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:
Jan. 12, 2021
Filed:
Feb. 28, 2019
Qualcomm Incorporated, San Diego, CA (US);
Jae Hyeong Seo, Pleasanton, CA (US);
Kostadin Dimitrov Djordjev, Los Gatos, CA (US);
Hrishikesh Vijaykumar Panchawagh, Cupertino, CA (US);
Sameer Wadhwa, San Diego, CA (US);
Nicholas Ian Buchan, San Jose, CA (US);
Yipeng Lu, Davis, CA (US);
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
An ultrasonic fingerprint sensor system of the present disclosure may be provided with an ultrasonic transmitter or ultrasonic transceiver having an electrode layer divided into a plurality of electrode segments. The ultrasonic fingerprint sensor system may detect an object over one or more electrode segments and provide a voltage burst to one or more selected electrode segments for localized generation of ultrasonic waves. The localized generation of ultrasonic waves may facilitate localized readout for imaging. In some implementations, the voltage burst may be provided in a single-ended drive scheme or differential drive scheme.