Infrared focal plane readout integrated circuit
US10036669B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Jul 31, 2018 |
| Priority date | — |
| Expiry date | Sep 22, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An infrared focal plane readout integrated circuit that includes a unit bias circuit, an integrating circuit, and an on-chip analog-to-digital conversion circuit, where the integrating circuit includes a first switch tube, a second switch tube, and an integrating capacitor; an output end of the unit bias circuit is connected to an input end of the first switch tube; an input end of the second switch tube is connected to a set terminal; both an output end of the first switch tube and an output end of the second switch tube are connected to one end of an integrating capacitor and an input end of the on-chip analog-to-digital conversion circuit; the other end of the integrating capacitor is grounded; and the on-chip analog-to-digital conversion circuit includes a first inverter, a second inverter, a third inverter, an exclusive-OR gate, a built-in sequence counter, and a register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.