Device and method to control a duration of integration in a photosensitive device having a matrix of photosensitive pixels
US9686491B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Jun 20, 2017 |
| Priority date | — |
| Expiry date | Nov 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/78
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A control method for a photosensitive device comprises a matrix of photosensitive pixels distributed at the intersections of rows and columns of the matrix, each of the pixels comprising a photosensitive element able to generate an electrical signal under the effect of incident radiation and a switch controlled by a row conductor, the switch allowing the electrical signal to be transferred to a column conductor, the device further comprising a readout circuit connected to the column conductor to read out successively the various pixels connected to the column conductor, the method consisting, for each of the pixels, in activating the switch a first time by deactivating the associated readout circuit and in activating the switch a second time by activating the associated readout circuit, the duration separating the first activation and the second activation of the switch being equal to a predefined duration of integration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.