发明名称 Multiplex SSB carrier wave communications system - combines five modulated carriers into single band for transmission
摘要 <p>The multiplex SS Bcarrierwave communications system has 5 carrier waves modulated in 5 modulators to give 5 output signals that are then combined into a signal band covering 312 t 552 kHz. At the receiver the single band is broken down into its 5 components by a processing network. The receivers processing network consists of 3 low pass filters identical to the low pass filters used at the transmitter to combine the 5 modulated carriers. A high pass filter (F4') is connected to the input of the receivers processing network and suppresses the effects of the modulators in the 60-180 kHz region. An identical high pass is connected to the output of the transmitters combining network.</p>
申请公布号 FR2358059(A1) 申请公布日期 1978.02.03
申请号 FR19760021098 申请日期 1976.07.09
申请人 TELECOMMUNICATIONS SA 发明人 MARCEL RAOUL BERTIN
分类号 H04J1/04;(IPC1-7):04J1/04 主分类号 H04J1/04
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