EP0096022A1 - Control apparatus for electronic instruments - Google Patents

Control apparatus for electronic instruments

Info

Publication number
EP0096022A1
EP0096022A1 EP81903271A EP81903271A EP0096022A1 EP 0096022 A1 EP0096022 A1 EP 0096022A1 EP 81903271 A EP81903271 A EP 81903271A EP 81903271 A EP81903271 A EP 81903271A EP 0096022 A1 EP0096022 A1 EP 0096022A1
Authority
EP
European Patent Office
Prior art keywords
string
strings
control equipment
joint plates
fingerboard
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.)
Withdrawn
Application number
EP81903271A
Other languages
German (de)
French (fr)
Other versions
EP0096022A4 (en
Inventor
Károly THURANSZKY
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0096022A1 publication Critical patent/EP0096022A1/en
Publication of EP0096022A4 publication Critical patent/EP0096022A4/en
Withdrawn legal-status Critical Current

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
    • G10H1/32—Constructional details
    • G10H1/34—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments
    • G10H1/342—Switch arrangements, e.g. keyboards or mechanical switches specially adapted for electrophonic musical instruments for guitar-like instruments with or without strings and with a neck on which switches or string-fret contacts are used to detect the notes being played

Definitions

  • the invention relates to a control apparatus for electronic instruments, in particular for synchetizers or orgatrons. Since the appearance of the electric guitars several devices have been developed which render the guitar suitable partly for imitating other musical instruments, partly for producing new tones, as for example the distorting, extending devices, the dynamics compressor, the phase shifter, the quacking, twanging and echoing cfevices. These equipments are trans forming the signal having been picked-up via the pick-up of the guitar. Their common drawback lies in the limited length of decay, the tendency to excitation and the high producing costs.
  • the synthetizer is surpassing the range of the possible sounds to be generated in the previously described manner by orders of magnitude. With the synthetizers choosing of the tones is taking place in such a manner that by means of a switch system having been mounted onto the keyboard of the piano, the output vol tage of a voltage transmitter is changed and the voltage controlled oscillators are driven by the modified voltage.
  • the aim of the invention is to produce a control equipment, which is well suitable for a control of an orgatron or a synthetizer as an electronic instrument, having a layout being similar to that of the stringed instruments being provided with a fingerboard or a joint plate, and the mode of playing is also in compliance with that of said instruments.
  • the equipment according to the invention being suitable for electronic instruments, in particular for synthetizers or orgatrons, is containing a stringed instrument.
  • the fingerboard, the joint plates, the strings are made of electrically conductive materials and form between the voltage source and the output/s/ a circuit to be closed by pressing down the strings.
  • the strings are made of a resistance wire.
  • resistors and/or potentiometers are connected between the strings and/or the joint plates.
  • either the joint plates or the strings are connected to the voltage sources.
  • the joint plates are subdivided into scetions having been arranged below the strings and being isolated from each other.
  • the strings H l -H m are connected to voltag sources, which are preferably realized by means of resistors or a voltage divider consisting of the potenti meters P Ul -P Um and by means of the transistors T l -T m having been connected via their basis to the voltage divider.
  • the emitter of the transistors T l -T m is connec ed to the strings.
  • the voltage divider and the transis tors, respectively, are fed by the voltage source U G .
  • the joint plates B l -B m are connected to the output K of the control equipment, via the resistor-chain consisting of the potentiometers P l -P n .
  • the input of the operational amplifier A having been provided with the feedback resistor R is also connected to the output K.
  • the circuit arrangement according to figure 1 operates as follows:
  • the voltage divider P Hl -P Hm generates the string voltages, which are in the same proportion, as the tuning frequencies.
  • the grounded collector connection of the transistors T l -T m ensures the low output impedance and thereby the voltage-generated drive of the inverting base circuit arrangement.
