Dark current suppression for solid state image sensing device
US5623306A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Jun 26, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/76
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A solid-state image sensing device having a plurality of pixels each of which outputs to a transmission portion (12) a signal charge corresponding to an amount of light projected thereon. The signal charge transmitted by the transmission portion (12) is outputted as an image signal for each pixel from the solid state image sensing device. Each pixel includes a photo-diode (32), a storage portion (41) for storing charge corresponding to a current output from the photo-diode (32) onto which light is projected, a transfer portion (42) for transferring the charge stored by the storage portion to the transmission portion, and a control portion (39) for controlling an amount of charge to be received by the transmission portion based on a dark current characteristic of a corresponding photo-diode (32).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.