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6444891 Electronic guitar with its keys arranged in complex array  
Electronic guitar including a case, a keyboard, a sound synthesis electronic assembly and an output line. The keyboard is divided into an upper keyboard arranged on a neck of the case and a lower...
4481851 Tone generator assignment system for an electronic musical instrument  
An electronic musical instrument includes a keyboard having a plurality of keys, each depressed key being identified by a uniquely developed multibit code. Each of a plurality of tone generators,...
4463647 Musical instrument  
Clavier multiplexing is used in the present keyboard musical instrument to reduce the number of sound generators needed by connecting them only to those notes that are depressed. The association of...
4424732 Electronic musical instrument with intermanual performance faculty  
An electronic musical instrument includes an upper, lower and pedal key boards and a solo keyboard, key switches and associated circuits for producing key codes of the depressed keys, and musical...
4387618 Harmony generator for electronic organ  
A harmony generator for an electronic organ, wherein the identity of played keys of the keyboard(s) is read into a storage device and then operated upon by a data processing device such as a...
4384506 Polyphonic electronic musical instrument producing prominent solo tone  
An electronic musical instrument of a polyphonic type comprises, first tone generating means capable of producing, in a first musical tone property, a plurality of musical tones respectively...
4353278 Chord generating apparatus of electronic musical instrument  
A chord generating apparatus of an electronic musical instrument is provided with a selector which selects a single key among a plurality of depressed keys, a detector for detecting a chord type...
4335639 Preferential circuit for electronic musical instrument  
A preferential circuit for an electronic musical instrument is provided in which a memory circuit is employed to memorize a key data signal corresponding to the last depressed key and at least one...
4321850 Electronic musical instrument with highest priority key tone production  
An electronic musical instrument having a plurality of keys is provided with a depressed key detector which detects depressed keys and produces key identifying signals; a highest signal detector...
4306480 Electronic musical instrument  
An electronic musical instrument having a fret board and a plurality of conductive frets may be coupled to a resistance ladder of discrete resistive elements. A conductive wire or a plurality of...
4282787 Electronic musical instrument simultaneously operable in monophonic and polyphonic modes  
An electronic musical instrument having combined monophonic and polyphonic sound producing capabilities includes a keyboard simultaneously operating a monophonic tone signal generating circuit and...
4276801 Pedal actuated musical chord system  
A musical chord system includes a pedal console comprising a plurality of foot-actuated pedal switches, a chord selection switch console comprising a plurality of chord selection switches...
4271743 Envelope signal generator  
An envelope signal generator which has a key depression/release signal generator for producing different output levels in response to key depression and key release, a switching circuit which is...
4235141 Electronic apparatus  
An apertured insulating strip permits closing a circuit only at contact points defined by the apertures between a low resistance conductor and a high resistance conductor in an electronic circuit...
4215615 Monolithic integrated selection circuit  
The circuit enables the selection of the upper or the lower tone of an electronic organ chord with regard to a switching signal. In response to said switching signal each tone frequency signal...
4204452 Single key preferential selection device in electronic musical instrument  
A monophonic electronic musical instrument comprises a single key preferential selection device. Key switches are connected in a matrix fashion between the group lines and the individual lines. The...
4203340 Electronic musical instrument  
An electronic musical instrument includes a tone signal generator whose operation is controlled by active electronic signal processing. The instrument includes both tone effect control means to...
4194425 Key code generator  
In a key code generator which has key code generator circuits, each corresponding to one of a plurality of key switches and composed of a memory circuit for storing the status of the key switch...
4192212 Electronic musical instrument with automatic performance device  
A keyboard electronic musical instrument comprises a note information processing device capable of processing note information required for automatic arpeggio and automatic bass performances. This...
4182211 Information transmission system  
An information transmission system for N information signals for the transmission of either N parallel signals, or of only one information signal from a signal range of M signals with M≤N at the...
4179969 Tone generator for electrical music instrument  
In a tone generating apparatus for an electrical music instrument having an array of switches corresponding to respective keys of a keyboard and which are selectively actuable by manipulation of...
4170160 Electronic musical instrument  
An electronic musical instrument includes a linear voltage divider network including a plurality of equal series resistance elements for generating a first output voltage as a function of the state...
4162644 Automatic rhythm accompaniment apparatus in an electronic organ  
An automatic accompaniment apparatus in an electronic organ having a keyboard for melody provided with a plurality of key switches for accompaniment, respective ends of the key switches being...
4142434 Circuit arrangement for electronic musical instruments  
In an electronic musical instrument with two tone generators of which the frequency of the tones produced by them is substantially constant for the first generator a priori and for the second...
4138917 Key code generator  
A key code generator for electronic musical instruments which has a switch matrix circuit having a plurality of switches disposed at the intersections of two sets of buses, means for simultaneously...
4100831 Automatic digital circuit for generating chords in a digital organ  
An automatic chord generating circuit for a digital polyphonic tone synthesizer having one or more keyboards. Key operated switches are connected in groups corresponding to the notes in an octave....
4098162 Synthesizer type electronic musical instrument  
An electronic musical instrument includes a pitch determining voltage signal generating circuit adapted to produce one of 12 pitch determining voltage signals having different magnitudes...
4064777 Circuit for preferentially selecting highest and lowest tones  
A circuit in an electronic keyboard musical instrument for preferentially selecting the highest and lowest tones from among the tones in chords produced by keys on the keyboard which have been...