  • the emitter-base diodes of the transis tors T l -T m are forming a logical circuit arrangement; when several strings are simultaneously pressed, the voltage corresponding to the highest string will prevail.
  • the vol tages having been applied onto the strings - the proportion of which is corresponding to the desired proportion of frequencies between the strings - are actuating the ba sic circuit arrangement incorporating the operational amp lifier A.
  • the resistor-chain containing the potentiometers P l -P m having been connected to the joint plates B l -B n is arranged, out of which - in dependence of the strings having been pressed down - potentiometers in a varying number are connected in series with the input of the operational amplifier A.
  • the voltage appearing on the output K U of the .operational amplifier will change in dependence of the series resistance having been connected to the input, supposed, that the feedback resistor R v is constant.
  • the output K U of the operational amplifier is delivering the control voltage for the voltage-controlled oscillators having been connected directly to said output or through the shaping, filtering and other circuits, respectively.
  • the interconnected strings H l -H n are connected to the voltage source U G .
  • the condensers C l -C 3 are connected to the output of the resistor-chain containing the potentiometers P 1 -P n via the string selecting switches K 1 -K 3 , so e.g. three string selecting switches suffice for the distrinction of the six strings of the guitar.
  • the output K is connected to the hysteresis comparator KO, while the output thereof is connected to the basis of the transistor T F
  • the transistor T F is supplied with voltage from the output K.
  • the circuit arrangement according to figure 2 operates, as follows:
  • the condenser/s/ C 1 -C 3 connected to the circuit arrangement is /are/ beginning to the charged up to the supply voltage U G through the string pressed down, the joint plate being in contact with the same and on the part of the resistor-chain having been determined by the place of contact.
  • the comparator KO is tilting, the condenser is discharged by the transistor T F .
  • the comparator is tilted back, the process begins anew, meanwhile a pulse appears on the output E-p.
  • the frequency of the output pulses will be inversely proportional to the time constant of the RG member consisting of the potentiometers P l -P n having been selected by pressing down the string, i.e. of the condensers C 1 -C 3 having been selected by means of the string selecting switches K l -K 3 .
  • the joint plates B l -B n are subdivided into as many sections as the number of the strings, the sections of the joint plates are to be arranged below the strings and to be isolated from each other.
  • the series of the joint plate sections having been arranged below the single strings H l -H m are connected to the outputs K l -K m of the control equipment via a resistor-chain each.
  • the resistor-chains contain the potentiometers P ll - P ln , P 2l - P 2n , P ml - P mn .
  • the transmitters transmitting the control voltage - as already mentioned - having been realized by means of the operational amplifier A l -A m are connected to the outputs K l -K m .
  • the main advantage of the polyphonic music instru ment - compared to the traditional polyphonic orgatrons lies in that the number of the components required amounts but to the fraction of the traditionally needed components.
  • the voltage source U G is connected to the resistor-chain con taining the potentiometers having been connected to the joint plates B l -B n .
  • the strings H l -H m are forming the output K l -K m of the control equipment, which is connected to the resistor-chain containing the potentiometers P Hl -P Hm being connected between the input and output of the operational amplifier A.
  • the essential feature of the operation of the embodiment according to figure 4 lies in, that when pressing a string, a part of the resistor-chains being connected to the joint plates B l -B n and the strings H l -H m will be connect ed in series with the input of the operational amplifier while the other part is connected to the feedback branch of the amplifier, accordingly, the output voltage of the operational amplifier A will change in dependence of the pressed string and of the position of the joint plate being in contact therewith.
  • each or any other voltage i.e. frequency generating unit is connected to the outputs K l -K m .
