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| Number | Title | Issue Date |
| 6433673 | Digital enunciator, process and communication system employing same A receiver in a communication system is coupled to a transmission channel for receiving communication signals transmitted over a transmission channel. The receiver includes signal receiving electronics for receiving communication signals directed to the r... | 08/13/2002 |
| 5848165 | Fat sound creation means Intermodulation means for the emulation and exaggeration of an aspect of vacuum tube amplifiers by solid state, digital, speaker or other means. The intermodulation means produces intermodulation products of the input and an audio signal source which may ... | 12/08/1998 |
| 5754095 | Tone generating circuit A tone generating circuit for delivering power to a speaker modulated fourth harmonic audio square wave signal by its fundamental to produce a modulated audio signal within a selected frequency range. The tone generating circuit may be incorporated in a p... | 05/19/1998 |
| 5432294 | Electronic bell tone generator A microprocessor provides a pulse width modulated pulse train at a predetermined frequency to a tuned resonant circuit having a transducer element. The first pulse has a predetermined width. The pulse widths of successive pulses are decreased in a predete... | 07/11/1995 |
| 5268528 | Musical sound waveform generator and a method for generating a musical sound waveform electronic musical instrument with improved capability for simulating an actual musical instrument A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of the carrier signal from the carrier signal generating unit ... | 12/07/1993 |
| 5223653 | Musical tone synthesizing apparatus A musical tone synthesizing apparatus which is suitable for simulating and synthesizing the percussion instrument tone provides a closed-loop including at least an adder and a delay circuit. An input signal corresponding to a musical tone signal to be syn... | 06/29/1993 |
| 5218156 | Apparatus for combining stored waveforms to synthesize musical tones A musical tone synthesizing apparatus comprising FM operators and connection control device. At least one of the FM operators comprises a waveform memory, phase data generation device, and output inversion device. The waveform memory stores fundamental wa... | 06/08/1993 |
| 5164530 | Electronic musical instrument with improved capability for simulating an actual musical instrument A musical sound waveform generator includes a carrier signal generating unit, a modulation signal generating unit, a mixing controlling unit and a waveform outputting unit. The characteristics of the carrier signal from the carrier signal generating unit ... | 11/17/1992 |
| 4813326 | Method and apparatus for synthesizing music tones with high harmonic content A musical tone signal is synthesized on the basis of a predetermined modulation operation (e.g. an FM or AM operation) employing a modulating signal and a carrier signal respectively having an audio range frequency. The modulating wave signal and/or carri... | 03/21/1989 |
| 4627324 | Method and instrument for generating acoustic and/or visual effects by human body actions A method and apparatus for generating acoustic or visual effects by human body actions, including transducer for generating electrical signals upon influence of human body actions attached to various portions of the human body and, upon a dancing movement... | 12/09/1986 |
| 4492142 | Timbre modulation circuit for electronic musical instruments A timbre modulation circuit for an electronic musical instrument having an automatic rhythm accompaniment system. The timbre modulation circuit is provided in a musical scale tone signal path and includes a means for generating a control pulse series sync... | 01/08/1985 |
| 4429607 | Light beam musical instrument A musical instrument is disclosed in which light beams striking a detector produce various tones and the loudness of the sounds produced is dependent upon the intensity of the light beam which can be changed by interrupting the beam or reflecting the ligh... | 02/07/1984 |
| 4319511 | Tone source for an electronic musical instrument A tone source circuit for electronic musical instruments which enables the selection of a desired one of a plurality of waveshapes of different duty ratios and is suitable for fabrication as an integrated circuit. The tone source circuit is composed of a ... | 03/16/1982 |
| 4271742 | Sound generator for producing ANGKLONG like sound An electronic sound generator is developed for generating a sound similar to that of ANGKLONG (Indonesian terms), which comprises a circuit for generating a series of consequtive rectangular waves. A plurality of envelope wave generation circuits each pro... | 06/09/1981 |
| 4208940 | Device for producing an ensemble effect A device for producing an ensemble effect in an electronic musical instrument. The device has a plurality of parallel electronic delay circuits adapted to be supplied with a musical tone signal, delay time modulating circuits coupled to each of said delay... | 06/24/1980 |
| 4183278 | Driver circuit for tone generator A driver circuit for a tone generator that is adapted to cause the tone generator to produce a pleasant sounding chime. The circuit comprises high and low frequency oscillator circuits whose decaying sawtooth type outputs are summed and modulated to produ... | 01/15/1980 |
| 4141270 | Modulated keyer supply sampling circuit In a chopper keyer electronic organ system, a sampling network samples the drawbar inputs to the chopper keyers in order to provide a separate channel of percussion. The drawbar lines for one or more of the footages are sampled and the sample signal is am... | 02/27/1979 |
| 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 |
| 4003285 | Music signal conversion apparatus Apparatus for converting the relatively rapid rise time, relatively long fall time tone envelopes of a music source output to envelopes having relatively long rise time and relatively rapid fall time includes a sawtooth relaxation oscillator whose output ... | 01/18/1977 |
