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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 |
| 7339106 | Electric stringed musical instrument equipped with single vibration sensor provided inside of body An electric contrabass has a bridge structure on a body in which an inner space is defined, and the body is further formed with a slit under the bridge structure so that the lid of the body vibrates like a cantilever; a vibration sensor is provided inside the body, ... | 03/04/2008 |
| 7304232 | Joystick gain control for dual independent audio signals A joystick control (20) mounted on the body (12) of an electric guitar (11) adjacent to the customarily picked section of the strings (16) provides convenient simultaneous independent gain control of two pickup signals. A pick may be held... | 12/04/2007 |
| 7285713 | Stringed musical instrument equipped with sensors sensitive to vibration components and bridge with built-in sensors An electric acoustic stringed musical instrument is a combination between an acoustic stringed musical instrument and an electric system; while a player is bowing on the strings, the strings not only laterally vibrate but also are repeatedly elongated and shrunk so ... | 10/23/2007 |
| 7285714 | Pickup for digital guitar A reluctance pickup for a guitar including a pair of magnetic pole pieces disposed within wire coils. The coils are oppositely wound and wired in series. Each pole piece has an elongated magnetic pole end extending above its respective coil. The pole pieces are disp... | 10/23/2007 |
| 7279631 | Stringed instrument with embedded DSP modeling for modeling acoustic stringed instruments Disclosed is a stringed instrument with embedded DSP modeling capabilities to model an acoustic stringed instrument. The stringed instrument has a body and a plurality of strings and each of the plurality of strings is respectively coupled to a pickup to detect a vi... | 10/09/2007 |
| 7271332 | Amplification of acoustic guitars A device for mixing the outputs of two sensors. The device includes a first input for receiving a signal from at least one first sensor, a second input for receiving a signal from at least one second sensor, a low pass filter for passing signal components of the fir... | 09/18/2007 |
| 7220912 | Digital guitar system A digital guitar system and method includes a digital guitar and a digital guitar interface device, and a method of converting a conventional guitar into a digital guitar. The guitar is adapted to generate analog audio signals, convert those signals into digital sig... | 05/22/2007 |
| 7220913 | Breakout box for digital guitar A guitar interface device for a digital guitar system is adapted to receive digital signals, convert those signals into analog signals, and output the analog signals, so that the digital guitar system may be utilized with conventional analog equipment. The interface... | 05/22/2007 |
| 7208673 | Bi-directional switch apparatus with electric guitar applications A selector switch for musical instruments, such as electric guitars. is provided having a single, manually operated toggle member adapted to perform greater functionality. A selector switch is disclosed which indexes longitudinally for the electrical connection of p... | 04/24/2007 |
| 7200187 | Modulator for digital amplifier A digital modulator for driving a digital amplifier. The digital modulator has a subtractor which receives a digital input signal. A filter amplifier receives the output of the filter amplifier and is tuned to an idle frequency of the digital modulator. The digital ... | 04/03/2007 |
| 7166794 | Hexaphonic pickup for digital guitar system A novel multi-signal guitar pickup is provided. The pickup includes a coil assembly for each string that is capable of generating two signals which can be combined together in a predetermined manner to generate an x-plane and a y-plane signal. The pickup is particul... | 01/23/2007 |
| 6981076 | Mechanism to disable dynamically a computer audio input/output connector An apparatus and method are presented for dynamically disabling a first audio input/output (“I/O”) connector when an audio I/O device is coupled to a second audio I/O connector, locating the disablement point to reduce significantly any spurious noise coupled on... | 12/27/2005 |
| 6940493 | Socializing remote communication Remote, non-verbal interpersonal communication is facilitated between communication stations located remotely from each other. A first communication station registers proximity of a user thereto and communicates to a second communication station a signal indicative ... | 09/06/2005 |
| 6909041 | Sound field control method and sound field control system Reverberation characteristics of an original sound field and a reproduction sound field are measured and a difference between the reverberation characteristics is obtained. A reflected sound pattern added to reproduction sound is calculated so that the reverberation... | 06/21/2005 |
| 6881892 | Method of configurating acoustic correction filter for stringed instrument A method is provided for designing an acoustic correction filter applicable to a stringed instrument, which is composed of a string member operable to undergo a vibration, a support member for supporting the string member, a body member responsive to the vibration t... | 04/19/2005 |
| 6791023 | Bowed stringed musical instrument for generating electric tones close to acoustic tones An electric violin has a combination of two sorts of vibration detectors for transverse vibration components and vertical vibration components, a low-pass filter connected to the vibration detector for the transverse vibration components and a high-pass filter conne... | 09/14/2004 |
| 6448488 | Measurement and processing of stringed acoustic instrument signals A system and a method of measuring, decomposing, processing and uniquely recombining forces and vibrations acting on stringed musical instruments (SMI). The system utilizes a digital signal processor and reproduces the musical sound characteristics of an ... | 09/10/2002 |
| 6222110 | Simulated tone stack for electric guitar A combination of limited data, 3D linear interpolation, and a unique simulation circuit are combined to provide a programmable tone control that can simulate any desired tone stack. In accordance with one aspect of the invention, it has been found that a ... | 04/24/2001 |
| 6111186 | Signal processing circuit for string instruments A signal processing circuit, for each string of a musical instrument which string is individually tuned to a frequency, includes a transducer adjacent to the string and an equalizer connected to an output circuit. To emulate an acoustic instrument, the eq... | 08/29/2000 |
