US3803338A - Electronic musical instrument having pedal tone prominence circuit - Google Patents

Electronic musical instrument having pedal tone prominence circuit Download PDF

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Publication number
US3803338A
US3803338A US00212951A US21295171A US3803338A US 3803338 A US3803338 A US 3803338A US 00212951 A US00212951 A US 00212951A US 21295171 A US21295171 A US 21295171A US 3803338 A US3803338 A US 3803338A
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US
United States
Prior art keywords
tone
circuit
pedal
manual
keyboard
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Expired - Lifetime
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US00212951A
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English (en)
Inventor
T Adachi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Gakki Co Ltd
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Nippon Gakki Co Ltd
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    • 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

Definitions

  • An electronic musical instrument comprises a manual keyboard with an associated manual tone playing cir- [30] Foreign Application Priority Data cuit and a pedal keyboard with an associated pedal Dec. 28, 1970 Japan 45-119632 tone Playing Circuit T0 the Pedal 0116 Playing Circuit is added a pedal tone prominence circuit comprising 52 us. c1 84/1.17, 84/11 1, 84/l.l9 an additional I999 coloring circuit for increasing 51 Int. Cl.
  • pedal tone has increased harmonic components. 3,565,995 2/1971 Bunger 84/l.17 3,488,515 1/1970 Hiyoshi 84/].01 X 3 Claims, 1 Drawing Figure LOWER KEYBOARD TONE GEVERATOR TONE KEYER TONE-COLOR CIRCUIT MNQ T PEDAL KEYBOARD ELECTRONIC MUSICAL INSTRUMENT HAVING PEDAL TONE PROMINENCE CIRCUIT BACKGROUND OF THE INVENTION
  • This invention relates generally to an electronic musical instrument,v and more particularly, to an electronic musical instrument having a pedal tone prominence circuit which renders the tone color of the pedal tones automatically variable in such a manner that the pedal tones have more harmonic components when the manual tones are being played together than when the pedal tone is being played alone.
  • tone-color circuits may be so designed that more harmonic content is included.
  • this method may be satisfactory for the production of clear pedal tones in the case of simultaneous production of the manual and pedal tones, favorable pedal tones could not be obtained in the case of production of pedal tones alone.
  • FIGURE in the drawing is a block diagram showing the essential organization of an embodiment of this invention.
  • tone generators 1 there are provided tone generators 1, and musical tone signals generated by the generators 1 are supplied to upper keyboard tone keyers 2 associated with an upper manual keyboard UK, lower keyboard tone keyers 3 associated with a lower manual keyboard LK, and a latching selector 4 for selecting a single desired tone signal at a time from among a plurality of tone signals.
  • Musical tone signals from the upper and lower keyboard tone keyers 2 and 3 pass respectively through tone-color circuits 5 and 6 and level controls TVR, and TVR and through a manual balancer MB, an amplifier A an expression control VC, and a main amplifier A for conversion into sound via a loudspeaker SP.
  • a signal from the latching selector 4 is frequency-divided by a frequency divider 7 before being supplied to a pedal keyboard tone keyer 8.
  • This arrangement including the latching selector 4, the frequency divider 7 and the tone keyer 8 is now used in electronic musical instruments available in the market, and is described in US. Pat. Nos. 3,488,515 to I-Iiyoshi and 3,598,892 to Yamashita.
  • a pedal tone signal from the pedal keyboard tone keyer 8 is supplied to each of a first tone-color circuit 9 and a second tone-color circuit 10.
  • a tone gate circuit 11 is connected to the output of the second tone-color circuit 10, and the outputs of the tone gate circuit 11 and the first tone-color circuit 9 are fed to a level control TVR
  • the level control TVR,, and the manual balancer MB constitute a manual tone playing circuit
  • the tone generators I, the latching selector 4, the frequency divider 7, the tone keyer 8, the tone-color circuit 9 and the level control TVR constitute a pedal tone playing circuit.
  • a portion of the musical tone signal from the lower keyboard tone keyer 3 is supplied to a gating signal shaper 12 of the type as shown in US. Pat. No. 3,565,995 to Bugner, for detecting the existence of the lower keyboard tone signal and producing a gating signal which is supplied subsequently to the gating terminal of the tone gate circuit 11.
  • Gating signal shaper 12 constitutes a well-known functional element in the electronic musical instrument art and is of conventional construction, such as is shown in US. Pat. No. 3,609,203 to Adachi.
  • the tone gate circuit 11 permits the musical tone signal from the second tone-color circuit 10 to pass therethrough to the output side only in the case of application of the gating signal.
  • An electronic musical instrument comprising a manual keyboard; a'manual tone playing circuit having circuit elements including tone generators, tone keyers connected to said tone generators, and a tone-color circuit connected to said tone keyers,'said tone keyers being associated with said manual keyboard; a pedal keyboard; a pedal tone playing circuit including tone generators, a tone keyer connected to said tone generators, and a first tone-color circuit for pedal tone signals connected to said tone keyer, said tone keyer being associated with said pedal keyboard; a series connection of a second tone-color circuit which only passes pedal tone signals and a tone gate circuit, said series con nected second tone-color circuit and tone gate being connected in parallel with said first tone-color circuit; said second tone-color circuit having a tone coloring characteristic of passing more harmonic components of pedal tones than said first tone-color circuit; and a gating signal shaper means coupled between said tone keyer and said tone color circuit of said manual tone playing circuit and said tone gate circuit for producing a gating signal in response to the presence of tone signals generated by said manual

