Range triggered animal training system

Details Range triggered animal training system Range triggered animal training system

1975-05-16

1976-09-14

Farley, Richard A.

Animal husbandry

Bed or rest

340 1R, 340 3E, A01K 1500

Patent

active

039800512

ABSTRACT:
A system for teaching a pet, such as a dog, not to wander beyond a predetermined distance includes a dog whistle triggered by an ultrasonic ranging system. An ultrasonic pulse transmitter worn by the master produces a repetitive signal at a first superaudible frequency which is repeated by an ultrasonic transponder worn by the pet. This second frequency is received at the master. The pulse width is chosen to correspond to the time for sound to travel the predetermined distance in a round trip between the master and pet. If no pulse is received at the trailing edge of the transmitter pulse, a third frequency, in the nature of a dog whistle is transmitted from the master to signal the pet to return and to provide a homing signal therefor.

REFERENCES:
patent: 3336530 (1967-08-01), Sloan et al.
patent: 3608524 (1971-09-01), Waltz
patent: 3753421 (1973-08-01), Peck
patent: 3823691 (1974-07-01), Morgan

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