US4480519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical instrument with improved keyboard
Assignee: ARELLANO YOLANDA M 815 BERNARD ST ALEXANDRIA VIRGINIA 22314
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Filing: 1982-09-30
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Granted: 1984-11-06
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Expires: 2002-09-30
Abstract
Abstract An improved keyboard for a musical instrument includes a plurality of keys arranged in a side-by-side order, all lying in a common plane. Different embodiments of the invention have a varying number of keys per octave, from as small as 12 keys per octave to as high as 90-120 keys per octave. In those embodiments of the invention in which the number of keys per octave results in a key whose width is too narrow to be uniquely depressed by an operator's finger, associated apparatus determines from a plurality of keys which have been depressed, a particular tone to be produced. The keyboard may be associated with apparatus to distinguish one set of keys from other sets of keys, which apparatus can include a selectively energizable light source associated with each different key or other equivalent apparatus.
Inventors
- 👤 Maria R. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:03
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/38; G10H1/18; G10H1/22; G10H2210/00; G10H2210/395; G10H2210/401; Y; Y10; Y10S; Y10S84/00; Y10S84/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
98 words
An improved sound selection device for a musical instrument including a keyboard and comprising: a plurality of keys, all said keys with an upper surface lying in a plane, of equal length and arranged parallel to one another, different keys corresponding to and selecting different sounds for production, groups of said keys corresponding to different octaves, each of said groups including an identical number of keys, said number significantly greater than 12; command means responsive to simultaneous selection of a plurality of contiguous keys for commanding production of a single sound selected in relation to said contiguous keys.
Claim 2
Dependent Claim
98 words
An improved sound selection device for a musical instrument including a keyboard and comprising: a plurality of keys, all said keys with an upper surface lying in a plane, of equal length and arranged parallel to one another, different keys corresponding to and selecting different sounds for production, groups of said keys corresponding to different octaves, each of said groups including an identical number of keys, said number significantly greater than 12; command means responsive to simultaneous selection of a plurality of contiguous keys for commanding production of a single sound selected in relation to said contiguous keys.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 wherein said keys are of equal width and said number is about 48 or greater.
Claim 4
Dependent Claim
74 words
The apparatus of claim 1 or 2 in which said command means includes a mode dependent translation table correlating keys and sounds, said table including at least one mode in which each key corresponds to a unique sound and at least one other mode in which a plurality of keys correspond to an identical sound; operator actuated mode selection means to enable a selected one of said modes of said mode dependent translation table.
Claim 5
Dependent Claim
39 words
The apparatus of claim 3 in which at least one mode in said translation table a mode in which there are plural zones per octave, wherein a key selection of any key in a zone producing an equal sound.
Claim 6
Dependent Claim
42 words
The apparatus of claim 4 in which said keyboard means includes distinguishing means for selectively distinguishing a key from other keys, and in which said distinguishing means is responsive to said operator actuated mode selection means to distinguish keys in a zone.
Claim 7
Dependent Claim
113 words
An improved musical instrument comprising keyboard means for selection of sounds and sound producing means for producing sounds in accordance with selections from said keyboard means, in which said keyboard means comprises: a plurality of keys, all said keys with an upper surface lying in a plane, of equal length and arranged parallel to one another, different keys corresponding to different sounds, groups of said keys corresponding to different octaves, each of said groups including an identical number of keys, said number significantly larger than 12; and command means responsive to simultaneous activation of a plurality of contiguous keys for commanding production of a single sound selected in relation to said contiguous keys.
Claim 8
Dependent Claim
113 words
An improved musical instrument comprising keyboard means for selection of sounds and sound producing means for producing sounds in accordance with selections from said keyboard means, in which said keyboard means comprises: a plurality of keys, all said keys with an upper surface lying in a plane, of equal length and arranged parallel to one another, different keys corresponding to different sounds, groups of said keys corresponding to different octaves, each of said groups including an identical number of keys, said number significantly larger than 12; and command means responsive to simultaneous activation of a plurality of contiguous keys for commanding production of a single sound selected in relation to said contiguous keys.
Claim 9
Dependent Claim
19 words
The device of claim 6 wherein said keys are of equal width and said number is at least 48.
Claim 10
Dependent Claim
74 words
The apparatus of claim 6 or 7 in which said command means includes a mode dependent translation table correlating keys and sounds, said table including at least one mode in which each key corresponds to a unique sound and at least one other mode in which a plurality of keys correspond to an identical sound; operator actuated mode selection means to enable a selected one of said modes of said mode dependent translation table.
Claim 11
Dependent Claim
38 words
The apparatus of claim 8 in which at least one mode in said translation table establishes a mode in which there are plural zones per octave, wherein selection of any key in a zone produces an equal sound.
Claim 12
Dependent Claim
35 words
The apparatus of claim 9 in which said keyboard means includes distinguishing means for selectively distinguishing a key from other keys, and in which said distinguishing means is responsive to said operator actuated mode selection.
References Cited (Backward Citations)
US1685401A
Cited
US2456575A
Cited
US2706926A
Cited
US3200689A
Cited
US3943811A
Cited
US4048893A
Cited
US3986422A
Cited
US4009633A
Cited
US4098162A
Cited
US4100831A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-06 | 1988-05-07 | 1988-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-06 | 1992-05-07 | 1992-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-06 | 1996-05-07 | 1996-11-06 | $7700.00 | Window Closed / Lapsed |