Optical waveguides – Optical waveguide sensor – Including physical deformation or movement of waveguide
Reexamination Certificate
2006-10-17
2006-10-17
Pak, Sung (Department: 2874)
Optical waveguides
Optical waveguide sensor
Including physical deformation or movement of waveguide
C385S012000, C340S541000, C340S551000, C356S073100, C356S515000
Reexamination Certificate
active
07123785
ABSTRACT:
A security system is described that includes an optical fiber net woven from an optical fiber wire. A light generator introduces an incident light signal into the optical fiber wire. A light receiver receives an exigent light signal from the optical fiber wire. An optical sensor wire is connected to the optical fiber net and is displaced when a force is applied to the optical fiber net. The optical sensor wire receives a patterned incident light signal that is altered upon application of the force applied to the optical fiber net, thereby producing an altered patterned exigent light signal. The light receiver initiates an alarm either (1) if the exigent light signal from the optical fiber wire terminates, or (2) after comparing the exigent patterned light signal with the incident patterned light signal in the optical sensor wire and establishing a deviation, if the deviation exceeds a predetermined threshold.
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WWW.MATIMOP.ORG, “D-Fence Electronic Fencing & Security Systems Ltd. Profile of R&D,” www.matimop.org (Tel Aviv, Israel), p. 2, (Nov. 21, 2003).
Pak Sung
Pillsbury Winthrop Shaw & Pittman LLP
Stein James D.
LandOfFree
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