Patent US3748367A successfully refreshed from Google Patents.
US3748367A
Expired / Lapsed
US
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Percussive musical instrument with transducer for actuating an electronic tone generator
Assignee: Individual
•
Filing: 1971-10-21
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Granted: 1973-07-24
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Expires: 1991-10-21
Abstract
Abstract A microphone is positioned adjacent a playing member capable of being struck with drum sticks, foot-operated beaters, or the like. The electric output of the microphone, in response to such striking, is rectified and added to the electric potential supplied to an electronic audio tone generator, to activate the latter and produce a desired tone. The generated tone is amplified and fed to an audio speaker, headphone, recording instrument, or other audio output device.
Inventors
- 👤 S Lamme
- 👤 T Holce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:30
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/0535; G10H2230/00; G10H2230/045; G10H2230/251; G10H2230/275; Y; Y10; Y10S; Y10S84/00; Y10S84/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
137 words
An electronic percussive musical instrument, comprising a. a playing member having a playing surface to be struck by a playing implement, b. transducer means located adjacent the playing member and responsive to the percussive effect from the striking of the playing member with a playing implement to produce an electric alternating current output signal, c. an electronic audio tone generator having an electric audio signal output, d. a source of electric potential for the tone generator, e. rectifier means connecting the output of the transducer means to the tone generator for rectifying the alternating current output signal of the transducer means and supplying the rectified signal to the tone generator to activate the latter, and f. audio amplifier means connected to the output of the tone generator for amplifying the electric audio signal output of the latter.
Claim 2
Dependent Claim
137 words
An electronic percussive musical instrument, comprising a. a playing member having a playing surface to be struck by a playing implement, b. transducer means located adjacent the playing member and responsive to the percussive effect from the striking of the playing member with a playing implement to produce an electric alternating current output signal, c. an electronic audio tone generator having an electric audio signal output, d. a source of electric potential for the tone generator, e. rectifier means connecting the output of the transducer means to the tone generator for rectifying the alternating current output signal of the transducer means and supplying the rectified signal to the tone generator to activate the latter, and f. audio amplifier means connected to the output of the tone generator for amplifying the electric audio signal output of the latter.
Claim 3
Dependent Claim
17 words
The electronic percussive musical instrument of claim 1 wherein the playing member comprises a substantially rigid plate.
Claim 4
Dependent Claim
24 words
The electronic percussive musical instrument of claim 1 wherein the playing member comprises a substantially rigid plate supporting a playing surface of resilient material.
Claim 5
Dependent Claim
27 words
The electronic percussive musical instrument of claim 1 wherein the transducer means is a microphone located on the side of the playing member opposite the striking surface.
Claim 6
Dependent Claim
26 words
The electronic percussive musical instrument of claim 1 wherein the playing member is circular in shape and the transducer means comprises a microphone of rectangular shape.
Claim 7
Dependent Claim
22 words
The electronic percussive musical instrument of claim 1 wherein the source of electric potential is connected in series with said rectifier means.
Claim 8
Dependent Claim
34 words
The electronic percussive musical instrument of claim 1 wherein the source of electric potential includes potential adjusting means for varying the potential to the tone generator to various levels below activation of the generator.
Claim 9
Dependent Claim
76 words
The electronic percussive musical instrument of claim 1 wherein a. the playing member comprises a substantially rigid plate, b. the transducer means is located on the side of the playing member opposite the striking surface, c. the source of electric potential is connected in series with said rectifier means, and d. the source of electric potential includes potential adjusting means for varying the potential of the tone generator to various levels below activation of the generator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |