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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7390960 | Electronic signal processor An electronic signal processor for processing signals includes a complex first filter, one or more gain stages and a second filter. The first filter is characterized by a frequency response curve that includes multiple corner frequencies, with some corner frequencie... | 06/24/2008 |
| 7295809 | Portable audio playback device with bass enhancement Wirelessly linking a portable audio device to an external audio system permits the external audio system to generate audible signals that enhance local playback of audio by the portable device. For example, the portable device wirelessly transmits lower frequency co... | 11/13/2007 |
| 7230178 | Handy musical instrument responsive to grip action In a music system, an input unit is manipulated for inputting a signal representative of a performance operation amount rendered by a performer, and an output unit is provided for outputting a music sound in response to the signal fed from the input unit. The input ... | 06/12/2007 |
| 7060885 | Music reproduction system, music editing system, music editing apparatus, music editing terminal unit, music reproduction terminal unit, method of controlling a music editing apparatus, and program for executing the method There is provided a music reproduction system which enables music editing and acoustic effect application by simple operations, for realizing a desired musical concept in an operator's mind. An operating terminal that can be carried by an operator generates motion i... | 06/13/2006 |
| 6931124 | Soft mute circuit A soft mute circuit includes a programmable amplifier controlled by a register. Data is stored in the register from an adder that combines the current data in the register with a second number for increasing or decreasing the gain of the amplifier. A summation circu... | 08/16/2005 |
| 6064743 | Wavetable audio synthesizer with waveform volume control for eliminating zipper noise A digital wavetable audio synthesizer is described. The synthesizer can generate up to 32 high-quality audio digital signals or voices, including delay-based effects, at either a 44.1 KHz sample rate or at sample rates compatible with a prior art wavetabl... | 05/16/2000 |
| 5814752 | Musical instrument crossover circuits and method of using same A musical instrument amplifier system (FIGS. 1 and 2) with a frequency selective crossover circuit (10) using passive band pass filters (36, 44) to separate the amplified signals from the power amplifier (14) of an amplifier system (12) into low frequency... | 09/29/1998 |
| 5744744 | Electric stringed instrument having automated accompaniment system An electric stringed instrument having an integral accompaniment system is proposed. The vibrations of the strings on the electric stringed instrument are detected as analog signals by a pickup device. A portion of the detected signal is extracted, has it... | 04/28/1998 |
| 5742695 | Wavetable audio synthesizer with waveform volume control for eliminating zipper noise A wavetable audio synthesizer with means for eliminating zipper noise caused by large volume increments, especially at slower rates of volume increment. The wavetable audio synthesizer includes shift circuitry which stores the value of volume increment in... | 04/21/1998 |
| 5506371 | Simulative audio remixing home unit The present invention pertains to audio equipment simulative of musical instruments. The invention allows a user to simulate the playing of music reproduced from an external audio source. The present invention allows a user to quickly modify the amplifica... | 04/09/1996 |
| 5455380 | Electronic musical instrument altering tone sound effects responsive to number of channels or tone range An electronic musical instrument changes sound effects, such as resonance and reverberation, during a performance. The instrument has a tone-ON channel counter, for counting keys that are simultaneously depressed; an output channel determination unit, for... | 10/03/1995 |
| 5414210 | Multiple oscillator electronic musical instrument having a reduced number of sub-oscillators and direct-read/write of modulation control signals An electronic musical instrument according to the present invention has oscillators for generating a tone waveform; a modulator for modulating a musical tone; a modulation controller for determining a degree of modulation to be performed by the modulator;... | 05/09/1995 |
| 5220121 | Melody supplement control apparatus A melody supplement control apparatus is disclosed wherein supplementary tones for melody tones are produced according to predetermined rules, and the degree of the addition of the aforesaid supplementary tones to the aforesaid melody tones is determined ... | 06/15/1993 |
| 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 |
| 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 |
| 5022305 | Tube overdrive pedal operable using low voltage DC battery eliminator The distortion pedal for electric guitar and other electronic musical instruments employs vacuum tube circuitry operated by low voltage "battery eliminator" DC power supply. A pull-up resistor biasing circuit on the vacuum tube grid improves input and out... | 06/11/1991 |
| 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 |
