Patent ID: 9646594
Date: 2017-05-09
CPC Classifications: G10H

Claim:
1. A tone control system for string instruments comprising: a pair of pickup transducer sensors disposed on a string instrument for generating voltages responsive to vibration of at least one string of the string instrument, said pair of pickup transducer sensors being coupled in series relationship and having a node at a junction between said pair of pickup transducer sensors; a capacitive filter; and a tone selection circuit coupled to each of said pair of pickup transducer sensors and said node, and said capacitive filter, said tone selection circuit includes a single switching element for selectively connecting a) a first of said pair of pickup transducer sensors in parallel with said capacitive filter as a low pass filter therefore and as a high frequency bypass circuit for the second of said pair of pickup transducer sensors, or b) the second of said pair of pickup transducer sensors in parallel with said capacitive filter as said low pass filter therefore and as a high frequency bypass circuit for the first of said pair of pickup transducer sensors, or c) neither of said pair of pickup transducer sensors to said capacitive filter.