Per-pixel detector bias control
US11561132B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2020 |
| Grant date | Jan 24, 2023 |
| Priority date | — |
| Expiry date | Jun 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2001/446
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pixel includes a detector that changes its operating characteristics based on incident energy, an integration capacitor arranged to discharge stored charge through the detector based on changes in the operating characteristics, and an floating gate injection device disposed between the photo-diode and the integration capacitor that controls flow of the charge from the integration capacitor to the detector. The floating gate injection device has a gate, a source electrically coupled to the detector at a first node, and a drain electrically coupled to the integration capacitor. The gate has a control voltage (VT) stored therein to set to a per-pixel bias gate voltage to control a detector bias voltage of the detector at the first node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.