| 6049034 | Music synthesis controller and method A music synthesizer has one or more sensors that generate a respective plurality of sensor signals, at least one of which is an audio frequency sensor signal. Electronic circuitry, such as a specialized circuit or a programmed digital signal processor or ... | 04/11/2000 |
| 5877447 | Compensation circuit for piezoelectric pickup The signal from a piezo-electric transducer in an electro-acoustic guitar is modified by a variable depth notch filter. The notch filter includes two paths between an input and a summation circuit. The signals in the two paths are 180° out of phase and o... | 03/02/1999 |
| 5866836 | Low frequency sound monitoring system for musicians A sound monitoring system includes a resonator platform comprised of musician support plate, a base plate, and at least one transducer. The musician support plate acts as a surface upon which the user may stand or sit. In response to high-frequency filter... | 02/02/1999 |
| 5731536 | Audio signal processing circuit for electric guitars for simulating the sound produced by the combination of an amplifier and microphone The device is designed to receive at its input the analog AC output signal of an electric guitar either directly from the guitar, its amplifier or a speaker. The incoming signal is fed to three series connected circuits which successively boost the bass a... | 03/24/1998 |
| 5591931 | Musical signal multiplexing circuit and demultiplexing system A circuit for multiplexing three or more audio band electrical signals into two audio band electrical signals which can be provided to a stereo input and a circuit and computer method for demultiplexing the signals. In particular, six signals from the six... | 01/07/1997 |
| 5583309 | Filter apparatus for an electronic musical instrument A musical tone generating apparatus is provided for a keyboard electronic musical instrument. The apparatus consists of a musical tone source, a coefficient generator, a digital filter and so on. The coefficient generator generates at least one time depen... | 12/10/1996 |
| 5396025 | Tone controller in electronic instrument adapted for strings tone A tone controller includes: a string counterpart member; a bow; a friction sound detector for detecting a friction sound generated by rubbing together the bow and the string counterpart member; and a signal processor for generating a tone control signal r... | 03/07/1995 |
| 5389730 | Emphasize system for electronic musical instrument An emphasize system for an electronic musical instrument including filter and control device. The filter extract and output predetermined frequency range component of an input musical tone signal. The control device control the level of an output from the... | 02/14/1995 |
| 5367120 | Musical tone signal forming device for a stringed musical instrument A musical tone signal forming device for an electric string music instrument having at least one pickup for detecting and delivering vibration of a string as an electric musical sound signal, including at least one comb filter having the electric musical ... | 11/22/1994 |
| 5340942 | Waveguide musical tone synthesizing apparatus employing initial excitation pulse A musical tone synthesizing apparatus conducts musical tone synthesis based on the tone generation mechanism of an acoustic musical instrument, and generates quickly and accurately desired musical tones in response to the operation of the beginning of ton... | 08/23/1994 |
| 5268527 | Audio power amplifier with reactance simulation A preconditioned signal that is applied to the input of an audio power amplifier for providing a perceived control of reactance simulation (or the Damping Factor) of the amplifier. A low frequency fundamental resonance is combined with a slowly rising hig... | 12/07/1993 |
| 5140890 | Guitar control system A guitar control system using multiple string processing channels for developing pitch and peak signals for a multiple of string vibrations. Pitch data is multiplexed into a microprocessor along with the peak data and the programmed microprocessor outputs... | 08/25/1992 |
| 5018429 | Waveform generating apparatus for an electronic musical instrument using filtered components of a waveform Waveform data is read out from a memory which stores the waveform data at a rate corresponding to a designated pitch. The readout data is supplied to digital filters, and two or more different filtering operations are executed in the digital filters. Two ... | 05/28/1991 |
| 5020109 | Apparatus for modulation of the timbre of an electrical amplifier, in particular for guitars In an apparatus for modulation of the timbre of an electrical amplifier, in particular for guitars, a cylindric coil (2), which can be disposed downstream of an amplifier output, and a bar magnet (3) inside the cylindric coil (2), which can be deflected a... | 05/28/1991 |
| 4884486 | Electronic scratch filter for bowed instruments The tone signal from a transducer monitoring the music vibrations of a bowed musical instrument contains an objectionable friction noise component which is removed by passing the tone signal through a high-pass filter having a variable cutoff frequency wh... | 12/05/1989 |
| 4823667 | Guitar controlled electronic musical instrument Apparatus is disclosed whereby an electronic musical tone generator is controlled in response to a musical instrument using mechanically vibrated strings. A bank of digital note filters is associated with each string to find the closest true musical note ... | 04/25/1989 |
| 4819537 | Helmholtz resonant simulator For electronically reproducing the total sound produced by a musical instrument, the musical instrument comprises a plurality of components each of which produces one aspect of the total sound, an electronic acoustic reproduction system comprises vibratio... | 04/11/1989 |
| 4649785 | Musical timbre modification method For amplified musical instruments such as electric guitars, this method of extending the range of timbre variation available from a "wah" type of pedal controlled sound modification effect provides musicians with increased flexibility of expression by inc... | 03/17/1987 |
| 4481854 | Control for musical instruments The invention relates to an electrical stringed and fretted musical instrument which has at least two pick-ups and a bass boost filter means and a high boost filter means. The output of the instrument is a combination of the magnitude of the pick-ups and ... | 11/13/1984 |
| 4422360 | Device for improving piano tone quality An amplifier circuit for automatically altering in a controlled way the reproduced tones of an electronic piano comprises a main signal path for the fundamental tones and an overtone path including a plurality of tone altering electronic networks and fiel... | 12/27/1983 |
