Patent ID: 9146311
Filing Date: 2015-09-29
Classification: G01S

Abstract:
1. A method for motion sensing, comprising: generating first and second signals separated by a time corresponding to a selected range; transmitting the first signal towards an object; receiving a return reflected signal comprising a reflection of the first signal from the object; mixing the return reflected signal from the object with the second signal to provide a detection signal when the object is at the selected range, wherein receiving a return reflected signal and mixing the return reflected signal with the second signal are performed by inputting the return reflected signal and the second signal into a voltage boosting receiver, comprising: a receiver input; a receiver output; a first diode whose output is connected to the receiver output; a first charge storage capacitor connected from between the first diode and the receiver output to ground; a second charge storage capacitor connected between the receiver input and the first diode; a second diode connected from between the second charge storage capacitor and the first diode to ground; wherein the receiver performs voltage boosting of a signal received at the receiver input.