Method and apparatus for sending signals over an electric fence

Details Method and apparatus for sending signals over an electric fence Method and apparatus for sending signals over an electric fence

1997-10-09

2000-07-04

Zimmerman, Brian

Communications: electrical

Systems

Selsyn type

34082569, 34082556, 340564, 307109, H05C 104

Patent

active

060845058

ABSTRACT:
A method and apparatus for electronically controlling an electric fence energizer. The method is characterized by the step of sending a user selectable coded signal along an electric fence line to the electric fence energizer, said coded signal causing the state of the electric fence energizer to change. The coded signal may come in a variety of forms, and in one embodiment the coded signal may comprise a number of short pulses sent predetermined times apart. Other types of signals may be sent with variations in amplitude or other differentiating characteristics. A coded signal that varies in the time domain is preferred due to signal attenuation. According to a preferred aspect of the present invention, a signalling device for interaction with a fence system is provided. The device has a power supply, signal producing means, and control means for the signal producing means. In operation, the power supply can provide power to the signal producing means, which is controlled by the control means to send a coded signal along the fence system. The preferred embodiment for the signal producing means is a capacitor, for the power supply, a battery, and for the control means a programmed microprocessor.

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patent: 5420885 (1995-05-01), May
patent: 5514919 (1996-05-01), Walley
patent: 5550530 (1996-08-01), Hamm
patent: 5651025 (1997-07-01), May
patent: 5790023 (1998-08-01), Wolfgram

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