Abstract: Systems and methods are disclosed for adjusting clock frequencies of endpoint devices in a mesh network for narrowband and ultra-narrowband communications. An endpoint device receives a reference timing signal over a wireless network from a reference device in the network. The endpoint device determines the current value of the clock frequency of the endpoint device and further determines the frequency difference between the reference frequency of the reference timing signal and the current value of the clock frequency. Based on the frequency difference, the endpoint generates a control signal and applies the control signal to the crystal oscillator of the endpoint device to adjust the frequency of the crystal oscillator. The endpoint device communicates with another device in the network using the oscillating signal generated by the adjusted crystal oscillator.

Abstract: Systems and methods are disclosed for adjusting clock frequencies of endpoint devices in a mesh network for narrowband and ultra-narrowband communications. An endpoint device receives a reference timing signal over a wireless network from a reference device in the network. The endpoint device determines the current value of the clock frequency of the endpoint device and further determines the frequency difference between the reference frequency of the reference timing signal and the current value of the clock frequency. Based on the frequency difference, the endpoint generates a control signal and applies the control signal to the crystal oscillator of the endpoint device to adjust the frequency of the crystal oscillator. The endpoint device communicates with another device in the network using the oscillating signal generated by the adjusted crystal oscillator.

Abstract: Described is a system that includes a solid-state switch in series with a battery and a controller. The system also includes a capacitor coupled between a source and a gate of the solid-state switch and a resistor coupled between the gate of the solid-state switch and ground. The solid-state switch gradually transitions from an open state to a closed state over a time constant of the capacitor and the resistor upon application of power from the battery to the solid-state switch. The system further includes a first switching device that controls the application of power from the battery to the solid-state switch. Additionally, the system includes a second switching device that provides a discharge path of the capacitor upon completion of a task by the controller.

Abstract: Described is a system that includes a solid-state switch in series with a battery and a controller. The system also includes a capacitor coupled between a source and a gate of the solid-state switch and a resistor coupled between the gate of the solid-state switch and ground. The solid-state switch gradually transitions from an open state to a closed state over a time constant of the capacitor and the resistor upon application of power from the battery to the solid-state switch. The system further includes a first switching device that controls the application of power from the battery to the solid-state switch. Additionally, the system includes a second switching device that provides a discharge path of the capacitor upon completion of a task by the controller.