US5166464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic musical instrument having a reverberation
Assignee: Casio Computer Co Ltd
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Filing: 1991-10-15
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Granted: 1992-11-24
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Expires: 2011-10-15
Abstract
Abstract Either the frequency of phase of an original musical sound signal is modulated, the musical sound signal is weighted, a reverberation effect is added thereto and the thus modified signal is added with the original musical sound signal.
Inventors
- 👤 Goro Sakata
- 👤 Akio Iba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:36
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/0091; G10H2210/00; G10H2210/155; G10H2210/265; G10H2210/281; G10H2210/295; G10H2210/305; Y; Y10; Y10S; Y10S84/00; Y10S84/26
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
167 words
An electronic musical instrument having a reverberation effect adding device comprising: sound source means for generating a musical sound signal in response to a musical performance information; modulating means for modulating either a frequency or phase of an original musical sound signal generated from said sound source means; reverberation sound generating means for adding a reverberation effect to the musical sound signal modulated by said modulating means to generate a reverberation sound; operating means for generating an operation information for controlling a sound volume of said reverberation sound in response to an operation performed by a player; reverberation sound volume control means for controlling a sound volume of the reverberation sound generated by said reverberation sound generating means in accordance with the operation information generated by said operating means; and adding means for adding the reverberation sound generated by said reverberation sound generating means to an original musical sound signal generated from said sound source means to generate a musical sound output signal having a reverberation effect.
Claim 2
Dependent Claim
167 words
An electronic musical instrument having a reverberation effect adding device comprising: sound source means for generating a musical sound signal in response to a musical performance information; modulating means for modulating either a frequency or phase of an original musical sound signal generated from said sound source means; reverberation sound generating means for adding a reverberation effect to the musical sound signal modulated by said modulating means to generate a reverberation sound; operating means for generating an operation information for controlling a sound volume of said reverberation sound in response to an operation performed by a player; reverberation sound volume control means for controlling a sound volume of the reverberation sound generated by said reverberation sound generating means in accordance with the operation information generated by said operating means; and adding means for adding the reverberation sound generated by said reverberation sound generating means to an original musical sound signal generated from said sound source means to generate a musical sound output signal having a reverberation effect.
Claim 3
Dependent Claim
40 words
An electronic musical instrument according to claim 1, further comprising reverberation time control means for controlling a reverberation time of the reverberation sound generated from said reverberation sound generating means in accordance with said operation information from said operating means.
Claim 4
Dependent Claim
39 words
An electronic musical instrument according to claim 1, further comprising modulation characteristic control means for controlling a modulation characteristic of said musical sound signal modulated by said modulating means in accordance with said operation information from said operating means.
Claim 5
Dependent Claim
39 words
An electronic musical instrument according to claim 2, further comprising modulation characteristic control means for controlling a modulation characteristic of said musical sound signal modulated by said modulating means in accordance with said operation information from said operating means.
Claim 6
Dependent Claim
36 words
An electronic musical instrument according to claim 1, further comprising modulation characteristic control means for controlling a modulation characteristic of said musical sound signal modulated by said modulating means in accordance with said musical performance information.
Claim 7
Dependent Claim
36 words
An electronic musical instrument according to claim 2, further comprising modulation characteristic control means for controlling a modulation characteristic of said musical sound signal modulated by said modulating means in accordance with said musical performance information.
Claim 8
Dependent Claim
34 words
An electronic musical instrument according to claim 5, wherein said musical performance information used by said modulation characteristic control means to control said modulation characteristic comprises information indicative of a kind of chord played.
Claim 9
Dependent Claim
34 words
An electronic musical instrument according to claim 6, wherein said musical performance information used by said modulation characteristic control means to control said modulation characteristic comprises information indicative of a kind of chord played.
Claim 10
Dependent Claim
17 words
An electronic musical instrument according to claim 1, wherein said operating means comprises a pedal operating means.
Claim 11
Dependent Claim
18 words
An electronic musical instrument according to claim 1, further comprising a keyboard for generating said musical performance information.
Claim 12
Dependent Claim
162 words
An electronic musical instrument having a reverberation effect adding device, comprising: sound source means for generating a musical sound signal in response to a musical performance information; weighting means for weighting an original musical sound signal generated from said sound source means in response to said musical performance information; reverberation sound generating means for adding a reverberation effect to the musical sound signal modulated by said weighting means to generate a reverberation sound; operating means for generating an operation information for controlling a sound volume of said reverberation sound on the basis of operation done by a player; reverberation sound volume control means for controlling a sound volume of the reverberation sound generated by said reverberation sound generating means in accordance with the operation information from said operating means; and adding means for adding the reverberation sound generated from said reverberation sound generating means to the original musical sound generated from said sound source means to generate a musical sound output signal.
Claim 13
Dependent Claim
162 words
An electronic musical instrument having a reverberation effect adding device, comprising: sound source means for generating a musical sound signal in response to a musical performance information; weighting means for weighting an original musical sound signal generated from said sound source means in response to said musical performance information; reverberation sound generating means for adding a reverberation effect to the musical sound signal modulated by said weighting means to generate a reverberation sound; operating means for generating an operation information for controlling a sound volume of said reverberation sound on the basis of operation done by a player; reverberation sound volume control means for controlling a sound volume of the reverberation sound generated by said reverberation sound generating means in accordance with the operation information from said operating means; and adding means for adding the reverberation sound generated from said reverberation sound generating means to the original musical sound generated from said sound source means to generate a musical sound output signal.
Claim 14
Dependent Claim
24 words
An electronic musical instrument according to claim 11, wherein said musical performance information to which said weighting means is responsive, comprises a key note.
Claim 15
Dependent Claim
40 words
An electronic musical instrument according to claim 11, further comprising reverberation time control means for controlling a reverberation time of said reverberation sound generated by said reverberation sound generating means in accordance with the operation information from said operation means.
Claim 16
Dependent Claim
40 words
An electronic musical instrument according to claim 12, further comprising reverberation time control means for controlling a reverberation time of said reverberation sound generated by said reverberation sound generating means in accordance with the operation information from said operation means.
Claim 17
Dependent Claim
17 words
An electronic musical instrument according to claim 11, wherein said operating means comprises a pedal operating means.
Claim 18
Dependent Claim
18 words
An electronic musical instrument according to claim 11, further comprising a keyboard for generating said musical performance information.
References Cited (Backward Citations)
US3978421A
Cited
US4649786A
Cited
US4738179A
Cited
JPS6068387A
Cited
JPS6091395A
Cited
US4679480A
Cited
JPS61172192A
Cited
US4706537A
Cited
US4909121A
Cited
US4909119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-11-24 | 1996-05-25 | 1996-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-24 | 2000-05-25 | 2000-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-24 | 2004-05-25 | 2004-11-24 | $7700.00 | Window Closed / Lapsed |