Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
October 24, 2006
0Patent Application Number
109206770
Date Filed
August 17, 2004
0Patent Primary Examiner
Patent 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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