发明名称 |
Antenna diversity receiving system |
摘要 |
<p>Antenna diversity receiving system comprising an antenna device including a plurality of FM antennas as well as controllable switching means for sequentially switching through one of said plurality of FM antennas via an antenna cable to a receiver upon reception of a switching control signal. The receiver comprises a multipath detector coupled to a pulse generator for generating a pulse signal to be used as such switching control signal. To secure accurate detection of said switching control signal the pulse generator is coupled to a pulse shaper to convert the pulse signal of the pulse generator into a pulse signal pair comprising a first signal pulse followed by a second signal pulse having a signal polarity opposite to the signal polarity of the first signal pulse, said pulse signal pair having a waveform varying symmetrically around a reference level and being supplied through the antenna cable to the antenna device. <IMAGE></p> |
申请公布号 |
EP1182800(A1) |
申请公布日期 |
2002.02.27 |
申请号 |
EP20000118353 |
申请日期 |
2000.08.24 |
申请人 |
RECEPTEC GMBH;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
MEIJER, PIETER;WEGNER, PETER |
分类号 |
H04B7/08;(IPC1-7):H04B7/08 |
主分类号 |
H04B7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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