Abstract: A method of adjusting a neuromuscular-signal sensor is provided. The method includes monitoring, based on data from a wearable device that includes a neuromuscular-signal sensor, an impedance at the sensor that impacts the neuromuscular-signal sensor’s ability to sense neuromuscular signals. The neuromuscular-signal sensor is coupled to the wearable device such that it contacts a portion of a user’s skin. In response to detecting a change in the impedance at the neuromuscular-signal sensor that causes the impedance to be outside of a predefined range of impedance values, the method includes causing an adjustment to an operational characteristic (e.g., causing the neuromuscular-signal sensor to move or adjusting an electrical characteristic) associated with the neuromuscular-signal sensor such that the impedance at the neuromuscular-signal sensor is within the predefined range of impedance values after the adjustment to the operational characteristic.

Abstract: A system is provided for determining personal ultra-violet (UV) radiation measurements. The system may include a measurement device configured to measure UV irradiation; and a terminal device configured to receive an output of the measured UV irradiation from the measurement device and to display a specific user's personal UV exposure risk level based on at least the measured sun irradiation.

Abstract: A device includes a flexible printed circuit board and one or more conductive stiffeners. The conductive stiffeners include a conductive surface that can be electrically connected to contact pads on the flexible printed circuit board. The wearable device can further include an adhesive layer or an encapsulation layer. The adhesive layer and the encapsulation layer can include conductive portions surrounded by non-conductive portions. The conductive portions can be aligned with the conductive stiffeners and together transmit electrical energy to the contact pads of the flexible printed circuit board.

Abstract: A system is provided for determining personal ultra-violet (UV) radiation measurements. The system may include a measurement device configured to measure UV irradiation; and a terminal device configured to receive an output of the measured UV irradiation from the measurement device and to display a specific user's personal UV exposure risk level based on at least the measured sun irradiation.

Abstract: The present invention describes multilayered adhesive structures that can be used as adhesives to mount wearable devices onto the skin. The multilayered adhesive structures can comprise a buffer layer sandwiched between two adhesive layers, a first adhesive layer adhering the multilayered adhesive structure to the wearable device and a second adhesive layer adhering the buffer layer to the skin. The buffer layer separates or isolates the wearable device from the skin. By mechanically buffering the wearable device from the skin, the multilayered adhesive structures permit the devices to be skin-mounted for an extended period of time (e.g., a few hours or days) without causing moisture-associated skin injuries such as erythema, maceration, and irritation or inflammation.

Abstract: A wearable device includes a flexible printed circuit board and one or more conductive stiffeners. The conductive stiffeners include a conductive surface that can be electrically or thermally connected to contact pads on the flexible printed circuit board. The wearable device can further include an adhesive layer or an encapsulation layer. The adhesive layer and the encapsulation layer can include conductive portions surrounded by non-conductive portions. The conductive portions can be aligned with the conductive stiffeners and together transmit electrical and/or thermal energy to the contact pads of the flexible printed circuit board.

Abstract: The present invention describes breathable multilayered adhesive structures that can be used as adhesives to mount devices onto the skin. The breathable multilayered adhesive structures can comprise moisture-wicking layers adhered to the skin by a porous adhesion layer. The pores allow moisture released from the skin to be transferred away through the moisture-wicking layer. The adhesive structures permit the devices to be skin-mounted for an extended period of time (e.g., a few hours or days) without causing moisture-associated skin injuries such as erythema, maceration, and irritation or inflammation.

Abstract: A system for controlling environmental parameters can include one or more body worn sensor devices that detect and report one or more physical, physiological, or biological parameters of a person in an environment. The sensor devices can communicate sensor data indicative of the one or more physical, physiological, or biological parameters of a person to a hub that processes the data and communicates with one or more devices or systems that can be used to change environmental. In some embodiments, the environment includes a device or machine, such as a motorized vehicle and the hub can communicate with the device or machine to cause a change in the operation or function of the device or machine. For example, the motorized vehicle can be caused to stop or slow down in response to sensor data indicating that the operator is experiencing stress or becomes disabled.