发明名称 |
Rugged crosspoints for communication systems |
摘要 |
A bilateral solid-state crosspoint for use in a telecommunications switching network is disclosed comprising a pair of Darlington connected pairs of transistors connected in a complementary relationship. The transmission path in each direction through the crosspoint comprises a Darlington connected pair of transistors and one additional semiconductor junction. A control circuit provides base drive to the transistors to close the crosspoint.
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申请公布号 |
US4128742(A) |
申请公布日期 |
1978.12.05 |
申请号 |
US19770824851 |
申请日期 |
1977.08.15 |
申请人 |
BELL TELEPHONE LABORATORIES, INCORPORATED |
发明人 |
DAVIS, JAMES A. |
分类号 |
H03K17/62;H04Q3/52;(IPC1-7):H04Q3/52 |
主分类号 |
H03K17/62 |
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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