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US06787745B2 Fiber optic signal detector with two switchable input channels 失效
具有两个可切换输入通道的光纤信号检测器

  • Patent Title: Fiber optic signal detector with two switchable input channels
  • Patent Title (中): 具有两个可切换输入通道的光纤信号检测器
  • Application No.: US10042947
    Application Date: 2002-01-08
  • Publication No.: US06787745B2
    Publication Date: 2004-09-07
  • Inventor: Roger A. Hajjar , Frank Whitehead
  • Applicant: Roger A. Hajjar , Frank Whitehead
  • Main IPC: G01J120
  • IPC: G01J120
Fiber optic signal detector with two switchable input channels
Abstract:
Switchable two-fiber systems to provide a backup fiber link to a signal detector where the backup signal is switched to the signal detector when the primary signal fails.
Abstract(Chinese):

可切换的双光纤系统提供备用光纤链路到信号检测器，当主信号出现故障时，备用信号切换到信号检测器。

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