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 |
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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