Ibanez Jem 77 A electric guitar pickup is actually much like a vibrant mike coil. For decades, powerful microphones have now been sent with the voice coil attached to the principal of the microphone's transformer, and perhaps not called to surface (‘floating'). The microphone's event is typically linked to the cable guard, that is attached to the microphone amplifier's ground (see Rane's website for more discussion).
By and large, active microphones are extremely quiet devices consequently of the combination of transformer isolation and healthy, hanging indication lines throughout, as well as guarded, humbucking coils.
So why not guitars? Instruments are once plagued by noise. Humbucking pickups are only an incomplete (though important!) solution. Well-known answer is always to move practicing the guitar pickup to a healthy production, just like a microphone. A similar strategy was published that 2001 patent request like this Ibanez Jem 77?