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| Number | Title | Issue Date |
| 7196257 | Computer aided piano voicing The present invention discloses a method for determining an optimal piano hammer felt voicing technique for voicing an unvoiced tone in a piano so as to achieve a predetermined standard of tonal quality associated with a given voiced tone using a computer program. T... | 03/27/2007 |
| 7022889 | Isomerization process using novel catalyst A process for the isomerization of a feedstream comprising C5–C6 hydrocarbons where the process involves charging hydrogen and a feedstream comprising at least normal C5–C6 hydrocarbons into an isomerization zone and c... | 04/04/2006 |
| 7015175 | High-activity isomerization catalyst and process A catalyst and process is disclosed to selectively upgrade a paraffinic feedstock to obtain an isoparaffin-rich product for blending into gasoline. The catalyst comprises a support of a sulfated oxide or hydroxide of a Group IVB (IUPAC 4) metal, a first component of... | 03/21/2006 |
| 6979396 | Combination reforming and isomerization process A reforming and isomerization process has been developed. A reforming feedstream is charged to a reforming zone containing a reforming catalyst and operating at reforming conditions to generate a reforming zone effluent. Hydrogen and an isomerization feedstream is c... | 12/27/2005 |
| 6806413 | Oscillator providing waveform having dynamically continuously variable waveshape An oscillator for digital music synthesis that provides a smooth waveform that is rich in harmonic content and whose shape is continuously and dynamically variable over a wide range of harmonically rich shapes. The oscillator is efficient in that it generates the sh... | 10/19/2004 |
| 5728963 | Low-power music synthesizer and transmitter This patent application describes a low-power electronic music synthesizer (1) which may be combined with a radio transmitter (2) for use in audio-kinetic sculptures or toys. The invention consists of a low-voltage circuit implementing a multiple voice an... | 03/17/1998 |
| 5543578 | Residual excited wave guide Synthesizer models for emulating musical instruments can be improved using an analysis model that compares the output signal of the model to a recording of a desired sound and derives a residual signal that can be used to correct the model. When the origi... | 08/06/1996 |
| 5459280 | Musical tone synthesizing apparatus A musical tone synthesizing apparatus for generating a musical tone which is influenced not only by blowing pressure and embouchure, etc. but also effected by the movement of a performer's tongue. The apparatus comprises an operating part WC having a mout... | 10/17/1995 |
| 5371319 | Key assigner for an electronic musical instrument A key assigner, for an electronic musical instrument that has a plurality of oscillators and that employs for the production of a specific timbre only the number of oscillators that is actually required. The key assigner comprises a control for, upon rece... | 12/06/1994 |
| 5196640 | Control mechanism for electronic musical instrument A musical tone control mechanism for an electronic musical instrument in which a musical tone adjustment rotary body having a rotating shaft extending along the longitudinal direction of a keyboard is provided, the rotary body is divided into a plurality ... | 03/23/1993 |
| 5194684 | Method and apparatus for selective reduction of upper harmonic content in digital synthesizer excitation signals Variable frequency sawtooth waveforms are often utilized as an excitation signal in a digital musical synthesizer. A problem exists at lower sampling rates in such systems due to an aliasing problem which occurs at frequencies near the Nyquist rate. Low p... | 03/16/1993 |
| 5133014 | Semiconductor emulation of tube amplifiers A distortion synthesizer, having a first distortion circuit, a tone control circuit for altering the tonality of the first distorted signal and a second distortion circuit for introducing harmonics into said tone controlled signal. At least one of the dis... | 07/21/1992 |
| 5131044 | Amplifier circuitry with mode compensation and selectable gain and frequency response in pre and post distortion circuits The present invention employs gain compensation such that when the amplifier is in the clean mode, the gain is at a selected level and when the amplifier is in the lead mode gain is decreased. In one embodiment a selectable brightness control is employed ... | 07/14/1992 |
| 5058480 | Swing activated musical tone control apparatus A musical-tone-control apparatus having a baton which is provided with an acceleration sensor, and which is swung by a performer is provided. The intensity of a swing of the baton is detected by the acceleration sensor, and controls the tone-generation ti... | 10/22/1991 |
| 4915002 | Music synthesizer adjunct A music synthesizer has a pivotable and slidable bar mounted in front of the keyboard of the synthesizer, the bar disposed generally parallel thereto whereby a wrist of a player may cause the bar either to pivot about an external hinge or pivot, or to sli... | 04/10/1990 |
| 4909116 | Electronic musical instrument generating background musical tone An electronic musical instrument includes a keyboard, a first tone generator, a second tone generator, a hold switch, and a control unit. The keyboard designates a pitch of a musical tone to be generated. The first tone generator generates a first musical... | 03/20/1990 |
| 4716804 | Interactive music performance system An interactive music performance system employs a synthesizer, a programmable computer, and at least one performance device for permitting a user input. The computer is programmed with algorithms which automatically generate controls and interpret a perfo... | 01/05/1988 |
| 4628786 | Velocity responsive musical instrument keyboard A keyboard system in a keyboard controlled musical instrument includes a pair of spaced apart electrode members and a pickup movable in the space intermediate the electrode members. Respective voltages are impressed on the electrodes to establish an elect... | 12/16/1986 |
| 4475427 | Frequency independent ramp generator A tone generator for an electronic musical instrument is operable for producing a highly stable tone signal over an extended frequency range. The tone generator comprises a timing circuit defining first and second time intervals occurring in respective ti... | 10/09/1984 |
| 4326442 | Electronic musical instruments with tone color selection In an electronic musical instrument of the type comprising a musical tone signal generator responsive to depression and release of a key of a keyboard for generating a musical tone signal, and a selector including a plurality of tone color selection switc... | 04/27/1982 |
