US3755609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated circuit all-harmonic wave organ system including provision for flute tones and pedal notes
Assignee: Marmon Co
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Filing: 1972-04-28
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Granted: 1973-08-28
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Expires: 1992-04-28
Abstract
Abstract A bright wave (all harmonic wave) organ system which has direct current (D.C.) keying for all notes, both manual and pedal, and also provides sine wave (flute) notes by filtration. All-harmonic waves are provided by stairstepping octavely related square waves and the flutes by filtration of the complex stairstepped wave minus the square wave component which has its fundamental at twice the frequency of the desired flute note to accommodate octave flute filtering. The present arrangement is such that one integrated circuit package provides for two octavely related groups of adjacent notes, all C''s and all C ''s, for instance, for eight octaves of manual notes and three octaves of 16-, 8- and 4foot pedal notes or the equivalent. Each circuit package requires only one musical frequency input or clock for each of two adjacent note groups, one for C and one for C for instance. The integrated circuit packages are large scale integrations (LSI) and include the frequency dividers, the arrangement for keying and stairstepping the square waves, for collecting and controlling the outputs for octave or half octave sine wave filtration and for formanting, and for providing three pedal outputs, one each for the 16-foot, 8-foot and 4-foot pedal notes or the equivalent for other use. Provision is made for phase synchronization of the frequency dividers.
Inventors
- 👤 D Millet
- 👤 R Schrecongost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:36
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/06; G10H1/08; G10H1/18
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
358 words
A large scale integration circuit package for supplying and keying octavely related notes for an electrical musical instrument in both all-harmonic form and in a form suitable for filtration in substantially octave groups to produce flute tones comprising circuits within said package providing a binary divider chain, said package having an input to said chain for connection to receive a clock frequency, said divider chain providing a plurality of square wave signals which are successive binary submultiples of the clock frequency applied to said input, and connections to supply each of said square wave signals, a plurality of keyer groups, each of said keyer groups consisting of a plurality of individual keyers interconnected to be actuated to a conducting condition to pass a signal from each keyer input to its output when a keying potential is applied to a package terminal connected to all of the keyers of its group, each of the keyers of a group having input connections to said chain connections such that when a keying potential is applied to a group to make the keyers of said group conductive, one of said keyers in the group will conduct a square wave from said chain at the fundamental of a deSired note, another will conduct the square wave from said chain at the second harmonic of said note and a third will conduct the square wave from said chain at the fourth harmonic of said note, means within the package providing a common mixed output for the keyers of each group, the effective relative resistances of the keyers of each group being scaled such that the mixed signal at the common output of the group forms a stairstep wave, gate means in the connection between the divider chain and the common output through the second harmonic keyer in each of the groups, said gate means being conductive or not depending upon the voltage applied to an element of said gate, and a terminal for said package connected to all of the last said gate elements for opening or closing all of said gates together depending upon the potential applied to the last said package terminal.
Claim 2
Dependent Claim
358 words
A large scale integration circuit package for supplying and keying octavely related notes for an electrical musical instrument in both all-harmonic form and in a form suitable for filtration in substantially octave groups to produce flute tones comprising circuits within said package providing a binary divider chain, said package having an input to said chain for connection to receive a clock frequency, said divider chain providing a plurality of square wave signals which are successive binary submultiples of the clock frequency applied to said input, and connections to supply each of said square wave signals, a plurality of keyer groups, each of said keyer groups consisting of a plurality of individual keyers interconnected to be actuated to a conducting condition to pass a signal from each keyer input to its output when a keying potential is applied to a package terminal connected to all of the keyers of its group, each of the keyers of a group having input connections to said chain connections such that when a keying potential is applied to a group to make the keyers of said group conductive, one of said keyers in the group will conduct a square wave from said chain at the fundamental of a deSired note, another will conduct the square wave from said chain at the second harmonic of said note and a third will conduct the square wave from said chain at the fourth harmonic of said note, means within the package providing a common mixed output for the keyers of each group, the effective relative resistances of the keyers of each group being scaled such that the mixed signal at the common output of the group forms a stairstep wave, gate means in the connection between the divider chain and the common output through the second harmonic keyer in each of the groups, said gate means being conductive or not depending upon the voltage applied to an element of said gate, and a terminal for said package connected to all of the last said gate elements for opening or closing all of said gates together depending upon the potential applied to the last said package terminal.
Claim 3
Dependent Claim
27 words
The circuit package as called for in claim 1 in which said gate means are in the connections between the second harmonic keyers and the divider chain.
Claim 4
Dependent Claim
53 words
The circuit package as called for in claim 1 in which the package has input clock connections, divider chains and a plurality of keyer groups for two octave groups of notes a semitone apart, and in which the keyer group outputs for notes a semitone apart are connected together internally of the package.
Claim 5
Dependent Claim
53 words
The circuit package as called for in claim 2 in which the package has input clock connections, divider chains and a plurality of keyer groups for two octave groups of notes a semitone apart, and in which the keyer group outputs for notes a semitone apart are connected together internally of the package.
