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System and method for detecting and controlling transmission devices

  • US 9,900,760 B1
  • Filed: 04/20/2015
  • Issued: 02/20/2018
  • Est. Priority Date: 07/14/2005
  • Status: Active Grant
First Claim
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1. A device for determining operation of each of a plurality of wireless transmission devices, said device comprising:

  • a processor configured to;

    receive, from at least one base state covering an area, information regarding each of said plurality of wireless transmission devices within said area, said wireless transmission devices being in one of an active state and a stand-by state;

    establish a schedule based on a number of said plurality of wireless transmission devices, with respect to an interrogation signal, wherein each of the plurality of wireless transmission devices is assigned a response window a corresponding known time after said interrogation signal;

    provide said interrogation signal to each of said plurality of wireless transmission devices;

    receive transmissions from each of the plurality of wireless transmission devices during a corresponding one of said assigned response windows;

    determine an allowability of a corresponding one of the plurality of wireless transmission devices based at least on an identification of said corresponding one of said plurality of wireless transmission device, said allowability being one of authorized and unauthorized;

    identify corresponding ones of said plurality of wireless transmission devices as being unauthorized; and

    cause said corresponding ones of said wireless transmission devices identified as being unauthorized to be denied further communication.

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