US3453920A - Piezo guitar bridge pickup - Google Patents

Piezo guitar bridge pickup Download PDF

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Publication number
US3453920A
US3453920A US561486A US3453920DA US3453920A US 3453920 A US3453920 A US 3453920A US 561486 A US561486 A US 561486A US 3453920D A US3453920D A US 3453920DA US 3453920 A US3453920 A US 3453920A
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Prior art keywords
string
crystals
guitar
piezoelectric
vibrations
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Expired - Lifetime
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US561486A
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Robert C Scherer
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Fred W Gretsch Enterprises Ltd
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DH Baldwin Co
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Assigned to GRETSCH COMPANY THE, A CORP OF TN. reassignment GRETSCH COMPANY THE, A CORP OF TN. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: D.H. BALDWIN COMPANY
Assigned to FRED W. GRETSCH ENTERPRISES, LTD. reassignment FRED W. GRETSCH ENTERPRISES, LTD. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GRETSCH COMPANY THE
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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00—Instruments in which the tones are generated by electromechanical means
    • G10H3/12—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/14—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means
    • G10H3/18—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar
    • G10H3/185—Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument using mechanically actuated vibrators with pick-up means using a string, e.g. electric guitar in which the tones are picked up through the bridge structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
    • G10H2220/465—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument
    • G10H2220/471—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument at bottom, i.e. transducer positioned at the bottom of the bridge, between the bridge and the body of the instrument
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
    • G10H2220/465—Bridge-positioned, i.e. assembled to or attached with the bridge of a stringed musical instrument
    • G10H2220/491—Two or more transducers per string, e.g. 8 transducers on a 4-string violin bridge
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/461—Transducers, i.e. details, positioning or use of assemblies to detect and convert mechanical vibrations or mechanical strains into an electrical signal, e.g. audio, trigger or control signal
    • G10H2220/525—Piezoelectric transducers for vibration sensing or vibration excitation in the audio range; Piezoelectric strain sensing, e.g. as key velocity sensor; Piezoelectric actuators, e.g. key actuation in response to a control voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S84/00—Music
    • Y10S84/24—Piezoelectrical transducers

Definitions

  • the present invention relates generally to mechanicoelectrical tranducers for stringed instruments and more particularly to piezoelectric transducers capable of providing response to vibrational components in one plane, to the exclusion of vibrational components in a plane orthogonal to the one plane.
  • Microphonics, in guitars, are due to noise-like vibrations of the guitar body. These may occur due to handling of the body, finger movements, and the like. Such vibrations are transmitted from the body of the guitar to the transducers, primarily via the bridge of the guitar, and are largely vertical. Finger noise is noise due to movements of the fingers along the strings. Such movements appear to cause largely vertitical string vibrations. Accordingly, by providing a string transducer which responds only, or primarily to horizontal string vibrations, not only do we obtain accentuation of the sounds of the plectrum in actuating the strings, but at the same time there occurs a reduction of microphonics and string noise.
  • FIGURE 1 is a view in transverse section through a bridge and transducer arranged in accordance with the invention
  • FIGURE 2 is a view in transverse section of a portion of the transducer system of FIGURE 1, including one vibratory element;
  • FIGURE 3 is a view in transverse section, according to FIGURE 2, but showing interconnections of two piezoelectric transducer elements, which result in zero electrical response to the horizontal vibratory mode;
  • FIGURE 4 is a view in transverse section of a modification of the system of FIGURE 3, showing interconnections of transducer elements which result in zero response to the vertical vibratorymode;
  • FIGURE 5 is a view' of a modification of the system of FIGURE 3 employing a zero angle between the piezoelectric transducers.
  • FIG- URE l 10 represents a portion of the body of a stringed musical instrument, specifically a guitar.
  • a base plate 11 for supporting the usual bridge 12, of the instrument.
  • the bridge 12 includes at its upper edge, V notches as 13, 14 for each string, as 15, 16.
  • the crystals 18, 19 are each laid on a different side of the notch, symmetrically thereof, and the interposer 17 rests on the crystals 18, 19 and supports string 13 centrally of its upper surface.
  • the vibrations of string 15 are transmitted to the body portion 10 of the guitar, in the usual fashion except for the interposition of the transducer system.
  • the angle a, FIGURE 2 which exists between the horizontal plane and a side 20 of the interposer can have a wide range of values, i.e.,from zero degrees to an angle approaching
  • Piezoelectric crystals possess polarity i.e., indentical crystals provide output voltage of one sign for a positive increment of compressionand of the opposite sign for a negative increment of compression, for one orientation of the crystal, which are reversed if the crystal is turned over, i.e., one plate of the crystal is positive going and the other negtaive going in response to compression.
  • the crystals are identically oriented, for example, with their positive faces in contact with interposer 17, and positive electrodes are interconnected by lead 22, and negative electrodes by lead 23.
  • Vertical movement of interposer 17 then generates cophasal outputs from the crystals.
  • the outputs of the crystals 18, 19, being one in compression and one in decompression are out of phase and equal in amplitude, and therefore cancel.
  • one, 19, of the crystals 18, 19 has its negative electrode, i.e., that electrode which responds with production of negative voltage to compressive force, ad jacent to interposer 17, while the other, 18, has its positive electrode adjacent to interposer 17.
  • the latter is the configuration usually desired in guitar trans" ducers.
  • a mechanico-electric transducer for a vibrating string comprising:
  • a support for said string saidsupport permitting vibration of said string in at least two orthogonal modes, a first piezoelectric crystal underlying said support, a second piezoelectric crystal underlying said support,
  • said support having a flat surface contacting said piezoelectric crystals
  • said string is arranged to compress said support against said piezoelectric crystals and to apply torque to said support during vibration of said string in a direction parallel to said common plane.

