Class 84/705 - Tremolo

Subclass of Class 84 - Music
Definition: Subject matter providing for rapid iteration of or a modulation
No. of patents: 26
Last issue date: 09/05/2006

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Number	Title	Issue Date
7102450	Method and apparatus for providing clock signals at different locations with minimal clock skew A tapped phase shift ring oscillator may be used to provide multiple clock signals having variable phase delays. Phase delays may be selected to compensate for clock skews at different locations on high speed chips, or to provide clock signals having specific, desir...	09/05/2006
5763807	Electronic music system producing vibrato and tremolo effects An electronic music system adapted to generate tone waves of different pitch, amplitude and duration which, when reproduced, create musical tones whose expressive qualities emulate the expressive quality of natural tones producible by acoustic instruments...	06/09/1998
5333203	Reverb and selectable tremolo and vibrato electron tube preamplifier A preamplifier device employing electron tubes wherein the preamplifier has tremolo/vibrato circuits independent from reverb circuits allowing continuously variable control of either tremolo or vibrato effects simultaneous with continuously variable contr...	07/26/1994
4909119	Musical tone control system with a pedal for adding a musical effect to a musical tone An electronic musical instrument for causing a tone generator to generate a musical tone corresponding to a musical performance while controlling an envelope by operation of a pedal. An operated-amount signal generator is provided for detecting an operate...	03/20/1990
4658692	Control circuit for shaded-pole motor A control circuit for shaded-pole motors used in an acoustic pulsato system for producing special musical effects. The system includes a horn-type loudspeaker connected to a shaded-pole motor and/or a drum-type loudspeaker connected to a shaded-pole motor...	04/21/1987
4649786	Electronic musical instrument An electronic musical instrument comprises a plurality of keyboards each having a plurality of keys, a control circuit for controlling a manner of tone production, and a musical tone production circuit responsive to respective depressed keys of respective...	03/17/1987
4356751	Electronic musical instrument An electronic musical instrument comprises a musical tone production circuit responsive to a depressed key among a plurality of keys, and a control circuit for controlling tone production manner which includes a plurality of manually operated members moun...	11/02/1982
4329902	Electronic method and apparatus for modifying musical sound A continuously varying electrical signal representing an original musical sound is divided at a selected mid-frequency of about 800 Hertz to provide upper and lower frequency signal bands which are then frequency-modulated with separate modulation signals...	05/18/1982
4308428	System for electronically simulating radiation effects produced by a rotary loudspeaker A device for electronically simulating vibrato and tremulant effects and the radiation effects produced by a rotary loudspeaker with the aid of two loudspeakers, in which a musical tone signal is applied to a variable delay device associated with one of t...	12/29/1981
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 such wires selectively making contact with at least one of t...	12/22/1981
4253368	Universal pulsato unit An improved mounting for an acoustic pulsato rotor for suppression of spurious sounds utilizes a spring bias for axial thrust between the shaft ends and bearing cups. In one form, a plurality of thin spider legs extend from a rotor mounting panel in surro...	03/03/1981
4203339	Brass keyer system for electronic organ A keying arrangement for electronic organs in which a tone signal consisting of a square wave having, for example, a fifty percent duty cycle is connected to the input of the keyer circuit, and the output thereof, upon the depression of a playing key, con...	05/20/1980
4189972	Electronic musical instrument of numerical value processing type In an electronic musical instrument of a numerical value processing type, an operation of a key causes the generation of a numerical value corresponding to the operated key and a tone having a frequency determined by the numerical value is produced. A vib...	02/26/1980
4114499	Method and apparatus for securing vibrato and tremolo effects Method and apparatus for securing vibrato and tremolo effects in musical instruments, such as electronic organs, wherein an incoming electrical signal is separated into high and low frequency components which are injected into opposite ends of a multiple-...	09/19/1978
4064778	Frequency-deviation method and apparatus A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviate...	12/27/1977
4043243	Electronic chorus and tremulant system This invention relates to a electronic chorus and tremulant system for an electrical musical instrument such as an electronic piano or an electronic organ. A plurality of different sub groups of tone signals representing musical notes are separately colle...	08/23/1977
4035582	Tremolo effect producing system A tremolo effect producing system comprises at least one electro-acoustic transducer such as a loudspeaker for converting an electrical audio signal to a sound, at least one acousto-electrical transducer such as a microphone for converting sound to an ele...	07/12/1977
4031795	Tone signal modulation system Modulation systems for electrical signals representing music in which synchronous vibrato and tremolo modulations are applied to a flute signal in one channel, the vibrator being produced by a bucket brigade modulator and the tremolo by a balanced modulat...	06/28/1977
4008641	Device for modulating a musical tone signal to produce a rotating sound effect A device for modulating a musical tone signal to produce a rotating sound effect. A first channel is coupled to an input for a musical tone and has an amplitude modulator therein. At least two further channels each having an amplitude modular therein are ...	02/22/1977
3999149	Modulation system A modulator for modulating an audio signal in response to a dc signal of adjustable level and concurrently in response to a sub-audio signal, in which the modulating signals do not appear in the output of the modulator nor intermodulate each other, the sy...	12/21/1976
3979991	Electronic expression device for producing tremulant effect An electronic expression device for producing a tremulant effect. The device has a distributor having one input terminal and a plurality of output terminals, a plurality of transmission channels being connected to the respective output terminals of the di...	09/14/1976
3978421	Electrical musical instrument amplifier having improved tremolo circuit, improved reverberation control, and power reduction circuit for distortion mode operation An electrical musical instrument amplifier is disclosed in which a signal which has been provided by an instrument to a second one of two different preamplifiers for amplification therein is passed to one of the inputs of a summing amplifier together with...	08/31/1976
3973462	Frequency-deviation method and apparatus A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviate...	08/10/1976
3973223	Frequency-deviation method and apparatus A carrier wave having a sub-audible frequency is modulated in amplitude by a modulating wave of a tone signal having an audible frequency, which produces a resultant modulated output signal having first and second side band components respectively deviate...	08/03/1976
3948139	Electronic synthesizer with variable/preset voice control An electronic musical synthesizer generates tone signals coupled to a controllable bandpass filter and a controllable low-pass filter. A plurality of voice switches are individually selectable to couple preset control voltages to the filters, and to enabl...	04/06/1976
3941025	Electronic expression device for producing tremulant effect Electronic expression device for producing a novel tremulant effect. The device has a frequency range separator separating an audio frequency signal into a plurality of sub-band signals at least one modulation system being connected to the frequency range...	03/02/1976

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Class 84/705 - Tremolo