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公开(公告)号:EP0134600B1
公开(公告)日:1988-09-28
申请号:EP84200963.1
申请日:1984-07-04
发明人: Bouland, Maurice , van Gurp, Wilhelmus Adrianus Johannes , Zwijsen, Wilhelmus Antonius Joseph Marie
CPC分类号: H03D3/006 , H03D2200/0064 , H04N11/186
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公开(公告)号:EP0134600A1
公开(公告)日:1985-03-20
申请号:EP84200963.1
申请日:1984-07-04
发明人: Bouland, Maurice , van Gurp, Wilhelmus Adrianus Johannes , Zwijsen, Wilhelmus Antonius Joseph Marie
CPC分类号: H03D3/006 , H03D2200/0064 , H04N11/186
摘要: A F.M. demodulation circuit can be rendered insensitive to amplitude, level and waveform variations of the frequency-modulated carrier signal by using a frequency- demodulator (33,37) tuned to half the frequency and preceded by a divide-by-two divider (21).
摘要翻译: 一个F.M. 解调电路可以通过使用调谐到频率的一半的频率解调器(33,37)并且被二分频除法器(21)之前的频率调制载波信号的幅度,电平和波形变化而变得不敏感。
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