US3787601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rhythmic interpolators
Assignee: Baldwin Piano and Organ Co
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Filing: 1972-02-07
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Granted: 1974-01-22
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Expires: 1992-02-07
Abstract
Abstract A system for development of rhythmic patterns in which repetitive ramp wave forms are developed, the repetition rate of which is controlled, pulses being developed by sampling the ramp wave forms at predetermined levels, certain of the pulses being selected by means of a matrix to form each required pattern. The minima and maxima of the ramps are maintained at fixed levels and the slopes of the ramps are conformed to the desired repetition rates in accordance with the tempo of a player controlled instrument, such as an electric organ. Provision is made for extending rhythm patterns over two measures, each different from the other, for inserting additional beats near the end of each fourth measure of a piece of music, provision of visual tempo indication, and provision of a cutoff for instant abortion of the presently played measure, allowing rapid changes of tempo.
Inventors
- 👤 D Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:00
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/36; G10H1/40; G10H2220/00; G10H2220/021; G10H2220/081; G10H2230/00; G10H2230/045; G10H2230/251; G10H2230/265; G10H2230/341; Y; Y10; Y10S; Y10S84/00; Y10S84/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
114 words
In an electronic music generation system, N channel means for generating N signals of different tone characteristics, and means including an N-phase pulse source for actuating each of said channel means by controlling the amplitudes of said signals at a rate no higher than the lowest frequency of any of said signals in a predetermined time phase relationship, N being an integer greater than one, said system including tone color filter means responsive to said signals of different tone characteristics, wherein said pulse source includes a ramp generator for producing a ramp wave, wherein said pulse source further includes means for deriving N control pulses per ramp at predetermined points along said ramp wave.
Claim 2
Dependent Claim
114 words
In an electronic music generation system, N channel means for generating N signals of different tone characteristics, and means including an N-phase pulse source for actuating each of said channel means by controlling the amplitudes of said signals at a rate no higher than the lowest frequency of any of said signals in a predetermined time phase relationship, N being an integer greater than one, said system including tone color filter means responsive to said signals of different tone characteristics, wherein said pulse source includes a ramp generator for producing a ramp wave, wherein said pulse source further includes means for deriving N control pulses per ramp at predetermined points along said ramp wave.
Claim 3
Dependent Claim
145 words
In an electronic music generation system: two tone signal generating channel means; each channel means each including a tone signal source, an amplitude control circuit for said source, and a tone color filter circuit for said source; a pulse source producing two output control pulses of different phase and having a frequency of occurrence no higher than the lower frequency of either of the tone signal sources; means coupling one pulse soUrce output to the amplitude control circuit of one channel; and means coupling another pulse source output to the amplitude control circuit of the other channel; whereby said two channel means are actuated in response to the two signals of different phase, wherein said pulse source includes a ramp generator and means for deriving said control pulses applied to said amplitude control circuits at predetermined points along the ramps produced by said ramp generator.
Claim 4
Dependent Claim
145 words
In an electronic music generation system: two tone signal generating channel means; each channel means each including a tone signal source, an amplitude control circuit for said source, and a tone color filter circuit for said source; a pulse source producing two output control pulses of different phase and having a frequency of occurrence no higher than the lower frequency of either of the tone signal sources; means coupling one pulse soUrce output to the amplitude control circuit of one channel; and means coupling another pulse source output to the amplitude control circuit of the other channel; whereby said two channel means are actuated in response to the two signals of different phase, wherein said pulse source includes a ramp generator and means for deriving said control pulses applied to said amplitude control circuits at predetermined points along the ramps produced by said ramp generator.
Claim 5
Dependent Claim
29 words
In an electronic music generation system as set forth in claim 2, each said coupling means including means for shaping a respective pulse source output signal into desired waveforms.
Claim 6
Dependent Claim
130 words
In an electronic music generation system: two tone signal generating channel means; each channel means including a tone signal source, and a control circuit therefor; a pulse source having two outputs providing two signals of different phase and having a frequency no higher than the lowest frequency of either of the tone signal sources, means coupling one output to the control circuit of one channel; and means coupling the other pulse source output to the control circuit of the other channel; whereby said two channel means are actuated in response to the two signals of different phase, wherein said pulse source includes a ramp generator, means for deriving control pulses at predetermined points along said ramp generator and means applying said control pulses in control relation to said control circuits.
Claim 7
Dependent Claim
130 words
In an electronic music generation system: two tone signal generating channel means; each channel means including a tone signal source, and a control circuit therefor; a pulse source having two outputs providing two signals of different phase and having a frequency no higher than the lowest frequency of either of the tone signal sources, means coupling one output to the control circuit of one channel; and means coupling the other pulse source output to the control circuit of the other channel; whereby said two channel means are actuated in response to the two signals of different phase, wherein said pulse source includes a ramp generator, means for deriving control pulses at predetermined points along said ramp generator and means applying said control pulses in control relation to said control circuits.
