US4056995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single master tone generator
Assignee: Baldwin Piano and Organ Co
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Filing: 1975-03-31
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Granted: 1977-11-08
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Expires: 1995-03-31
Abstract
Abstract An electronic organ in which all the tones of the musical gamut are obtained by operations on the output of a single tone signal source, utilizing digital techniques to divide the frequency of the tone signal by appropriate integers.
Inventors
- 👤 Dale M. Uetrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:36
CPC Classifications
G; G10; G10H; G10H5/00; G10H5/02; G10H5/06; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
64 words
In an electronic musical instrument, the combination comprising a pair of frequency synthesizer, a source of clock pulses connected to one of said frequency synthesizers, and frequency divider means connected with said source for dividing the pulse repetition rate of said clock pulses by a factor which differs slightly from 2, said frequency divider means being connected to another one of said frequency synthesizers.
Claim 2
Dependent Claim
64 words
In an electronic musical instrument, the combination comprising a pair of frequency synthesizer, a source of clock pulses connected to one of said frequency synthesizers, and frequency divider means connected with said source for dividing the pulse repetition rate of said clock pulses by a factor which differs slightly from 2, said frequency divider means being connected to another one of said frequency synthesizers.
Claim 3
Dependent Claim
49 words
Apparatus according to claim 1, wherein said frequency divider means includes deriving means for deriving a train of pulses having a pulse repetition rate which differs from said clock pulses by a factor of two, and means connected with said deriving means for periodically omitting pulses from said train.
References Cited (Backward Citations)
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) | 1980-11-07 | 1981-05-09 | 1981-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-11-07 | 1985-05-09 | 1985-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-11-07 | 1989-05-09 | 1989-11-08 | $7700.00 | Window Closed / Lapsed |