Foot Control Patents (Class 84/721)
  • Patent number: 10923090
    Abstract: A music pedalboard having a built-in patch cord and designed for use with a plurality of effects pedals is provided. The pedalboard includes a board designed to receive a first set of effects pedals arranged along a first row on the board and a second set of effects pedals arranged along a second row on the board, and a patch cord coupled to the bottom face of the board and having a first end coupled to a first side face of the board and a second end coupled to a second opposing side face of the board. The first end of the patch cord operably connects to an output of a last effects pedal in the first set of effects pedals and the second end of the patch cord operably connects to an input of a first effects pedal in the second set of effects pedals.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: February 16, 2021
    Inventor: Frank Dale Boxberger
  • Patent number: 10468003
    Abstract: An audio foot pedal having an activation arrangement comprising a control button and a stationary part, the control button being secured to the stationary part for relative movement along a travel range, the activation arrangement providing a control signal in response to movement of said control button, the audio foot pedal further comprising at least one signal processing arrangement arranged to execute at least two different functional modes, wherein at least one of said functional modes, in response to said control signal, variably controls a signal processing of audio signals communicated to said at least one signal processing arrangement thereby producing an audio output signal to an audio output, and wherein said control signal also controls switching between said at least two functional modes.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: November 5, 2019
    Assignee: MUSIC Tribe Global Brands Ltd.
    Inventor: Thomas Sirius Andersen
  • Patent number: 8957297
    Abstract: In one embodiment, a programmable pedalboard for a musical instrument is provided. The pedalboard includes a docking station for receiving a removable portable computer that provides a plurality of instrument effects. The docking station is configured to receive an audio signal from a musical instrument and to modify the audio signal from the musical instrument based on at least one instrument effect from the plurality of instrument effects.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: February 17, 2015
    Assignee: Harman International Industries, Inc.
    Inventors: Robin M. Urry, John D. Hanson, James D. Pennock, James E. Lambrick, William E. Clements
  • Patent number: 8895831
    Abstract: An electronic piano includes a tone signal synthesizing system implemented by software, keys and key sensors monitoring the keys and reporting the key positions to the tone signal synthesizing system, and the tone signal synthesizing system includes damper model calculating modules for determining resistance against vibrations of wires of an a piano, a hammer model calculating module for determining force exerted on the wires, string model calculating modules for determining force exerted on an instrument body of the piano by the wires on the basis of the resistance and force exerted on the wires, an instrument body model calculating module for determining displacements of instrument body on the basis of the force exerted on the instrument body and an air model calculating module for determining a sound pressure at an observation point from the displacement of instrument body.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: November 25, 2014
    Assignee: Yamaha Corporation
    Inventor: Eiji Tominaga
  • Patent number: 8785758
    Abstract: An electronic hi-hat cymbal controller is disclosed. The controller includes a hi-hat cymbal stand with a foot pedal configured and arranged to mechanically lift a control shaft. A lower cymbal is supported by the hi-hat cymbal stand. An upper cymbal is supported by the control shaft and oriented over the lower cymbal. And a position detector is configured and arranged to detect the position of the control shaft relative to the hi-hat cymbal stand.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: July 22, 2014
    Assignee: InMusic Brands, Inc.
    Inventor: Jan Wissmuller
  • Patent number: 8686275
    Abstract: A piano is equipped with an actuator that moves the piano pedal mechanism in a manner that reproduces the pedaling effects of an original performance with high accuracy. The actuator comprises a solenoid, a permanent magnet, a velocity sense coil, and a Hall-effect sensor. The Hall-effect sensor provides an indication of the displacement of the solenoid plunger in accordance with an inverse-square law. Closed-loop feedback control is provided to effect a very true reproduction of pedaling effects. Automatic calibration allows for simple installation.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: April 1, 2014
    Inventor: Wayne Lee Stahnke
  • Patent number: 8680390
    Abstract: Highly expressive and flexibly programmable foot-operated controllers are described. Specific implementations are intended for musical applications and allow musicians an unprecedented degree of control of a wide variety of musical components and subsystems for recording and/or performance.
