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Route examining system and method

  • US 10,006,877 B2
  • Filed: 08/20/2014
  • Issued: 06/26/2018
  • Est. Priority Date: 08/20/2014
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a coded test signal transmission system configured to transmit a unique coded test signal along a route, wherein the unique coded test signal comprises a spread spectrum chirping coded signal, wherein the coded test signal transmission system is configured to switch the spread spectrum chirping coded signal between on and off states, and wherein the coded test signal transmission system is configured to change the spread spectrum chirping coded signal each time the coded test signal transmission system switches the spread spectrum chirping coded signal to the on state; and

    a coded test signal receiving system configured to receive the unique coded test signal along the route,wherein the unique coded test signal received by the coded test signal receiving system is used to determine one or more characteristics of the route,wherein the coded test signal transmission system is configured to transmit the unique coded test signal over at least two frequencies during a period of time, and wherein the coded test signal receiving system is configured to store coded data that is compared to the unique coded test signal received by the coded test signal receiving system.

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