US3840690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument with single keyboard providing sounds and effects
Assignee: Individual
•
Filing: 1973-04-11
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Granted: 1974-10-08
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Expires: 1993-04-11
Abstract
Abstract An electronic sound oscillator comprising at least one electronic note generator connected to a variable frequency control means, said note oscillator being connected to the input of a frequency divider circuit having as many outputs as the octaves to be provided for each of the notes generated by said generator, and pushbutton-type electrical contact devices to connect each of the outputs associated with the several octaves of the frequency divider circuit to at least one sound amplifying and reproducing circuit, said electrical contact devices being aligned with one another for operation by one hand of a musical performer.
Inventors
- 👤 A Davoli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/06; G10H1/08; G10H5/00; G10H5/02; G10H5/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
An electronic sound generator comprising at least one electronic note oscillator; a first portion of a keyboard connected to said oscillator to control by means of a first hand of a musical performer the frequency of the oscillator, said oscillator being connected also to the input of a frequency divider circuit having at least as many outputs as the octaves to be provided for the notes generated by said generator, and a plurality of push-type electrical contact means arranged as a second portion of a keyboard and each for connecting the respective output corresponding to one of the several octaves of the frequency divider circuit to at least one sound amplifying and reproducing circuit, said second portion of keyboard being arranged for operation by a second hand of the musical performer and being in alignment with said first portion of keyboard.
Claim 2
Dependent Claim
141 words
An electronic sound generator comprising at least one electronic note oscillator; a first portion of a keyboard connected to said oscillator to control by means of a first hand of a musical performer the frequency of the oscillator, said oscillator being connected also to the input of a frequency divider circuit having at least as many outputs as the octaves to be provided for the notes generated by said generator, and a plurality of push-type electrical contact means arranged as a second portion of a keyboard and each for connecting the respective output corresponding to one of the several octaves of the frequency divider circuit to at least one sound amplifying and reproducing circuit, said second portion of keyboard being arranged for operation by a second hand of the musical performer and being in alignment with said first portion of keyboard.
Claim 3
Dependent Claim
41 words
An electronic generator as claimed in claim 1 and provided with a set of electrical switch means each of which is connectd in parallel with a respective one of said electrical contacts means and operable for inserting the respective octaves continuously.
Claim 4
Dependent Claim
26 words
An electronic sound generator as claimed in claim 1 and wherein said electrical contact means comprise keys of a portion of an organ-piano type of keyboard.
Claim 5
Dependent Claim
60 words
An electronic sound generator as claimed in claim 1 and further comprising devices connected to said oscillator and operable to provide particular sound effects, and wherein each of said devices sound effect is actuatable respectively by one of a plurality of further electrical contact means aligned with one another for operation by means of one hand of a musical performer.
Claim 6
Dependent Claim
40 words
An electronic sound generator as claimed in claim 4 and wherein said keyboard is an organ-piano type of keyboard and said further electrical contact means for the particular sound effects are operable by keys of said second portion of keyboard.
Claim 7
Dependent Claim
41 words
An electronic sound generator as claimed in claim 4 and further comprising a plurality of electrical switch means each connected in parallel with a respective one of said further electrical contact means and operable for producing said particular sound effects continuously.
Claim 8
Dependent Claim
91 words
An electronic sound generator as claimed in claim 1 and further comprising means connected to said oscillator and operable for providing particular sound effects, additional electrical contact means for actuating said sound effect means, and wherein said first and second portions of keyboard comprise an organ-piano type of keyboard including means whereby a first color of the keys of said second portion is arranged for operating said push-type electrical contact means and a second color of the key of said second portion is arranged for operating said additional electrical contact means.
Claim 9
Dependent Claim
31 words
An electronic sound generator as claimed in claim 1 and comprising two or more electronic note oscillators having means for enabling tuning in unison, in harmony, and in other frequency combinations.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-07 | 1978-04-08 | 1978-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-07 | 1982-04-08 | 1982-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-07 | 1986-04-08 | 1986-10-08 | $7700.00 | Window Closed / Lapsed |