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:
Dec. 15, 2020
Filed:
Jul. 27, 2017
Commissariat À L'énergie Atomique ET Aux Énergies Alternatives, Paris, FR;
Idemia Identity & Security France, Issy-les-Moulineaux, FR;
Jean-François Mainguet, Grenoble, FR;
Joël Yann Fourre, Moissy-Cramayel, FR;
Josep Segura Puchades, Fontaine, FR;
Abstract
Thermal pattern sensor including a matrix of multiple rows and columns of pixels, each pixel comprising: - a pyroelectric capacitor comprising a pyroelectric portion positioned between lower and upper electrodes, in which a first of these electrodes forms a readout electrode; and —a heating element that is capable of heating the pyroelectric portion of said pixel; and in which: - for each row of pixels, the heating elements are capable of heating the pyroelectric portion of the pixels of the row independently of the heating elements of the pixels of the other rows; and —for each column of pixels, the readout electrodes of each pixel are electrically linked to one another and are formed by a first electrically conductive portion that makes contact with the pyroelectric portions of the pixels of the column, and that is separate from the first portions of the other columns.