GB1399179A - Electronic musical instrument capable of providing a third type of musical tones by operation of two keyboards in addition to the ordinary melody and chord tones - Google Patents
Electronic musical instrument capable of providing a third type of musical tones by operation of two keyboards in addition to the ordinary melody and chord tonesInfo
- Publication number
- GB1399179A GB1399179A GB2576573A GB2576573A GB1399179A GB 1399179 A GB1399179 A GB 1399179A GB 2576573 A GB2576573 A GB 2576573A GB 2576573 A GB2576573 A GB 2576573A GB 1399179 A GB1399179 A GB 1399179A
- Authority
- GB
- United Kingdom
- Prior art keywords
- melody
- tone
- keyboard
- tones
- gate
- 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
Links
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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
- G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
-
- 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
- G10H1/00—Details of electrophonic musical instruments
- G10H1/36—Accompaniment arrangements
- G10H1/38—Chord
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
1399179 Electrophonic musical instrument NIPPON GAKKI SEIZO KK 30 May 1973 [30 May 1972 (4)] 25765/73 Heading G5J With upper (melody) keyboard 13 and lower (chord) keyboard 15 conventionally connecting appropriate tone generators 11 via keyers 12, 14 through channels 1 and II to output amplifier 17 and loudspeaker 18, a third channel III to output is provided by gating at 20 signals from those tone generators already selected by chord keyboard 15 so that such tones, synchronized with melody keyboard 13 by being given percussive envelope form when any melody key is pressed, or sustained as long as such a key is pressed, are fed additionally to output. In each channel tone colouring filters 16, 19, 22 modify the tones. Gate 20 is controlled via detector 21 operated either directly by any keyswitch in keyer 12, or by detecting the presence of any melody tone signal switched on by keyer 12. When operated by keyswitches, a monostable multivibrator in detector 21 is triggered by any keyswitch, resetting itself after a fixed time. To produce a percussive envelope, multivibrator step output is converted to exponential decay by adjustable R-C differentiating circuit, with diode elimination of reverse pulses at reset. When operated by the presence of a signal, the melody tone is amplified, rectified, smoothed and finally passed to an adjustable R-C differentiating circuit if percussive envelope is required. In all cases the detector output controls a FET as gate 20. In an alternative embodiment (Fig. 6, not shown), gate 20 is duplicated, feeding separate tone colouring filters with percussive and sustained envelopes; their outputs, combined via volume controls and stop switches, are fed to the amplifier 7 and loud-speaker 18 optionally via a modulator driven by low frequency oscillator providing amplitude, frequency or tone colour vibrate or tremolo modulation. In a third embodiment (Fig. 9, not shown), the melody keyboard is divided into octave ranges, controlling separate detectors and gates, each feeding a separate tone colour filter. The notes passed by each gate, either percussive or sustained, agree in position in an octave with those played on the chord keyboard, but their footage (octave) rises in step with the octave of melody keys controlling that gate.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47053552A JPS5123338B2 (en) | 1972-05-30 | 1972-05-30 | |
JP47053551A JPS4911114A (en) | 1972-05-30 | 1972-05-30 | |
JP47053553A JPS5123339B2 (en) | 1972-05-30 | 1972-05-30 | |
JP47053554A JPS5125332B2 (en) | 1972-05-30 | 1972-05-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1399179A true GB1399179A (en) | 1975-06-25 |
Family
ID=27462918
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2576573A Expired GB1399179A (en) | 1972-05-30 | 1973-05-30 | Electronic musical instrument capable of providing a third type of musical tones by operation of two keyboards in addition to the ordinary melody and chord tones |
