WO1981001899A1 - Instrument musical electronique - Google Patents

Instrument musical electronique Download PDF

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Publication number
WO1981001899A1
WO1981001899A1 PCT/US1980/001690 US8001690W WO8101899A1 WO 1981001899 A1 WO1981001899 A1 WO 1981001899A1 US 8001690 W US8001690 W US 8001690W WO 8101899 A1 WO8101899 A1 WO 8101899A1
Authority
WO
WIPO (PCT)
Prior art keywords
envelope
output signal
digital
frequency
control circuit
Prior art date
Application number
PCT/US1980/001690
Other languages
English (en)
Inventor
T Norman
Original Assignee
T Norman
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by T Norman filed Critical T Norman
Priority to JP81500439A priority Critical patent/JPS56501814A/ja
Priority to DE8181900249T priority patent/DE3070543D1/de
Priority to BR8008992A priority patent/BR8008992A/pt
Publication of WO1981001899A1 publication Critical patent/WO1981001899A1/fr

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
    • G10H1/06—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour
    • G10H1/08—Circuits for establishing the harmonic content of tones, or other arrangements for changing the tone colour by combining tones
    • 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
    • G10H1/053—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 during execution only
    • G10H1/057—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 during execution only by envelope-forming circuits
    • 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
    • G10H5/06—Instruments in which the tones are generated by means of electronic generators using generation of basic tones tones generated by frequency multiplication or division of a basic tone
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/02—Preference networks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/30—Fret control

