发明名称 |
Electronic telephone systems |
摘要 |
A station direct station selection system is provided with a time division multiplex signalling line which carries all the signals that are required to establish and to terminate connections. The control means for establishing and terminating connections are decentralized and arranged mainly at the locations of the subscriber stations and at the locations of the line transmissions.
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申请公布号 |
US3996424(A) |
申请公布日期 |
1976.12.07 |
申请号 |
US19740499895 |
申请日期 |
1974.08.23 |
申请人 |
TELEFONBAU UND NORMALZEID G.M.B.H. |
发明人 |
AGRICOLA, MANFRED |
分类号 |
H04Q3/62;(IPC1-7):H04J3/12 |
主分类号 |
H04Q3/62 |
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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