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:
Aug. 13, 2019
Filed:
Nov. 28, 2016
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Idemia Identity & Security France, Issy-les-Moulineaux, FR;
Jean-François Mainguet, Grenoble, FR;
Josep Segura Puchades, Fontaine, FR;
Margaux Vigier, Sassenage, FR;
COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES, Paris, FR;
IDEMIA IDENTITY & SECURITY FRANCE, Issy-les-Moulineaux, FR;
Abstract
A thermal pattern sensor comprising a plurality of pixels, each pixel comprising at least one pyroelectric capacitor formed by at least one portion of pyroelectric material arranged between a lower electrode and an upper electrode, in which one of the lower and upper electrodes corresponds to an electrode for reading the pixel and in which a heating element that can heat the portion of pyroelectric material of the pyroelectric capacitor of the pixel by Joule effect during a measurement of the thermal pattern by the pyroelectric capacitor of the pixel is formed by the other of the lower and upper electrodes.