US3835237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument with key-dependent time-variable delaying device
Assignee: Nippon Gakki Co Ltd
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Filing: 1973-09-17
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Granted: 1974-09-10
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Expires: 1993-09-17
Abstract
Abstract An electronic musical instrument includes in a tone signal path a signal delaying device constituted by a bucket brigade device to which is supplied transfer clock pulses which determine of the delay time. A keyboard is provided with a control voltage generator generating a control voltage representing the depressed key or keys. The control voltage is supplied to the clock pulse generator for determining the frequency of the transfer clock pulses generated thereby.
Inventors
- 👤 T Adachi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:01
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043; G10H2210/00; G10H2210/155; G10H2210/195; G10H2210/201; G10H2210/211; G10H2250/00; G10H2250/041
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
184 words
An electronic musical instrument comprising: tone signal generators producing tone signals; a keyboard device connected to said tone generators and selectively delivering keyed tone signals corresponding to the keys of the keyboard device which are depressed; means for convErting said keyed tone signals from the keyboard device into musical tone signals having prescribed tone colors; a signal delaying device coupled to an output of said converting means for delaying said musical tone signals received from said converting means; a control voltage generator associated with said keyboard device and generating a control voltage representative of which of said keys of said keyboard device are depressed; a transfer clock pulse generator of the voltage controlled type coupled to the output of said control voltage generator, said clock pulse generator generating transfer clock pulses the frequency of which is a function of the control voltage generated by said control voltage generator; and means coupling the output of said transfer clock pulse generator to said signal delaying device, the delay time of said signal delaying device being determined by the frequency of said transfer clock pulses supplied thereto.
Claim 2
Dependent Claim
184 words
An electronic musical instrument comprising: tone signal generators producing tone signals; a keyboard device connected to said tone generators and selectively delivering keyed tone signals corresponding to the keys of the keyboard device which are depressed; means for convErting said keyed tone signals from the keyboard device into musical tone signals having prescribed tone colors; a signal delaying device coupled to an output of said converting means for delaying said musical tone signals received from said converting means; a control voltage generator associated with said keyboard device and generating a control voltage representative of which of said keys of said keyboard device are depressed; a transfer clock pulse generator of the voltage controlled type coupled to the output of said control voltage generator, said clock pulse generator generating transfer clock pulses the frequency of which is a function of the control voltage generated by said control voltage generator; and means coupling the output of said transfer clock pulse generator to said signal delaying device, the delay time of said signal delaying device being determined by the frequency of said transfer clock pulses supplied thereto.
Claim 3
Dependent Claim
46 words
An electronic musical instrument according to claim 1 which further includes a second voltage controlled oscillator supplied with said control voltage, the output of said second voltage controlled oscillator being coupled to said transfer clock pulse generator to vary the frequency of said transfer clock pulses.
Claim 4
Dependent Claim
18 words
An electronic musical instrument according to claim 1 wherein said signal delaying device comprises a bucket brigade device.
Claim 5
Dependent Claim
182 words
An electronic musical instrument comprising: tone generators producing tone signals; first and second keyboard devices for selectively delivering keyed tone signals corresponding to the keys which are depressed; means for converting keyed output tone signals from said first and second keyboard devices into musical tone signals having prescribed tone colors; at least one signal delaying device coupled to an output of said converting means for delaying said musical tone signals received from said converting means; a control voltage generator associated with said keyboard devices and generating a control voltage representative of which of said keys of said keyboard devices are depressed; a transfer clock pulse generator of the voltage controlled type coupled to the output of said control voltage generator, said transfer clock pulse generator generating transfer clock pulses the frequency of which is a function of the control voltage generated by said control voltage generator; and means coupling the output of said transfer clock pulse generator to said signal delaying device, the delay time of said signal delaying device being determined by the frequency of said transfer clock pulses supplied thereto.
Claim 6
Dependent Claim
182 words
An electronic musical instrument comprising: tone generators producing tone signals; first and second keyboard devices for selectively delivering keyed tone signals corresponding to the keys which are depressed; means for converting keyed output tone signals from said first and second keyboard devices into musical tone signals having prescribed tone colors; at least one signal delaying device coupled to an output of said converting means for delaying said musical tone signals received from said converting means; a control voltage generator associated with said keyboard devices and generating a control voltage representative of which of said keys of said keyboard devices are depressed; a transfer clock pulse generator of the voltage controlled type coupled to the output of said control voltage generator, said transfer clock pulse generator generating transfer clock pulses the frequency of which is a function of the control voltage generated by said control voltage generator; and means coupling the output of said transfer clock pulse generator to said signal delaying device, the delay time of said signal delaying device being determined by the frequency of said transfer clock pulses supplied thereto.
Claim 7
Dependent Claim
74 words
An electronic musical instrument according to claim 4 wherein said first and second keyboard devices are respectively provided with: a first and a second control voltage generator for generating a D.C. voltage having a magnitude corresponding to the keys depressed; and first and second voltage controlled oscillators coupled to said control voltage generators, respectively; output signals from said first and second voltage controlled oscillators being supplied to said at least one signal delaying device.
Claim 8
Dependent Claim
20 words
An electronic musical instrument according to claim 4 wherein said at least one signal device comprises a bucket brigade device.
Claim 9
Dependent Claim
39 words
An electronic musical instrument according to claim 5 wherein said at least one signal delaying device includes first and second delaying devices coupled to said converting means and being respectively coupled to said first and second voltage controlled oscillators.
Claim 10
Dependent Claim
20 words
An electronic musical instrument according to claim 7 wherein each of said signal delaying devices comprises a bucket brigade device.
Claim 11
Dependent Claim
46 words
An electronic musical instrument according to claim 4 which further includes a second voltage controlled oscillator supplied with said control voltage, the output of said second voltage controlled oscillator being coupled to said transfer clock pulse generator to vary the frequency oF said transfer clock pulses.
Claim 12
Dependent Claim
22 words
An electronic musical instrument according to claim 4 wherein said first and second keyboard devices are upper and lower keyboard devices, respectively.
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) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |