Analogue/digital converter microelectronic device for equalising charges
US7541964B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2007 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jun 4, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M1/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to a microelectronic image sensor device comprising: at least one detector formed by at least one photo-detector element, at least one integration capacitor associated to the photo-detector and capable of providing at least one analogue signal capable of varying at least according to a current provided by the detector, and analogue/digital conversion means for equalising charges comprising: a comparator, injector means capable of modifying the analogue signal by one or more injections, respectively of a given quantity of charge, into the capacitor, command means for charge injector means capable of modulating the given quantity of charge injected according to the intensity of said current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.