发明名称 |
Optical switching apparatus for digital signal cross connection and method of interswitch optical transmission of digital signals |
摘要 |
Disclosed is an optical switching apparatus comprising means for converting serial optical or electrical signals into parallel signals in a time division mode, first and second time division switch groups and a space division switch group for cross connecting the signal of the optical or electrical signals, and means for generating the edited optical or electrical signals as serial signals again.
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申请公布号 |
US5121381(A) |
申请公布日期 |
1992.06.09 |
申请号 |
US19890397553 |
申请日期 |
1989.08.23 |
申请人 |
HITACHI, LTD. |
发明人 |
TAKAHASHI, YASUSHI;TAKASAKI, YOSHITAKA |
分类号 |
G02F1/313;H04B10/02;H04J14/02;H04Q3/52;H04Q11/00;H04Q11/02 |
主分类号 |
G02F1/313 |
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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