Patent ID: 9646193
Date: 2017-05-09
CPC Classifications: G06F,G06K

Claim:
1. A method of authenticating a candidate fingerprint of a candidate finger against an enrolled fingerprint of an enrolled finger by means of an electronic device comprising: a touch sensor for touch-based control of said electronic device, said touch sensor having an active area corresponding to a first surface portion of said electronic device; a fingerprint sensor having an active area corresponding to a second surface portion of said electronic device; and processing circuitry connected to said touch sensor and to said fingerprint sensor, wherein said method comprises the steps of: determining, by said processing circuitry, candidate finger data indicative of a candidate positional relationship between said candidate fingerprint and said candidate finger based on said at least one touch sensor signal; determining, by said processing circuitry, an authentication criterion based on a comparison of said candidate finger data and said stored enrolled finger data; comparing, by said processing circuitry, said authentication representation with said stored enrolment representation; and determining, by said processing circuitry, an authentication result based on the comparison and said authentication criterion.