Animal husbandry – Animal controlling or handling – Electromagnetic remote control
Patent
1997-02-03
1998-06-23
Swiatek, Robert P.
Animal husbandry
Animal controlling or handling
Electromagnetic remote control
119908, 340573, A01K 300, A01K 2700
Patent
active
057690324
ABSTRACT:
A confinement system for animals operates by transmitting a first predetermined spread spectrum modulated signal to a receiver mounted on an animal's collar. The spread spectrum modulated signal is despread demodulated. The data on the signal is removed and deciphered by the receiver to determine if the received signal is the correct discrete spread spectrum modulated signal. If the demodulated and reference signals are similar, then the signal strength of the first signal is used to determine whether the animal is close to a boundary area. If the spread spectrum modulated and reference signals are not similar, the first signal is ignored.
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