The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2023
Filed:
Jun. 26, 2020
Lynred, Palaiseau, FR;
Patrick Robert, Reaumont, FR;
LYNRED, Palaiseau, FR;
Abstract
An infrared sensor includes an assembly of pixels juxtaposed in rows and in columns, each pixel integrating an imaging microbolometer and an integrator assembly. The integrator assembly includes a transistor assembled as an amplifier, and a capacitor assembled in feedback on the transistor between an output node and an integration node. The integration node is connected to a skimming transistor operating as a current mirror with a skimming control transistor offset outside of the pixel. A skimming current flowing through the skimming control transistor is controlled according to the temperature of at least one thermalized microbolometer. The current mirror assembly enables to transmit the skimming current flowing through said skimming control transistor onto the integration node so that the capacitor integrates the difference between a current flowing through the imaging microbolometer and the skimming current.