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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.:

US 10591360 B1

PDFFull Text
Date of Patent:
Mar. 17, 2020

Filed:

Jul. 20, 2018

Thermal sensor with two superposed pyroelectric portions for measuring a charge differential

Applicants:

Commissariat a L'energie Atomique ET Aux Energies Alternatives, Paris, FR;

Idemia Identity & Security France, Issy les Moulineaux, FR;

Inventors:

Jean-Francois Mainguet, Grenoble, FR;

Joel Yann Fourre, Marly le Roi, FR;

Assignees:

COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, Paris, FR;

IDEMIA IDENTITY & SECURITY FRANCE, Issy les Moulineaux, FR;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

John B Strege

Int. Cl.
CPC ...
G01J 5/34 (2006.01); A61B 5/1172 (2016.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G01J 5/34 (2013.01); A61B 5/1172 (2013.01); G06K 9/0002 (2013.01);
Abstract

A pyroelectric sensor includes several pixels distributed above a substrate and each pixel includes a first portion made of a pyroelectric material, in direct physical contact with a charge collection electrode, a second portion made of a pyroelectric material, in direct physical contact with a charge collection electrode, the first portion, the second portion and the at least one charge collection electrode being superposed above the substrate, at least one heating element to heat the first and second portions including a pyroelectric material, and an electronic device to measure a difference between charges generated by the first portion including a pyroelectric material and charges generated by the second portion including a pyroelectric material. The pyroelectric sensor makes it possible to suppress a useless part of a measurement signal. It is particularly advantageous for taking an image of a papillary print.

Find Patent Forward Citations

Mainguet, Jean-Francois. (2020). Thermal sensor with two superposed pyroelectric portions for measuring a charge differential (U.S. Patent No. 10591360). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10591360

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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