发明名称 |
Arrangement for concentrating pulse code modulation processing circuits in a digital telephone office |
摘要 |
Pulse Code Modulation (PCM) line circuits include analog and PCM processing circuitry. These circuits are separated into an analog line circuit portion and a PCM processing circuit portion. An analog network is connected to the analog line circuits and provides concentration to a minimal number of PCM processing circuits.
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申请公布号 |
US4286119(A) |
申请公布日期 |
1981.08.25 |
申请号 |
US19790092873 |
申请日期 |
1979.11.09 |
申请人 |
GTE AUTOMATIC ELECTRIC LABS INC. |
发明人 |
STELTE, DAVID J.;KOBYLAR, ALEX W. |
分类号 |
H04Q11/04;(IPC1-7):H04Q3/60 |
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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