发明授权
- 专利标题: Switch for self-healing ring
- 专利标题(中): 切换自愈环
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申请号: US89948申请日: 1993-07-12
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公开(公告)号: US5475676A公开(公告)日: 1995-12-12
- 发明人: Masahiro Takatori , Yukio Nakano , Yoshihiro Ashi , Hiroyuki Fujita
- 申请人: Masahiro Takatori , Yukio Nakano , Yoshihiro Ashi , Hiroyuki Fujita
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX4-186584 19920714; JPX4-186585 19920714
- 主分类号: H04J3/08
- IPC分类号: H04J3/08 ; H04Q11/04
摘要:
First stage and third stage four-input four-output space division switches are arranged before and after a second stage time division switch, and two outputs of the first stage space division switch and two inputs of the third stage space division switch are connected by bypassing the time division switch. The time division switch has n control memories. A first control memory stores connection information in a normal state of each path set in the transmission line, a second control memory stores connection information of a first alternative path when failures occur in a path, and an n-th control memory (n is any integer equal or greater than 3) stores connection information of an (n-1)th alternative path, and a control memory corresponding the a failure pattern is selected from the n control memories for each path.
公开/授权文献
- USD429739S Fuel dispensing unit 公开/授权日:2000-08-22