Description

iii- 649 cm yum.) [\LI'LHLNML. "Wm
y 3, 1959 R. c. SCHERER 3,453,920
7 PIEZO GUITAR BRIDGE PICKUP Filed June 29, 1966 VERT. STRING VIBRATION HORIZ. STRING VIBR.
INVENTOR ROBERT C. SCHERER WW A2,?
l I W 1 v H ATTORNEY 5 United States Patent 3,453,920 PIEZO GUITAR BRIDGE PICKUP Robert C. Scherer, Cincinnati, Ohio, assignor to D. H. Baldwin Company, Cincinnati, Ohio, a corporation of Ohi Filed June 29, 1966, Ser. No. 561,486 Int. Cl. (310d 1/08, 3/00 US. Cl. 84-416 4 Claims ABSTRACT OF THE DISCLOSURE The present invention relates generally to mechanicoelectrical tranducers for stringed instruments and more particularly to piezoelectric transducers capable of providing response to vibrational components in one plane, to the exclusion of vibrational components in a plane orthogonal to the one plane.
The problem exists, in transducing the vibrations of a string, and particularly of a picked or plucked string, that while the steady state vibration of the String subsists in a preferred plane, the initial transient vibration, occurring on picking or plucking, involves a complex vibration in three dimensions. In some types of guitar playing, it is desired to accentuate the sound of the plectrum as it actuates the stirng of the guitar. I have found that this objective can be accomplished by accentuating response of string transducers to horizontal vibrations of the string. At the same time certain types of noise, and microphonics, can be eliminated from the transducer outputs if responses due to vertical string vibrations are reduced, or responses due to horizontal vibrations relatively increased. Microphonics, in guitars, are due to noise-like vibrations of the guitar body. These may occur due to handling of the body, finger movements, and the like. Such vibrations are transmitted from the body of the guitar to the transducers, primarily via the bridge of the guitar, and are largely vertical. Finger noise is noise due to movements of the fingers along the strings. Such movements appear to cause largely vertitical string vibrations. Accordingly, by providing a string transducer which responds only, or primarily to horizontal string vibrations, not only do we obtain accentuation of the sounds of the plectrum in actuating the strings, but at the same time there occurs a reduction of microphonics and string noise.
It is, accordingly, a broad object of the invention to provide a novel piezoelectric mechanico-electric transducer for the string vibrations of stringed instruments, which shall be selective of one mode of vibration to the exclusion of others.
It is a more specific object of the invention to provide a mechanico-electrical transducer system employing two piezoelectric crystals mounted at an angle to each other under a vibrating element, such that vibratory modes of the vibratory element in a horizontal plane are additive while vibratory modes in the vertical plane are subtractive, or vice versa, in respect to the electrical responses of the crystals.
The above and still further objects, features and advantages of the present invention will become apparent upon consideration of the following detailed description of one specific embodiment thereof, especially when taken in conjunction with the accompanying drawings, wherein:
FIGURE 1 is a view in transverse section through a bridge and transducer arranged in accordance with the invention;
ice
FIGURE 2 is a view in transverse section of a portion of the transducer system of FIGURE 1, including one vibratory element;
FIGURE 3 is a view in transverse section, according to FIGURE 2, but showing interconnections of two piezoelectric transducer elements, which result in zero electrical response to the horizontal vibratory mode;
FIGURE 4 is a view in transverse section of a modification of the system of FIGURE 3, showing interconnections of transducer elements which result in zero response to the vertical vibratorymode; and
FIGURE 5 is a view' of a modification of the system of FIGURE 3 employing a zero angle between the piezoelectric transducers.
