Semiconductor charge transfer devices with dark current background cancellation
US3963942A · kind A · utility
6Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Mar 6, 1995 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/63
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to reduce the steady dark current background effect on the output sequence of charge packets in a semiconductor charge transfer device, each charge packet on its first arrival at the output end of a transfer path is inverted with respect to a suitable reference level; and the inverted charge packet is then recirculated through the same transfer path for subsequent detection on its next arrival at the output end of the path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.