Bolometer pixel readout integrated circuit including trigger sense circuit
US10868979B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2019 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Jun 12, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2005/065
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A thermal imaging system includes a pixel array having a plurality of pixel groups. Each pixel group including a plurality of pixel rows and a trigger sense circuit including a pixel group input line in signal communication with the plurality of bolometer pixels pixel row containing a plurality of bolometer pixels. The pixel group further includes a selector switch that selectively establishes an electrical connection between the pixel group and the trigger sense circuit. The selector switch operates in a first state to disconnect the pixel group from the pixel group input line while connecting the pixel group to the integration unit such that the integration unit generates the image, and a second state to disconnect the pixel group from the integration unit while connecting the pixel group to the pixel group input line such that the trigger sense circuit monitors the pixel group for a high temperature bolometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.