4056996 Electronic music system  
A monophonic system includes means for voicing only tones derived in response to depression of a key associated with the highest pitched note when several keys are struck at approximately the same...
4054078 Automatic arpeggio electronic musical instrument  
An automatic arpeggio musical instrument includes a pulse generator having a plurality of keys for generating periodic pulses by depression of one of the keys, each of the keys generating a...
3999458 Electronic musical instrument having preset arrangement with one group of switches controlling two groups of memories  
An electronic musical instrument comprising first and second musical tone signal synthesizing circuit arrangements including voltage waveform generators adapted to control first and second tone...
3991645 Electronic musical instrument with exponential keyboard and voltage controlled oscillator  
An electronic musical instrument includes an oscillator for generating a signal at a frequency corresponding to that associated with a depressed key of the keyboard. The key selects a control...
3986425 Bass signal control circuit  
This invention relates to a circuit for use in an electronic musical instrument such as an organ, the instrument having two separate sources of bass signals and transducing elements for converting...
3981217 Key assigner  
A key assigner for use in an electronic musical instrument is capable of detecting changes in key switches by comparing present ON-OFF states of the key switches with previous ON-OFF states...
3978754 Voltage controlled type electronic musical instrument  
This invention provides an electronic musical instrument comprising a keyboard circuit for producing a pitch determining voltage signal representing the note of an operated key, a voltage...
3952624 Electronic musical instrument capable of generating tone signals having pitch frequency, tone color and volume envelope varied with time  
An electronic musical instrument comprising a voltage controlled oscillator, a voltage controlled filter, a voltage controlled amplifier and envelope generators. An output envelope of the envelope...
3948137 Pitch determining voltage signal generating circuit for a voltage controlled type electronic musical instrument  
This invention is directed to a keyboard circuit for generating pitch determining voltage signals whose voltage values exponentially vary with respect to notes. Key switches are connected between a...
3918342 Monophonic electronic musical instrument of equal tempered scale  
A monophonic electronic musical instrument of an equal tempered scale is disclosed in which a note voltage generator circuit includes a plurality of first resistors connected in series between...
3906830 Monophonic electronic musical instrument  
A monophonic electronic music synthesizer in which keying signals are collected on common note busses and common octave busses and then stored in note latches and octave latches of special design...
3886836 Electronic musical instrument capable of generating tone signals having the pitch frequency, tone color and volume envelope varied with time  
In response to a pitch determining voltage obtained by key operation, a voltage controlled oscillator generates a tone signal having a pitch frequency corresponding to the note of the operated key....
3872764 SAMPLE AND HOLD CIRCUIT FOR AN ELECTRIC ORGAN  
A sample and hold circuit for an electric organ, in which the voltage across a cascade or resistances, selected points of which may be grounded by key switches of an electric organ, is maintained...
3836692 SIGNAL-SELECTING SYSTEM FOR A KEYBOARD TYPE ELECTRONIC MUSICAL INSTRUMENT  
A signal-selecting system for a keyboard type electronic musical instrument comprising keyswitches, memory means, tone signal sources, signal-switching means, frequency dividers, key-selecting...
3832479 ELECTRONIC APPARATUS FOR PROGRAMMED AUTOMATIC PLAYING OF MUSICAL ACCOMPANIMENT SYSTEMS  
An electronic circuit or apparatus which, when properly combined with a keyboard electronic instrument of the button or similar type, allows automatic and programmable playing of musical...
3825667 ALTERNATE HIGH-LOW AND ROOT-FIFTH SELECTION SYSTEM FOR ELECTRICAL MUSICAL INSTRUMENTS  
A note selection system for a keyboard type electrical musical instrument which supplies to output leads the note signals corresponding to the highest and lowest notes of a group of notes played,...
3801721 MONOPHONIC ELECTRONIC MUSIC SYSTEM WITH APPARATUS FOR SPECIAL EFFECT TONE SIMULATION  
A monophonic system includes means for voicing only tones derived in response to depression of a key associated with the highest pitched note when several keys are struck at approximately the same...
3789718 VOLTAGE CONTROLLED CHORD ORGAN  
An electronic chord organ, in which voltage controlled oscillators are each supplied with the same voltage, the voltage being selected by actuation of keys of an organ keyboard, and the currents...
3781450 SIGNAL-SELECTING SYSTEM FOR AN ELECTRONIC MUSICAL INSTRUMENT  
A signal selecting system for an electronic musical instrument comprising tone generators, gating means, keyswitches and a transistor preference circuit. The transistor preference circuit comprises...
3766305 D.C. KEYED HIGH LOW SELECT PREFERENCE SYSTEM FOR POLYPHONIC ELECTRICAL MUSICAL INSTRUMENTS  
A transistorized high-low note select system for keyboard type electrical musical instruments which provides for direct current operation with or without control of the attack and decay envelope...
3764723 VOLTAGE-CONTROLLED SINGLE TONE SELECTOR FOR USE IN ELECTRONIC MUSICAL INSTRUMENT  
A single tone selector for an electronic musical instrument provided with a plurality of tone generators and the same number of keys. Tone signals from the tone generators are respectively shunted...
3715444 SWITCHING SYSTEM FOR KEYBOARD  
A priority switching system for use with a keyboard of an electronic musical instrument comprising a plurality of input terminals having corresponding voltages applied thereto, a switching matrix...
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