Patent ID: 8969701
Filing Date: 2015-03-03
Classification: G10H

Abstract:
1. A magnetic pickup for detecting the vibration of ferromagnetic strings in a musical instrument, the pickup comprising: at least one ferromagnetic pole piece; a wire coil that surrounds at least a portion of each pole piece; a primary magnetic source associated with each pole piece that creates a primary magnetic field distribution in each pole piece and one or more ferromagnetic strings of a musical instrument when the pickup is mounted in the instrument; a mounting structure that holds each pole piece and the coil in a stable relative position and enables their attachment to the stringed musical instrument; and a secondary magnetic source that modifies the primary magnetic field distribution, the secondary magnetic source having a maximum magnetic induction that is smaller than the maximum magnetic induction of the primary source and one or more components that are each spatially separated from the at least one pole piece and the primary magnetic source.