CPC G06F 3/014 (2013.01) [G06F 3/033 (2013.01); H03K 17/9622 (2013.01); G06F 2203/0331 (2013.01)] | 20 Claims |
1. A finger device configured to be worn on a finger of a user, comprising:
a housing configured to be mounted on the finger;
a flexible membrane coupled to the housing that rests against a side portion of the finger and that moves in response to movement of the finger; and
a self-mixing optical sensor that measures changes in a distance between the self-mixing optical sensor and the flexible membrane.
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