Electronic fence transmitter for self-adjusting the receiving distance
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United States of America Patent
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Oct 24, 2006
Grant Date -
Feb 23, 2006
app pub date -
Aug 17, 2004
filing date -
Aug 17, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An electronic fence transmitter for self-adjusting the receiving distance is comprised of a fence wire buried in a yard, a voltage detector that is connected in series to the fence wire and a comparator for comparing the detected voltage of the voltage detector with a reference voltage. A voltage applied to the fence wire is automatically adjusted according to a signal inputted from the comparator and increasing gradually until a value of the detected voltage is larger than the value of the reference voltage. Accordingly, a distance for receiving the signal from the fence wire is set as constant without regard to an installation length or area of fence wire.
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