发明名称 Amplitude demodulator
摘要 In an amplitude demodulator for broadcast receivers, an intermediate frequency signal is converted into a digital intermediate frequency signal. The digital intermediate frequency signal is transposed into the base band and amplitude-modulated. Amplification or attentuation of the intermediate frequency or of the amplitude-modulated signal is controlled in order to keep the direct component of the amplitude-modulated signal constant.
申请公布号 DE4409474(A1) 申请公布日期 1995.03.16
申请号 DE19944409474 申请日期 1994.03.19
申请人 BLAUPUNKT-WERKE GMBH, 31139 HILDESHEIM, DE 发明人 CHAHABADI, DJAHANYAR, DR., 31139 HILDESHEIM, DE;VOGT, LOTHAR, DR., 31249 HOHENHAMELN, DE
分类号 H03D1/22;(IPC1-7):H03D1/02 主分类号 H03D1/22
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