Referring now to the accompanying drawings, in FIG- URE l, 10 represents a portion of the body of a stringed musical instrument, specifically a guitar. On the body portion 10 rests a base plate 11 for supporting the usual bridge 12, of the instrument. The bridge 12 includes at its upper edge, V notches as 13, 14 for each string, as 15, 16. Interposed between each string and notch, considering string 15 as exemplary, is an interposer of triangular cross section, 17, conforming in shape geometrically to the notch 13, and a pair of piezoeleg'tric crystals 18, 19 having the usual electrodes and responsive in the thickness mode. The crystals 18, 19 are each laid on a different side of the notch, symmetrically thereof, and the interposer 17 rests on the crystals 18, 19 and supports string 13 centrally of its upper surface.
The vibrations of string 15 are transmitted to the body portion 10 of the guitar, in the usual fashion except for the interposition of the transducer system.
The angle a, FIGURE 2, which exists between the horizontal plane and a side 20 of the interposer can have a wide range of values, i.e.,from zero degrees to an angle approaching However, the amplitude of response of the piezoelectric crystals, for either mode of vibration, is a function of a, vertical and horizontal modes providing equal response for a=45.
Piezoelectric crystals possess polarity, i.e., indentical crystals provide output voltage of one sign for a positive increment of compressionand of the opposite sign for a negative increment of compression, for one orientation of the crystal, which are reversed if the crystal is turned over, i.e., one plate of the crystal is positive going and the other negtaive going in response to compression.
If it is desired to suppress horizontal mode responses, as in FIGURE 3, the crystals are identically oriented, for example, with their positive faces in contact with interposer 17, and positive electrodes are interconnected by lead 22, and negative electrodes by lead 23. Vertical movement of interposer 17 then generates cophasal outputs from the crystals. For horizontal vibrations of interposer 17, the outputs of the crystals 18, 19, being one in compression and one in decompression, are out of phase and equal in amplitude, and therefore cancel.
In FIGURE 4, one, 19, of the crystals 18, 19 has its negative electrode, i.e., that electrode which responds with production of negative voltage to compressive force, ad jacent to interposer 17, while the other, 18, has its positive electrode adjacent to interposer 17. Thereby, the voltages generated by the crystals 18 and 19 are out of phase by for compression, and the connections previously recited for the embodiment of FIGURE 3 pro= vide zero response for vertical vibrations of interposer 17 and maximum response for horizontal vibrations. The latter is the configuration usually desired in guitar trans" ducers.
In the limit one may use a value of 11:0, as in FIG- URE 5. In such case a pair, 18, 19, of piezoelectric crystals, having oppositely poled electrodes rest on base 11..
trated and descrlbed may be resorted to without departing from the true spirit and scope of the invention as defined inthe appended claims. What is claimed is: 1. A mechanico-electric transducer for a vibrating string, comprising:
a support for said string, saidsupport permitting vibration of said string in at least two orthogonal modes, a first piezoelectric crystal underlying said support, a second piezoelectric crystal underlying said support,
and means connecting said piezoelectric crystals to provide substantially zero joint piezoelectric response to vi= bration of said string in one of said modes and a relatively large joint response to vibration of said string in the other of said modes. 2. The combination according to claim 1 wherein said 4 support is wedge-shaped, having two surfaces terminating in a common line, said piezoelectric crystals underlying said surfaces, said string overlying said common line on said support.
3. The combination according to claim 2 wherein said surfaces make an angle of approximately to each other.
4. The combination according to claim 1 wherein said piezoelectric crystals occupy a substantially common plane under said support,
said support having a flat surface contacting said piezoelectric crystals, and
wherein said string is arranged to compress said support against said piezoelectric crystals and to apply torque to said support during vibration of said string in a direction parallel to said common plane.
References Cited UNITED STATES PATENTS 3,137,754 6/1964 Evans 84-116 HERMAN KARL SAALBACH, Primary Examiner.
F, P. BUTLER, Assistant Examiner.
US. Cl. X.R., 7370
US561486A 1966-06-29 1966-06-29 Piezo guitar bridge pickup Expired - Lifetime US3453920A (en)

