Abstract: Techniques are described for concealed optical sensors. Apparatuses and systems may incorporate optical sensors concealed in or behind the external housing of a device, thereby enabling the device to detect ambient light conditions while minimizing aesthetic disruptions to the exterior surface of the device. The improved aesthetics that result from using hidden optical sensors versus optical sensors behind a more traditional optically transparent window or panel may lead to improved customer satisfaction.

Abstract: Apparatuses, methods, and systems for sensor detection may incorporate (i) concealed light sensors including a housing shell and an ambient light sensor positioned to detect light, (ii) a plurality of microvalves with each microvalve including a substrate, a fluid channel through the substrate, a valve element configured to open and close a fluid pathway through the fluid channel, and a piezoresistive material, (iii) a microprocessor that is configured to adjust a charging voltage for a battery, calculated from an output signal, and (iv) a radio frequency transceiver configured to control an antenna tuner to change one or more specified operational parameters of at least one antenna based on an input detected from a set of sensors in a watch body and a set of sensors in a watch band.

Abstract: In one aspect, a head-wearable device includes a body with a housing and a plurality of electrical components arranged in the housing, including a logic board. The head-wearable device is detachably couplable to the housing. The front-facing outer cover includes a first set of components mounted to the front-facing outer surface, each respective component of the first set of components comprising a first set of sensors, and a second set of components mounted to the front-facing outer surface, each respective component of the second set of components comprising a second set of sensors. The head-wearable device includes a first set of flex assemblies configured to communicatively couple a respective sensor of the first set of sensors to the logic board. And the head-wearable device includes a second set of flex assemblies configured to communicatively couple respective components of the second set of second set of components to the logic board.