Claim 8
Dependent Claim
101 words
In an electronic music generation system, a plurality of channel means for generating a plurality of tone signals of different frequency characteristics, and means including a pulse source for controlling each of said channel means by controlling the amplitudes of said signals at a rate no higher than the lowest frequency of any of said signals in a predetermined time phase relationship, wherein said pulse source includes a ramp generator, and means for deriving a plurality of control pulses per ramp at predetermined points along the ramps of said ramp generator and means for applying said pulses to control said amplitudes.
Claim 9
Dependent Claim
101 words
In an electronic music generation system, a plurality of channel means for generating a plurality of tone signals of different frequency characteristics, and means including a pulse source for controlling each of said channel means by controlling the amplitudes of said signals at a rate no higher than the lowest frequency of any of said signals in a predetermined time phase relationship, wherein said pulse source includes a ramp generator, and means for deriving a plurality of control pulses per ramp at predetermined points along the ramps of said ramp generator and means for applying said pulses to control said amplitudes.
Claim 10
Dependent Claim
81 words
In a music system, a source of repetitive ramp wave forms, adjustable means for controlling the repetition rate of said repetitive ramp wave forms, means for deriving a sequence of pulses in response to preselected voltage levels along said repetitive ramp wave forms, matrix means for at will selecting various distinct arrays of said pulses corresponding with rhythmic patterns and applying the selected pulses to selected conductors of said matrix, and means responsive to said selected pulses for generating rhythmic sounds.
Claim 11
Dependent Claim
81 words
In a music system, a source of repetitive ramp wave forms, adjustable means for controlling the repetition rate of said repetitive ramp wave forms, means for deriving a sequence of pulses in response to preselected voltage levels along said repetitive ramp wave forms, matrix means for at will selecting various distinct arrays of said pulses corresponding with rhythmic patterns and applying the selected pulses to selected conductors of said matrix, and means responsive to said selected pulses for generating rhythmic sounds.
Claim 12
Dependent Claim
36 words
The combination according to claim 6 wherein is provided means maintaining the maxima and minima of said ramp wave forms at fixed levels and conforming the slopes of said ramp waves to provide said repetition rate.
Claim 13
Dependent Claim
103 words
A music system for generating a predetermined pattern of pulses, comprising a source of a ramp wave form, means clamping the maximum and minimum values of said ramp wave form, means for adjustably varying the slope of said ramp wave form to vary the duration of said ramp wave form to conform with said durations, means for sampling said ramp wave form at a predetermined sequence of levels therealong to generate said predetermined pattern of pulses, means for preselecting an array of pulses from said sequence of pulses, and means responsive to each of said array of pulses for generating a musical tone.
Claim 14
Dependent Claim
103 words
A music system for generating a predetermined pattern of pulses, comprising a source of a ramp wave form, means clamping the maximum and minimum values of said ramp wave form, means for adjustably varying the slope of said ramp wave form to vary the duration of said ramp wave form to conform with said durations, means for sampling said ramp wave form at a predetermined sequence of levels therealong to generate said predetermined pattern of pulses, means for preselecting an array of pulses from said sequence of pulses, and means responsive to each of said array of pulses for generating a musical tone.
Claim 15
Dependent Claim
122 words
In an electronic organ system, means for generating recurrent rhythmic patterns of control pulses, a plurality of normally inoperative sources of tone signals, means responsive to said control pulses for rendering operative selective ones of said normally inoperative sources of tone signals, means for generating a tempo control signal, means for controlling the tempo of said rhythmic patterns of control pulses in responsive to said tempo control signal, means for controlling the durations of tone produced by at Least one of said sources of tone signals and means responsive to said tempo control signal for controlling said last named means in such sense that the durations of said at least one of said percussive tone signals are decreased as said tempo increases.
Claim 16
Dependent Claim
122 words
In an electronic organ system, means for generating recurrent rhythmic patterns of control pulses, a plurality of normally inoperative sources of tone signals, means responsive to said control pulses for rendering operative selective ones of said normally inoperative sources of tone signals, means for generating a tempo control signal, means for controlling the tempo of said rhythmic patterns of control pulses in responsive to said tempo control signal, means for controlling the durations of tone produced by at Least one of said sources of tone signals and means responsive to said tempo control signal for controlling said last named means in such sense that the durations of said at least one of said percussive tone signals are decreased as said tempo increases.
Claim 17
Dependent Claim
52 words
The combination according to claim 9, wherein said control signal is a control voltage, and said means for controlling the durations of tone produced by at least one of said sources of tone signals is a voltage responsive electronic device connected to said at least one of said sources of tone signals.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |