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System for controlling the movement of an animal

  • US 4,967,695 A
  • Filed: 06/23/1989
  • Issued: 11/06/1990
  • Est. Priority Date: 06/23/1989
  • Status: Expired due to Term
First Claim
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1. A system for controlling the movement of an animal relative to an area comprising a signal transmitter having a transmitting antenna associated with said area for producing a signal and an electronic receiver carried by the animal responsive to the signal for producing a control output to the animal, said electronic receiver including:

  • (a) at least first and second receiving antennas for receiving the signal produced by the signal transmitter, each receiving antenna having a different orientation relative to the other receiving antenna for receiving a respective component of the signal;

    (b) selection circuitry for selecting which of the respective components has greater magnitude and for producing an actuating output identifying the respective component having greater magnitude;

    (c) switch circuitry connected with the first receiving antenna for receiving the respective component of the signal received by the first receiving antenna and connected with the second receiving antenna for receiving the respective component of the signal received by the second receiving antenna, the switch circuitry being responsive to the actuating output from the selection circuitry for transmitting as an output the respective component having greater magnitude; and

    (d) control circuitry responsive to the output from the switch circuitry for producing the control output to the animal.

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