    Type: Grant
    Filed: October 14, 2010
    Date of Patent: March 25, 2014
    Assignee: Kesumo LLC
    Inventors: Keith McMillen, Conner Lacy
  • Patent number: 8624099
    Abstract: A foot control for control of musical effects from a musical instrument, the instrument having an electrical signal output operable to send signals to a speaker system, the control having a housing with at least one side wall; a roller rotatably mounted in the housing, a roller surface portion exposed and extending away from the housing for contact by a foot, to enable rotation of the roller by the foot; and, circuitry within the base connectable with the instrument and operable in response to rotation of the roller, to vary signals from the instrument.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: January 7, 2014
    Inventor: Andrew T Osborne
  • Patent number: 8546676
    Abstract: A pedal device for an electronic percussion instrument, including: a base; a foot board supported at its first end portion to the base and configured to pivot by depression; an arm rotatably supported at its first end at a pivot point located near to a second end portion of the foot board, the arm being pivotable about the pivot point; a mass portion provided near to a second end of the arm; a regulating portion for regulating a locus of displacement of the mass portion when the foot board is moved from a depression start position to a depression end position; and a stopper portion provided on the base for defining the depression end position by contacting the mass portion in a forward stroke of depression, the regulating portion regulating the locus of the displacement of the mass portion so as not to contain a downward component in the forward stroke.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: October 1, 2013
    Assignee: Yamaha Corporation
    Inventor: Ryuji Hashimoto
  • Patent number: 8525015
    Abstract: A DC battery powered sound effect pedal housing with sound effect circuitry mounted therein and a battery terminal connector for being connected to battery terminals for powering the circuitry, a base and an adapter frame removably mounted intermediate the housing and the base with the adapter having said frame and an adapter power cord mounted to frame for transmitting DC power to the battery terminal connector whereby a conventional DC battery power sound effect pedal is converted to one being powered from an online AC power source without physically changing the base and housing. A convention power cord is used be powered from an AC power source to provide a DC power output that is plugged into the jack of the adapter power cord.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: September 3, 2013
    Inventor: Timothy D. Armstrong
  • Patent number: 8509692
    Abstract: Disclosed is a system and method for the real-time wireless transmission of a digital audio signal and control data. A transmitter may be coupled to an audio source. The transmitter includes a processor to combine control data with a digital audio signal from the audio source and the processor wirelessly transmits the combined control data and digital audio signal to a receiver. The receiver includes a processor that is used to receive the combined control data and digital audio signal and to process the control data to perform a user pre-defined function.
    Type: Grant
    Filed: April 13, 2009
    Date of Patent: August 13, 2013
    Assignee: Line 6, Inc.
    Inventors: Marcus Ryle, Guy Coker
  • Patent number: 8471136
    Abstract: An effects pedal including a first stage configured to asymmetrically limit an input signal, and a second stage configured to symmetrically clip the asymmetrically limited signal.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: June 25, 2013
    Assignee: Fulltone Musical Products, Inc.
    Inventor: Michael Fuller
  • Patent number: 8378204
    Abstract: A pedal device for an electronic keyboard apparatus adds sound effects to musical notes generated by the electronic keyboard apparatus in response to an operator depressing the pedal device. A first reaction force application device is configured to apply a first reaction force countering a depression of the pedal by the operator from an initial state to a specified state to produce a first reaction force, wherein the first reaction force increases as the pedal is depressed from the initial state to the specified state. A second reaction force application device that is configured to apply a second reaction force countering a depression of the pedal by the operator after the specified state, wherein after the specified state the first reaction force and the second reaction force are applied to the pedal.
    Type: Grant
    Filed: December 23, 2010
    Date of Patent: February 19, 2013
    Assignee: Roland Corporation
    Inventor: Yoshihiko Arayama
  • Patent number: 8338689
    Abstract: An electric instrument music control device is provided having at least two multi-axis position sensors. One sensor is a reference multi-axis position sensor having at least one axis held in a fixed position. Another sensor is a moveable multi-axis position sensor rotatable about at least one axis corresponding to the at least one axis of the reference multi-axis position sensor. The electric music control device also includes a processor in communication with both the reference multi-axis position sensor and the moveable multi-axis position sensor. The processor calculates an angular difference in response to receiving the angular position of the at least one axis of the reference multi-axis position sensor and the angular position of the at least one axis of the moveable multi-axis position sensor. The angular difference correlates to a music effect of an electric instrument.
