Patent US4704931A successfully refreshed from Google Patents.
US4704931A
Expired / Lapsed
US
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Acoustic tone inhibiting means for keyboard musical instrument
Assignee: Nippon Gakki Co Ltd
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Filing: 1986-06-16
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Granted: 1987-11-10
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Expires: 2006-06-16
Abstract
Abstract A keyboard musical instrument includes: a keyboard; an acoustic musical tone production mechanism for generating an acoustic musical tone; a tone generator for generating an electronic musical tone; a solenoid driver for inhibiting generation of the acoustic musical tone from the acoustic musical tone production mechanism; and an operation panel for designating a musical tone to be inhibited. When a player designates a musical tone to be inhibited via the operation panel in advance and then depresses a key on the keyboard, the generation of the acoustic musical tone is inhibited by means of the solenoid driver.
Inventors
- 👤 Yohei Nagai
- 👤 Yoshimasa Isozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:11
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/22; G10C; G10C5/00; G10C5/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A keyboard musical instrument comprising: a keyboard having a plurality of keys; acoustic musical tone generating means for generating an acoustic musical tone by using a mechanical mechanism upon operation of a key; electronic musical tone generating means for generating an electronic musical tone upon operation of a key; tone designating means for designating a musical tone to be inhibited; and acoustic tone inhibiting means for automatically inhibiting generation of said acoustic musical tone from said acoustic musical tone generating means when said designated musical tone is said acoustic musical tone.
Claim 2
Dependent Claim
91 words
A keyboard musical instrument comprising: a keyboard having a plurality of keys; acoustic musical tone generating means for generating an acoustic musical tone by using a mechanical mechanism upon operation of a key; electronic musical tone generating means for generating an electronic musical tone upon operation of a key; tone designating means for designating a musical tone to be inhibited; and acoustic tone inhibiting means for automatically inhibiting generation of said acoustic musical tone from said acoustic musical tone generating means when said designated musical tone is said acoustic musical tone.
Claim 3
Dependent Claim
17 words
A keyboard musical instrument according to claim 1, wherein said acoustic musical tone is a piano tone.
Claim 4
Dependent Claim
47 words
A keyboard musical instrument according to claim 1, wherein said tone designating means includes range designating means for designating a key range to be inhibited, said acoustic tone inhibiting means inhibiting generation of an acoustic tone belonging to said designated key range of said designated musical tone.
Claim 5
Dependent Claim
56 words
A keyboard musical instrument according to claim 1, further comprising split point designating means for designating a split point of a key range, said key range being determined based on said designated split point, said acoustic tone inhibiting means inhibiting generation of an acoustic tone belonging to said determined key range of said designated musical tone.
References Cited (Backward Citations)
US2250065A
Cited
US2933004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-09 | 1991-05-11 | 1991-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-09 | 1995-05-11 | 1995-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-09 | 1999-05-11 | 1999-11-10 | $7700.00 | Window Closed / Lapsed |