Electronic animal control system transmitter with variable phase

Details Electronic animal control system transmitter with variable phase Electronic animal control system transmitter with variable phase

1996-05-30

1999-02-16

Hilten, John S.

Animal husbandry

Animal controlling or handling

Electromagnetic remote control

119720, 119859, H01K 1504

Patent

active

058709738

ABSTRACT:
A transmitter for an electronic animal control system of the type employing a boundary wire antenna for radiating a predetermined radio frequency signal, is provided with phase detection circuitry for detecting a phase difference between the applied radio frequency signal and the electrical current within the antenna. Phase control circuitry is provided for adjusting the phase of the voltage with respect to the current in response to detecting a phase difference.

REFERENCES:
patent: 3753421 (1973-08-01), Peck
patent: 3794941 (1974-02-01), Templin
patent: 3835379 (1974-09-01), Templin
patent: 4967695 (1990-11-01), Giunta
patent: 5053768 (1991-10-01), Dix
patent: 5425330 (1995-06-01), Touchton et al.
patent: 5435271 (1995-07-01), Touchton et al.
patent: 5445900 (1995-08-01), Miller et al.
patent: 5476729 (1995-12-01), Miller et al.
patent: 5533469 (1996-07-01), Touchton et al.

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