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:
May. 02, 2017
Filed:
Sep. 03, 2015
Qualcomm Incorporated, San Diego, CA (US);
Eliza Yingzi Du, Cupertino, CA (US);
Ming Yu Chen, Santa Clara, CA (US);
Esra Vural, Santa Clara, CA (US);
Kwokleung Chan, Sunnyvale, CA (US);
David William Burns, San Jose, CA (US);
Suryaprakash Ganti, Los Altos, CA (US);
John Keith Schneider, Williamsville, NY (US);
Saurav Bandyopadhyay, Milpitas, CA (US);
Jin Gu, Toronto, CA;
QUALCOMM Incorporated, San Diego, CA (US);
Abstract
A method of determining whether a biometric object is part of a live individual is described. In one such method, image information is acquired from the biometric object by using a sensor, such as an ultrasonic sensor. The image information may be analyzed in at least two analysis stages. One of the analysis stages may be a temporal analysis stage that analyzes changes in the image information obtained during a time period throughout which the biometric object was continuously available to the sensor. For example, a dead/alive stage may analyze differences between image information taken at two different times in order to identify changes from one time to the next. Other stages may focus on aspects of a particular image information set, rather than seeking to assess changes over time. These other stages seek to determine whether an image information set exhibits characteristics similar to those of a live biometric object.