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. 04, 2021
Filed:
Feb. 07, 2019
Applicant:
Invensense, Inc., San Jose, CA (US);
Inventors:
Daniela Hall, Eybens, FR;
Bruno Flament, Saint Julien de Ratz, FR;
Jonathan Baudot, Grenoble, FR;
Etienne DeForas, Saint Nazaire les Eymes, FR;
Harihar Narasimha-Iyer, Livermore, CA (US);
Assignee:
InvenSense, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/00 (2017.01); G06K 9/03 (2006.01);
U.S. Cl.
CPC ...
G06K 9/0002 (2013.01); G06K 9/00087 (2013.01); G06K 9/036 (2013.01); G06T 7/0002 (2013.01); G06T 2207/20221 (2013.01); G06T 2207/30168 (2013.01);
Abstract
In a method for evaluating a darkfield image for contamination, it is determined whether an object is interacting with a fingerprint sensor. Provided an object is not interacting with the fingerprint sensor, a darkfield candidate image is captured at a fingerprint sensor. The darkfield candidate image is evaluated for contamination. Based on the evaluating, it is determined whether the darkfield candidate image includes contamination.