Country Status (2)
Country | Link |
---|---|
US (1) | US3825668A (en) |
GB (1) | GB1399179A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105761713A (en) * | 2016-01-29 | 2016-07-13 | 北京精奇互动科技有限公司 | Chord changing processing method and device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3922943A (en) * | 1973-11-12 | 1975-12-02 | Nippon Musical Instruments Mfg | Electronic musical instrument provided with a voltage-controlled monophonic playing section operated by a manual or pedal tone-playing section |
US3940635A (en) * | 1974-08-29 | 1976-02-24 | D. H. Baldwin Company | Self-damping circuit |
US4148240A (en) * | 1977-08-15 | 1979-04-10 | Norlin Industries, Inc. | Percussion simulating techniques |
US4191082A (en) * | 1977-10-27 | 1980-03-04 | Nippon Gakki Seizo Kabushiki Kaisha | Key range dividing type electronic musical instrument |
US4282787A (en) * | 1980-02-19 | 1981-08-11 | Norlin Industries, Inc. | Electronic musical instrument simultaneously operable in monophonic and polyphonic modes |
US8664497B2 (en) | 2011-11-22 | 2014-03-04 | Wisconsin Alumni Research Foundation | Double keyboard piano system |
CN117118423B (en) * | 2023-10-18 | 2023-12-29 | 南通飞海电子科技有限公司 | Current distribution control method and system based on digital cash register keys |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2583566A (en) * | 1947-06-11 | 1952-01-29 | Hammond Instr Co | Electrical musical instrument |
US3215767A (en) * | 1962-01-23 | 1965-11-02 | Baldwin Co D H | Chorus effects in electronic organ |
US3247310A (en) * | 1962-09-13 | 1966-04-19 | Chicago Musical Instr Co | Musical instrument |
US3538806A (en) * | 1968-03-11 | 1970-11-10 | Baldwin Co D H | Tone processing system |
US3553335A (en) * | 1969-04-14 | 1971-01-05 | Baldwin Co D H | Electronic organ having plural tone sources and loudspeakers with alternate reiterative gating, cross gating, and method |
GB1327244A (en) * | 1969-09-09 | 1973-08-15 | Matsushite Electric Industrual | Coupler system for electronic musical instrument |
NL7015768A (en) * | 1969-10-29 | 1971-05-04 | ||
US3697664A (en) * | 1969-12-10 | 1972-10-10 | Nippon Musical Instruments Mfg | Electronic musical instrument having automatic bass tone selector |
NL169243C (en) * | 1970-02-16 | 1982-06-16 | Nippon Musical Instruments Mfg | ELECTRONIC MUSIC INSTRUMENT. |
US3582530A (en) * | 1970-03-11 | 1971-06-01 | Nippon Musical Instruments Mfg | Electronic musical instrument producing percussion signals by additive mixing of component signals |
US3671659A (en) * | 1970-04-06 | 1972-06-20 | Nippon Musical Instruments Mfg | Plural tone selector for an electronic musical instrument |
NL154027B (en) * | 1970-10-23 | 1977-07-15 | Philips Nv | ELECTRONIC MUSIC INSTRUMENT WITH VARIABLE COUPLING OF THE KEYBOARDS. |
US3749807A (en) * | 1971-04-14 | 1973-07-31 | T Adachi | Orchestral effect producing system for an electronic musical instrument |
US3709693A (en) * | 1971-04-26 | 1973-01-09 | Polaroid Corp | Novel photographic products and processes utilizing multicolor additive screens whose filter units are formed of development-diffusible dyes |
US3725560A (en) * | 1972-03-09 | 1973-04-03 | Jasper Electronics Mfg Corp | Chord playing organ |
US3745225A (en) * | 1972-04-27 | 1973-07-10 | G Hall | Musical instrument having automatic fill-in means |
-
1973
- 1973-05-29 US US00364257A patent/US3825668A/en not_active Expired - Lifetime
- 1973-05-30 GB GB2576573A patent/GB1399179A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105761713A (en) * | 2016-01-29 | 2016-07-13 | 北京精奇互动科技有限公司 | Chord changing processing method and device |
Also Published As
Publication number | Publication date |
---|---|
US3825668A (en) | 1974-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
48B9 | Specification amended (sect. 8 and 9/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |