Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2011-06-21
2011-06-21
Kim, Ellen (Department: 2874)
Optical waveguides
Optical waveguide sensor
C385S141000, C436S164000
Reexamination Certificate
active
07965909
ABSTRACT:
A fiber-optic surveillance system (10) includes a fiber-optic sensor (15) comprising a serial array (15) of fiber-optic point-sensors (16), successive point-sensors being linked by a distributed fiber-optic sensor (18). The system allows the location of intruder events along the sensor to be determined, and provides a reduction in the incidence of false-alarms compared to prior art systems.
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Hill David J
Nash Philip J
Kim Ellen
Nixon & Vanderhye P.C.
QinetiQ Limited
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