Definitions

  • the present invention relates to electronic music instruments.
  • 3,662,641 included both strings for bowing or plucking and touch actuated switches simulating a finger board.
  • the touch actuated switches apparently controlled the frequency of the music sounds or notes formed while strumming of the strings controlled amplitude and partially the rise and fall duration of the sounds and any desired special effects.
  • the present invention provides a new and improved electronic musical instrument which electronically forms output signals which have at least one frequency component and an amplitude defining envelope.
  • the output signals so formed simulate musical notes and chords from a stringed musical instrument.
  • Input circuits for each string receive from a user an indication of the output signal to be formed.
  • a digital circuit forms digital count signals defining the frequency component of the output signal to be formed.
  • An oscillator forms a reference clock frequency pulse signal which is provided to a digital counter.
  • the digital counter also receives the digital count signal from the digital circuit and divides the clock frequency by the digital count signal to form the output signal frequency.
  • An envelope control circuit then forms the envelope of the output signal so that musical notes and chords are simulated.
  • Fig. 1 is an isometric view of an instrument according to the present invention
  • Fig. 2 is a schematic electrical circuit diagram of an electronic circuit for simulating one string according to the present invention
  • Figs. 3, 4, 5 and 6 are schematic electrical circuit diagrams of certain components of the electronic circuit of Fig. 2; and Fig. 7 is a waveform diagram of an example waveform produced in the electronic circuit of Fig. 2.
  • the letter I designates generally an electronic musical instrument for electronically forming output signals to simulate musical notes and chords from a stringed musical instrument such as a guitar, ukulele, banjo or the like.
  • simulating is intended to mean that the instrument I may be played to produce audible music electronically by a user for entertainment or other purposes for which a stringed instrument is used, although the music notes and chords are formed in a different manner.
  • the instrument I electronically forms output signals having at least one frequency component and an amplitude defining envelope to simulate musical notes and chords from a stringed musical instrument.
  • the instrument I is preferably of the same general physical size and appearance as the type of instrument being simulated, for greater ease of operation and familiarity for a user.
  • the instrument I simulates an electric guitar and accordingly is in the form of a body portion or box 10 (Fig. 1) having a neck portion 12 extending outwardly therefrom to a head member 14.
  • a finger board or bridge 16 on the neck 12 has a plurality of lateral ridges or frets 20 formed thereon, much in the manner of an electric guitar or conventional stringed guitar.
  • the strings or prior guitars and the mechanical switches of the prior art electronic instruments discussed hereinabove have been replaced by capacitive or current/touch sensitive fret touch pads F which are provided on teh neck portion 12 in a series of transverse rows 22 extending between each adjacent pair of teh frets 20.
  • the touch pads F extend downwardly in a series of aligned rows 22 over the bridge 16, with each of the aligned rows of touch pads F intended to replace either the strings or mechanical switches of prior stringed or electronic instruments, respectively.
  • a plurality of current/touch sensitive string touch pads S are provided on a face portion 24 of the box 10. The number of touch pads S is equal in number to the number of strings on the instrument which is being simulated by the instrument I.
  • the touch pads F and S are of the type often used as input electrical switches which respond to contact by a finger of a user and sense the ambient electric current present in a person's body due to static electricity, ambient sixt hertz or other frequency electricity by becoming conductive in response to the electrical signal transferred thereto by the contact with the user's finger.
  • the fret touch pads F and the string touch pads S form a portion of an input means M for receiving an indication from the user of the output signal to be formed.
  • a plurality of input switches 26 equal in number to the string touch pads S and each associated with one of such touch pads, are mounted on the body portion 10 and permit, in a manner to be set forth below, the user to cause the instrument I to selectively form harmonic frequencies for the notes and chords being formed in the instrument I.
  • a group of control knobs 28 are also mounted on the body portion 10 and permit a user to specify the envelope of the output signal, in a manner to be set forth.
  • control knobs 30 again equal in number to the string touch pads S and each associated with one of such touch pads, are mounted on the body 10 to permit the user to indicate the level of the harmonic component for activated ones of the switches 26 in forming the musical notes and chords in the instrument I.
  • a master on-off switch 32 is further mounted on the instrument I to permit the user to turn the instrument I off when its use is not desired. Suitable power is provided from an electrical input at a suitable location on the body portion 10 of the instrument I to provide operating electrical power for the electronic circuits contained therein.
  • each of the string touch pads S simulating a location on the instrument for strumming of a string are electrically connected to an electronic circuit E (Fig. 2) so that, when activated, an output signal is electronically formed having at least one frequency component and an amplitude defining envelope to form a musical note or chord in the instrument I with components from each string touch pad S contacted. Since each of the electronic circuits for the various string touch pads S in the instrument I are of like construction and function, only one is set forth, in detail, it being understood that the remaining circuits are of like construction and function. Further, each of the fret touch pads F in a row 20 defining fret positions for one of the string touch pads is also connected to the electronic circuit E for the particular string touch pad associated therewith.