  • the strings H-,-H are made of a resistance wire. Accordingly, the resistor-chain having been arranged between the joint plates becomes superfluous, i.e. the solution according to the invention may be well used to stringed instruments being provided with a fingerboard. In this case, to achieve a proper contact surface, the fingerboard should be made of an electricalljr conductive material.
  • the interconnected joint plates B l -B n or the fingerboard are connected to the voltage source U G , while the operational amplifiers A l -A m - already mentioned before - are connected to the outputs K l -K m .
  • the strings may be prepared in such a manner, too, that the resistance wire is wound onto a synthetic wire or an insulated steel wire.
  • the voltage generators are connected to the strings H l -H m .
  • the voltage generators are realized by means of the operationa amplifiers A l -A m being connected to the voltage dividers having been built-up of the potentiometers P l -P m and by means of the emitter-tracking units built-up of the trans istors being connected with their bases to the output of the operational amplifiers A l -A m
  • the task of the operational amplifiers A l -A m lies in to reduce the output impedance of the voltage generators mentioned above, while the emitter-base diode of the transistors T l -T m are for a logical circuit arrangement, which activates the voltage of the string of the highest voltage out of the strings having been simultaneously pressed, on the joint plates coming into contact v/ith the joints.
  • the voltages of the strings can be adjusted by means of the potentiometers P l -P m in accordance with the desired tuning frequency proportion.
  • the ladder-circuit consisting of the resistors R ll - R ln ; R 21 - R 2n and R k in connected to the joints, which is attenuating the voltage of the strings in accordance v/ith the sound hold.
  • the U k i control voltage - being proportional to the frequency of the hold sound, appears on the output of the operational amplifiers A k , used as a voltage tracking unit.
  • the embodiment having been illustrated in figure 7, operates as follows:
  • the series of resistors consisting of the resistors R l -R n are forming the serial branch of the hysteresis comparator having been built-up of the operational amplifiers A 2 , while the series of resistors comprising the potentiometers P l -P m are forming the positive feedback branch thereof.
  • the operational amplifier A 1 is functioning as an integrator and together with the hysteresis comparator mentioned above, it is forming a waveform generator, the output frequency of which is proportional to the frequency of the hold string.
  • the series of resistors connecting the joints B 1 -B n are connect ed to the voltage source U g .
  • the strings H l -H m are connected by means of the potentiometers P n -P m having been arranged in the serial branch of the operational amplifier A 1
  • the voltage source U g is connected - in de ⁇ jendence of the place of holding - to the input of the operational amplifier A 1 through the resistcrs R l -R n and a part of the potentiometers P l -P m .
  • the exponential amplifier E 1 is connected to the output of said operational amplifier, on the output of the exponential amplifier the U ki control-voltage - being proportional to the frequency of the hold sound - appears.
  • the advantage of the circuit arrangement lies in that the series of resistors is built-up of identical resistors.
  • any type of circuit being controlled by means of the resistors of the control equipment can be optionally applied to any of the embodiments illustrated here.
  • the advantage of the invention lies in that the mode of play corresponds to the usual mode of play of the stringed instruments, e.g. a guitar, having been applied in the control equipment.
  • the stringed instruments e.g. a guitar
  • the synthetizer play can be accompanied by the traditional guitar chords.
  • the invention is yielding new possibilities in the field of meloiy-chord play.
  • the transmitter for the control voltage After having prepared the transmitter for the control voltage, it can be well adapted to the factory-made synthetizers, in such a manner, in addition to the keyboard control these synthetizers can be well actuated by means of the control equipment according to the inventicn.
  • a very significant advantage of the equipment according to the invention lies in that - compared to the instruments of similar character - it is built-up in a most simple manner and as a consequence, the production is cheap.
  • the whole synthetizer can be incorporated into the body of the guitar.

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

Abstract

Dispositif de commande pour instruments électroniques, notamment pour synthétiseurs ou orgatrons, contenant un instrument à cordes pourvu d'une touche ou de plaques de raccordement. Selon l'invention la touche et les plaques de raccordement sont formées par un matériau électriquement conducteur et entre la source de tension et la (ou les) sortie(s) on forme un circuit qui peut être fermé en appuyant sur une corde.Control device for electronic instruments, especially for synthesizers or orgatrons, containing a string instrument provided with a key or connection plates. According to the invention the key and the connection plates are formed by an electrically conductive material and between the voltage source and the output (s) a circuit is formed which can be closed by pressing on a cord.

Description

CONTROL APPARATUS TOR ELECTROITIC INSTRUMENTS
The invention relates to a control apparatus for electronic instruments, in particular for synchetizers or orgatrons. Since the appearance of the electric guitars several devices have been developed which render the guitar suitable partly for imitating other musical instruments, partly for producing new tones, as for example the distorting, extending devices, the dynamics compressor, the phase shifter, the quacking, twanging and echoing cfevices. These equipments are trans forming the signal having been picked-up via the pick-up of the guitar. Their common drawback lies in the limited length of decay, the tendency to excitation and the high producing costs.
The synthetizer is surpassing the range of the possible sounds to be generated in the previously described manner by orders of magnitude. With the synthetizers choosing of the tones is taking place in such a manner that by means of a switch system having been mounted onto the keyboard of the piano, the output vol tage of a voltage transmitter is changed and the voltage controlled oscillators are driven by the modified voltage. The shaping units, the modulators of the envelope curve, the filters, frequency dividers, mixers, etc. are connected to the voltage controlled oscillators The aim of the invention is to produce a control equipment, which is well suitable for a control of an orgatron or a synthetizer as an electronic instrument, having a layout being similar to that of the stringed instruments being provided with a fingerboard or a joint plate, and the mode of playing is also in compliance with that of said instruments. The equipment according to the invention, being suitable for electronic instruments, in particular for synthetizers or orgatrons, is containing a stringed instrument. The fingerboard, the joint plates, the strings are made of electrically conductive materials and form between the voltage source and the output/s/ a circuit to be closed by pressing down the strings.
With a further preferred embodiment of the invention the strings are made of a resistance wire.
Preferably, between the strings and/or the joint plates resistors and/or potentiometers are connected. With a further preferred embodiment either the joint plates or the strings are connected to the voltage sources. With an other preferred embodiment of the invention the joint plates are subdivided into scetions having been arranged below the strings and being isolated from each other.
The invention will be described by means of preferred embodiments serving as an example, by the aid of the accompanying drawings, wherein figures 1 to 8 are showing the preferred embodiments of the invention.
With the embodiment having been illustrated in figure 1, the strings Hl-Hm are connected to voltag sources, which are preferably realized by means of resistors or a voltage divider consisting of the potenti meters PUl-PUm and by means of the transistors Tl-Tm having been connected via their basis to the voltage divider. The emitter of the transistors Tl-Tm is connec ed to the strings. The voltage divider and the transis tors, respectively, are fed by the voltage source UG. The joint plates Bl-Bm are connected to the output K of the control equipment, via the resistor-chain consisting of the potentiometers Pl-Pn. The input of the operational amplifier A having been provided with the feedback resistor R is also connected to the output K.
The circuit arrangement according to figure 1 operates as follows:
The voltage divider PHl-PHm generates the string voltages, which are in the same proportion, as the tuning frequencies. The grounded collector connection of the transistors Tl-Tm ensures the low output impedance and thereby the voltage-generated drive of the inverting base circuit arrangement. The emitter-base diodes of the transis tors Tl-Tm are forming a logical circuit arrangement; when several strings are simultaneously pressed, the voltage corresponding to the highest string will prevail. The vol tages having been applied onto the strings - the proportion of which is corresponding to the desired proportion of frequencies between the strings - are actuating the ba sic circuit arrangement incorporating the operational amp lifier A. In the serial branch of the operational amplifier A the resistor-chain containing the potentiometers Pl-Pm having been connected to the joint plates Bl-Bn is arranged, out of which - in