Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2005-12-27
2005-12-27
Goins, Davetta W. (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S541000, C340S556000, C340S557000, C340S564000, C356S073100, C356S450000, C359S196100, C359S577000, C385S140000
Reexamination Certificate
active
06980108
ABSTRACT:
There is provided an electronic security system for a perimeter structure that incorporates a fiber optic cable secured to the perimeter structure. Typically the perimeter structure is a fence. A light pulse is transmitted down the fiber optic cable. Mechanical attenuation devices disposed at various locations along the fiber optic cable are responsive to intrusion attempts. The mechanical attenuation devices produce measurable attenuations to the light pulse. Using backscattering light detection technology an intrusion attempt and the location of an intrusion is detected.
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Borowiec Richard
Convertino Dan Convertino
Gebbia Woods
Giotto Frank
Kirshtrin Murray J. S.
Fiber Instrument Sales
Giglio David
Goins Davetta W.
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