Improved multiplexer for a piezo ceramic identification device

Details Improved multiplexer for a piezo ceramic identification device Improved multiplexer for a piezo ceramic identification device

G - Physics

01

H

G01H 15/00 (2006.01) A61B 5/117 (2006.01) G06K 9/00 (2006.01)

Patent

CA 2756449

Provided is a Fingerprint sensor using Acoustic Impediography. The sensor includes an Application Specific Inte-grated Circuit (ASIC or IC) and an array of mechanical resonator used as sensing elements. The array of sensing elements contains multiple sensing elements arranged in rows and columns.

L'invention concerne un capteur d'empreintes utilisant l'impédiographie acoustique. Le capteur comprend un circuit intégré spécifique à une application (ASIC ou IC) et un ensemble de résonateurs mécaniques utilisé comme éléments de détection. L'ensemble d'éléments de détection contient plusieurs éléments de détection disposés en rangées et en colonnes.

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