专利名称：Frequency detector发明人：Wen-Chi Lin,Keng-Nan Chen申请号：US16687708申请日：20191119公开号：US11114979B2公开日：20210907
专利附图：
摘要：A frequency detector is used for detecting a frequency difference of a signal tobe tested from a first time point to a second time point. The frequency detector includes:an alternating current coupled capacitor configured to receive the signal to be tested; arectifying circuit electrically connected to the alternating current coupled capacitor; ananalog-to-digital converter electrically connected to the rectifying circuit; a control unitelectrically connected to the analog-to-digital converter; and a counter electricallyconnected to the rectifying circuit and the control unit, wherein the control unit isconfigured to calculate the frequency difference of the signal to be tested from the firsttime point to the second time point according to outputs of the analog-to-digitalconverter and outputs of the counter.
申请人：Silicon Integrated Systems Corp.
地址：Hsinchu TW
国籍：TW
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