Patent US5018430A successfully refreshed from Google Patents.
US5018430A
Expired / Lapsed
US
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Electronic musical instrument with a touch response function
Assignee: Casio Computer Co Ltd
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Filing: 1989-06-15
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Granted: 1991-05-28
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Expires: 2009-06-15
Abstract
Abstract Initial touch data or after touch data is obtained by operating a play input unit, such as keys or strings. A musical tone whose timbre or volume changes by the touch data is obtained. A tone generator has a plurality of sound source lines. Desired waveform data is selected by the touch data for each line. Only one type of the selected waveform data that is segmented at a touch split point is outputted for each line. The musical tone may be detuned by finely staggering the reference frequency, for each line. An envelope waveform may be applied to the musical tone for each line.
Inventors
- 👤 Tatsuya Iijima
- 👤 Hiroshi Morokuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:51
CPC Classifications
G; G10; G10H; G10H7/00; G10H7/002; G10H1/00; G10H1/02; G10H1/04; G10H1/053; G10H1/057; G10H1/0575; G10H1/06; G10H1/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
206 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the other waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data; and detune setting means for staggering the frequencies of the tone waveforms generated from said plurality of lines.
Claim 2
Dependent Claim
206 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the other waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data; and detune setting means for staggering the frequencies of the tone waveforms generated from said plurality of lines.
Claim 3
Dependent Claim
52 words
The musical instrument according to claim 1, in which at least one of the tone waveforms assigned for said each line, the touch response data set for said each line, the touch split point set for said each line, and the difference between the reference frequencies of said respective lines is prefixed.
Claim 4
Dependent Claim
53 words
The musical instrument according to claim 1, in which at least one of the tone waveforms assigned for said each line, the touch response data set for said each line, the touch split point set for said each line, and the difference between, the reference frequencies of said respective lines is appropriately set.
Claim 5
Dependent Claim
22 words
The musical instrument according to claim 1, in which said waveform generating means includes waveform memory means storing amplitudes of musical tones.
Claim 6
Dependent Claim
225 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the tone waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data; envelope control means for controlling envelope of the tone waveforms of said lines derived from said waveform level control means; and combining means for combining a plurality of musical tone waveforms obtained by said envelope control means.
Claim 7
Dependent Claim
225 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the tone waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data; envelope control means for controlling envelope of the tone waveforms of said lines derived from said waveform level control means; and combining means for combining a plurality of musical tone waveforms obtained by said envelope control means.
Claim 8
Dependent Claim
52 words
The musical instrument according to claim 5, in which at least one of the tone waveforms assigned for said each line, the touch response data set for said each line, the touch split point set for said each line, and the difference between the reference frequencies of said respective lines is prefixed.
Claim 9
Dependent Claim
53 words
The musical instrument according to claim 5, in which at least one of the tone waveforms assigned for said each line, the touch response data set for said each line, the touch split point set for said each line, and the difference between the reference frequencies of said respective lines is appropriately set.
Claim 10
Dependent Claim
22 words
The musical insturment according to claim 5, in which said waveform generating means includes waveform memory means storing amplitudes of musical tones.
Claim 11
Dependent Claim
189 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; and waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the tone waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data.
Claim 12
Dependent Claim
189 words
An electronic musical instrument, comprising: waveform generating means having a plurality of lines, each generating one of a plurality of tone waveforms in response to a single input performance data; touch response curve setting means for setting, for each of said lines, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said lines, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of tone waveforms to each range set by said touch split point setting means, and for determining a tone waveform to be generated by each of said lines in accordance with an input touch data; and waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the tone waveform to be generated by each line according to the touch response curve set for each line, in response to an input performance data.
Claim 13
Dependent Claim
54 words
The musical instrument according to claim 9, in which at least one of the tone waveforms assigned for said each line, the types of the touch curve set for said each line, the touch split point set for said each line, and the difference between the reference frequencies of said respective lines is prefixed.
Claim 14
Dependent Claim
55 words
The musical instrument according to claim 9, in which at least one of the tone waveforms assigned for said each line, the types of the touch curve set for said each line, the touch split point set for said each line, and the difference between, the reference frequencies of said respective lines is appropriately set.
Claim 15
Dependent Claim
22 words
The musical instrument according to claim 9, in which said waveform generating means includes waveform memory means storing amplitudes of musical tones.
Claim 16
Dependent Claim
201 words
An electronic musical instrument, comprising: waveform generating means for generating a plurality of musical tone waveforms simultaneously in order to generate a plurality of musical tones in response to a single input performance data; touch response curve setting means for setting, for each of said musical tones, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said musical tones, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of musical tone waveforms to each range set by said touch split point setting means, and for determining a musical tone waveform to be generated as each of said musical tones in accordance with an input touch data; and waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the musical tone waveform to be generated as each musical tone according to the touch response curve set for each musical tone, in response to an input performance data.
Claim 17
Dependent Claim
201 words
An electronic musical instrument, comprising: waveform generating means for generating a plurality of musical tone waveforms simultaneously in order to generate a plurality of musical tones in response to a single input performance data; touch response curve setting means for setting, for each of said musical tones, a touch response curve representing a relationship between a degree of touch data and a waveform level; touch split point setting means for setting, for each of said musical tones, a point to divide the touch response curve into touch response curves having respective ranges; waveform assigning means coupled to said touch split point setting means, for assigning a selected one of said plurality of musical tone waveforms to each range set by said touch split point setting means, and for determining a musical tone waveform to be generated as each of said musical tones in accordance with an input touch data; and waveform level control means coupled to said waveform generating means and to said waveform assigning means, for controlling a waveform level of the musical tone waveform to be generated as each musical tone according to the touch response curve set for each musical tone, in response to an input performance data.
Claim 18
Dependent Claim
46 words
The musical instrument according to claim 13, in which at least one of the musical tone waveforms assigned for said musical tone, the touch response data set for said each musical tone, and the touch split point set for each of said musical tones, is prefixed.
Claim 19
Dependent Claim
47 words
The musical instrument according to claim 13, in which at least one of the musical tone waveforms assigned for said each musical tone, the touch response data set for said each musical tone, and the touch split point set for said each musical tone is appropriately set.
References Cited (Backward Citations)
US4674382A
Cited
US4875400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-05-27 | 1994-11-26 | 1995-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-05-27 | 1998-11-26 | 1999-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-05-27 | 2002-11-26 | 2003-05-28 | $7700.00 | Window Closed / Lapsed |