IE31863B1 - Circuit arrangements for imitating the touch of percussive musical instruments - Google Patents

Circuit arrangements for imitating the touch of percussive musical instruments

Info

Publication number
IE31863B1
IE31863B1 IE396/68A IE39668A IE31863B1 IE 31863 B1 IE31863 B1 IE 31863B1 IE 396/68 A IE396/68 A IE 396/68A IE 39668 A IE39668 A IE 39668A IE 31863 B1 IE31863 B1 IE 31863B1
Authority
IE
Ireland
Prior art keywords
diode
touch
voltage
softest
loudest
Prior art date
Application number
IE396/68A
Other versions
IE31863L (en
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of IE31863L publication Critical patent/IE31863L/en
Publication of IE31863B1 publication Critical patent/IE31863B1/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/02—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos
    • G10H1/04—Means for controlling the tone frequencies, e.g. attack or decay; Means for producing special musical effects, e.g. vibratos or glissandos by additional modulation
    • 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
    • G10H1/055—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 switches with variable impedance elements
    • G10H1/0555—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 switches with variable impedance elements using magnetic or electromagnetic means

Abstract

1,162,449. Electrophonic musical instruments. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 5 April, 1968 [8 April, 1967], No. 16537/68. Heading G5J. A circuit for imitating the touch of a percussive musical instrument is arranged so that the build-up time of the note from a tone generator is kept substantially constant or made to vary less than does the duration of actuation of the key 1 resulting from variation in touch intensity. The key is mechanically coupled to a magnet 2 such that actuation of the key will cause flux lines from the magnet to cut an inductance L so inducing a voltage therein which is fed through a diode D to a capacitor C. In accordance with this invention diode D is biased by a battery B such that it will only conduct when the voltage induced across L is greater than the battery voltage. Biasing of the diode D reduces the ratio between the build-up times for the softest and loudest touches on the key. A resistor R is used to reduce the ratio of the capcitor voltages for the loudest and softest touch so that they more nearly equal the ratio of the intensity of actuation for the loudest and softest touch. Fig. 3 (not shown), illustrates the further modification of placing an element X in the circuit between resistor R and diode D to compensate for the diode in the initial part of its characteristic if the voltage induced in the coil for the softest touch (the least touch to produce an audible note) only just exceeds the battery voltage. Element X is such that its resistance increases with increasing current in the initial part of the forward characteristic of the diode, for example a tunnel diode. Fig. 5 (not shown), illustrates a method of reducing still further the ratio of the capacitor voltages for the loudest and softest touch by connecting a further diode, reverse biased by a voltage E 2 , in parallel with inductance L, the effects of which are shown in Fig. 6 (not shown). Two alternative methods of providing a voltage threshold for the diode D are described, one in which a diode with an inherent voltage threshold is used and one in which a battery in series with a resistor is connected in parallel with the diode. [GB1162449A]
IE396/68A 1967-04-08 1968-04-05 Circuit arrangements for imitating the touch of percussive musical instruments IE31863B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL676705025A NL150929B (en) 1967-04-08 1967-04-08 ELECTRONIC MUSIC INSTRUMENT.

Publications (2)

Publication Number Publication Date
IE31863L IE31863L (en) 1968-10-08
IE31863B1 true IE31863B1 (en) 1973-01-24

Family

ID=19799789

Family Applications (1)

Application Number Title Priority Date Filing Date
IE396/68A IE31863B1 (en) 1967-04-08 1968-04-05 Circuit arrangements for imitating the touch of percussive musical instruments

Country Status (11)