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Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624264A (en) * 1970-02-18 1971-11-30 Arnold Lazarus Method and apparatus for sound and vibration detection
US4292875A (en) * 1977-08-25 1981-10-06 Nourney Carl Ernst Strain-gauge sound pickup for string instrument
US4314495A (en) * 1979-11-08 1982-02-09 Baggs Lloyd R Piezoelectric saddle for musical instruments and method of making same
US4356754A (en) * 1980-10-20 1982-11-02 Fishman Lawrence R Musical instrument transducer
US4534258A (en) * 1983-10-03 1985-08-13 Anderson Norman J Transducing assembly responsive to string movement in intersecting planes
US4538498A (en) * 1982-10-28 1985-09-03 Marten Timothy J Improvements in and relating to an acoustic guitar bridge
WO1988008604A1 (en) * 1987-04-20 1988-11-03 Thomas Cipriani Increased torque bridge for guitars
US4860625A (en) * 1988-05-16 1989-08-29 The Board Of Trustees Of The Leland Stanford, Jr. University Bimorphic piezoelectric pickup device for stringed musical instruments
US4903566A (en) * 1988-02-23 1990-02-27 Mcclish Richard E D Composite pickup apparatus for stringed instruments
US4911054A (en) * 1988-04-20 1990-03-27 Mcclish Richard E D Noise-cancelling pickup for stringed instruments
US4951543A (en) * 1987-04-20 1990-08-28 Cipriani Thomas J Increased torque bridge for guitars
US5153363A (en) * 1989-05-15 1992-10-06 Fishman Lawrence R Stringed instrument piezoelectric transducer
US5206449A (en) * 1988-07-14 1993-04-27 Mcclish Richard E D Omniplanar pickup for musical instruments
US5347905A (en) * 1987-04-20 1994-09-20 Cipriani Thomas Adjustable bridge system for acoustical stringed instruments
US5877447A (en) * 1997-04-16 1999-03-02 Fender Musical Instruments Corporation Compensation circuit for piezoelectric pickup
US6075198A (en) * 1997-08-19 2000-06-13 Grant; W. Gerry Solid body instrument transducer
US6271457B1 (en) 2000-05-19 2001-08-07 Kaman Music Corporation Piezoelectric bridge-type pickup for a stringed musical instrument
US6392137B1 (en) 2000-04-27 2002-05-21 Gibson Guitar Corp. Polyphonic guitar pickup for sensing string vibrations in two mutually perpendicular planes
US6515214B2 (en) 2001-04-27 2003-02-04 Yamaha Corporation Pickup unit incorporated in stringed instrument for converting vibrations of string to electric signal in good fidelity
US6605771B1 (en) 2001-03-23 2003-08-12 Lloyd R. Baggs Pickup assembly for musical instrument
US20040103776A1 (en) * 1999-04-26 2004-06-03 Juszkiewicz Henry E. Digital guitar processing circuit
US20040144241A1 (en) * 1999-04-26 2004-07-29 Juskiewicz Henry E. Digital guitar system
US20040168566A1 (en) * 2003-01-09 2004-09-02 Juszkiewicz Henry E. Hexaphonic pickup for digital guitar system
US20040255762A1 (en) * 2003-06-19 2004-12-23 Yamaha Corporation Stringed musical instrument equipped with pickup embedded in bridge and bridge used therein
US20040261607A1 (en) * 2003-01-09 2004-12-30 Juszkiewicz Henry E. Breakout box for digital guitar
US20050257670A1 (en) * 2004-05-19 2005-11-24 Yamaha Corporation Pickup device for plucked string instrument and plucked string instrument
US20060011049A1 (en) * 2004-07-13 2006-01-19 Yamaha Corporation Stringed musical instrument equipped with sensors sensitive to vibration components and bridge with built-in sensors
US20070056435A1 (en) * 2005-09-09 2007-03-15 Juszkiewicz Henry E Angled pickup for digital guitar
US20100269671A1 (en) * 2009-04-22 2010-10-28 Randazzo Teddy C Triangular Mode Guitar Pickup
US20130160634A1 (en) * 2011-12-21 2013-06-27 Taylor-Listug, Inc. d/b/a/ Taylor Guitars Pickup assemblies, systems and methods for stringed instruments
US20170092249A1 (en) * 2014-05-19 2017-03-30 Skoogmusic Ltd Control apparatus
US9761212B2 (en) 2015-01-05 2017-09-12 Rare Earth Dynamics, Inc. Magnetically secured instrument trigger
US9875732B2 (en) 2015-01-05 2018-01-23 Stephen Suitor Handheld electronic musical percussion instrument
US10096309B2 (en) 2015-01-05 2018-10-09 Rare Earth Dynamics, Inc. Magnetically secured instrument trigger
US11335310B2 (en) 2018-06-18 2022-05-17 Rare Earth Dynamics, Inc. Instrument trigger and instrument trigger mounting systems and methods

