US3520982A - Method and a device for generating an equal-tempered tone scale in musical instruments - Google Patents
Method and a device for generating an equal-tempered tone scale in musical instruments Download PDFInfo
- Publication number
- US3520982A US3520982A US649984A US3520982DA US3520982A US 3520982 A US3520982 A US 3520982A US 649984 A US649984 A US 649984A US 3520982D A US3520982D A US 3520982DA US 3520982 A US3520982 A US 3520982A
- Authority
- US
- United States
- Prior art keywords
- frequency
- voltage
- tone
- oscillator
- frequencies
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
- G10H5/00—Instruments in which the tones are generated by means of electronic generators
- G10H5/02—Instruments in which the tones are generated by means of electronic generators using generation of basic tones
- G10H5/08—Instruments in which the tones are generated by means of electronic generators using generation of basic tones tones generated by heterodyning
Definitions
- the capacitor C During an interval when ST delivers 6 volt at its output the capacitor C will be charged by a negative voltage from the output of the stage, i.e. the voltage across C decreases. At a certain value of the voltage of the capacitor the triggering level is reached and the stage switched to the opposite position, in which it delivers 0 volt at its output. The voltage across the capacitor C will now increase until the input voltage reaches the triggering level for switching the stage in opposite direction; then the capacitor voltage will again decrease and the procedure is repeated.
- an inverted gate pulse is furthermore derived from Sc i.e. a voltage which is 0 during the gate pulse and negative during intermediate intervals, which voltage is applied to the capacitor C through a resistance R
- Sc i.e. a voltage which is 0 during the gate pulse and negative during intermediate intervals, which voltage is applied to the capacitor C through a resistance R
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
- Electromagnets (AREA)
- Oscillators With Electromechanical Resonators (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE893766 | 1966-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3520982A true US3520982A (en) | 1970-07-21 |
Family
ID=20275413
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US649984A Expired - Lifetime US3520982A (en) | 1966-06-30 | 1967-06-29 | Method and a device for generating an equal-tempered tone scale in musical instruments |
Country Status (9)
Country | Link |
---|---|
US (1) | US3520982A (nl) |
AT (1) | AT286084B (nl) |
BE (1) | BE700703A (nl) |
CH (1) | CH464660A (nl) |
DE (1) | DE1547588C3 (nl) |
ES (1) | ES342408A1 (nl) |
GB (1) | GB1185888A (nl) |
NL (1) | NL143356B (nl) |
NO (1) | NO120565B (nl) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3696201A (en) * | 1970-11-12 | 1972-10-03 | Wurlitzer Co | Digital organ system |
US3775545A (en) * | 1969-09-09 | 1973-11-27 | Matsushita Electric Ind Co Ltd | Electronic musical instrument employing a sampling system as a coupler |
US3795754A (en) * | 1971-03-06 | 1974-03-05 | Nippon Musical Instruments Mfg | Electronic musical instruments with two master oscillators |
US3831172A (en) * | 1972-01-03 | 1974-08-20 | Universal Res Labor Inc | Solid-state sound effect generating system |
RU2683121C1 (ru) * | 2018-06-13 | 2019-03-26 | Илья Витальевич Мамонтов | Способ получения сигнала управления громкостью у терменвокса |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2293499A (en) * | 1940-10-15 | 1942-08-18 | Western Electric Co | Musical instrument |
US2864956A (en) * | 1957-12-17 | 1958-12-16 | Ca Nat Research Council | Stabilization system for tunable oscillator with reference to a pair of stable oscillators |
US2987680A (en) * | 1959-04-01 | 1961-06-06 | Bell Telephone Labor Inc | Apparatus for generating oscillations of different frequencies |
US3202930A (en) * | 1961-11-16 | 1965-08-24 | Plessey Co Ltd | Apparatus for frequency synthesis |
-
1967
- 1967-06-27 GB GB29525/67A patent/GB1185888A/en not_active Expired
- 1967-06-27 NL NL676708898A patent/NL143356B/nl unknown
- 1967-06-27 CH CH907767A patent/CH464660A/de unknown
- 1967-06-27 AT AT596567A patent/AT286084B/de not_active IP Right Cessation
- 1967-06-27 DE DE1547588A patent/DE1547588C3/de not_active Expired
- 1967-06-27 NO NO168774A patent/NO120565B/no unknown
- 1967-06-28 ES ES342408A patent/ES342408A1/es not_active Expired
- 1967-06-29 BE BE700703D patent/BE700703A/xx unknown
- 1967-06-29 US US649984A patent/US3520982A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2293499A (en) * | 1940-10-15 | 1942-08-18 | Western Electric Co | Musical instrument |
US2864956A (en) * | 1957-12-17 | 1958-12-16 | Ca Nat Research Council | Stabilization system for tunable oscillator with reference to a pair of stable oscillators |
US2987680A (en) * | 1959-04-01 | 1961-06-06 | Bell Telephone Labor Inc | Apparatus for generating oscillations of different frequencies |
US3202930A (en) * | 1961-11-16 | 1965-08-24 | Plessey Co Ltd | Apparatus for frequency synthesis |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3775545A (en) * | 1969-09-09 | 1973-11-27 | Matsushita Electric Ind Co Ltd | Electronic musical instrument employing a sampling system as a coupler |
US3696201A (en) * | 1970-11-12 | 1972-10-03 | Wurlitzer Co | Digital organ system |
US3795754A (en) * | 1971-03-06 | 1974-03-05 | Nippon Musical Instruments Mfg | Electronic musical instruments with two master oscillators |
US3831172A (en) * | 1972-01-03 | 1974-08-20 | Universal Res Labor Inc | Solid-state sound effect generating system |
RU2683121C1 (ru) * | 2018-06-13 | 2019-03-26 | Илья Витальевич Мамонтов | Способ получения сигнала управления громкостью у терменвокса |
Also Published As
Publication number | Publication date |
---|---|
NL6708898A (nl) | 1968-01-02 |
BE700703A (nl) | 1967-12-29 |
CH464660A (de) | 1968-10-31 |
NL143356B (nl) | 1974-09-16 |
AT286084B (de) | 1970-11-25 |
DE1547588C3 (de) | 1974-07-25 |
ES342408A1 (es) | 1968-07-16 |
NO120565B (nl) | 1970-11-02 |
GB1185888A (en) | 1970-03-25 |
DE1547588A1 (de) | 1969-10-30 |
DE1547588B2 (de) | 1974-01-03 |
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