Jaechun Lee,Ui Kun Kwon,Sang Joon Kim,Seungkeun Yoon
申请号：
US14864154
公开号：
US09958483B2
申请日:
2015.09.24
申请国别(地区):
US
年份:
2018
代理人:
摘要：
A detecting apparatus includes a first resonator configured to generate a first resonance signal based on power output from a power supply in response to an object changing within a range of a field of the first resonator, a switch configured to connect the first resonator to the power supply in response to a control signal, and a controller configured to sample a value of an envelope of the first resonance signal to detect a change in the object.