  • an envelope control or pulse shaping network 40 forms the envelope of the output signal through a voltage-controlled amplifier 42 which receives the output frequency signal so that the frequency component and the amplitude defining envelope forming the musical note or chord for the string touch pad S when contacted.
  • the output from the voltage controlled amplifier 42 for each of the particular string touch pads S contacted is provided to a mixer 44 which combines the various output signals from the voltage controlled amplifiers (VCA's) 42 and furnishes them to an output speaker so that an output signal simulating notes and chords from a musical instrument is formed by the instrument I.
  • VCA's voltage controlled amplifiers
  • Each of the fret touch pads F for the string associated therewith is electrically connected to the electronic circuit E through an individual touch circuit 46 (Fig. 2). As shown in Fig.
  • each touch circuit 46 includes an amplifier 48, diode 50, resistor 52 and capacitor 54 configured to function as a Schmitt trigger circuit which changes from a high to a low output level at the common point between diode 50 and resistor 52 when the touch pad F associated therewith is contacted by a user's finger.
  • An inverter 56 responds by forming a high voltage level which is provided to one of two priority encoder or selector circuits 58 (Fig. 2).
  • the priority encoder/selector circuits 58 respond by determining which, of the touch pads F corresponding to the highest frequency note for the string touch pad S associated with electronic circuit E has been contacted by a user and forms a four bit binary number representing the highest frequency has been contacted by the user's fingers.
  • the four bit binary number formed in the priority encoders 58 is provided directly via one bit to a decoder/demultiplexer circuit 60 of the digital circuit 36 and for the remaining three bits through parallel NOR gates for each bit through NOR gating circuits 62 to the decoder/demultiplexer 60.
  • the decoder/demultiplexer 60 decodes the four bit number and provides an input signal on a particular one of a plurality of output conductors 64, one for each of the touch circuits 46, to a digital gating circuit 66 (Figs. 2 and 5) in accordance with the particular one of the touch circuits 46 activated in the input means M for the highest frequency.
  • the gate matrix 66 receives the input signal designating the touch circuit 46 selected by the user and forms a sixteen bit digital code number defining the amount by which the output frequency of the clock 34 is to be divided by series connected counting shift registers 68, 70, 72 and 74 of the digital counter 38 to form the output signal frequency.
  • the output signal frequency is at a predetermined integer multiple (such as ten) of the output frequency of the specified signal to be formed, for reasons to be set forth.
  • the following six charts set forth the various sixteen bit digital codes formed in the gate matrices 66 for each of the six simulated strings of a guitar for the various fret positions indicated by the decoder/ demultiplexer 60:
  • Charts 4, 5, and 6 indicate that greater than the thirteen inputs (shown in Fig. 5) are needed as inputs for certain fret positions for the "G", "B” and “E” strings.
  • additional bit number outputs would be provided to the shift register 68 over conductors 75 (Fig. 2) directly connected to the higher bit number outputs from decoder/demultiplexer 60.
  • the output frequency of the digital counter 38 is furnished to a frequency divider 76 and a frequency divider 78 so that an output signal at the designated frequency is provided as a first input to an integrator circuit representing the output frequency content of the output signal to be formed for the string touch pad S associated therewith.
  • the frequency divider 76 further divides the input signal from the shift register 74 into other submultiples of the input frequency tothereby form harmonics which are selectively furnished, provided the switches 26 associated therewith are closed, through a variable resistor 82 to the integrator 80.
  • the impedance value of the variable resistor 80 is controlled by the control knob 30 on the face portion 24 (Fig. 1) associated with the particular string touch pad S so that the amplitude of the selected harmonic contents, if any, of the output signal. to be formed may be varied.
  • the integrator 80 combines the selected harmonics and the output frequency signal from the frequency divider 78 to form the frequency content of the output signal which is provided to the voltage controlled amplifier 42.
  • a sinusoidal waveform 84 illustrates in simplified format the frequency content of an example output signal formed in accordance with the present invention.
  • the waveform 84 is contained within an envelope defining waveform 86.
  • the envelope waveform 86 has an attack slope 88 during an attack time 90 defined by the pulse shaping network 40 and furnished through a buffer amplifier 92 to define initial portions of the output signal formed.
  • the pulse shaping network 40 further defines the fallback slope 92 by which the initial attack amplitude decreases to a sustain amplitude 9-4 and is held for the duration of a sustain time 96 defined in the pulse shaping network 40.
  • the pulse shaping network 40 further defines the decay slope 98 of the envelope of the output signal formed by the voltage controlled amplifier 42.
  • the pulse shaping network or envelope control circuit 40 (Fig.
  • a touch circuit 100 which is electrically connected to one of the string touch pads S on the face portion 24.
  • the touch circuit 100 is of like structure and operation to the touch circuits 46 (Fig. 3). Accordingly, structural details of the touch circuit 100 are not shown in the drawings.
  • an attack time control circuit 102 and a sustain time control circuit 104 control the attack time 90 and sustain time 96 of the envelope 86 (Fig. 7), respectively. Further, an attack slope control circuit 106 and a fall back slope control circuit 108 (Fig. 6) control the attack slope 88 and fallback slope 92 of the envelope 86 (Fig. 7).
  • a sustain amplitude control circuit 110 (Fig. 6) and a decay rate control circuit 112 define the sustain amplitude 94 and the decay rate 98 of the envelope 86 (Fig. 7).
  • a sustain amplitude control circuit 110 (Fig. 6) and a decay rate control circuit 112 define the sustain amplitude 94 and the decay rate 98 of the envelope 86 (Fig. 7).
