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Recovery system with repeating communication capabilities

  • US 10,286,874 B2
  • Filed: 02/01/2017
  • Issued: 05/14/2019
  • Est. Priority Date: 09/19/2005
  • Status: Active Grant
First Claim
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1. A recovery method comprising:

  • transmitting a first activation message to a vehicle location unit and to a first remote transmitting unit, the first activation message including a first code representing a vehicle location unit identifier;

    receiving the first activation message at the first remote transmitting unit but not at the vehicle locating unit;

    processing the first activation message to generate a second activation message;

    transmitting the second activation message to the vehicle location unit and to a second remote transmitting unit, the second activation message including the first code representing a vehicle location unit identifier;

    receiving the second activation message at a second remote transmitting unit but not at the vehicle locating unit;

    processing the second activation message to generate a third activation message; and

    transmitting the third activation message to the vehicle location unit and to a third remote transmitting unit, the third activation message including the first code representing a vehicle location unit identifier.

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