专利名称：FM Demodulator with lf-tuning
quadrature detector
发明人：McGinn, Michael
玉米馒头的做法申请号：EP93117873.5
申请日：19931104
困难的近义词是什么>对中国免签公开号：EP0604735A1
泸州旅游景点大全
公开日：
19940706
专利内容由知识产权出版社提供
专利附图：
梦见掉钱
摘要：A quadrature detector FM demodulates an intercarrier signal operating at an unknown frequency. An LC tank circuit (18-20) develops a 90° pha shift across inputs of a multiplier (12). The output signal of the multiplier is amplified and fedback to control a
reactance stage (62) and adjust the reactive load at an input of the multiplier so as to maintain a predetermined pha relationship independent of the frequency of the intercarrier signal. A pha compensation stage (60) removes any real component at the inputs of the multiplier also in respon to the feedback signal.
申请人：MOTOROLA, INC.
地址：1303 East Algonquin Road Schaumburg, IL 60196 US
国籍：US
梦见东西丢了代理机构：Hudson, Peter David
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