Optical waveguides – Optical transmission cable – With electrical conductor in the same cable
Reexamination Certificate
2006-09-26
2006-09-26
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
Optical transmission cable
With electrical conductor in the same cable
C398S020000, 24, 24
Reexamination Certificate
active
07113678
ABSTRACT:
The detector comprises a loopback unit10which is connected to a connector formed at one end of an optical camera cable, an optical loop fiber11connecting a first optical fiber31and a second optical fiber32, and a short-circuit wiring12which short-circuits plural electric lines of the optical camera cable. The detector also comprises a measuring unit40comprising a transmission loss measuring part which is connected to a connector formed at the other end of the optical camera cable and measures transmission loss between the first optical fiber and the second optical fiber, a resistivity measuring part which measures resistivity between electric lines, a disconnection detecting part which detects connection or disconnection of electric lines by using measured resistivity, and a display part, which displays the result of transmission loss measured by the transmission loss measuring part and connection or disconnection detected by the disconnection detecting part.
REFERENCES:
patent: 6110107 (2000-08-01), Bellahsene et al.
patent: 6373262 (2002-04-01), Herring et al.
patent: 2005/0053340 (2005-03-01), Toriumi et al.
Canare Electric Co., Ltd.
Connelly-Cushwa Michelle
McGinn Intellectual Property Law Group PLLC
Peace Rhonda S.
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