    Type: Grant
    Filed: August 25, 2010
    Date of Patent: December 25, 2012
    Assignee: Telonics Pro Audio LLC
    Inventor: David W. Beaty
  • Patent number: 8084681
    Abstract: A combination distortion pedal and amplifier includes a foot pedal controls the distortion and the amplification of audio signals. The level of distortion and amplification are determined by the position of the foot pedal with a low level of distortion and amplification when the foot pedal is in a released position and a high level of distortion and amplification when the foot pedal is depressed. Various intermediate distortion and amplification levels are provided when the foot pedal is in positions between fully released and fully depressed.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: December 27, 2011
    Inventor: Neal Schon
  • Patent number: 7880078
    Abstract: Respective sets of black keys and white keys of respective octaves of a keyboard 10 are defined as specific key range, respectively, to assign various tone colors of percussion instruments of a drum set to a plurality of keys included in the respective specific key ranges of the octaves. A specific key range has secondary key ranges to assign tone colors produced by different playing techniques of the same musical instrument. A depression of any key of a specific key range results in generation of a musical tone having a tone color of a percussion instrument assigned to the specific key range. To a pedal unit 20, a tone color of “bass drum” is assigned. Tone colors of “hi-hat” assigned to the keyboard 10 are controlled such that a depression of any key to which “hi-hat” is assigned with or without operation of the pedal unit 20 results in generation of a musical tone of open hi-hat or closed hi-hat.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: February 1, 2011
    Assignee: Yamaha Corporation
    Inventor: Kenichi Nishida
  • Patent number: 7732691
    Abstract: Improved methods and apparatus of producing vibrato on keyboard percussion/tone bar instruments such as the vibraphone and marimba are provided. Means are disclosed for real time control of the expressive qualities of both the speed and strength of the vibrato of such instruments, while eliminating the need for an electrical motor. According to certain embodiments, methods and apparatus are disclosed to easily produce a change of dynamic level (crescendo and diminuendo) after a single strike of a tone bar or chord.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: June 8, 2010
    Inventors: Leigh H. Stevens, Josef Eberl, Roger Clerc
  • Patent number: 7709726
    Abstract: A foot controlled effects knob controls a variable electronic component. A receptacle couples with a spindle of the variable electronic component. One or more wings extend from the receptacle to facilitate control of the spindle, and thus the variable electronic component, by a user's foot.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: May 4, 2010
    Inventor: Chad C. Smith
  • Patent number: 7608776
    Abstract: The invention allows for easy field-customization of floor controllers using techniques that are similar to those applicable to the easy creation of aggregated instruments. The invention further facilitates entirely new manufacturing, marketing, and sales paradigms permitting a broad range of open industry development and commerce, thus making an individual musician's creation of new floor controller arrangements an economically viable sector for both mass manufacturing and the niche cottage industry. New opportunities are provided for the creation of multiple-vendor standardizations, multiple-vendor manufacturing, multiple-vendor competitive features, etc. while offering the music equipment user and music industry as a whole, access to an extensive range of customization and diversification. The principles of the invention thus create a rich environment for floor controllers, their users, their features, their application, and the floor controller market.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: October 27, 2009
    Inventor: Lester F. Ludwig
  • Publication number: 20080173164
    Abstract: A circuit for an electric guitar utilizes a transformer and balanced amplifier to facilitate the production of a variety of sound adjustment circuits.
    Type: Application
    Filed: January 18, 2007
    Publication date: July 24, 2008
    Inventors: Otis M. Francis, Bradley D. Tluczek
  • Patent number: 6965070
    Abstract: An upright keyboard instrument comprises a prescribed number of keys that are interlocked with actions, hammer assemblies, and a plate spring unit, which is interlocked with a loud pedal. When the key is depressed, the action is activated to drive the hammer assembly, thus producing a musical tone. Each of plate springs is normally arranged close to an end portion of a whippen included in the action. Upon depression of the key, the end portion of the whippen comes in contact with the plate spring to cause a resistive force, which is transmitted back to a player's finger depressing the key. When the loud pedal is depressed, the plate spring departs from the end portion of the whippen, which becomes free to rotate upon depression of the key, thus realizing loudness effect on sound.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: November 15, 2005
    Assignee: Yamaha Corporation
    Inventor: Pu Wenjun
  • Patent number: 6777606
    Abstract: In an electronic musical instrument, a key operation detecting section detects a key operation on a keyboard, and the hand key operation contains a key pushing operation and a key releasing operation. A control unit detects a chord of a chord part in response to the key pushing operation and the key releasing operation. Then, the control unit generates chord control data for a re-trigger operation based on the detected chord of the chord part, when the key operation is the key pushing operation. A sound generating section generates a new accompaniment sound based on the chord control data and automatic accompaniment data stored in a memory section in the re-trigger operation.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: August 17, 2004
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventor: Yoshifumi Kira
  • Patent number: 6762357
    Abstract: Resonance is realized at a desired plurality of tone pitches even after the musical tone signals of a plurality of channels have been synthesized; synthesized musical tone signals are successively delayed, the musical tone signals that are successively delayed are weighted, synthesized and output; the delayed, weighted, synthesized and outputted musical tone signals are fed back, and a series of successive delays, weights, synthesizes and outputs by the feed back are repeated and thus resonance characteristics is imparted; the amount of weighting the musical tone signals successively delayed is determined based upon a relationship among the delay feedback period, the period of sampling the generated musical tone signals and the tone pitch period of the resonance sound imparted with resonance characteristics, and a frequency of the resonance characteristics are determined; Therefore, the resonance characteristics are added at a desired tone pitch after the plurality of musical tone signals are synthesized into
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: July 13, 2004
    Assignee: Kawai Musical Instruments Mfg. Co., Ltd.
    Inventors: Yutaka Washiyama, Seiji Okamoto
  • Patent number: 6689947
    Abstract: A floor controller for real-time control of signal processors, synthesizers, musical instruments, MIDI processors, lighting, video, and special effects in performance, recording, and composition enviroments. Various combinations of physical controllers may be utilized (including foot switches, rocking foot pedals, null/contact touch-pads, pressure sensor arrays, etc.), as well as visual displays and internal control processing. Each physical controller may include a separate visual display of assigned name, status, and/or value. Rocking foot pedals may be used to simultaneously control multiple parameters by inclusion of aditional sensors. Each physical controller may be assigned specific control message functions, values, names, temporal event sequences, and invocation rules dicated by assignable state-machines. Assignments may be selected from organized structures via the physical controller elements.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: February 10, 2004
    Inventor: Lester Frank Ludwig
  • Patent number: 6605769
    Abstract: A portable device is used for recording, editing, and replaying musical sounds generated by a musical instrument external to the device. The musical sounds are converted from analog to digital format, compressed for minimum storage usage, and stored in a digital storage medium. The stored signals are filed according to an indexing scheme that allows selection and retrieval of selected portions of the musical sounds. The selected portions are retrieved from storage, decompressed, converted back to analog signals, and output to a sound generating device. The operation of the device is controlled by application software and operating system software.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: August 12, 2003
    Assignee: Gibson Guitar Corp.
    Inventor: Henry E. Juszkiewicz
  • Patent number: 6380475
    Abstract: A chord detection apparatus for an electronic musical instrument has a hand keyboard for hand operation, a foot keyboard for foot operation, a hand-keyboard detection unit for detecting a temporary hand-keyboard chord root and a temporary hand-keyboard chord type in accordance with operation of the hand keyboard, a foot-keyboard detection unit for detecting a temporary foot-keyboard bass root in accordance with operation of the foot keyboard, and a determination unit for determining a true chord root and a true chord type, and the presence/absence of a bass root in accordance with the temporary hand-keyboard chord root, the temporary hand-keyboard chord type, and the temporary foot-keyboard bass root.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: April 30, 2002
    Assignee: Kabushiki Kaisha Kawi Gakki Seisakusho
    Inventor: Yoshifumi Kira
  • Patent number: 6201173
    Abstract: An arrangement for enabling facile and efficient operation of at least one bass drum mallet, in combination with at least one bass drum, such that the bass drum with its associated mallet can be placed in any desired location, within and beyond, a limited Critical Performance Area which is encountered with conventional drumming equipment, and such that the mallet is operable by means of at least one foot pedal, placed close to, or remote from, the location of the mallet/bass drum assembly. The arrangement offers considerable flexibility in the location of bass drums and other drum/musical instruments, and equipment, and can be operated by means of wire, wireless, or direct mechanical, communication between the foot pedal and the bass drum mallet.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: March 13, 2001
    Inventor: Jet Black
  • Patent number: 5981862
    Abstract: A guitar effects pedal system is provided including a base and a pair of ports mounted on the base for receiving an input cord to a guitar and an output core to an amplifier, respectively. An actuation pedal is situated on the pedal for actuating the system. Next provided is a control mechanism mounted on a top of the base for being easily manipulated by a foot of a user for altering a guitar signal passing from the input cord to the output cord.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: November 9, 1999
    Inventor: William H. Geier, Jr.
  • Patent number: 5886279
    Abstract: A switch mechanism of a piano with a built-in electronic musical instrument, which eliminates the disposition of switches on the surface of a piano to improve the appearance of the piano. An upright piano(1) includes a hammering mechanism(7) which strikes strings in accordance with the operation of a keyboard(3), and thus it serves as an acoustic piano as well as an electronic piano because it has a built-in electronic sound source(9) controlled by the operation of the same keyboard(3). This upright piano(1) includes an inhibition mechanism(13) for inactivating the hammering mechanism(7) in electronic mode, a pedal mechanism(17) having a muffler pedal(16), a control portion(19) driven by a power supply(18) for controlling the electronic sound source in accordance with the operation of the keyboard(3) to produce sounds, and a power supply switch(21) turned ON/OFF by the actuation of the muffler pedal(16) to make and break the electrical connection between the power supply(18) and the control portion(19).
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: March 23, 1999
    Assignee: Kabushiki Kaisha Kawai Gakki Seisakusho
    Inventor: Tatsuya Inaba
  • Patent number: 5803835
    Abstract: A game kit including a pliable hop scotch mat, an electrical actuated sound producing component and a plurality of individual electrical switches disposed between layers of the mat and adapted to be individually closed by pressure from a game participant when stepping on each of the designated areas on the game mat. The individual switches are positioned on each of the designated step or hop locations on the game mat. A battery power supply and speaker(s) are provided in a control unit housing the sound producing component and are in electrical connection with circuity leading from each of the individual pressure switches. The produced sound may be ringing of a bell, an individual music note, or a sequence of notes collectively playing a musical tune.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: September 8, 1998
    Inventors: James M. Moton, Shelia H. Moton, Gia T. Moton
  • Patent number: 5741995
    Abstract: In order to give piano-like key touch to a player in an electronically sound producing mode, a keyboard incorporated in a musical instrument is linked with key action mechanisms associated with hammer mechanisms, and a stopper blocks the hammer shanks before the hammers strike the strings so that noises are not mixed with synthesized tones.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: April 21, 1998
    Assignee: Yamaha Corporation
    Inventors: Kiyoshi Kawamura, Shinya Koseki, Nobuo Sugiyama, Masahiro Wada
  • Patent number: 5726374
    Abstract: A polyphonic electronic musical instrument is provided wherein a keyboard is used to trigger arpeggiated chords which emulate a strumming guitar sound. Select keys are provided for selecting which notes are included in chords to be strummed. At least one triggering device is also provided for triggering chords. The triggering device is constructed to alternate between two trigger states. The triggering device may be a keyboard key, foot pedal, or other device. The instrument operates in such a fashion that two arpeggiated chords of alternating direction (ascending and descending) may be produced during, and at least partially as a result of, one triggering device cycle from one state to the other and back again.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: March 10, 1998