  • Each of the foregoing control circuits in the envelope control circuit 40 has a potentiometer 114 associated therewith and controlled by one of the control knobs 28 (Fig. 1) to permit a user of the instrument I to define the various parameters of the envelope 86 to be formed for each of the strings in the instrument I.
  • Each of the potentiometers 114 is of like structure, but of course may be individually set by the knob 28 connected therewith so that the six various parameters of the envelope 86 may be individually adjusted according to a user's desired output musical note or chord.
  • each of the potentiometers 114 receives operating electrical power at an input terminal 116 so that electric current flows through a variable resistor 118 whose resistance value is controlled by a movable wiper arm 120 moving in response to adjustment of the knob 28 (Fig. 1) associated therewith.
  • Each of the potentiometers 114 has a light emitting diode 122 or other suitable light emitting semiconductor electrically connected thereto so that variations in the resistance value of the variable resistor 118 by adjustment of the control knob 28 varies the current flowing through the light emitting diode 122, and accordingly the output light intensity thereof.
  • the light output intensity from light emitter 122 connected to the potentiometer 114 controls the amount of current which flows through a photoresistor 124, and accordingly controls the duration of time that a timer semiconductor 126 provides an output signal at an output terminal 126a in response to activation by the touch circuit 100.
  • a phototransistor 128 of the sustain time control circuit 104 conducts at a current intensity controlled by a light emitter 122 associated therewith and controls the time duration that a timer semiconductor 128 provides an output signal at an output terminal 128a.
  • the light intensity reaching the photoresistor 128 is controlled by one of the knobs 28 which, sets the potentiometer 114 associated with sustain time control circuit 104.
  • the time duration that the timer semiconductor 126 forms an output signal specifies the attack time 90 (Fig. 7) for the envelope 86.
  • the time duration that the timer semiconductor 128 forms an output signal specifies the sustain time 96 for the envelope 86.
  • a capacitor 130 (Fig. 6) in the envelope control circuit 40 is charged by electrical current flowing through a photoresistor 132 of the attack slope control circuit 106.
  • the intensity of current flowing through the photoresistor 132 is controlled by the light output of the light emitter 122 connected to potentiometer 104 of the attack slope control circuit 106. Consequently, the amount of current flowing into the capacitor 130 to charge the capacitor is controlled by the setting of the knob 28 associated with attack slope control circuit 106.
  • the charge accumulating in the capacitor 130 during the attack time 90 represents a voltage which is provided as a input signal to a buffer amplifier 134 to define the attack slope 88 (Fig. 7) formed by the voltage controlled amplifier 42 (Fig. 6).
  • the charge accumulated in the capacitor 130 is partially drained through a photoresistor 136 of the fallback control circuit 108.
  • the amount of current permitted to flow through the photoresistor 136 is controlled by the light emitter 122 and potentiometer 114 in response to the setting of the control knob 28 associated therewith and thus the declining output of buffer amplifier 134 is response to current drain from capacitor 130 through transistor 144 defines the fallback slope 92 (Fig. 6).
  • the draining of current from the capacitor 130 (Fig. 6) through the photoresistor 136 continues until a voltage level specified by photoresistors 140 and 142 of the sustain amplitude control circuit 110 is reached.
  • the amount of electrical current flowing through the photoresistors 140 and 142 is set by the control circuit 110 so that the voltage level represented by the stored charge on the capacitor 130 at the time at the photoresistor 136 ceases conducting represents, after amplification in the buffer amplifier 134, the control signal provided to the voltage controlled amplifier 4,2 to form the sustain amplitude 94 (Fig. 7) of the envelope 86.
  • the sustain amplitude 94 of the envelope 86 is maintained by the voltage control amplifier due to the charge on the capacitor 130 (Fig. 6) until timer 128 ceases forming an output signal, indicating that the sustain time '96 has elapsed.
  • the charge remaining stored in the capacitor 130 is drained by means of a photoresistor 144 of the decay rate control circuit 112.
  • the rate of flow of current through the photoresistor 144 is controlled by a light emitter 122 in response to the setting of a potentiometer 114 by the control knob 28 on the face portion of the instrument I to define the decay slope 98 (Fig. 7) of the envelope 86.
  • the user of the instrument I sets the input knobs 28 on the face portion 24 in accordance with the desired configuration of the envelope 85.to be formed in envelope control circuit 40 for the notes and chords. If harmonic signals are desired, the user sets the particular ones of the switches 26 of the input means M according to the particular harmonics desired, and sets the knobs 30 to control the potentiometers 82 for each of the string pads S for which harmonics are desired.
  • the output frequency from the clock 34 is divided in the digital counter 38 in response to the digital count from the digital circuit 36 to form the output signal frequency. If desired, as specified by the switches 26 of the input means M, harmonics are furnished to the integrator 80 in addition to the output signal frequency, and where the harmonic signals are combined with the output signal frequency.
  • the output of. integrator 80 is provided to the voltagecontrolled amplifier 42 to specify the frequency content of the output signal for the string touch pad S associated therewith.
  • the settings of the control knobs 28 specify the envelope of the signal formed in the pulse shaping network 40 for the string touch pads S contacted by the user's fingers so that the buffer amplifier 134 drives the voltage controlled amplifier 42 causing the envelope 86 to be formed for the output signal for the particular string touch pad S associated therewith.
  • the outputs from the various voltage control amplifiers 42 for each of the string touch pads S are summed in the mixer 44 and provided as the output signal to a loud speaker, recording device or other suitable output means for listening, recording or other use.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electrophonic Musical Instruments (AREA)