| 4304161 | Device for the manual playing of electronic musical instruments Device for the manual playing of electronic musical instruments. Each manual has three groups of keys respectively arranged along three tilting bars, for operation by three fingers on one hand of the player. When a key is pressed at one end, it tilts the ... | 12/08/1981 |
| 4291604 | Memory override system for programmed electronic synthesizer A programmable electronic musical synthesizer includes a memory controlling a plurality of parameter circuits according to a selected group of stored parameter signals for producing a desired timbre of sound. A memory override system is responsive to manu... | 09/29/1981 |
| 4290333 | Expression means of electronic musical instrument An expression means has been developed which can accentuate only a selected musical sound, e.g., melody, out of melody, accompaniment chord and bass sound generated in an electronic musical instrument and does not accentuate other sounds. The expression m... | 09/22/1981 |
| 4287804 | Electronic musical instrument with timbre selection A timbre-select type electronic musical instrument in which the application of a sound effect unsuitable for the selected timbre is automatically blocked. This instrument includes means for detecting that a certain timbre is selected and means responsive ... | 09/08/1981 |
| 4250496 | Audio chime-signal generating circuit A circuit for generating an audio chime signal, for use on a passenger aircraft, for example to attract the attention of the passengers prior to a public announcement. High and low frequency oscillators are switched on for respective time periods, the low... | 02/10/1981 |
| 4244261 | Electronic keyboard musical instrument A manually operated pressure sensitive button assembly is arranged by the side of the keyboard on the top front panel of the instrument, each button being electrically and operationally coupled to an associated element in the main processing system of mus... | 01/13/1981 |
| 4238985 | Electronic musical instrument An electronic musical instrument of a type capable of producing a musical tone corresponding to the tone pitch of a depressed key by controlling oscillation frequency of a voltage-controlled type oscillator by a pitch voltage corresponding to the tone pit... | 12/16/1980 |
| 4236435 | Keying system in an electronic musical instrument A keying system in an electrocin musical instrument comprises a circuit for generating harmonic level control voltages for controlling the levels respectively of harmonics (inclusive of the first harmonic, i.e., the fundamental tone), a circuit provided i... | 12/02/1980 |
| 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 |
| 4189971 | Electronic musical instrument system having independent tone cabinet An electronic musical instrument system comprising an electronic musical instrument body and a separate tone cabinet connected together by a cable. The electronic musical instrument body includes a plurality of tone coloring circuits to produce different ... | 02/26/1980 |
| 4176329 | Tone control circuit A tone control circuit using only one potentiometer to provide bass or treble control is described. An integrator and a differentiator are connected to the input of the circuit and their outputs to the two ends of the potentiometer. Electrical connection ... | 11/27/1979 |
| 4111092 | Electronic musical instrument In an electronic musical instrument a key touch signal is generated in response to the operation of a key, and a plurality of control signals having different waveforms are produced from the key touch signal. Different control signals are used for independentl... | 09/05/1978 |
| 4085647 | Electronic musical instrument An electronic musical instrument capable of controlling tone pitch, tone color, volume etc. of a musical tone by a sliding operation to conduct such on effect as portamento. The instrument according to the invention can produce a control signal proportion... | 04/25/1978 |
| 4050343 | Electronic music synthesizer An electronic music synthesizer is disclosed in which the sound producing chain includes a voltage-controlled oscillator, band-pass filter, low-pass filter, and amplifier in which selected control currents are supplied to low impedance points within the s... | 09/27/1977 |
| 4016792 | Monophonic electronic musical instrument A monophonic electronic music synthesizer in which keying signals are collected on common note busses and common octave busses. Tone signals from a top octave tone generator are gated by separate note gates controlled by keying signals on common note buss... | 04/12/1977 |
| 4012981 | Electronic musical instrument provided with a waveform converter for changing a sawtooth wave tone signal into a rectangular wave tone signal A waveform converter for use with an electronic musical instrument comprises an input for receiving a sawtooth wave tone signal, an output for delivering a rectangular wave tone signal, a semiconductor active element adapted to switch the output voltage f... | 03/22/1977 |
| 4012980 | Control circuitry for a voltage-controlled type electronic musical instrument This invention discloses control circuitry for an electronic musical instrument including a keyboard, a voltage divider circuit coupled to the keyboard to provide a pitch determining voltage signal corresponding to a depressed key, a storage capacitor for... | 03/22/1977 |
| 4002095 | Waveform converter for use with an electronic musical instrument and capable of controlling the duty factor of a rectangular wave tone signal A waveform converter for an electronic musical instrument wherein an input rectangular wave tone signal is supplied to a frequency-voltage converter to generate a D.C. voltage control signal having a voltage level corresponding to the frequency of the inp... | 01/11/1977 |
| 3986423 | Polyphonic music synthesizer An electronic music synthesizer including a keyboard control system for enabling multiple independent voice channels (voices) to be controlled by the keyboard in a musically pleasing manner. The control system responds to a keyboard of M keys to control N... | 10/19/1976 |
| 3979990 | Keyboard arrangement in electronic musical instrument A keyboard arrangement in electronic musical instrument comprising playing keys movable to cover a predetermined distance in normal play and also being able to move farther in excess of said distance in accordance with the pressure applied to the keys, a ... | 09/14/1976 |
