发明授权
- 专利标题: Rugged crosspoints for communication systems
- 专利标题(中): 通信系统的坚固交叉点
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申请号: US824851申请日: 1977-08-15
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公开(公告)号: US4128742A公开(公告)日: 1978-12-05
- 发明人: James A. Davis
- 申请人: James A. Davis
- 申请人地址: NJ Murray Hill
- 专利权人: Bell Telephone Laboratories, Incorporated
- 当前专利权人: Bell Telephone Laboratories, Incorporated
- 当前专利权人地址: NJ Murray Hill
- 主分类号: H03K17/62
- IPC分类号: H03K17/62 ; H04Q3/52
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.
公开/授权文献
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