CPC G01B 9/02092 (2013.01) [G06F 3/017 (2013.01); G06F 3/167 (2013.01); H04R 1/1091 (2013.01); H04R 2460/13 (2013.01)] | 20 Claims |
1. A wearable device, comprising:
a frame configured to attach the wearable device to a user and to direct a beam of light toward a skin portion of the user;
a self-mixing interferometry sensor mounted to the frame and configured to emit the beam of light; and
an interpreter configured to:
receive a self-mixing interferometry signal from the self-mixing interferometry sensor;
detect skin vibration information in the self-mixing interferometry signal; and
transmit one or more signals responsive to a detection of the skin vibration information in the self-mixing interferometry signal.
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