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US3137754A (en) * 1961-10-12 1964-06-16 Atuk Corp Signal generating system

Patent Citations (1)

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US3137754A (en) * 1961-10-12 1964-06-16 Atuk Corp Signal generating system

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624264A (en) * 1970-02-18 1971-11-30 Arnold Lazarus Method and apparatus for sound and vibration detection
US4292875A (en) * 1977-08-25 1981-10-06 Nourney Carl Ernst Strain-gauge sound pickup for string instrument
US4314495A (en) * 1979-11-08 1982-02-09 Baggs Lloyd R Piezoelectric saddle for musical instruments and method of making same
US4356754A (en) * 1980-10-20 1982-11-02 Fishman Lawrence R Musical instrument transducer
US4538498A (en) * 1982-10-28 1985-09-03 Marten Timothy J Improvements in and relating to an acoustic guitar bridge
US4534258A (en) * 1983-10-03 1985-08-13 Anderson Norman J Transducing assembly responsive to string movement in intersecting planes
WO1988008604A1 (en) * 1987-04-20 1988-11-03 Thomas Cipriani Increased torque bridge for guitars
US4951543A (en) * 1987-04-20 1990-08-28 Cipriani Thomas J Increased torque bridge for guitars
US5347905A (en) * 1987-04-20 1994-09-20 Cipriani Thomas Adjustable bridge system for acoustical stringed instruments
US4903566A (en) * 1988-02-23 1990-02-27 Mcclish Richard E D Composite pickup apparatus for stringed instruments
US4911054A (en) * 1988-04-20 1990-03-27 Mcclish Richard E D Noise-cancelling pickup for stringed instruments
US4860625A (en) * 1988-05-16 1989-08-29 The Board Of Trustees Of The Leland Stanford, Jr. University Bimorphic piezoelectric pickup device for stringed musical instruments
US5206449A (en) * 1988-07-14 1993-04-27 Mcclish Richard E D Omniplanar pickup for musical instruments
US5153363A (en) * 1989-05-15 1992-10-06 Fishman Lawrence R Stringed instrument piezoelectric transducer
US5877447A (en) * 1997-04-16 1999-03-02 Fender Musical Instruments Corporation Compensation circuit for piezoelectric pickup
US6075198A (en) * 1997-08-19 2000-06-13 Grant; W. Gerry Solid body instrument transducer
US20080276794A1 (en) * 1999-04-26 2008-11-13 Juszkiewicz Henry E Digital guitar system
US20040103776A1 (en) * 1999-04-26 2004-06-03 Juszkiewicz Henry E. Digital guitar processing circuit
US20040144241A1 (en) * 1999-04-26 2004-07-29 Juskiewicz Henry E. Digital guitar system
US7952014B2 (en) 1999-04-26 2011-05-31 Gibson Guitar Corp. Digital guitar system
US20070089594A1 (en) * 1999-04-26 2007-04-26 Juszkiewicz Henry E Digital guitar system
