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:
Sep. 21, 2021
Filed:
Jul. 29, 2019
Qualcomm Incorporated, San Diego, CA (US);
Yipeng Lu, Davis, CA (US);
Hrishikesh Vijaykumar Panchawagh, Cupertino, CA (US);
Kostadin Dimitrov Djordjev, Los Gatos, CA (US);
Jae Hyeong Seo, Pleasanton, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
Chin-Jen Tseng, Fremont, CA (US);
Tsongming Kao, Sunnyvale, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An ultrasonic fingerprint sensor system of the present disclosure may be provided with a flexible substrate. The ultrasonic fingerprint sensor system may include a film stack disposed on the flexible substrate that provides acceptable acoustic coupling for fingerprint sensing. The ultrasonic fingerprint sensor system includes a high acoustic impedance layer in an acoustic path of ultrasonic waves through a display. The high acoustic impedance layer can be electrically conductive or electrically nonconductive. In some implementations, the ultrasonic fingerprint sensor system includes an ultrasonic transceiver or an ultrasonic transmitter separate from an ultrasonic receiver.