Abstract

Un instrument musical electronique (1) simule un instrument musical a cordes tel qu'une guitare. Les sons musicaux de frequence et d'enveloppe appropriees sont produits. Un oscillateur (34) fournit une frequence d'horloge de reference a un compteur digital (38) qui est commande par des circuits de toucher (46) et un circuit digital (36) pour diviser la frequence d'horloge de reference en une frequence de sortie appropriee. Un circuit de commande d'enveloppe (40) forme la frequence de sortie pour simuler un instrument musical a cordes.
PCT/US1980/001690 1979-12-21 1980-12-19 Instrument musical electronique WO1981001899A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP81500439A JPS56501814A (fr) 1979-12-21 1980-12-19
DE8181900249T DE3070543D1 (en) 1979-12-21 1980-12-19 Electronic music instrument
BR8008992A BR8008992A (pt) 1979-12-21 1980-12-19 Instrumento musical eletronico

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/105,972 US4339979A (en) 1978-12-21 1979-12-21 Electronic music instrument
US105972 1979-12-21

Publications (1)

Publication Number Publication Date
WO1981001899A1 true WO1981001899A1 (fr) 1981-07-09

Family

ID=22308778

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1980/001690 WO1981001899A1 (fr) 1979-12-21 1980-12-19 Instrument musical electronique

Country Status (6)

Country Link
US (1) US4339979A (fr)
EP (1) EP0042005B1 (fr)
JP (1) JPS56501814A (fr)
BR (1) BR8008992A (fr)
DE (1) DE3070543D1 (fr)
WO (1) WO1981001899A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2419218A (en) * 2004-10-13 2006-04-19 James Eric Brown Apparatus for enabling a guitar student to practice fingering positions
WO2007028220A2 (fr) * 2005-09-06 2007-03-15 Martins Anderson De Oliveira Instruments de musique numeriques - vian

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004619A1 (fr) * 1983-05-10 1984-11-22 Synthaxe Ltd Instrument musical electronique
US4570521A (en) * 1984-03-30 1986-02-18 Jeffrey Fox Electronic musical instrument with string-simulating switches
US4794838A (en) * 1986-07-17 1989-01-03 Corrigau Iii James F Constantly changing polyphonic pitch controller
JPH01160498U (fr) * 1988-04-25 1989-11-07
JP2508186B2 (ja) * 1988-05-18 1996-06-19 ヤマハ株式会社 楽音制御装置
JPH02176792A (ja) * 1988-12-28 1990-07-09 Casio Comput Co Ltd 電子弦楽器
GB8917005D0 (en) * 1989-07-21 1989-09-13 Cole John F Guitar-style synthesizer-controllers
CZ287749B6 (cs) * 1996-03-05 2001-01-17 Ivan Ing. Mládek Bezestrunný drnkací pražcový nástroj
US5739455A (en) * 1996-12-17 1998-04-14 Poon; Yiu Cheung Electronic guitar music simulation system
US6075194A (en) * 1997-07-08 2000-06-13 Gibson Guitar Corp. Component mount and components for musical instruments
US6777608B1 (en) 2002-01-12 2004-08-17 Travis Redding Integrated sound trigger musical instruments
US20050002643A1 (en) * 2002-10-21 2005-01-06 Smith Jason W. Audio/video editing apparatus
DE60333368D1 (de) * 2003-10-02 2010-08-26 Procter & Gamble Absorbierender Artikel mit elastomerischem Material
US7115810B2 (en) * 2004-07-15 2006-10-03 Ambrosonics, Llc Programmable/semi-programmable pickup and transducer switching system
US7812244B2 (en) * 2005-11-14 2010-10-12 Gil Kotton Method and system for reproducing sound and producing synthesizer control data from data collected by sensors coupled to a string instrument
WO2007124387A2 (fr) 2006-04-19 2007-11-01 Allegro Multimedia, Inc. Système et procédé d'instruction d'une alphabétisation musicale et interprétation d'un instrument à cordes
US8003874B2 (en) * 2006-07-03 2011-08-23 Plato Corp. Portable chord output device, computer program and recording medium
US7598449B2 (en) * 2006-08-04 2009-10-06 Zivix Llc Musical instrument
US20080236374A1 (en) * 2007-03-30 2008-10-02 Cypress Semiconductor Corporation Instrument having capacitance sense inputs in lieu of string inputs
US7777117B2 (en) * 2007-04-19 2010-08-17 Hal Christopher Salter System and method of instructing musical notation for a stringed instrument
JP2010541005A (ja) * 2007-09-29 2010-12-24 エリオン，クリフォード，エス． 弦楽器用電子指板
US8093482B1 (en) * 2008-01-28 2012-01-10 Cypress Semiconductor Corporation Detection and processing of signals in stringed instruments
US20100083808A1 (en) * 2008-10-07 2010-04-08 Zivix Llc Systems and methods for a digital stringed instrument
US7897866B2 (en) * 2008-10-07 2011-03-01 Zivix Llc Systems and methods for a digital stringed instrument
US8173887B2 (en) * 2008-10-07 2012-05-08 Zivix Llc Systems and methods for a digital stringed instrument
WO2010069014A1 (fr) * 2008-12-17 2010-06-24 Edson Rodrigues Guitare avec clavier électronique
US8357846B2 (en) * 2009-06-12 2013-01-22 Progressive Specialty Glass Co., Inc. Novelty food and beverage vessel and coin bank
US8710337B1 (en) 2010-03-31 2014-04-29 Fernando R. Gomes Tone enhancement bracket
US8796531B2 (en) 2010-07-15 2014-08-05 Ambrosonics, Llc Programmable pickup director switching system and method of use
WO2013106459A1 (fr) * 2012-01-10 2013-07-18 Artiphon, Llc Instrument de musique électronique ergonomique à pseudo-cordes
US9812107B2 (en) * 2012-01-10 2017-11-07 Artiphon, Inc. Ergonomic electronic musical instrument with pseudo-strings
US8847051B2 (en) * 2012-03-28 2014-09-30 Michael S. Hanks Keyboard guitar including transpose buttons to control tuning
US9947237B2 (en) * 2015-09-30 2018-04-17 Douglas Mark Bown Electronic push-button contrabass trainer
US10157602B2 (en) * 2016-03-22 2018-12-18 Michael S. Hanks Musical instruments including keyboard guitars
US10621963B2 (en) 2018-01-05 2020-04-14 Harvey Starr Electronic musical instrument with device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340343A (en) * 1964-05-06 1967-09-05 Baldwin Co D H Stringless guitar-like electronic musical instrument
US3555166A (en) * 1968-03-19 1971-01-12 Robert A Gasser Guitar-like electronic musical instrument with plural manuals
US3939751A (en) * 1974-09-16 1976-02-24 Motorola, Inc. Tunable electrical musical instrument
US4085645A (en) * 1976-10-29 1978-04-25 Motorola, Inc. Instantly retunable tone generator for an electronic musical instrument
US4177705A (en) * 1978-12-28 1979-12-11 Evangelista Fred J Stringless electronic musical instrument

