Music – Instruments – Stringed
Reexamination Certificate
2006-09-12
2006-09-12
Fletcher, Marlon T. (Department: 2837)
Music
Instruments
Stringed
C084S743000, C084S727000
Reexamination Certificate
active
07105731
ABSTRACT:
An apparatus and method for amplifying low amplitude vibrations from stringed instruments, and in particular guitars while reducing Gaussian and 60 Hz hum noise from the signal. In particular, the invention incorporates the use of one or more bipolar magnets in conjunction with high precision differential amplifiers and a power source. The bipolar magnets may be arranged at varying locations on the guitar as long as they are within range to induce an electrical signal in the strings when they are played. The signal is then fed through the amplifier circuitry whereby noise is eliminated and then played through a standard speaker.
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Fletcher Marlon T.
Russell Christina
Schmeiser Olsen & Watts LLP
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