3D active imaging device with a circuit for integrating and timestamping incident radiation on a photosensitive element
US8334496B2 · kind B2 · utility
2Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2010 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Jan 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/772
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a device comprising a photosensitive element producing an electric charge as a function of the radiation incident thereon and a charge integrator connected to the photosensitive element and converting the charge to a voltage. According to the invention, the device comprises a comparator capable of comparing the voltage delivered by the integrator with a threshold voltage, and a memory unit for storing the instant when the voltage delivered by the integrator exceeds the threshold voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.