US6888057B2 (en) 1999-04-26 2005-05-03 Gibson Guitar Corp. Digital guitar processing circuit
US7399918B2 (en) 1999-04-26 2008-07-15 Gibson Guitar Corp. Digital guitar system
US7220912B2 (en) 1999-04-26 2007-05-22 Gibson Guitar Corp. Digital guitar system
US6392137B1 (en) 2000-04-27 2002-05-21 Gibson Guitar Corp. Polyphonic guitar pickup for sensing string vibrations in two mutually perpendicular planes
EP1168295A1 (en) * 2000-05-19 2002-01-02 Kaman Music Corporation Piezoelectric bridge-type pickup for a stringed musical instrument
US6271457B1 (en) 2000-05-19 2001-08-07 Kaman Music Corporation Piezoelectric bridge-type pickup for a stringed musical instrument
US6605771B1 (en) 2001-03-23 2003-08-12 Lloyd R. Baggs Pickup assembly for musical instrument
US6515214B2 (en) 2001-04-27 2003-02-04 Yamaha Corporation Pickup unit incorporated in stringed instrument for converting vibrations of string to electric signal in good fidelity
US20040261607A1 (en) * 2003-01-09 2004-12-30 Juszkiewicz Henry E. Breakout box for digital guitar
US20040168566A1 (en) * 2003-01-09 2004-09-02 Juszkiewicz Henry E. Hexaphonic pickup for digital guitar system
US7220913B2 (en) 2003-01-09 2007-05-22 Gibson Guitar Corp. Breakout box for digital guitar
US7166794B2 (en) 2003-01-09 2007-01-23 Gibson Guitar Corp. Hexaphonic pickup for digital guitar system
US7138577B2 (en) * 2003-06-19 2006-11-21 Yamaha Corporation Stringed musical instrument equipped with pickup embedded in bridge and bridge used therein
US20040255762A1 (en) * 2003-06-19 2004-12-23 Yamaha Corporation Stringed musical instrument equipped with pickup embedded in bridge and bridge used therein
US7394015B2 (en) * 2004-05-19 2008-07-01 Yamaha Corporation Pickup device for plucked string instrument and plucked string instrument
US20050257670A1 (en) * 2004-05-19 2005-11-24 Yamaha Corporation Pickup device for plucked string instrument and plucked string instrument
US20060011049A1 (en) * 2004-07-13 2006-01-19 Yamaha Corporation Stringed musical instrument equipped with sensors sensitive to vibration components and bridge with built-in sensors
US7285713B2 (en) * 2004-07-13 2007-10-23 Yamaha Corporation Stringed musical instrument equipped with sensors sensitive to vibration components and bridge with built-in sensors
US20070056435A1 (en) * 2005-09-09 2007-03-15 Juszkiewicz Henry E Angled pickup for digital guitar
US7285714B2 (en) * 2005-09-09 2007-10-23 Gibson Guitar Corp. Pickup for digital guitar
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