Abstract: An example computing device includes a printed circuit board comprising: a first layer including one or more ground signal paths; a second layer including one or more ground signal paths; a third layer disposed between the first layer and the second layer; a radar antenna portion comprising a first radar antenna and electrically connected to a distal connector of the printed circuit board; a radar clock signal line configured to convey a radar clock signal between the radar antenna portion and the distal connector; and a first ground guard trace electrically coupled to the one or more ground signal paths and positioned adjacent to a first side of the radar clock signal line and parallel to a length of the radar clock signal line.

Abstract: Systems and methods detecting cable connectivity in a smart home environment are provided, including controlling, at a controller, an output of a notification when a condition is determined based on at least one signal received by the controller, converting, at a power converter coupled to a power source, power received by the power source for the controller, coupling, at a cable having at least one connector that includes a plurality of pins, the power converter and the controller together, and providing the converted power via a power pin and the at least one signal via an identification pin to the controller, and outputting, at the controller, the notification based on a determination that there is a power outage with the power supply or that the power converter is disconnected from the power source based on a detected output level of the at least one signal.

Abstract: Systems and methods detecting cable connectivity in a smart home environment are provided, including controlling, at a controller, an output of a notification when a condition is determined based on at least one signal received by the controller, converting, at a power converter coupled to a power source, power received by the power source for the controller, coupling, at a cable having at least one connector that includes a plurality of pins, the power converter and the controller together, and providing the converted power via a power pin and the at least one signal via an identification pin to the controller, and outputting, at the controller, the notification based on a determination that there is a power outage with the power supply or that the power converter is disconnected from the power source based on a detected output level of the at least one signal.

Abstract: Two input binary signals are sampled in preparation for being encoded into one signal. The encoded signal is provided with one of the three discrete states based on the sample binary states of the two input signals. A first discrete state is provided if the sampled binary state of the first input signal is a first of two binary states. A second discrete state is provided if the sampled binary state of the first input signal is a second of two binary states, and if two sampled binary states of the second input signal are the same. A third discrete state is provided if the sampled binary state of the first input signal is a second of two binary states, and of the two sampled binary states of the second input signal are different. A corresponding decoding method is also described.