dependence of the strings having been pressed down - potentiometers in a varying number are connected in series with the input of the operational amplifier A. In case, if a string came in contact simultaneously with more joint plates, always the sound corresponding to the highest position of the joint will be heard. In a known manner, the voltage appearing on the output KU of the .operational amplifier, will change in dependence of the series resistance having been connected to the input, supposed, that the feedback resistor Rv is constant. The output KU of the operational amplifier is delivering the control voltage for the voltage-controlled oscillators having been connected directly to said output or through the shaping, filtering and other circuits, respectively. With the solution to be seen in figure 2, the interconnected strings Hl-Hn are connected to the voltage source UG. In order to be able to select the string to be sounded, the condensers Cl-C3 are connected to the output of the resistor-chain containing the potentiometers P1-Pn via the string selecting switches K1-K3, so e.g. three string selecting switches suffice for the distrinction of the six strings of the guitar. The output K is connected to the hysteresis comparator KO, while the output thereof is connected to the basis of the transistor TF The transistor TF is supplied with voltage from the output K.
The circuit arrangement according to figure 2 operates, as follows:
By the actuation of the string selecting switches K1-K3 the condenser/s/ C1-C3 connected to the circuit arrangement is /are/ beginning to the charged up to the supply voltage UG through the string pressed down, the joint plate being in contact with the same and on the part of the resistor-chain having been determined by the place of contact. When the voltage of the condensers C1-C3 are reaching the upper level of the hysteresis of the comparator KO, the comparator KO is tilting, the condenser is discharged by the transistor TF. Hereafter the comparator is tilted back, the process begins anew, meanwhile a pulse appears on the output E-p. The frequency of the output pulses will be inversely proportional to the time constant of the RG member consisting of the potentiometers Pl-Pn having been selected by pressing down the string, i.e. of the condensers C1-C3 having been selected by means of the string selecting switches Kl-K3. One may realize the solution previously described in a polyphonic embodiment, as it is to be seen in figure 3. In this case the joint plates Bl-Bn are subdivided into as many sections as the number of the strings, the sections of the joint plates are to be arranged below the strings and to be isolated from each other. With, this embodiment the series of the joint plate sections having been arranged below the single strings Hl-Hm are connected to the outputs Kl-Km of the control equipment via a resistor-chain each. The resistor-chains contain the potentiometers Pll - Pln, P2l - P2n, Pml - Pmn. The transmitters transmitting the control voltage - as already mentioned - having been realized by means of the operational amplifier Al-Am are connected to the outputs Kl-Km.
The main advantage of the polyphonic music instru ment - compared to the traditional polyphonic orgatrons lies in that the number of the components required amounts but to the fraction of the traditionally needed components.
With the embodiment to be seen in figure 4, the voltage source UG is connected to the resistor-chain con taining the potentiometers having been connected to the joint plates Bl-Bn. The strings Hl-Hm are forming the output Kl-Km of the control equipment, which is connected to the resistor-chain containing the potentiometers PHl-PHm being connected between the input and output of the operational amplifier A.
The essential feature of the operation of the embodiment according to figure 4 lies in, that when pressing a string, a part of the resistor-chains being connected to the joint plates Bl-Bn and the strings Hl-Hm will be connect ed in series with the input of the operational amplifier while the other part is connected to the feedback branch of the amplifier, accordingly, the output voltage of the operational amplifier A will change in dependence of the pressed string and of the position of the joint plate being in contact therewith.
With the polyphonic embodiment - similarly to the embodiment according to figure 3 - an operational amplifier each or any other voltage i.e. frequency generating unit is connected to the outputs Kl-Km. With the embodiment according to figure 5 the strings H-,-H are made of a resistance wire. Accordingly, the resistor-chain having been arranged between the joint plates becomes superfluous, i.e. the solution according to the invention may be well used to stringed instruments being provided with a fingerboard. In this case, to achieve a proper contact surface, the fingerboard should be made of an electricalljr conductive material. The interconnected joint plates Bl-Bn or the fingerboard are connected to the voltage source UG, while the operational amplifiers Al-Am - already mentioned before - are connected to the outputs Kl-Km.
