Short wave infrared image sensor with automatic exposure and dynamic range control
US10965894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Nov 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F77/1248
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system comprises an image sensor comprising an array of infrared sensors operable to capture an image of a scene, an integration timing circuit variably controlling an integration time of the infrared sensors, a readout integrated circuit (ROIC) operable to generate signals from the infrared sensors corresponding to the captured image of the scene, and an automatic gain control operable to applied a gain to the generated signals. The system further comprises a dynamic range compensation controller operable to receive image parameters corresponding to the generated signals, compare the received image parameters to target image parameters, and generate an integration timing signal for controlling the integration timing circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.