind A · utility
4Cited by
2References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1989 |
| Grant date | Oct 16, 1990 |
| Priority date | — |
| Expiry date | Oct 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/201
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for enhancing the resolution of an analog-to-digital converter. The method uses the addition of a second analog waveform to a first analog signal which is to be converted. When the composite signal is converted to digital form, this enhances the effective resolution of the A/D converter with respect to the first signal. Integration of the composite digital signal causes the effects of the second waveform to average to zero. The result is an enhanced resolution signal without undesired effects of the added second signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.