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:
Jun. 22, 2021
Filed:
Jan. 11, 2019
Applicant:
Idex Biometrics Asa, Fornebu, NO;
Inventors:
Jeffrey A Small, Rochester, NY (US);
Kenneth Jeffrey Stern, Newton Lower Falls, MA (US);
Assignee:
IDEX BIOMETRICS ASA, Oslo, NO;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/62 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06K 9/6202 (2013.01); G06K 9/0002 (2013.01); G06K 9/00033 (2013.01);
Abstract
Systems and methods for detecting a user's finger are provided. In some embodiments, a method may include applying a first electrical signal, applying a second signal, receiving a third electrical signal using a first electrode, receiving a fourth electrical signal using the first electrode, extracting the third and fourth electrical signals using a quadrature demodulator, and compensating for a phase delay between at least the first electrical signal and the third electrical signal.