Patent ID: 9603555
Date: 2017-03-28
CPC Classifications: A61B,G01H

Claim:
1. A motion/vibration detection system, comprising: at least one transmitter, the at least one transmitter comprising a transmit/receive antenna unit and a first oscillator unit; and at least one receiver, comprising a receiving unit and a demodulation unit; wherein, the transmit/receive antenna unit is coupled to or electrically connected to a signal output port of the first oscillator unit, receives an output signal from the first oscillator unit and transmits a detection signal; the detection signal is reflected from at least one object as a reflected detection signal, which is received by the transmit/receive antenna unit; the transmit/receive antenna unit injects the reflected detection signal, as an injection signal, into the first oscillator unit and accordingly the first oscillator unit is under a self-injection locking mode; the receiving unit is coupled to or electrically connected to the demodulation unit and receives the detection signal; and the demodulation unit demodulates the detection signal received by the receiving unit into a baseband output signal, to extract at least one motion/vibration information of the at least one object.