Patent US3594786A successfully refreshed from Google Patents.
US3594786A
Expired / Lapsed
US
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Electronic arrangement for simulating animal sounds
Assignee: SABA GmbH
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Filing: 1968-06-04
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Granted: 1971-07-20
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Expires: 1988-06-04
Abstract
Abstract An electronic arrangement for simulating sounds emitted by animals. A clock pulse generator transmits pulses which are partially differentiated and/or integrated. The resulting pulse signals are applied to a series of astable multivibrator circuits which synthesize audiofrequency signals representing the various types of animal cries. Multivibrator circuits may be combined with each other in a particular arrangement, and these combinations may be operated in conjunction with variable integrating and differentiating circuits to produce the desired results. Loud speakers powered by amplifiers emit in audible form the signals provided and processed by the multivibrators.
Inventors
- 👤 Hans G Brunner-Schwer
- 👤 Hansrichard Schulz
- 👤 Joachim Bulow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:22
CPC Classifications
A; A01; A01M; A01M29/00; A01M29/16; G; G09; G09B; G09B15/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
169 words
In a device for simulating animal sounds, a combination including pulse controlled signal generator means emitting signals within the frequency range of animal sounds, said signal generating means comprising a first multivibrator circuit, a second multivibrator circuit connected to said first multivibrator circuit and amplitude modulated by said first multivibrator circuit, and a third multivibrator circuit connected to said second multivibrator circuit for frequency modulating said second multivibrator circuit; clock pulse generator means connected to said signal generator means for controlling, by a train of pulses applied to said signal generator means, the frequency of repetition of the simulated animal sounds; integrating means connected to said pulse generator means for shaping the pulses applied to said signal generator means to cause the output of the latter to fall in frequency during the interval of each pulse from said pulse generator means; and variable integration means connected to said signal generator means for obtaining the desired frequency variation of the output of said signal generator means during each said interval.
Claim 2
Dependent Claim
169 words
In a device for simulating animal sounds, a combination including pulse controlled signal generator means emitting signals within the frequency range of animal sounds, said signal generating means comprising a first multivibrator circuit, a second multivibrator circuit connected to said first multivibrator circuit and amplitude modulated by said first multivibrator circuit, and a third multivibrator circuit connected to said second multivibrator circuit for frequency modulating said second multivibrator circuit; clock pulse generator means connected to said signal generator means for controlling, by a train of pulses applied to said signal generator means, the frequency of repetition of the simulated animal sounds; integrating means connected to said pulse generator means for shaping the pulses applied to said signal generator means to cause the output of the latter to fall in frequency during the interval of each pulse from said pulse generator means; and variable integration means connected to said signal generator means for obtaining the desired frequency variation of the output of said signal generator means during each said interval.
Claim 3
Dependent Claim
24 words
A combination as defined in claim 1, wherein said first multivibrator circuit and said second multivibrator each comprises a discrete said variable integration means.
Claim 4
Dependent Claim
125 words
In a device for simulating animal sounds, a combination including pulse controlled signal generator means emitting signals within the frequency range of animal sounds; clock pulse generator means connected to said signal generator means for controlling, by a train of pulses applied to said signal generator means, the frequency of repetition of the simulated animal sounds; multivibrator circuit means connected to said clock pulse generator means for emitting rectangular pulses; low pass filter means connected to said multivibrator circuit means and filtering the fundamental wave from said rectangular pulse signals; rectifier means connected to said low pass filter means for attenuating said fundamental wave; and band pass filter means connected to said rectifier means for passing a predetermined frequency spectrum to provide a predetermined timbre.
Claim 5
Dependent Claim
125 words
In a device for simulating animal sounds, a combination including pulse controlled signal generator means emitting signals within the frequency range of animal sounds; clock pulse generator means connected to said signal generator means for controlling, by a train of pulses applied to said signal generator means, the frequency of repetition of the simulated animal sounds; multivibrator circuit means connected to said clock pulse generator means for emitting rectangular pulses; low pass filter means connected to said multivibrator circuit means and filtering the fundamental wave from said rectangular pulse signals; rectifier means connected to said low pass filter means for attenuating said fundamental wave; and band pass filter means connected to said rectifier means for passing a predetermined frequency spectrum to provide a predetermined timbre.
Claim 6
Dependent Claim
85 words
A combination as defined in claim 3, wherein said multivibrator circuit means are connected to said clock pulse generator means and provide asymmetrical rectangular pulse signals, and said low pass filter means transmit only the attenuated fundamental wave of said asymmetrical pulse signals, said low pass filter means blocking the transmission of higher harmonic signal components in said asymmetrical pulse signals; and said band pass filter means are connected to said low pass filter means for providing a predetermined harmonic region and a predetermined timbre.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |