Audio signal generator

Details Audio signal generator Audio signal generator

1984-06-20

1988-01-12

Caldwell, Sr., John W.

Communications: electrical

Audible indication

Ultrasonic pest control

G08B 300

Patent

active

047194529

ABSTRACT:
Audio frequency signal generator to generate signals in a selected band of audio frequencies to generate a noise having an amplitude pattern which simulates the noise generated by a selected occurrence which can be utilized for setting the actuation range of an audio actuated alarm device which is capable of discriminating the noise generated by such an occurrence where the generated frequency of the sound and amplitude of the sound waves can be varied selectively to simulate the pattern of the sound waves emanating from the selected occurrence.

REFERENCES:
patent: 3483479 (1969-11-01), Harshbarger
patent: 3609579 (1971-09-01), Chappell et al.
patent: 4104628 (1978-08-01), Sweany et al.
patent: 4186387 (1980-01-01), Moschgat
patent: 4293851 (1981-10-01), Beyl, Jr.

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