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:
Apr. 17, 2018
Filed:
Feb. 20, 2015
Qualcomm Incorporated, San Diego, CA (US);
Suryaprakash Ganti, Sunnyvale, CA (US);
Srikanth Chilukuru, San Jose, CA (US);
Livingstone Song, San Diego, CA (US);
Kostadin Dimitrov Djordjev, San Jose, CA (US);
Jack Conway Kitchens, Tonawanda, NY (US);
John Schneider, Williamsville, NY (US);
Nicholas Ian Buchan, San Jose, CA (US);
Leonard Eugene Fennell, San Jose, CA (US);
Hrishikesh Vijaykumar Panchawagh, San Jose, CA (US);
Ashish Hinger, Sunnyvale, CA (US);
Nai-Kuei Kuo, Los Gatos, CA (US);
Kollengode Narayanan, Cupertino, CA (US);
Samir Kumar Gupta, San Diego, CA (US);
Timothy Dickinson, Carlsbad, CA (US);
Max Hamel, Poway, CA (US);
David William Burns, San Jose, CA (US);
Muhammed Ibrahim Sezan, Los Gatos, CA (US);
Eugene Dantsker, San Diego, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
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.