发明名称 |
Device for the remote adjustment of an inaccessible element |
摘要 |
The invention relates to a device for the remote adjustment of a switchable network equipping an unattended station on a transmission line, by means of remote control frequencies emitted from a terminal station on this line. The device enables the remote control of a motor actuating a switch which operates said switchable network. The moving of the switch, and then the adjusting of the network, can be followed at the terminal station from the observing of the level of a return frequency sent back from the unattended station to the terminal station.
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申请公布号 |
US3942137(A) |
申请公布日期 |
1976.03.02 |
申请号 |
US19740525116 |
申请日期 |
1974.11.19 |
申请人 |
COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL |
发明人 |
FRANCO, PIERRE;BRZOZOWSKI, HENRI |
分类号 |
H03H7/01;G08C19/12;H04B3/00;H04B3/04;H04B17/00;(IPC1-7):H03H7/16 |
主分类号 |
H03H7/01 |
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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