Claim 6
Dependent Claim
53 words
The circuit package as called for in claim 1 in which there are additional groups of keyers in said package connected to said divider chain, the last said groups of keyers being connected to said chain to provide 4 feet, 8 feet and 16 feet stairstep note outputs for at least two octaves.
Claim 7
Dependent Claim
53 words
The circuit package as called for in claim 2 in which there are additional groups of keyers to said package connected to said divider chain, the last said groups of keyers being connected to said chain to provide 4 feet, 8 feet and 16 feet stairstep note outputs for at least two octaves.
Claim 8
Dependent Claim
88 words
The circuit package as called for in claim 3 in which there are additional groups of keyers to said package connected to said divider chains, the last said groups of keyers being connected to said chains to provide 4 feet, 8 feet and 16 feet stairstep notes for at least two octaves of two groups of notes a semitone apart, said package having 4 feet, 8 feet and 16 feet output terminals connected to be common to all the 4 feet, 8 feet and 16 feet outputs respectively.
Claim 9
Dependent Claim
303 words
A large scale integration circuit package for supplying and keying octavely related notes for an electrical musical instrument in different wave forms comprising a large scale integration package having circuits therein providing a binary divider chain, an input to said chain for connection to receive a clock frequency, said divider chain providing a plurality of square wave signals which are successive binary submultiples of the clock frequency applied to said input, and connections to supply each of said square wave signals, a plurality of keyer groups, each of said keyer groups consisting of a plurality of individual keyers interconnected to be actuated to a conducting condition to pass a signal from each keyer input to its output when a keying potential is applied to a package terminal connected to all of the keyers of its group, each of the keyers of a group having input connections to said chain connections such that when a keying potential is applied to a group to make the keyers of said group conductive, the keyers of said group will conduct a plurality of octavely related square waves, means within the package providing a common mixed output for the keyers of each group, the effective relative impEdances of the keyers of each group being scaled such that the mixed signal at the common output of the group forms a stairstep wave, gate means in the connection between the divider chain and the common output through at least one of the keyers in each of the groups, said gate means being conductive or not depending upon the voltage applied to an element of said gate, and a terminal for said package connected to all of the last said gate elements for opening or closing all of said gates together depending upon the potential applied to the last said terminal.
Claim 10
Dependent Claim
303 words
A large scale integration circuit package for supplying and keying octavely related notes for an electrical musical instrument in different wave forms comprising a large scale integration package having circuits therein providing a binary divider chain, an input to said chain for connection to receive a clock frequency, said divider chain providing a plurality of square wave signals which are successive binary submultiples of the clock frequency applied to said input, and connections to supply each of said square wave signals, a plurality of keyer groups, each of said keyer groups consisting of a plurality of individual keyers interconnected to be actuated to a conducting condition to pass a signal from each keyer input to its output when a keying potential is applied to a package terminal connected to all of the keyers of its group, each of the keyers of a group having input connections to said chain connections such that when a keying potential is applied to a group to make the keyers of said group conductive, the keyers of said group will conduct a plurality of octavely related square waves, means within the package providing a common mixed output for the keyers of each group, the effective relative impEdances of the keyers of each group being scaled such that the mixed signal at the common output of the group forms a stairstep wave, gate means in the connection between the divider chain and the common output through at least one of the keyers in each of the groups, said gate means being conductive or not depending upon the voltage applied to an element of said gate, and a terminal for said package connected to all of the last said gate elements for opening or closing all of said gates together depending upon the potential applied to the last said terminal.
Claim 11
Dependent Claim
25 words
The circuit package as called for in claim 8 in which said gate means are in the connections between the keyers and the divider chain.
Claim 12
Dependent Claim
66 words
The circuit package as called for in claim 8 in which the package has input clock connections, divider chains and a plurality of keyer groups for at least two groups of notes, each of said groups comprising several octavely related notes, and in which the keyer group outputs for at least some of the notes within the same octave are connected together internally of the package.
Claim 13
Dependent Claim
66 words
The circuit package as called for in claim 9 in which the package has input clock connections, divider chains and a plurality of keyer groups for at least two groups of notes, each of said groups comprising several octavely related notes, and in which the keyer group outputs for at least some of the notes within the same octave are connected together internally of the package.
Claim 14
Dependent Claim
53 words
The circuit package as called for in claim 8 in which there are additional groups of keyers within the package connected to said divider chain, the last said groups of keyers being connected to said chain to provide 4 feet, 8 feet and 16 feet stairstep note outputs for at least two octaves.
Claim 15
Dependent Claim
53 words
The circuit package as called for in claim 9 in which there are additional groups of keyers within the package connected to said divider chain, the last said groups of keyers being connected to said chain to provide 4 feet, 8 feet and 16 feet stairstep note outputs for at least two octaves.
Claim 16
Dependent Claim
88 words
The circuit package as called for in claim 10 in which there are additional groups of keyers within the package connected to said divider chains, the last said groups of keyers being connected to said chains to provide 4 feet, 8 feet and 16 feet stairstep notes for at least two octaves of two groups of notes a semitone apart, said package having 4 feet, 8 feet and 16 feet output terminals connected to be common to all the 4 feet, 8 feet and 16 feet outputs respectively.
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |