Low noise charge gain circuit and CCD using same
US7078670B2 · kind B2 · utility
11Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2004 |
| Grant date | Jul 18, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/806
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A charge coupled device (CCD) includes a low noise charge gain circuit that amplifies charge of a cell dependent upon the charge accumulated by the cell. The low noise charge gain circuit receives clocking signals, such as from an input diode, which allow charge to accumulate in a reservoir well and then flow into a receiving well. The low noise charge gain circuit also receives a voltage signal corresponding to charge accumulated on an associated cell. The amount of charge flowing into the receiving well depends on this voltage signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.