Patent ID: 11861072
Assignee: APPLE INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. A method of identifying a type of gesture, comprising:
emitting a beam of electromagnetic radiation from each self-mixing interferometry (SMI) sensor in a set of SMI sensors disposed in a wearable device;
sampling an SMI signal generated by each SMI sensor to produce a set of time-varying sample streams for the set of SMI sensors;
generating a respective set of digitized samples for each time-varying sample stream in the set of time-varying sample streams;
analyzing, using a processor of the wearable device, the respective set of digitized samples for each time-varying sample stream;
identifying, using the processor and based at least in part on the analyzing, at least one SMI signal, in the set of SMI signals, from which to extract information about a movement of the user; and
determining, using the processor and based at least in part on the at least one SMI signal, the movement of the user.