发明申请
- 专利标题： Signalling system
- 专利标题（中）： 信令系统
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申请号： US10038576申请日： 2002-01-08
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公开(公告)号： US20020154364A1公开(公告)日： 2002-10-24
- 发明人: Alan Edward Green , Euan Morrison
- 优先权： GB9916083.0 19990708; GB9916084.8 19990708; GB9916085.5 19990708; GB9916086.3 19990708
- 主分类号： H04B010/00
- IPC分类号： H04B010/00 ; H04B010/04
摘要：
An optical communications system is provided comprising first and second signalling devices in which a duplex communications link between the signalling devices can be established. The first signalling device includes a retro-reflector and the second signalling device includes at least one light source for directing light towards the retro-reflector. Half-duplex embodiments and full-duplex embodiments are described. A wave division multiplex retro-reflecting communication system is also described.
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