发明名称 |
Radio system with at least one leaky line and two relay devices |
摘要 |
This radio system for two-way communication with a fixed station (3) serves to cover an area which has tunnels (7). Radio communication with stations (4) inside and outside the tunnel is possible in both directions with the use of only one frequency overall. In a special embodiment, communication is also possible between two stations (4) inside the tunnel (7). <IMAGE>
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申请公布号 |
CH651432(A5) |
申请公布日期 |
1985.09.13 |
申请号 |
CH19810000807 |
申请日期 |
1981.02.06 |
申请人 |
AUTOPHON AKTIENGESELLSCHAFT |
发明人 |
MEYER, HANS RUDOLF |
分类号 |
H04B5/00;(IPC1-7):H04B7/26 |
主分类号 |
H04B5/00 |
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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