Patent ID: 8358815

Claim:
A finger motion tracking apparatus used to provide user input to a computing_device, comprising: at least two linear sensor arrays each configured to sense overlapping line segments of features of a fingerprint of a finger moving along a one of at least two axes of motion of the finger, each linear sensor array including a plurality of linear sensor array sensing elements configured to capture segments of fingerprint image data, at least one of the at least two axes of motion being in a direction other than a direction of a swipe of the finger surface over the sensor surface, the overlapping line segments of the features of the fingerprint image each being sensed at different times; a memory configured to receive and store image data from each linear sensor array; and a computing device configured to generate finger motion data by comparing overlapping line segments of the fingerprint image that match each other, sensed by one of the at least two linear sensor arrays at different times, thereby determining a velocity of finger motion along each of the at least two axes of motion of the finger; wherein the at least two linear sensor arrays are each present on the same unitized electrical component.