Patent · US Active

Detection circuit including a noise reducing module having a switch connected between a photodiode and an integrating circuit

US9354112B2 · kind B2 · utility

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1References

7Claims

0Family size

Assignee

SOCIÉTÉ FRANÇAISE DE DÉTECTEURS INFRAROUGES—SOFRADIR · FR

Inventors

Laurent Rubaldo · Fontaine, FR
Nicolas Ricard · Voiron, FR

Key dates

Filing date	Nov 22, 2011
Grant date	May 31, 2016
Priority date	—
Expiry date	Feb 3, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH04N25/77
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The detection circuit comprises a switch connected between a photodiode and an integrator. It further comprises means for alternately switching bias conditions of the photodiode between a reverse bias and another state. The electronic traps in the photodiode are regularly passivated during the other state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.