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专利名称：Circuit and method of signal detection发明人：Wei Chih Chen申请号：US13475813申请日：20120518公开号：US0862B2公开日：20141125
专利附图：
摘要：A circuit includes an input stage, a comparison stage, and a calibration stage.The input stage is configured to receive a first input signal, to generate a first referencesignal, and to generate a second reference signal. The comparison stage is configured togenerate a first comparison output signal in response to the first reference signal and a
third reference signal and to generate a second comparison output signal in response tothe second reference signal and a fourth reference signal. The calibration stage isconfigured to generate a detection signal responsive to the presence of the firstcomparison output signal and the second comparison output signal having a signalfrequency within a predetermined frequency band.
申请人：Wei Chih Chen
地址：Hsinchu TW
国籍：TW
代理机构：Lowe Hauptman & Ham, LLP
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