ELECTROSTATIC INTERFERENCE SHIELD FOR MUSICAL INSTRUMENT PICKUPS
First Claim
1. A musical instrument pickup with an electrostatic interference (ESI) shield to substantially reduce audible ESI noise in an audio output signal of the pickup to be sent to an audio amplifier, the musical instrument pickup comprising:
- a electrostatically sensitive surface;
a carbon coating shielding the electrostatically sensitive surface; and
a ground conductor electrically connected to the carbon coating to carry a reference potential of the audio amplifier to the carbon coating.
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Accused Products
Abstract
A musical instrument pickup with electrostatic interference (ESI) shield that reduces audible ESI noise in an audio output signal sent to an audio amplifier. The pickup includes an electrostatically sensitive surface, a carbon coating shielding the surface, and a ground conductor electrically connected to the carbon coating to carry a reference potential of the amplifier to the carbon coating. The carbon coating can include a conductive metal component. The coated surface can be a pickup cover, base, bobbin, or other component. The audio amplifier can include an input terminal and a ground terminal having the reference potential, and the pickup can include an electrical connection carrying the pickup audio output signal to the amplifier input terminal, and another electrical connection carrying the reference potential from the amplifier ground terminal to the pickup ground conductor.
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Citations
29 Claims
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1. A musical instrument pickup with an electrostatic interference (ESI) shield to substantially reduce audible ESI noise in an audio output signal of the pickup to be sent to an audio amplifier, the musical instrument pickup comprising:
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a electrostatically sensitive surface; a carbon coating shielding the electrostatically sensitive surface; and a ground conductor electrically connected to the carbon coating to carry a reference potential of the audio amplifier to the carbon coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A musical instrument pickup comprising:
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a coil of wire for producing an audio output signal, a pole piece inside the coil of wire, a conductive coating in electrical contact with the pole piece, and a ground conductor electrically connected to the conductive coating for carrying a reference potential to the pole piece to shield the inside of the coil of wire from electrostatic interference (ESI) noise. - View Dependent Claims (14, 15, 16, 17)
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18. A pickup for a musical instrument comprising:
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a coil of wire for providing an audio output signal, an external top surface of the pickup; a conductive coating applied to the external top surface of the pickup; a ground conductor electrically connected to the conductive coating for carrying a reference potential of an audio amplifier to the conductive coating to shield the pickup from electrostatic interference (ESI) noise. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A pickup for a musical instrument comprising:
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a coil of wire for providing an audio output signal; a plurality of pole pieces located in the coil of wire; and a spring for carrying a reference potential of an audio amplifier for the pole pieces. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification