Portable animal control unit

Details Portable animal control unit Portable animal control unit

1986-05-02

1987-08-25

Buczinski, Stephen C.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

367137, H04B 102

Patent

active

046897763

ABSTRACT:
A portable animal control unit includes circuitry incorporated in a miniature housing for generating an animal influencing modulated soundwave in the ultrasonic frequency range. A first oscillator produces an output signal for driving an ultrasonic transducer, the output signal having a center frequency in the ultrasonic range. A second oscillator produces an output control signal for modulating the frequency of the first oscillator, the modulation rate being determined by the center frequency of the second oscillator output signal and the amount of deviation of the second oscillator from the center frequency.

REFERENCES:
patent: 3683113 (1972-08-01), Stewart
patent: 3838418 (1974-09-01), Brown
patent: 4484316 (1984-11-01), Nakagawa
patent: 4566085 (1986-01-01), Weinberg

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