    Inventor: Paul B. Vandervoort
  • Patent number: 5659145
    Abstract: A foot-operated signal controlling pedal with a series of LED's integrated in the pedal housing to indicate signal level. The pedal may perform one or more of a variety of sound effect functions with any of the common circuits in use currently, with a parallel but separate circuit controlling the LED display. The invention is of the typical rocker pedal design with a linkage joining the foot pedal to variable resistors which control the LED's and the audio signal in a parallel and simultaneous fashion.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: August 19, 1997
    Inventor: Robert P. Weil
  • Patent number: 5550321
    Abstract: A foot operated electronic musical instrument with a plurality of foot actuated pedals, which correspond to the notes produced by a bass guitar. Depressing a particular pedal causes an electronic tone generator to produce a corresponding note. Pedals are generally provided only for natural notes, with the exception of A# and D#. In order to obtain the full chromatic scale, a flat switch is included. When engaged by the foot this switch has the effect of lowering the value of the note by one half step, hence adding a flat, or a sharp with respect to the next lower note.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: August 27, 1996
    Inventor: William A. Brann
  • Patent number: 5391830
    Abstract: A foot pedal control system incorporated in an electrical musical keyboard instrument is expected to decide an output signal of a foot control pedal unit to be either analog or digital signal on the basis of a series of discrete voltage levels through periodical sampling on the output signal, and a microcomputer system of the foot pedal control system executes a program sequence for periodically monitoring the discrete voltage level, deciding the digital signal to be either analog or digital signal and determining an instruction of a player represented by the output signal.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: February 21, 1995
    Assignee: Yamaha Corporation
    Inventors: Toshihiro Nishino, Rei Furukawa, Takashi Tamaki
  • Patent number: 5350883
    Abstract: An electronic piano with a pedal, which can control various parameters by the pedal. The electronic piano has a mode switch for selecting a mode, and the electoronic piano switches parameters to be controlled by the pedal according to the selected mode by the mode switch. The pedal can provide not one but a variety of parameter control functions. Further, an electronic piano with first and second pedals, wherein a relationship between the up/down operation of the first pedal and an increase/decrease in parameter to be controlled is set to be opposite to a relationship between the up/down operation of the second pedal and the increase/decrease in parameter to be controlled.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: September 27, 1994
    Assignee: Yamaha Corporation
    Inventors: Minoru Kitamura, Makoto Iwabayashi
  • Patent number: 5166467
    Abstract: A chord-generating synthesizer system including an electronic keyboard instrument and a remote control unit operable by a musician's foot--while the musician is using both hands to simultaneously play an instrument such as a guitar. The keyboard instrument is formed with circuit electronics for generating polyphonic music, and has internal wiring that provides a plurality of normally open circuit loops. Each circuit loop includes a pair of connector output terminals for closure of the loop. The circuit electronics is responsive to closure of the loops for generating a note or chord. The remote control unit is separate and external from the instrument, but is selectively connected to the instrument by a multi-lead cable; the unit includes multiple connector inputs and a plurality of switches. Each switch is wired between at least a pair of the connector inputs for remote control of the chord-generating function of the keyboard instrument.
    Type: Grant
    Filed: May 17, 1991
    Date of Patent: November 24, 1992
    Inventor: Tommy M. Brown
  • Patent number: 5028776
    Abstract: A high hat cymbals device is automatically actuated to hold the cymbals locked in place. The presence or absence of the drummer's foot on or above the foot pedal for actuating the high hat is sensed, and the cymbals held together if the drummer's foot is not sensed. Sensing is accomplished utilizing an infrared LED or other source of light, preferably one that is pulsed and frequency modulated, and a photodiode or other light sensing device. The signal from the photodiode is filtered and amplified and ultimately operates a solenoid to either allow normal operation of the high hat, or move the high hat cymbals together. The light source and sensor are mounted on the bottom of the foot pedal and cooperate with an opening in the foot pedal so that the light is reflected to the photodiode if the drummer's foot is present on or above the foot pedal, but passes through the opening if it is not.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: July 2, 1991
    Assignee: Steven Forti
    Inventors: Steven Forti, William B. Lee
  • Patent number: 5022305
    Abstract: 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 output impedance and circuit headroom while providing good control over the harmonic content and sustain.
    Type: Grant
    Filed: April 20, 1989
    Date of Patent: June 11, 1991
    Inventor: Brent K. Butler