(57) ABSTRACT A sensor system includes a self-mixing interferometry sen sor; a drive
circuit configured to apply a modulated drive signal to an input of the self-mixing …

An optical sensing system can be integrated into a camera module. In particular, an optical
element of an optical sensing system can be disposed entirely or partly within a barrel of a …

An optical sensing system includes a transmitter side and a receiver side, and is configured
to be positioned below a display of an electronic device. The transmitter side includes a light …

An electronic device is described. The electronic device includes a housing, a set of one or
more SMI sensors attached to the housing, and a processor. The set of one or more SMI …

Methods and systems concerning non-reciprocal sensing paths for a self-mixing
interferometry operation are disclosed herein. Optical components may be used to direct …

Disclosed herein are wearable devices, their configurations, and methods of operation that
use self-mixing interferometry signals of a self-mixing interferometry sensor to recognize …

An electronic device includes a microphone, an array of coherent optical emitters, an array
of balanced coherent optical vibration sensors, and a processor. Each balanced coherent …

Abstract Systems, methods, and non-transitory computer readable media including
instructions for interpreting facial skin micromovements are disclosed. Interpreting facial skin …

An optical sensor system including a semiconductor sub strate; a self-mixing interferometry
(SMI) sensor formed on the semiconductor substrate and including a semiconductor laser …

Various sensors, including particulate matter sensors, are described. One particulate matter
sensor includes a self-mixing interferometry sensor and a set of one or more optical …