Common-Point Pickup Switching for Expanded Tonal Configurations

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing guitar pickup switching systems, such as the standard 3-way and 5-way switches, fail to fully utilize the potential of common-point connection systems, leading to underestimation of possible switching configurations and inadequate tonal options, with many patents mistakenly attributing humbucking effects to magnetic pole orientation rather than circuit connections.

Innovation Solution

The implementation of a common-point connection switching system with expanded mode switches, allowing for 3 dual-coil humbuckers to simulate 3 single-coil pickups, providing a more organized and extensive set of outputs that fit on a standard electric guitar, and enabling the exploration of tonal options through reversible magnets and digital-analog switching.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If standard 3-way or 5-way switches are used for pickup switching, then the device complexity is reduced and ease of operation is improved, but the tonal versatility and number of available configurations are limited

Engineering Contradiction:

Improvetonal versatilityVSAvoidswitching system complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The switching system is divided into multiple independent poles (at least 3 poles), with each pole controlling a specific aspect of pickup configuration. This segmentation allows complex tonal variations to be achieved through coordinated action of simpler switch segments, resolving the contradiction between versatility and complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention adds a fourth dimension to traditional pickup switching by incorporating both series and parallel connection options alongside the usual pickup selection. This dimensional expansion multiplies the number of available tones without requiring a proportional increase in mechanical complexity.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If common-point connection systems are fully utilized with expanded switching, then the number of tonal combinations increases, but the device complexity and switching mechanism become more complicated

Engineering Contradiction:

Improvenumber of tonal combinationsVSAvoidswitching mechanism simplicity

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

Each switch pole is designed to perform multiple functions simultaneously - selecting pickups, determining series/parallel connections, and configuring common-point connections all through the same switch positions. This multi-functionality maximizes tonal combinations while minimizing the number of separate controls needed.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The switching system dynamically reconfigures electrical connections based on switch position, allowing the same physical switch to provide different connection topologies (series, parallel, common-point) depending on the selected position. This dynamic reconfiguration achieves versatility without adding permanent complex circuitry.

Inventive Principle:

Principle #15Dynamics

3Device complexity

If magnetic pole orientation is used to achieve humbucking effects, then the circuit complexity is reduced, but the understanding and implementation of proper humbucking circuits becomes inaccurate

Engineering Contradiction:

Improvecircuit complexityVSAvoidhumbucking implementation accuracy

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The invention replaces the mechanical/magnetic approach to humbucking (relying on magnetic pole orientation) with an electrical/circuit approach (using series and parallel connections of pickups). This substitution achieves accurate humbucking effects through proper circuit topology while avoiding the misconceptions associated with magnetic pole orientation methods.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This approach allows for a greater number of tonal combinations and configurations, including humbucking and non-humbucking circuits, offering more distinct tones and simplifying the switching mechanism, while avoiding the limitations of mechanical switches and misconceptions about magnetic pole orientation.

Implementation Method 1

electro-magnetic string vibration pickups

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS10810987B2More embodiments for common-point pickup circuits in musical instruments

Publication Date: 2020.10.20 BAKER DONALD L

AI summary

This invention refines and expands the use of mode switches in common-point connection circuits for matched pickups on musical instruments. For example, on a 3-coil S-type electric guitar, where the common-point connection circuit with a single-ended output provides three humbucking pair outputs and three humbucking triple outputs, a 4P2T mode switch can ground the common point and provide both all of the standard non-humbucking 5-way switch outputs, as well as adjusting the tone capacitor to make both humbucking and non-humbucking tone outputs more compatible. On an electric guitar with three dual-coil humbuckers, mode switches of one 6P2T, one 2P2T and three 1P2T can choose between dual-coil and single-coil operation modes, humbucking and non-humbucking modes, and partially simulate the effect of flipping single-coil magnets at will, by choosing which coil of each humbucker is used.