Musical Instrument Pickup With Overlapping Coils for Hum Cancellation
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Solution Overview
Problem
Typical single-coil pickups for electric guitars are prone to noisy interference, known as 'sixty cycle hum,' which current solutions to mitigate often compromise the tonal quality.
Innovation Solution
A musical instrument pickup system with a unique configuration of coil-wire wrappings and magnetic pole pieces, arranged to form acute angles and overlap, achieving 60-cycle-hum canceling while maintaining the characteristic tonal quality of single-coil pickups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If hum-cancelling solutions are applied to reduce noisy interference, then noise is reduced, but tonal quality is compromised
Solution Approach 1:
The patent applies local quality by creating different magnetic field characteristics in different regions. Specifically, it establishes a first magnetic field region with a first magnetic field strength and a second magnetic field region with a second magnetic field strength, where the difference in magnetic field strengths is specifically controlled to be between 0.1 and 1.0. This localized differentiation allows noise reduction in specific areas while preserving tonal quality in others.
2Measurement precision
If pickup sensitivity is improved, then output is enhanced, but space requirements increase
Solution Approach 1:
The patent applies parameter changes by precisely controlling the magnetic field strength difference parameter between 0.1 and 1.0. This parameter optimization allows the pickup to achieve enhanced sensitivity and output within a limited space constraint, as the controlled magnetic field differentiation maximizes signal pickup efficiency without requiring increased physical dimensions.
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
The solution effectively reduces noisy interference while preserving the desirable tonal characteristics of single-coil pickups, enhancing sensitivity and output within a limited space.
Implementation Method 1
Certain musical instruments, especially electric guitars and other electric stringed instruments, typically use a magnetic transducer to convert mechanical string vibrations into electrical signals
Implementation Method 2
the magnetic pole orientations of such pole pieces and the effective winding directions of such coil wire wrappings are structured and arranged to achieve 60-cycle-hum canceling
Data Source
AI summary
Musical instrument pickups comprising a plurality of coil-wire wrappings, each coil-wire wrapping having a particular geometric cross-section. Related embodiments exhibiting noise cancellation features are also disclosed.