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)
US00212951A 1970-12-28 1971-12-28 Electronic musical instrument having pedal tone prominence circuit Expired - Lifetime US3803338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45119632A JPS5010152B1 (enrdf_load_stackoverflow) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
US3803338A true US3803338A (en) 1974-04-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00212951A Expired - Lifetime US3803338A (en) 1970-12-28 1971-12-28 Electronic musical instrument having pedal tone prominence circuit

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US (1) US3803338A (enrdf_load_stackoverflow)
JP (1) JPS5010152B1 (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886834A (en) * 1973-05-11 1975-06-03 Nippon Musical Instruments Mfg Electronic musical instrument capable of modulation controlling a second keyboard section tone signal in accordance with a first keyboard section tone signal
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
US4002095A (en) * 1974-11-13 1977-01-11 Nippon Gakki Seizo Kabushiki Kaisha Waveform converter for use with an electronic musical instrument and capable of controlling the duty factor of a rectangular wave tone signal
US4114497A (en) * 1975-09-29 1978-09-19 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument having a coupler effect
US4141270A (en) * 1977-06-23 1979-02-27 Hammond Corporation Modulated keyer supply sampling circuit
US4191082A (en) * 1977-10-27 1980-03-04 Nippon Gakki Seizo Kabushiki Kaisha Key range dividing type electronic musical instrument
US4223584A (en) * 1978-01-10 1980-09-23 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
US4379422A (en) * 1977-08-15 1983-04-12 Baldwin Piano & Organ Company Polyphonic electronic music system
US4391176A (en) * 1979-09-08 1983-07-05 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument with musical composition fashion selectors
WO1998013817A1 (fr) * 1996-09-25 1998-04-02 Jury Alexeevich Storchakov Dispositif permettant de jouer du piano en appuyant sur des touches choisies au hasard

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886834A (en) * 1973-05-11 1975-06-03 Nippon Musical Instruments Mfg Electronic musical instrument capable of modulation controlling a second keyboard section tone signal in accordance with a first keyboard section tone signal
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
US4002095A (en) * 1974-11-13 1977-01-11 Nippon Gakki Seizo Kabushiki Kaisha Waveform converter for use with an electronic musical instrument and capable of controlling the duty factor of a rectangular wave tone signal
US4114497A (en) * 1975-09-29 1978-09-19 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument having a coupler effect
US4141270A (en) * 1977-06-23 1979-02-27 Hammond Corporation Modulated keyer supply sampling circuit
US4379422A (en) * 1977-08-15 1983-04-12 Baldwin Piano & Organ Company Polyphonic electronic music system
US4191082A (en) * 1977-10-27 1980-03-04 Nippon Gakki Seizo Kabushiki Kaisha Key range dividing type electronic musical instrument
US4223584A (en) * 1978-01-10 1980-09-23 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument
US4391176A (en) * 1979-09-08 1983-07-05 Nippon Gakki Seizo Kabushiki Kaisha Electronic musical instrument with musical composition fashion selectors
WO1998013817A1 (fr) * 1996-09-25 1998-04-02 Jury Alexeevich Storchakov Dispositif permettant de jouer du piano en appuyant sur des touches choisies au hasard

Also Published As

Publication number Publication date
JPS5010152B1 (enrdf_load_stackoverflow) 1975-04-18

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