Apparatus and method for using a counter-propagating signal method for locating events
CA 2593628 C · Owner: Mcintosh, Lee J. · Inventors: Mcintosh, Lee J.; Katsifolis, Jim
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An apparatus and method for using a counter-propagating signal method for locating events is disclosed. The apparatus and method uses a Mach Zehnder interferometer through which counter-propagating signals can be launched. If the sensing zone of the Mach Zehnder interferometer is disturbed modified , counter-propagating signals are produced and the time difference between receipt of those signals is used to determine the location of the event. Polarisation controllers (43, 44) receive feedback signals so that the polarisation states of the counter-propagating signals can be controlled to match the amplitude and/or phase of the signals. Detectors are provided for detecting the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
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- Filed December 15, 2005 and granted June 16, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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