Matrix image recorder with image sensor and a plurality of row conductors
US7561197B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | Nov 14, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/77
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to matrix image sensors intended in particular for digital photography. The invention provides a driver in each pixel that allows exposure control common to the entire matrix. The driver comprises five transistors, a photodiode and, apart from a supply conductor and a ground, four control conductors, these being an exposure control conductor common to all the pixels of the matrix; a row selection conductor common to all the pixels of any one row; a reset conductor common to all the pixels of any one row; and a column conductor for collecting the signal read on the pixels during row-by-row reading of the charges photogenerated in the pixels of the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.