Charge-coupled analog-to-digital converter
US4171521A · kind A · utility
10Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1977 |
| Grant date | Oct 16, 1979 |
| Priority date | — |
| Expiry date | Jun 2, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/442
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Analog-to-digital conversion through successive approximation is implemented by means of a charge coupled device. During the conversion process two charges are compared, each comparison yielding one bit of a multi-bit number. By increasing the lesser of the compared charges after each comparison, the need to subtract charge as part of the successive approximation process is eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.