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1282364A (en) * 1969-07-11 1972-07-19 Mario Ranzato Electronic instruments for simulating stringed instruments
US3662641A (en) * 1970-10-01 1972-05-16 Joseph Stevens Allen Electronic musical apparatus
JPS5723279B2 (fr) * 1972-06-03 1982-05-18
US3886836A (en) * 1973-04-11 1975-06-03 Nippon Musical Instruments Mfg Electronic musical instrument capable of generating tone signals having the pitch frequency, tone color and volume envelope varied with time
JPS52117118A (en) * 1976-03-26 1977-10-01 Shiyouzou Sugiyama Dfaft keyboard for electronic instrument
JPS52151021A (en) * 1976-06-11 1977-12-15 Kawai Musical Instr Mfg Co Electronic stringed instrument

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3340343A (en) * 1964-05-06 1967-09-05 Baldwin Co D H Stringless guitar-like electronic musical instrument
US3555166A (en) * 1968-03-19 1971-01-12 Robert A Gasser Guitar-like electronic musical instrument with plural manuals
US3939751A (en) * 1974-09-16 1976-02-24 Motorola, Inc. Tunable electrical musical instrument
US4085645A (en) * 1976-10-29 1978-04-25 Motorola, Inc. Instantly retunable tone generator for an electronic musical instrument
US4177705A (en) * 1978-12-28 1979-12-11 Evangelista Fred J Stringless electronic musical instrument

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0042005A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2419218A (en) * 2004-10-13 2006-04-19 James Eric Brown Apparatus for enabling a guitar student to practice fingering positions
WO2007028220A2 (fr) * 2005-09-06 2007-03-15 Martins Anderson De Oliveira Instruments de musique numeriques - vian
WO2007028220A3 (fr) * 2005-09-06 2007-05-18 De Oliveira Martins Anderson Instruments de musique numeriques - vian

Also Published As

Publication number Publication date
US4339979A (en) 1982-07-20
DE3070543D1 (en) 1985-05-23
EP0042005A1 (fr) 1981-12-23
JPS56501814A (fr) 1981-12-10
BR8008992A (pt) 1981-10-20
EP0042005A4 (fr) 1982-06-10
EP0042005B1 (fr) 1985-04-17

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