Adaptive fingerprint-based navigation

摘要

A fingerprint-based navigation method using a finger navigation system comprising fingerprint sensing circuitry and navigation control circuitry. The method comprises the steps of: acquiring a series of navigation sequences of fingerprint images, and for each navigation sequence in the series of navigation sequences: determining an estimated momentary finger movement based on the navigation sequence of fingerprint images; determining at least one fingerprint image parameter value indicative of a fingerprint image status based on at least one fingerprint image in the navigation sequence of fingerprint images; and evaluating the fingerprint image status. The method further comprises the steps of determining a fingerprint sensing circuitry setting based on the evaluation; and providing the fingerprint sensing circuitry setting to the fingerprint sensing circuitry only during a time period between acquisition of a final fingerprint image in one navigation sequence and acquisition of a first fingerprint image in another, directly succeeding, navigation sequence.

主权项

1. A method for fingerprint-based navigation using a finger navigation system comprising fingerprint sensing circuitry and navigation control circuitry, said method comprising the steps of:
acquiring, by said fingerprint sensing circuitry, a series of navigation sequences of fingerprint images; determining, by said navigation control circuitry, for each navigation sequence in said series of navigation sequences, an estimated momentary finger movement based on said navigation sequence of fingerprint images; determining, by said navigation control circuitry, for each navigation sequence in said series of navigation sequences, at least one fingerprint image parameter value indicative of a fingerprint image status based on at least one fingerprint image in said navigation sequence of fingerprint images; evaluating, by said navigation control circuitry, for each navigation sequence in said series of navigation sequences, said fingerprint image status; determining, by said navigation control circuitry, a fingerprint sensing circuitry setting based on said evaluation; and providing, by said navigation control circuitry, said fingerprint sensing circuitry setting to said fingerprint sensing circuitry only during a time period between acquisition of a final fingerprint image in one navigation sequence and acquisition of a first fingerprint image in another, directly succeeding, navigation sequence.