# US 6,723,908 B2 · Pick guard with electronic control housing and interface for acoustic guitar

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- Number: US 6,723,908 B2
- Document ID: US6723908B2
- Status: Granted
- Kind: B2
- Application number: 10/188,540
- Filed: 2002-07-03
- Published: 2004-01-08
- Granted: 2004-04-20
- Earliest claimed: 2002-07-03
- Assignees: Fender Musical Instruments Corporation
- Inventors: Keith Lance Chapman; Charles Clifford Adams; Shawn Robert Greene
- Web page: https://patentgrep.com/patent/US6723908B2

## CPC

- G10D 1/085: {Mechanical design of electric guitars}
- 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)

## Abstract

A musical string instrument (12) has a body (21) with a resonate cavity covered by a soundboard (22). A pick guard (34) has a flat surface for mounting to the soundboard of the instrument. Electronic control components (36) are mounted within a housing of the pick guard. The musician can control a preamplifier within the resonate cavity of the body with knobs (58) and push buttons (60) located on the pick guard. A thin, flat, multi-conductor ribbon cable (38) is connected to the electronic control components and routed along a surface of the soundboard and through a sound hole (24) in the soundboard into the resonate cavity of the body. The ribbon cable entering the resonating cavity through the sound hole does not adversely effect the natural response, performance, sound quality, and tonal property of the string instrument and does not require any additional holes be drilled in the soundboard.

## Claims

### Claim 1

A musical instrument, comprising:
a body including a resonate cavity covered by a soundboard, the soundboard having an opening across which a plurality of strings of the musical instrument are strung;
a pick guard having a surface mounted to the body;
a housing formed within the pick guard;
an electronic component mounted within the housing of the pick guard; and
a cable coupled to the electronic component and routed alone a surface of the soundboard and through the opening in the soundboard across which the plurality of strings are strung into the resonate cavity of the body.

### Claim 2 (depends on 1)

The musical instrument of claim 1, wherein the pick guard includes:
a striking region; and
a raised region integral with and ramping up from the striking region to form the housing.

### Claim 3 (depends on 2)

The musical instrument of claim 2, wherein the pick guard includes a knob mounted to the raised region.

### Claim 4 (depends on 1)

The musical instrument of claim 1, wherein the pick guard includes a push button disposed within the housing.

### Claim 5 (depends on 1)

The musical instrument of claim 1, wherein the pick guard includes a printed circuit board disposed within the housing.

### Claim 6 (depends on 1)

The musical instrument of claim 1, wherein the electronic component includes a potentiometer.

### Claim 7 (depends on 1)

The musical instrument of claim 1, wherein the cable includes a multi-conductor ribbon cable coupled to the electronic component.

### Claim 8 (depends on 7)

The musical instrument of claim 7, wherein the multi-conductor ribbon cable is mounted flush to the soundboard and bent around a lip of the opening of the soundboard to enter the resonate cavity of the body.

### Claim 9 (depends on 1)

The musical instrument of claim 1, wherein the musical instrument is an acoustic guitar.

### Claim 10

An acoustic guitar, comprising:
a body including a resonate cavity covered by a soundboard;
a pick guard having a first surface mounted to the body and a second surface, wherein a portion of the second surface is offset from the first surface to form a cavity between the first and second surfaces of the pick guard; and
an electronic component mounted inside the cavity of the pick guard.

### Claim 11 (depends on 10)

The acoustic guitar of claim 10, further including:
an opening in the soundboard cross which a plurality of strings of the acoustic guitar are strung; and
a cable coupled to the electronic component and routed along a surface of the soundboard and through the opening in the soundboard into the resonate cavity of the body.

### Claim 12 (depends on 11)

The acoustic guitar of claim 11, wherein the pick guard includes:
a striking region; and
a raised region integral with and ramping up from the striking region to form the cavity of the pick guard.

### Claim 13 (depends on 12)

The acoustic guitar of claim 12, wherein the pick guard includes a knob mounted to the raised region.

### Claim 14 (depends on 10)

The acoustic guitar of claim 10, wherein the cable includes a multi-conductor ribbon cable coupled to the electronic component and mounted flush to the soundboard and bent around a lip of the opening of the soundboard to enter the resonate cavity of the body.

### Claim 15

A pick guard for a musical instrument having a surface with a sound hole into a resonate cavity, the pick guard comprising:
a first surface adapted for mounting to the musical instrument;
a second surface having a striking region and a raised region integral with and ramping up from the striking region;
a housing formed between the first surface and the raised region of the second surface; and
an electronic component mounted within the housing.

### Claim 16 (depends on 15)

The pick guard of claim 15, further including a ribbon cable coupled to the electronic component and adapted for routing along the surface of the musical instrument through the sound hole and into the resonate cavity of the musical instrument.

### Claim 17 (depends on 15)

The pick guard of claim 15, wherein the pick guard includes a knob mounted to the raised region.

### Claim 18 (depends on 15)

The pick guard of claim 15, wherein the pick guard includes a push button disposed within the housing.

### Claim 19 (depends on 15)

The pick guard of claim 15, wherein the pick guard includes a printed circuit board disposed within the housing.

### Claim 20 (depends on 15)

The pick guard of claim 15, wherein the electronic component includes a potentiometer.

### Claim 21

An apparatus, comprising:
a body having a resonate cavity and an opening into the resonate cavity;
a protective guard having a surface mounted to the body;
a housing formed within the protective guard;
an electronic component mounted within the housing of the protective guard; and
a conductor coupled to the electronic component and routed along a surface of the body and through the opening into the resonate cavity of the body.

### Claim 22 (depends on 21)

The apparatus of claim 21, wherein the protective guard includes:
a striking region; and
a raised region ramping up from the striking region to form the housing.

### Claim 23 (depends on 22)

The apparatus of claim 22, wherein the protective guard includes a knob mounted to the raised region.

### Claim 24 (depends on 21)

The apparatus of claim 21, wherein the conductor includes a multi-conductor ribbon cable coupled to the electronic component and mounted flush to the surface of the body and bent around a lip of the opening to enter the resonate cavity of the body.

### Claim 25

A method of protecting a surface of a musical instrument, comprising:
mounting a protective guard having a surface to a soundboard;
providing a housing within the protective guard;
mounting an electronic component within the housing of the protective guard;
connecting a cable to the electronic component; and
routing the cable along a surface of the soundboard and around a lip of an opening in the soundboard into a resonate cavity of the musical instrument.

### Claim 26 (depends on 25)

The method of claim 25 further including the steps of:
providing a striking region on the protective guard; and
providing a raised region integral with and ramping up from the striking region to form the housing of the protective guard.

### Claim 27 (depends on 26)

The method of claim 26 further including providing a knob mounted to the raised region.

### Claim 28 (depends on 25)

The method of claim 25, wherein the cable includes a multi-conductor ribbon cable coupled to the electronic component.

### Claim 29 (depends on 25)

The method of claim 25, wherein the musical instrument is an acoustic guitar.
