# US 2014/0196594 A1 · Electric stringed musical instrument and method of designing the same

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- Number: US 2014/0196594 A1
- Document ID: US20140196594A1
- Status: Published application
- Kind: A1
- Application number: 14/154,818
- Filed: 2014-01-14
- Published: 2014-07-17
- Earliest claimed: 2013-01-15
- Assignees: Yamaha Corporation
- Applicants: Yamaha Corporation
- Inventors: YUICHIRO SUENAGA; Shinya Tamura; Masao Noro
- Web page: https://patentgrep.com/patent/US20140196594A1

## CPC

- G10H 3/18: using a string, e.g. electric guitar {(mechanical features G10D1/085)}
- G10D 3/02: Resonating means, horns or diaphragms
- G10H 3/14: using mechanically actuated vibrators with pick-up means (G10H3/24 takes precedence)
- G10H 3/181: {Details of pick-up assemblies}
- G10H 3/182: {using two or more pick-up means for each string}
- G10H 3/185: {in which the tones are picked up through the bridge structure}
- G10D 1/085: {Mechanical design of electric guitars}
- G10D 3/04: Bridges
- G10H 2220/471: at bottom, i.e. transducer positioned at the bottom of the bridge, between the bridge and the body of the instrument
- Y10T 29/42: Piezoelectric device making
- 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
- G10D: STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR (organs, harmoniums or similar wind musical instruments with associated blowing apparatus G10B; pianos, harpsichords, spinets or similar stringed musical instruments with one or more keyboards G10C; automatic musical instruments G10F; electrophonic musical instruments in which tones are generated by electromechanical means G10H)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

An electric stringed musical instrument includes: a string which vibrates by a performance operation; a body which supports the string via a bridge; a pickup sensor mounted on a portion which vibrates by a vibration of the string, the pickup sensor being configured to detect a vibration having propagated from the string and output an electric signal; a supporter having a spring structure which supports the bridge with respect to the body; and a damper mounted on a portion which vibrates by a vibration of the string, the damper being configured to damp a vibration of the bridge.

## Claims

### Claim 1

An electric stringed musical instrument comprising:
a string which vibrates by a performance operation;
a body which supports the string via a bridge;
a pickup sensor mounted on a portion which vibrates by a vibration of the string, the pickup sensor being configured to detect a vibration having propagated from the string and output an electric signal;
a supporter having a spring structure which supports the bridge with respect to the body; and
a damper mounted on a portion which vibrates by a vibration of the string, the damper being configured to damp a vibration of the bridge.

### Claim 2 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the damper is configured such that a mass of the damper is substantially equal to that of air around a sound hole of one acoustic stringed musical instrument, a spring constant of the damper is substantially equal to that of air in a body of the one acoustic stringed musical instrument, and a loss due to the damper is substantially equal to a loss caused by the air around the sound hole of the one acoustic stringed musical instrument.

### Claim 3 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the supporter is constituted by a plate spring whose one end or opposite ends are fixed to the body.

### Claim 4 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the supporter is constituted by an elastic member interposed between the body and the bridge.

### Claim 5 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the supporter is constituted by a thin plate that is formed integrally with the body in a state in which a space is formed between the supporter and the body.

### Claim 6 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the pickup sensor is provided on at least one of the bridge and the damper.

### Claim 7 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the damper is mounted on the supporter.

### Claim 8 (depends on 1)

The electric stringed musical instrument according to claim 1, wherein the damper is mounted on the bridge.

### Claim 9

A method of designing an electric stringed musical instrument comprising: a string which vibrates by a performance operation; a body which supports the string via a bridge; a pickup sensor mounted on a portion which vibrates by a vibration of the string, the pickup sensor being configured to detect a vibration having propagated from the string and output an electric signal; a supporter having a spring structure which supports the bridge with respect to the body; and a damper mounted on a portion which vibrates by a vibration of the string, the damper being configured to damp a vibration of the bridge, the method comprising designing a mass of components around the bridge, a spring constant of the supporter, losses due to the bridge and the supporter, a mass of the damper, a spring constant of the damper, and a loss due to the damper such that two peaks appear in vibration characteristics of the electric stringed musical instrument, wherein the two peaks respectively correspond to two peaks appearing in vibration characteristics of an acoustic stringed musical instrument.

### Claim 10 (depends on 9)

The method of designing the electric stringed musical instrument, according to claim 9, wherein the two peaks respectively correspond to two peaks appearing due to (i) a top board of the acoustic stringed musical instrument and (ii) air around a sound hole of the acoustic stringed musical instrument and in a resonance body of the acoustic stringed musical instrument.