With the embodiment shown in figure 5 the resistor having been connected to the serial branch of the operational amplifier Al-Am, as a consequence, the output voltage of the operational amplifiers Al-Am are depending also on the spot, where the resistance wires forming the strings Hl-Hm are pressed.
In case, if the mechanical or electrical properties of the resistance wire staying at our disposal necessitated, the strings may be prepared in such a manner, too, that the resistance wire is wound onto a synthetic wire or an insulated steel wire.
With the em bodiment according to figure 6, similarly to the embodiment of the figure 1, the voltage generators are connected to the strings Hl-Hm. The voltage generators are realized by means of the operationa amplifiers Al-Am being connected to the voltage dividers having been built-up of the potentiometers Pl-Pm and by means of the emitter-tracking units built-up of the trans istors being connected with their bases to the output of the operational amplifiers Al-Am The task of the operational amplifiers Al-Am lies in to reduce the output impedance of the voltage generators mentioned above, while the emitter-base diode of the transistors Tl-Tm are for a logical circuit arrangement, which activates the voltage of the string of the highest voltage out of the strings having been simultaneously pressed, on the joint plates coming into contact v/ith the joints. The voltages of the strings can be adjusted by means of the potentiometers Pl-Pm in accordance with the desired tuning frequency proportion. The ladder-circuit consisting of the resistors Rll - Rln; R21 - R2n and Rk in connected to the joints, which is attenuating the voltage of the strings in accordance v/ith the sound hold. The Uk i control voltage - being proportional to the frequency of the hold sound, appears on the output of the operational amplifiers Ak, used as a voltage tracking unit.
The embodiment having been illustrated in figure 7, operates as follows: The series of resistors consisting of the resistors Rl-Rn are forming the serial branch of the hysteresis comparator having been built-up of the operational amplifiers A2, while the series of resistors comprising the potentiometers Pl-Pm are forming the positive feedback branch thereof. The operational amplifier A1 is functioning as an integrator and together with the hysteresis comparator mentioned above, it is forming a waveform generator, the output frequency of which is proportional to the frequency of the hold string. With the embodiment to be seen in figure 8, the series of resistors connecting the joints B1-Bn are connect ed to the voltage source Ug. The strings Hl-Hm are connected by means of the potentiometers Pn-Pm having been arranged in the serial branch of the operational amplifier A1 The voltage source Ug is connected - in deτjendence of the place of holding - to the input of the operational amplifier A1 through the resistcrs Rl-Rn and a part of the potentiometers Pl-Pm. In the feedback branch of the operational amplifier A1 there is the resistor Rv arranged. The exponential amplifier E1 is connected to the output of said operational amplifier, on the output of the exponential amplifier the Uki control-voltage - being proportional to the frequency of the hold sound - appears. The advantage of the circuit arrangement lies in that the series of resistors is built-up of identical resistors.
Instead of the control voltage, respectively, frequency generating units having been provided v/ith the operational amplifier, respectively, comparator, as previously described, any type of circuit being controlled by means of the resistors of the control equipment can be optionally applied to any of the embodiments illustrated here.
The advantage of the invention lies in that the mode of play corresponds to the usual mode of play of the stringed instruments, e.g. a guitar, having been applied in the control equipment. In order to be able to produce the sound of a synthetizer or an orgatron one has only the keep down the strings, accordingly plucking the guitar becomes superfluous. In such a manner a far quicker play becomes possible, since in the technique of guitar playing the main difficulty is represented just by the synchronization of plucking and holding the strings, at the same time, the synthetizer play can be accompanied by the traditional guitar chords.
Taking into consideration that the rapid scale passages can be played - without the necessity of re-scoring on the sound of an orgatron or a synthetizer, the invention is yielding new possibilities in the field of meloiy-chord play.
.After having prepared the transmitter for the control voltage, it can be well adapted to the factory-made synthetizers, in such a manner, in addition to the keyboard control these synthetizers can be well actuated by means of the control equipment according to the inventicn.
The advantage of this solution lies in that the field of application of the sΛmthetizers can be widened, since due to the popularity of the guitar the number of the guitarists is far larger, than that of the pianist.
A very significant advantage of the equipment according to the invention lies in that - compared to the instruments of similar character - it is built-up in a most simple manner and as a consequence, the production is cheap. When prepared v/ith integrated circuits and using a battery, the whole synthetizer can be incorporated into the body of the guitar.

