Patent ID: 8698636
Filing Date: 2014-04-15
Classification: A61B,G01S

Abstract:
1. A wireless detection apparatus comprising: a first antenna adapted to receive a first wireless signal and generate an electrical signal according to the first wireless signal, wherein the first wireless signal is generated by reflecting a second wireless signal from an object under test; a voltage control oscillator coupled to the first antenna and adapted to generate an oscillating signal under an injection of the electrical signal, wherein a feedback injection locking function is employed by the voltage control oscillator, a frequency of the oscillating signal is varied and pulled by a variation of the frequency of the electrical signal; and a processing unit coupled to the voltage control oscillator and adapted to evaluate movement parameters of the object under test according to a variation of the frequency of the oscillating signal, wherein the oscillating signal is transmitted to the processing unit and processed by the processing unit to obtain the movement parameters of the object under test.