US4085645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instantly retunable tone generator for an electronic musical instrument
Assignee: Motorola Solutions Inc
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Filing: 1976-10-29
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Granted: 1978-04-25
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Expires: 1996-10-29
Abstract
Abstract DC programmable counters with DC switching provide instant retuning of an entire keyboard of a programmable electronic musical instrument to any one of a plurality of different scales.
Inventors
- 👤 Donald Carroll Ryon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:44
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/20; G10H5/00; G10H5/02; G10H5/06; Y; Y10; Y10S; Y10S84/00; Y10S84/11
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
In a programmable tone generator for simultaneously providing a multiplicity of signal frequencies having a predetermined frequency relationship therebetween corresponding to one of a plurality of musical scales, a system for providing instant access to ones of a multiplicity of programs comprising: a source of reference frequency; Dc programmable divider means coupled to the frequency source; Dc controlled switching means coupled to the divider means; a source of DC potential for controlling said switching means; a multiplicity of programming means coupled to the switching means for programming the divider means; and manual switching means for selectively coupling the source of DC potential to one of the programming means.
Claim 2
Dependent Claim
108 words
In a programmable tone generator for simultaneously providing a multiplicity of signal frequencies having a predetermined frequency relationship therebetween corresponding to one of a plurality of musical scales, a system for providing instant access to ones of a multiplicity of programs comprising: a source of reference frequency; Dc programmable divider means coupled to the frequency source; Dc controlled switching means coupled to the divider means; a source of DC potential for controlling said switching means; a multiplicity of programming means coupled to the switching means for programming the divider means; and manual switching means for selectively coupling the source of DC potential to one of the programming means.
Claim 3
Dependent Claim
21 words
A system according to claim 1 wherein the DC programmable dividers and the DC controlled switching means comprise synchronous up/down counters.
Claim 4
Dependent Claim
39 words
A system according to claim 2 wherein the synchronous counters have multiple data inputs and the programming means comprises means for selectively coupling the source of DC potential to ones of the data inputs of the synchronous up/down counters.
Claim 5
Dependent Claim
16 words
A system according to claim 3 wherein the DC potential coupling means comprise single-pole single-throw switches.
Claim 6
Dependent Claim
16 words
A system according to claim 3 wherein the DC potential coupling means comprise removeably wired connections.
Claim 7
Dependent Claim
16 words
A system according to claim 3 wherein the DC potential coupling means comprise permanently wired connections.
Claim 8
Dependent Claim
50 words
A system according to claim 1 and further including octave divider means coupled to the programmable divider means for providing suboctaves of each divider output, amplifier means, output means coupled to the amplifier means, and means for selectively coupling desired outputs of the octave divider means to the amplifier means.
Claim 9
Dependent Claim
13 words
A system according to claim 7 wherein the output coupling means comprise keyboards.
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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |