Imaging device with high dynamic range
US8742310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2012 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/809
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A high dynamic range imaging device including a first substrate with multiple pixels, each pixel having a photodetector associated with multiple read-out circuits. Each read-out circuit including a device for charging and discharging the photodetector that is associated with the read-out circuit. Each charging and discharging device being controlled by a charge and discharge activation signal imposing an integration time of the photodetector of each pixel associated with the read-out circuit. The device further including a second substrate, distinct from the first, with an electronic control circuit for controlling the charging and discharging devices, designed for generating multiple charge and discharge activation signals to be transmitted to the charging and discharging devices using electrical connections between the first and second substrates. Each pixel or group of pixels is associated to an activation signal imposing an integration time specific and appropriate to the pixel or group of pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.