发明名称 |
Digital concentrator for use with a digital telephone office |
摘要 |
Signals from line circuits requesting service are transferred to a T1 channel via a Pulse Amplitude Modulated (PAM) bus. The number of line circuits which can be served by a T1 line is not limited by the capacity of the T1 line since the probability of all line circuits requesting service at the same time is extremely low. A processing unit detects requests for service and assigns them a slot in a memory which defines the scanning sequence for insertion of line circuit signals in the T1 channel.
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申请公布号 |
US4385379(A) |
申请公布日期 |
1983.05.24 |
申请号 |
US19810289954 |
申请日期 |
1981.08.05 |
申请人 |
GTE AUTOMATIC ELECTRIC LABS INC. |
发明人 |
KELLY, MICHAEL J.;LINDSAY, ROBERT L.;KOBYLAR, ALEX W.;STELTE, DAVID J. |
分类号 |
H04Q11/04;(IPC1-7):H04Q11/04 |
主分类号 |
H04Q11/04 |
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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