Claims

WHAT WE CLAIM :
1. Control equipment for electronic instruments, in particular for synthetizers or orgatrons, containing a stringed instrument provided v/ith a fingerboard or joint plates, c h a r a c t e r i z e d i n that the fingerboard and the joint plates /B1-Bn/ are made of an electrically conductive material and between the voltage source /UG/ and the output/s/ /K, Kl-Km/ a circuit is formed, which can be closed by pressing down a string /Hl-Hm/.
2. Control equipment as claimed in claim 1, c h a r a c t e r i z e d i n that the strings /Hl-Hm/ are made of resistance wire.
3. Control equipment as claimed in claim 1, c h a r a c t e r i z e d i n that between the joint plates /B1-Bn/ and/or betv/een the strings /Hl-Hm/ resist /R/ and/ or potentiometers are connected.
4. Control equipment as claimed in. claim 3, c h a r a c t e r i z e d i n that the joint plates /B1-Bn/ or the strings are connected to separate voltage sources. 5. Control equipment as claimed in claim 3, c h a r a c t e r i z e d i n that the joint plates /B1-BnI are subdivided into sections having been arranged under the strings /Hl-Hm/ and being isolated from each other. AMENDED CLAIMS
(received by the International Bureau on 23 September 1982 (23.09.82))
1. /cancelled/
2. /cancelled/
3. /cancelled/
4. /cancelled/
5. /cancelled/
6. /new/ Control equipment for electronic music instruments and more particularly for electronic synthesizers or organs wherein said equipment comprising a body /mechanism/ like a stringed music instrument provided with a fretboard or fingerboard and string/s/ wherein said string/s/ /Hl-Hn/, frets /joint plates/ /B1-Bn/ being made of electrically conductive material and said frets being connected by the resistors /Pl-Pn-1/ between them, c h a r a c t e r i z e d i n that the fret /Bn/ at the top is connected through a resistor /Pn/ to the input of an operational amplifier /A/ or to the capacitor/s/ /C1-C3/ being connected to the input of a hysteresis comparator /Ko/.
7, /new/ Control equipment for electronic music instruments and more particularly for electronic synthesizers or organs wherein said equipment comprising a body /mechanism/ like a stringed music instrument provided with a fretboard or fingerboard and string/s/ wherein said εtring/s/ /Hl-Hn/, frets /joint plates/ /B1-Bn/ being mad of electrically conductive material and said frets being connected by the resistors /Pl-Pn-1/ between them, c h a ra c t e r i z e d i n that the fret /Bn/ at the top is coupled through a resistor /Pn/ to the terminal of a constant potential /UG/ or to the output of an operational amplifier /A/.
8. /new/ A control equipment as defined in claim
6, c h a r a c t e r i z e d i n that the strings are connected through semi-conductor junctions to the different potential /PUl-PUm/.
9. /new/ A control equipment as defined in claim 7, c h a r a c t e r i z e d i n that the strings are coupled with resistors and the string at the top /H1/ is connected to the input of an operational amplifier.
10. /new/ Control equipment for electronic music instruments and more particularly for electronic synthesizers or organs wherein said equipment comprising a body /mechanism/ like a stringed music instrument provided with a fretboard or fingerboard and string/s/ wherein said string/s/ /Hl-Hn/, frets /joint plates/ /B1-Bn/ being made of electrically conductive material, c h a r a c t e r i z e d i n that the frets /joint plates/ /B1-Bn/ are subdivided into sections /Bm-1-Bmn/ being isolated from each other and the sections under the same strings being connected through resistors and the section/s/ at the top each are coupled through a resistor /Pml-Pmn/ to the inputs of each operational amp lifier /Al-Am/, and the strings are coupled to the terminal of a constant potential /UG/ or to that one of different constant potentials.
11. /new/ Control equipment for electronic music instruments and more particularly for electronic synthesizers or organs wherein said equipment comprising a body /mechanism/ like a stringed music instrument provided with a fretboard or fingerboard and string/s/ wher said string/s/ /Hl-Hm/, frets /joint plates/ /B1-Bn/ bein made of electrically conductive material, c h a r a c t e r i z e d i n that the fretboard or fingerboard is made of metal or the frets /joint plates/ are coupled with each other and the string/s/ is/are made of resisto string and all of the said strings being connected to each input of operational amplifiers /Al-Am/.
12. /new/ Control equipment as defined in claims 6 , 7, 10 or 11, c h a r a c t e r i z e d i n that the body /a/ containing a fretboard or fingerboard and string/s/ like said string-type music instrument is in itself a string-type music instrument efficient in working.
EP19810903271 1981-12-08 1981-12-08 Control apparatus for electronic instruments. Withdrawn EP0096022A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/HU1981/000045 WO1983002189A1 (en) 1981-12-08 1981-12-08 Control apparatus for electronic instruments

Publications (2)

Publication Number Publication Date
EP0096022A1 true EP0096022A1 (en) 1983-12-21
EP0096022A4 EP0096022A4 (en) 1984-06-13

Family

ID=10980423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810903271 Withdrawn EP0096022A4 (en) 1981-12-08 1981-12-08 Control apparatus for electronic instruments.

Country Status (4)

Country Link
EP (1) EP0096022A4 (en)
JP (1) JPS58502067A (en)
AU (1) AU7898181A (en)
WO (1) WO1983002189A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039534A5 (en) * 1969-04-02 1971-01-15 Woltz Rene
FR2103183A5 (en) * 1970-07-22 1972-04-07 Pirri Luigi
US4038897A (en) * 1975-10-14 1977-08-02 Electronic Music Laboratories, Inc. Electronic music system and stringed instrument input device therefor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3509263A (en) * 1966-07-07 1970-04-28 Warwick Electronics Inc Electronic musical instrument keying system including attack and decay control
US3539699A (en) * 1967-01-26 1970-11-10 Richard A Johnson Two-in-one stringed electronic instrument with string pickup and tone generator
US3524375A (en) * 1968-04-01 1970-08-18 Alvin S Hopping Simulated stringed electronic musical instrument having gradual switch for attack,decay and volume control
US3733955A (en) * 1971-12-06 1973-05-22 Venture Technology Inc Music synthesizer keyboard circuit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2039534A5 (en) * 1969-04-02 1971-01-15 Woltz Rene
FR2103183A5 (en) * 1970-07-22 1972-04-07 Pirri Luigi
US4038897A (en) * 1975-10-14 1977-08-02 Electronic Music Laboratories, Inc. Electronic music system and stringed instrument input device therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8302189A1 *

Also Published As

Publication number Publication date
EP0096022A4 (en) 1984-06-13
JPS58502067A (en) 1983-12-01
WO1983002189A1 (en) 1983-06-23
AU7898181A (en) 1983-06-30

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