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Remote marking

  • US 9,368,245 B2
  • Filed: 12/04/2013
  • Issued: 06/14/2016
  • Est. Priority Date: 05/18/2011
  • Status: Active Grant
First Claim
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1. A remote marking system comprising:

  • at least one marker unit;

    at least one target region; and

    at least one concentrator,wherein said marker unit comprises at least one emitter configured to emit at least one low intensity tracer signal,wherein said target region comprises at least one receiving medium configured to change its state upon reception of a high intensity tracer signal thereby recording the position at which said high intensity tracer signal is received,wherein said concentrator is configured to transform a low intensity tracer signal to a high intensity tracer signal, andwherein said marker unit comprises an extended emitter operable to emit a low intensity tracer signal over an extended region and said concentrator is configured to focus said low intensity signal such that it is incident upon a concentrated region of said receiving medium.

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