Country Link
US (2) US3544695A (en)
JP (1) JPS4814253B1 (en)
AT (1) AT290269B (en)
BE (1) BE713405A (en)
CH (1) CH485289A (en)
ES (1) ES352482A1 (en)
FR (1) FR1562394A (en)
GB (1) GB1162449A (en)
IE (1) IE31863B1 (en)
NL (1) NL150929B (en)
SE (1) SE353173B (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL160960C (en) * 1967-09-15 1979-12-17 Philips Nv ELECTRONIC MUSIC INSTRUMENT WITH PERCUSSION.
US3594488A (en) * 1968-03-18 1971-07-20 Nippon Musical Instruments Mfg Electronic musical system with magnetic field responsive switch and volume control
US3590134A (en) * 1968-03-29 1971-06-29 Nippon Musical Instruments Mfg Electronic musical system with magnetic field responsive switch and volume control
US3617600A (en) * 1968-03-30 1971-11-02 Nippon Musical Instruments Mfg Magnetic field responsive key switch device for producing attack effect in electronic musical instruments
JPS4815866B1 (en) * 1968-08-13 1973-05-17
US3626074A (en) * 1969-06-24 1971-12-07 Nippon Musical Instruments Mfg Touch-responsive tone envelope control circuit for electronic musical instruments
US3636232A (en) * 1969-07-04 1972-01-18 Nippon Musical Instruments Mfg Touch-responsive tone envelope control circuit for electronic musical instruments
GB1282364A (en) * 1969-07-11 1972-07-19 Mario Ranzato Electronic instruments for simulating stringed instruments
US3626075A (en) * 1969-07-12 1971-12-07 Nippon Musical Instruments Mfg Touch-responsive tone envelope control circuit for electronic musical instruments
US3634594A (en) * 1969-08-05 1972-01-11 Nippon Musical Instruments Mfg Touch-responsive tone envelope control circuit for electronic musical instruments
US3673303A (en) * 1969-09-03 1972-06-27 Nippon Musical Instruments Mfg Voltage generating device for controlling musical tone output from electronic musical instruments
US3651730A (en) * 1969-09-10 1972-03-28 Nippon Musical Instruments Mfg Sound level control device in electronic musical instrument employing touch responsive keying means
US3652774A (en) * 1969-10-16 1972-03-28 Nippon Musical Instruments Mfg Keying system for electronic musical instruments
US3657463A (en) * 1969-11-18 1972-04-18 Nippon Musical Instruments Mfg Keyer control circuit for electronic musical instruments
US3582530A (en) * 1970-03-11 1971-06-01 Nippon Musical Instruments Mfg Electronic musical instrument producing percussion signals by additive mixing of component signals
DE2017798C2 (en) * 1970-04-14 1982-08-19 Nippon Gakki Seizo K.K., Hamamatsu, Shizuoka Electronic musical instrument with variable volume - has permanent magnet on each key moving adjacent to coil to vary volume
US3663735A (en) * 1970-06-01 1972-05-16 Columbia Broadcasting Systems Automatic on-off control
US3647929A (en) * 1970-10-08 1972-03-07 Karl F Milde Jr Apparatus for reproducing musical notes from an encoded record
US3749806A (en) * 1970-12-16 1973-07-31 W Rosenberg Electronic key musical instrument
US3999457A (en) * 1972-03-17 1976-12-28 Adolf Michel Key system for controlling the rate of attack in electronic musical instruments
JPS50115545A (en) * 1974-02-21 1975-09-10
JPS5181152A (en) * 1975-01-14 1976-07-15 Sokkisha REZAAKOJIDOSUICHOKUOYOBISUIHEISENKAIKI
DD226066A1 (en) * 1983-10-03 1985-08-14 Zeiss Jena Veb Carl ARRANGEMENT FOR HEIGHT MEASUREMENT, PREFERABLY TO GEOMETRIC NIVELMENT
US4510836A (en) * 1983-12-01 1985-04-16 Allen Organ Company Touch sensitivity in an electronic musical instrument having non-positive attack
JPH02118413A (en) * 1989-08-17 1990-05-02 Asahi Seimitsu Kk Surveying machine equipped with automatic correcting device for inclination error

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2841043A (en) * 1956-01-31 1958-07-01 Werk Fur Fernmeldewesen Veb Electric organ
US3336484A (en) * 1964-04-10 1967-08-15 Energy Conversion Devices Inc Power switching circuit
US3248470A (en) * 1963-04-24 1966-04-26 Allen Organ Co Electronic piano having means responsive to the velocity of the action
US3239693A (en) * 1964-09-03 1966-03-08 Avco Corp Bilateral electronic gate

Also Published As

Publication number Publication date
US3544695A (en) 1970-12-01
GB1162449A (en) 1969-08-27
DE1622884A1 (en) 1970-12-17
NL6705025A (en) 1968-10-09
DE1622884B2 (en) 1976-02-12
JPS4814253B1 (en) 1973-05-04
NL150929B (en) 1976-09-15
IE31863L (en) 1968-10-08
US3553337A (en) 1971-01-05
ES352482A1 (en) 1969-07-16
SE353173B (en) 1973-01-22
CH485289A (en) 1970-01-31
AT290269B (en) 1971-05-25
FR1562394A (en) 1969-04-04
BE713405A (en) 1968-10-08

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