Fingerprint authentication using touch sensor data

US9607205B2 · kind B2 · utility

Assignee

• FINGERPRINT CARDS AB · SE

Inventors

• Eric Setterberg · Mölndal, SE
• Hamid Sarve · Handen, SE
• Hans Thörnblom · Kungsbacka, SE
• Kenneth Jonsson · Vadstena, SE

Key dates

• Filing date: Nov 24, 2015
• Grant date: Mar 28, 2017
• Expiry date: Nov 24, 2035

Classification

• Technology area (CPC —): General

Abstract

A method of authenticating a candidate fingerprint by means of an electronic device comprising a touch sensor; and a fingerprint sensor. The method comprises the steps of: acquiring at least one touch sensor signal indicative of a sub-area of the touch sensor being touched by the candidate finger; acquiring at least one fingerprint image of the candidate fingerprint; retrieving a stored enrollment representation of the enrolled fingerprint of the enrolled finger; determining an authentication representation of the candidate fingerprint based on the fingerprint image; and determining an authentication result based on the authentication representation, the stored enrollment representation, and the at least one touch sensor signal.