| CPC G06F 3/0414 (2013.01) | 20 Claims |
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1. An electronic device, comprising:
a housing including an exterior surface patterned with a first plurality of geometric features with first characteristics and a second plurality of geometric features with second characteristics different from the first characteristics;
one or more sensors configured to detect signal inputs generated by vibrations caused by an object contacting and moving along the first plurality of geometric features and the second plurality of geometric features of the exterior surface; and
processing circuitry configured to:
in accordance with a determination that the detected signal inputs satisfy one or more first criteria, the one or more first criteria including a criterion that is satisfied when pulse decay time characteristics of the detected signal inputs generated by the object moving along a first direction correspond to the first characteristics of the first plurality of geometric features, determine that the object is moving along the first direction; and
in accordance with a determination that the detected signal inputs satisfy one or more second criteria, the one or more second criteria including a criterion that is satisfied when pulse decay time characteristics of the detected signal inputs generated by the object moving along a second direction correspond to the second characteristics of the second plurality of geometric features, determine that the object is moving along the second direction.
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