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Transponder control of animal whereabouts

  • US 5,241,923 A
  • Filed: 07/23/1992
  • Issued: 09/07/1993
  • Est. Priority Date: 07/23/1992
  • Status: Expired due to Term
First Claim
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1. A system for controlling the whereabouts of an animal, said system comprising:

  • (a) at least one transponder operable to receive a first signal and, in response to receiving said first signal, to transmit a second signal distinguishable from said first signal, said at least one transponder being positionable to define the location of a boundary for the animal;

    (b) a transmitter for transmitting said first signal;

    (c) a receiver for receiving said second signal and for detecting a condition of said second signal indicating proximity of the animal to said boundary; and

    (d) a stimulator responsive to said receiver for administering to the animal, in response to said detecting of said condition, at least one stimulus for deterring the animal from traversing said boundary in order to control the whereabouts of the animal.

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