Qualcomm Incorporated

Max Hamel

John Keith Schneider

Hrishikesh Vijaykumar Panchawagh

Suryaprakash Ganti

Kostadin Dimitrov Djordjev

David William Burns

Jack Conway Kitchens

Samir Kumar Gupta

Timothy Dickinson

Nicholas Ian Buchan

Eugene Dantsker

Kollengode S Narayanan

Muhammed Ibrahim Sezan

Ashish Hinger

Leonard Eugene Fennell

Nai-Kuei Kuo

Livingstone Song

Srikanth Chilukuru

John Schneider

Kollengode Narayanan

Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

Ultrasonic authenticating button

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Poway, CA, United States of America

Max Hamel