Imaging device with light-shielding region, control method thereof and CMOS image sensor with light-shielding region
US7522199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Apr 5, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/616
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An imaging device provided with a read circuit in which a light-shielding region is formed in a part of an image region where a plurality of optical/electrical conversion devices is two-dimensionally arrayed in the row and column directions and which converts a optically detected signal outputted from each of the optical/electrical conversion devices for each of the column into a digital signal, comprises a storage device for storing the outputted digital signal outputted in relation with the optical/electrical conversion device in the light-shielding region and a difference calculation device for calculating a difference between the outputted digital signal in relation with the optical/electrical conversion device in a light-receiving region except the light-shielding region and a value stored in the storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.