| 4913025 | Apparatus for controlling sound volume of electronic musical instrument An apparatus for controlling the sound volume of an electronic musical instrument has a row of volume select depress switches. In response to depression of any one switch, a corresponding sound volume is produced. The sould volume increases for each succe... | 04/03/1990 |
| 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 |
| 4699038 | Touch sensitive electronic musical or sound generating instrument A touch sensitive electronic musical or sound generating instrument is disclosed. The invention utilizes digital techniques to sense how hard any one of a plurality of push buttons on a keyboard is depressed or actuated. The instrument generates a desired... | 10/13/1987 |
| 4694725 | Sound generating system for a keyboard A method and apparatus for establishing the volume level of a tone generator associated with a keyboard in which the tone generator will output a click tone when each key on the keyboard is actuated. In establishing the volume level of a click tone, the k... | 09/22/1987 |
| 4676134 | Electronic string instrument with bend detector An electronic musical instrument of the stringed type wherein bending of a string results in a change in a parameter of the sound produced. At the bridge of the instrument, each string is connected with a leaf spring which is moved towards the nut end of ... | 06/30/1987 |
| 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 |
| 4628785 | Method and apparatus for calibrating a keyboard A calibration system for the keyboard of an electronic musical instrument. Compression of the key causes an output signal to be generated which varies in accordance with the amount of key depression. When the key is depressed to a nominally fully depresse... | 12/16/1986 |
| 4621557 | Electronic musical instrument An electronic musical instrument which is capable of attaining the tonal coloration and "feeling" of an acoustic instrument and wherein the pitch, timbre, and loudness of each sound which is produced can be controlled by the performer in real time in an a... | 11/11/1986 |
| 4577540 | Electronic musical instrument having a pan-pot function Digital pan-pot data supplied from a CPU is supplied to first and second analog multiplexers, and control signals are selected among a plurality of control signals obtained by dividing an output from a reference voltage generator to have mutually compleme... | 03/25/1986 |
| 4566363 | Electronic musical instrument A through hole is formed in the top wall of an inhalation hole which communicates with the outside by means of an elongate channel. The through hole is closed by an elastic member having a bulging portion. A projection is formed in the center of the bulgi... | 01/28/1986 |
| 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 |
| 4449437 | Automatic piano The present invention is an electronic piano that includes various "easy play" features that enable a person with little musical training to play the piano producing music similar to that of a skilled musician. The "easy play" feature automatically create... | 05/22/1984 |
| 4430917 | Hand-held musical instrument and systems including a man-machine interface apparatus A hand-held electronic musical instrument and system has a plurality of resistance elements that have adjacent thereto indentations or notches, or other tactile structures for locating discrete notes. Each resistance element is connected to a circuit for ... | 02/14/1984 |
| 4384506 | Polyphonic electronic musical instrument producing prominent solo tone An electronic musical instrument of a polyphonic type comprises, first tone generating means capable of producing, in a first musical tone property, a plurality of musical tones respectively corresponding to a plurality of depressed keys, and further comp... | 05/24/1983 |
| 4341140 | Automatic performing apparatus In an automatic performing apparatus, an amount of change in a motion of a moving element provided in a baton is detected, and the detected change amount is converted into an electrical signal. A tempo clock signal generator provided in the apparatus is d... | 07/27/1982 |
| 4333376 | Apparatus for reinforcing notes selected by more than one key An improved system for increasing the loudness of any single note selected by playing more than a single key. A command circuit responsive to manual control, including stop tabs, enables a tone signal to be produced in response to the playing of one key o... | 06/08/1982 |
| 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 |
| 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 |
| 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 |
| 4290335 | High frequency roll-off circuit A high frequency roll-off circuit for a gain stage including an amplifier having a feedback network together with a dual potentiometer comprising two serially connected gang operated resistors connected between the amplifier feedback port and through a ca... | 09/22/1981 |
| 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 |
| 4286492 | Control for electronic amplifiers A circuit which allows for the simultaneous control of the bias voltages applied to the screen grids and control grids of output tubes while maintaining the ratio of said voltages, thereby providing a method for selectively varying a single plate characte... | 09/01/1981 |
| 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 |
