Bizarre Patents
A gun that fires a missile, powered by gas "discharged by the operator of the toy."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7276655 | Music synthesis system The invention relates to a music synthesis system for synthesizing a corresponding digital music output according to commands from a music data file. The music data file comprises a plurality of music data units. Each music data unit records related information of t... | 10/02/2007 |
| 6198034 | Electronic tone generation system and method An electronic tone generation system comprises a plurality of portable handheld wireless transmitters, with each transmitter representing at least one music note and being operative to transmit a signal indicative of that at least one note. A receiver rec... | 03/06/2001 |
| 6011213 | Synthesis of sounds played on plucked string instruments, using computers and synthesizers A sound synthesizer for a plucked string instrument simulates noises and transients produced before and after and during the transitions between notes. A particularly convincing synthesis of a plucked string instrument is produced by combining the transie... | 01/04/2000 |
| 5402498 | Automatic intelligent audio-tracking response circuit A circuit automatically adjusts in response to an input audio signal to provide a dc control signal having the release characteristics of the input audio signal. The circuit has an input reference node for receiving a reference signal which is a function ... | 03/28/1995 |
| 4928569 | Envelope shape generator for tone signal control An envelope shape generator generates envelope shape data for controlling a tone signal in the form of data in decibel representation. In performing a rapid attenuation control called "forcing damp" during attenuation of the envelope shape data generated ... | 05/29/1990 |
| 4919031 | Electronic stringed instrument of the type for controlling musical tones in response to string vibration When picking of a string is performed, the vibration of the string is detected accurately and quickly. When a fret operation position is changed during generation of a musical tone caused by the string picking, the pitch of the musical tone is changed to ... | 04/24/1990 |
| 4545279 | Electronic music note generator An electronic music note generator having a volume control circuit using an RC network to control sound amplitude. Signals are formed by the discharge characteristics of an RC network and the voltage level at charging determines the volume of the sound pr... | 10/08/1985 |
| 4397211 | Circuit for producing musical tones A circuit for producing musical tones is disclosed which includes a keyboard for selecting the musical tones, and a tone generator responsive to the keyboard for generating a square wave signal having the frequency of the musical note to be generated. A c... | 08/09/1983 |
| 4367670 | Envelope generator employing dual charge pump An envelope generator for use in an electronic musical instrument, such as an electronic organ, employing a dual charge pump to form the attack and decay portions of the envelope. The envelope generator is adapted to be connected to the envelope control i... | 01/11/1983 |
| 4365533 | Musical instrument A new, performer played, real time, multitonal, multitimbral musical instrument consists of speed and force sensitive keys in which time domain multiplexing is used to find and associate one and only one tone generator, not otherwise busy, with any key th... | 12/28/1982 |
| 4314496 | Music synthesizer There is disclosed herein a music synthesizer which responds to a music note played by a music instrument. The synthesizer has an envelope generator which generates a control signal in relation to the input signal to control the loudness of the synthesize... | 02/09/1982 |
| 4265157 | Synthetic production of sounds A method and apparatus for producing sounds from one or more-time overlapg sequences of one or more electrical pulse signals having a frequency corresponding to the pitch of the sound to be produced from the signals holding the pulse width or pulse pause... | 05/05/1981 |
| 4256002 | Large scale integrated circuit generator chip for electronic organ In an electronic organ or the like constructed of a plurality of large scale integrated circuit (LSI) chips, the present disclosure relates to a generator chip. The chip is operative over one octave of notes, and a string of chips is cascaded to provide a... | 03/17/1981 |
| 4205581 | Keyer system An organ keyer system, especially a keyer system operated by logic level signals, such as occur in multiplexing. The keyer system herein described is especially intended for manufacture by large scale integration techniques, and is designed to provide for the ... | 06/03/1980 |
| 4203337 | Large scale integrated circuit chip for an electronic organ In a modular, expandable organ system comprising a plurality of large scale integrated circuit (LSI) chips an LSI chip is provided which produces frequencies corresponding to notes played on an organ keyboard. Outputs of different duty cycles of rectangul... | 05/20/1980 |
| 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 provide an alternating current control signal to the tone sig... | 05/20/1980 |
| 4200022 | Envelope control causing damper effect on percussive voices of electronic musical instrument A large scale integrated circuit chip is provided with internal tone generators and digital attack and decay features interconnected with external capacitors for controlling the attack and decay of tones. External diodes are wired to the chip and to the e... | 04/29/1980 |
| 4175465 | Circuit for simulating string bass sound In a circuit for simulating the sound produced when a stringed instrument, such as a bass viol, is plucked, square wave signals of different frequencies from a tone generator are combined to produce a synthesized sawtooth waveform which is applied to a lo... | 11/27/1979 |
| 4173915 | Programmable dynamic filter A programmable dynamic filter for use with a time-shared electronic organ or the like includes a filter circuit responsive to a logical state of a control signal for tracking notes generated by the instrument. Means are provided for programming the filter... | 11/13/1979 |
| 4160402 | Music signal conversion apparatus Apparatus for converting the relatively rapid rise time, relatively long fall tone envelopes of a music source output to envelopes having relatively long rise time and relatively rapid fall time and for also varying the frequency of the tone in the nature... | 07/10/1979 |
| 4135425 | Envelope generator for electronic organ An envelope generator for an electronic organ, especially for developing percussion sounds, in which each of at least some of the organ cases having keyers pertaining thereto are provided with envelope control circuits interposed between the keys and the ... | 01/23/1979 |
| 4106384 | Variable filter circuit, especially for synthesizing and shaping tone signals A variable filter circuit, especially for synthesizing and shaping tone signals, in which a variable light source is provided which influences light sensitive resistor elements in the filter circuit. The variable circuit, by the use of selector switches, ... | 08/15/1978 |
| 4099439 | Electronic musical instrument with dynamically responsive keyboard An electronic musical instrument has a keyboard equipped with apparatus for developing a voltage in response to the momentum of operated keys of the keyboard, which voltage is employed to control the amplitude of the sounds produced in response to each ke... | 07/11/1978 |
| 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 |
| 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 the bass signals into a sound output. The circuit is opera... | 10/19/1976 |
| 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 generator has various parameters such as rise time and dec... | 04/27/1976 |
| 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 |
