Patent ID: 8129607
Filing Date: 2012-03-06
Classification: G10H

Abstract:
1. An electromagnetic field pickup for a musical instrument comprising: a) an electromagnetic signal generator; b) an electromagnetic field transducer; c) a mixer; the electromagnetic signal generator, the electromagnetic field transducer and the mixer are respectively connected in series; the electromagnetic signal generator is also connected directly to the mixer; so constructed and arranged that when power is supplied to the electromagnetic field pickup a first electromagnetic signal and a second electromagnetic signal are respectively sent from the electromagnetic signal generator to the electromagnetic field transducer and the mixer; a first electromagnetic field derived from the first electromagnetic signal is transmitted from the electromagnetic field transducer towards a vibrating element of the musical instrument; a second electromagnetic field derived by re-radiation and Doppler shifted modulation of the first electromagnetic field is received from the vibrating element by the electromagnetic field transducer; a third electromagnetic signal derived from the second electromagnetic field is sent from the electromagnetic field transducer to the mixer; the third electromagnetic signal and the second electromagnetic signal are mixed by the mixer to produce a fourth electromagnetic signal; and the fourth electromagnetic signal includes a difference signal being a musical frequency audio electrical signal of substantially same pitch, intonation and sustain as a sound vibration from the vibrating element of the musical instrument.