US3824326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrato signal generating apparatus for an electronic musical instrument
Assignee: Kawai Musical Instruments Manufacturing Co Ltd
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Filing: 1973-06-06
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Granted: 1974-07-16
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Expires: 1993-06-06
Abstract
Abstract A vibrato signal generating apparatus for an electronic musical instrument characterized in that an AND gate circuit is interposed in a circuit connected between a high frequency oscillator and an octave frequency divider, and an astable multivibrator modulated by a vibrato oscillator is provided and is so arranged that the AND gate circuit is controlled by the output signal of the astable multivibrator.
Inventors
- 👤 N Obayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:02
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/02; G10H1/04; G10H1/043
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
53 words
A musical instrument comprising oscillator means, octave frequency divider means, gating means coupling said oscillator and divider means, multivibrator means coupled to and controlling said gating means, and vibrato oscillator means coupled to and controlling said multivibrator means, said instrument further comprising switching means selectively coupling said gating means to said divider means.
Claim 2
Dependent Claim
53 words
A musical instrument comprising oscillator means, octave frequency divider means, gating means coupling said oscillator and divider means, multivibrator means coupled to and controlling said gating means, and vibrato oscillator means coupled to and controlling said multivibrator means, said instrument further comprising switching means selectively coupling said gating means to said divider means.
Claim 3
Dependent Claim
27 words
A musical instrument as claimed in claim 1 comprising counter means interchangeably coupling said oscillator means with said divider means under the control of said switching means.
Claim 4
Dependent Claim
52 words
A musical instrument as claimed in claim 1 comprising parallel waveforming means, NOT gating means coupling one of said waveforming means to said oscillator means, the other of said waveforming means being coupled directly to said oscillator means, and OR gating means coupling said waveforming means to the first said gating means.
Claim 5
Dependent Claim
24 words
A musical instrument as claimed in claim 1 wherein said octave frequency dividing means includes a plurality of frequency dividing means connected in series.
Claim 6
Dependent Claim
24 words
A musical instrument as claimed In claim 1 wherein the vibrato oscillator means modulates the multivibrator means at a frequency of about 5-10 Hz.
Claim 7
Dependent Claim
16 words
A musical instrument as claimed in claim 1 wherein said multivibrator means includes an astable multivibrator.
Claim 8
Dependent Claim
20 words
A musical instrument as claimed in claim 1 wherein said vibrato oscillator means is a phase shifting type of oscillator.
Claim 9
Dependent Claim
18 words
A musical instrument as claimed in claim 1 wherein the first said oscillator means includes a quartz oscillator.
Claim 10
Dependent Claim
59 words
A musical instrument comprising oscillator means, octave frequency divider means, gating means coupling said oscillator and divider means, multivibrator means coupled to and controlling said gating means, and vibrato oscillator means coupled to and controlling said multivibrator means, said octave frequency dividing means including a plurality of frequency dividing means connected in parallel and having different frequency dividing characteristics.
Claim 11
Dependent Claim
59 words
A musical instrument comprising oscillator means, octave frequency divider means, gating means coupling said oscillator and divider means, multivibrator means coupled to and controlling said gating means, and vibrato oscillator means coupled to and controlling said multivibrator means, said octave frequency dividing means including a plurality of frequency dividing means connected in parallel and having different frequency dividing characteristics.
References Cited (Backward Citations)
US3288909A
Cited
US3234485A
Cited
US3259852A
Cited
US3479440A
Cited
US3617901A
Cited
US3590131A
Cited
US3601518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |