Importance

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Abstract

A computer control system and method is disclosed. Such a system may include a processor and an ultrasonic area-array sensor configured to receive a ridged surface, such as one or more digits of a hand. The processor may be configured to:

(a) acquire a first information set from the sensor, the first information set representing at least a portion of the ridged surface,(b) acquire a second information set from the sensor, the second information set representing at least a portion of the ridged surface,(c) compare the first information set with the second information set to identify a common feature of the ridged surface that is present in both the first information set and the second information set,(d) determine a first position of the common feature using the first information set,(e) determine a second position of the common feature using the second information set, and(f) calculate a control measurement by comparing the first position and the second position.

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First Claim