Tri-tronics, Inc.

Robert D Rozanski

Timothy T Duncan

Steven R Fister

Robert E Slater

Ralph L Pelton

Rodney J Morris

An animal is trained using a remote transmitter and a collar-mounted receiver carried by the animal by selecting one of a plurality of desired stimulus levels by a stimulus level control of the transmitter. Information representative of the selected desired stimulus level is transmitted to the receiver and demodulated to produce a digital signal representative of the selected stimulus level. A microprocessor in the receiver operates to generate as an output a first stream of pulses of constant duration at a frequency representative of the selected stimulus level. The first stream of output pulses is filtered to produce a second stream of pulses the widths of which are representative of the selected stimulus level. The second stream of pulses is applied to the control electrode of a switch coupled in series with a primary winding of an output transformer of the receiver to repetitively turn the switch on for durations equal to the width of the pulse of the second stream and causes the amplitude of voltage pulses produced between contact electrodes connected to terminals of the secondary winding of the output transformer to be representative of the selected stimulus level.

Remote controlled animal training system

A leash training device includes a leash cord (3) and a stimulus collar (4,6) coupled to an end of the leash cord. The stimulus collar includes a strap (4) adapted to fit around the neck of an animal to be trained or controlled, and an electrical stimulus unit (6) supported by the strap. The electrical stimulus unit (6) includes a stimulus circuit (16). A transformer (17) coupled between the stimulus circuit (16) and a pair of electrodes (5) for contacting skin of the animal. A measurement device (101) is coupled to the leash cord to measure tension in the leash cord and produce a control signal (106) when the tension exceeds a predetermined threshold. The stimulus circuit (16) produces a drive signal in response to the control signal and applies the drive signal to a primary winding of the transformer (17). The measurement device (101) includes a first connector (103) connected to the second end of the leash cord (3) and to a first end of a spring (34) having a second end coupled in a fixed relationship to a second connector (102) so that the spring (34) resists movement of the second connector (102) relative to the first connector (103).

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Tucson, AZ, United States of America

Robert D Rozanski