Category Archives: Pickup circuits & switching

On the Topologies of Guitar Pickup Circuits

How do you get 620 potentially unique guitar tones from 4 single-coil pickups, or 310 from 3 humbuckers? Read here: https://www.researchgate.net/publication/323390784_On_the_Topologies_of_Guitar_Pickup_Circuits Abstract: Many of the U.S. patents involving switching circuits for electric guitar pickups have failed in the marketplace because … Continue reading

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The Walkin Squawkin Patent Examiner Blues – Part 1

I got this in an e-mail from my U.S. Patent Office Patent Examiner on Jan 24th, 2018: “I cannot conceive of any way to generate an “infinite” (your word) table that would accommodate the breadth of claim 28. You mentioned … Continue reading

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Why guitar pickup switching patents fail in the marketplace

I’ve reviewed some more guitar pickups switching patents lately, and most if not all of the ones I’ve seen suffer design flaws that generally cause them to fail in the marketplace, for some of the following reasons: They almost never … Continue reading

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