Patent US4356751A successfully refreshed from Google Patents.
US4356751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument
Assignee: Nippon Gakki Co Ltd
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Filing: 1980-05-14
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Granted: 1982-11-02
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Expires: 2000-05-14
Abstract
Abstract An electronic musical instrument comprises a musical tone production circuit responsive to a depressed key among a plurality of keys, and a control circuit for controlling tone production manner which includes a plurality of manually operated members mounted on a control panel for setting parameters that determine the tone production manner. There is also provided presetting means for presetting some of the parameters. At an initial state after the instrument is powered from a power source, the preset parameters dominate the corresponding ones of the manually set parameters, while the preset parameters can be replaced by the manually set parameters at a choice of a player after powering.
Inventors
- 👤 Naoyuki Niinomi
- 👤 Kunihiko Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:04
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/24
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
138 words
An electronic musical instrument comprising: a power source for supplying power to said instrument; a keyboard having a plurality of keys; means for controlling manners of tone production; and means coupled to said control means for forming a musical tone corresponding to a depressed key; said control means including: a plurality of manually operated members for manually setting parameters that determine said manners and mounted on a control panel; means for presetting one or more of said parameters; means for automatically coupling, at the time said power source is turned on, said preset parameters to said musical tone forming means irrespective of said manually operated members and; means for substituting said manually set parameters for said preset parameters to be coupled to said musical tone forming means at a time after said turn-on time of said power source.
Claim 2
Dependent Claim
138 words
An electronic musical instrument comprising: a power source for supplying power to said instrument; a keyboard having a plurality of keys; means for controlling manners of tone production; and means coupled to said control means for forming a musical tone corresponding to a depressed key; said control means including: a plurality of manually operated members for manually setting parameters that determine said manners and mounted on a control panel; means for presetting one or more of said parameters; means for automatically coupling, at the time said power source is turned on, said preset parameters to said musical tone forming means irrespective of said manually operated members and; means for substituting said manually set parameters for said preset parameters to be coupled to said musical tone forming means at a time after said turn-on time of said power source.
Claim 3
Dependent Claim
100 words
An electronic musical instrument according to claim 1 wherein said preset parameters coupling means and said manually set parameters substituting means comprise: a transfer switch interposed between said presetting means and said manually setting means; a preset parameters release switch; and coupling control means which causes said transfer switch to couple said presetting means to said musical tone forming means at said turn-on time of said power source and to couple said manually setting means to said musical tone forming means in accordance with an operation of said preset parameters releasing switch after said turn-on time of said power source.
Claim 4
Dependent Claim
121 words
An electronic musical instrument according to claim 2 wherein said coupling control means comprises: a memory means which stores a first operation of said preset release switch after said turn-on time of said power source; means for causing said memory means to couple said manually setting means to said musical tone forming means via said transfer switch in response to an output from said memory means caused by said operation, said memory means storing a second operation of said preset release switch; and means for causing said memory means to couple said presetting means to said musical tone forming means via said transfer switch in response to an output of said memory means outputted therefrom in response to said second operation.
Claim 5
Dependent Claim
20 words
An electronic musical instrument according to claim 1 wherein said control panel includes means for normally concealing said operating members.
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) | 1985-11-01 | 1986-05-03 | 1986-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-01 | 1990-05-03 | 1990-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-01 | 1994-05-03 | 1994-11-02 | $7700.00 | Window Closed / Lapsed |