Hall-Effect Rocker Control for Intuitive Arcuate Adjustment

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Solution Overview

Problem

Existing manually operated control devices for electronic systems lack ergonomic and intuitive mechanisms for varying operating parameters, such as audio volume or brightness, which are often limited to circular or linear motions and do not provide a natural user experience.

Innovation Solution

A rocker actuator mechanism with a magnetic source and a variable Hall effect sensor device that allows for arcuate motion control, providing a proportional analog or digital output signal based on the actuator's position, enabling intuitive control of electronic systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a rotating or slider type resistive control device is used, then the control function is achieved, but the ergonomics and intuitiveness are limited

Engineering Contradiction:
Improveergonomics and intuitivenessVSAvoidcontrol mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces traditional mechanical resistive control devices (rotating knobs, slider potentiometers) with a magnetic field-based Hall effect sensing system. The rocker actuator moves a magnetic source that interacts with the Hall effect sensor to generate control signals, eliminating the need for mechanical contact and resistive elements while improving ergonomics through natural arcuate motion.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the fundamental operating parameter from mechanical resistance to magnetic field interaction. By utilizing the Hall effect to detect magnetic field strength variations caused by the moving magnetic source, the system transforms physical position into electrical signals through magnetic parameter changes rather than mechanical resistance changes.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If traditional circular or linear motion controls are used, then the control function is achieved, but the user experience is not natural

Engineering Contradiction:
Improveuser experienceVSAvoidmotion path
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The patent implements arcuate motion for the rocker actuator, following a curved path that mimics natural finger movement. This curved trajectory, as opposed to linear or circular motion, provides a more ergonomic and intuitive user experience by aligning with the natural arc of finger pressing motion.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Reliability

If contact-based control devices are used, then the control function is achieved, but wear and reliability issues arise

Engineering Contradiction:
Improvedevice durabilityVSAvoidsensor system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent eliminates mechanical contact between control elements by using magnetic field interaction. The magnetic source moves without touching the Hall effect sensor, and control signals are generated through magnetic field variations rather than physical contact, thereby eliminating wear and improving reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The magnetic field serves as an intermediary between the rocker actuator and the Hall effect sensor. Instead of direct mechanical contact, the moving magnetic source modulates the magnetic field, which the Hall effect sensor detects to generate control signals, providing a non-contact coupling mechanism.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 rocker actuator mechanism offers a more ergonomic and intuitive control experience by allowing proportional adjustment of electronic system parameters through arcuate motion, enhancing user interaction.

Implementation Method 1

A manually activated rocker styled actuator mechanism is fixedly attached to a magnet source... a non-contact variable magnetic hall effect sensor device... The output signal is substantially at a minimum value (or at maximum value pending initial magnet polarity setting) when the magnet source is in the first position (rest) relative to the Variable Hall effect sensor device

Methodology Applied
Scientific EffectHall effect: Hall Effect

Data Source

PatentUS12584768B2Rocker actuator potentiometer
Publication Date: 2026.03.24 PANASONIC AUTOMOTIVE SYSTEMS AMERICA LLC
  • US12584768B2 patent drawing
  • US12584768B2 patent drawing
  • US12584768B2 patent drawing

AI summary

A manual control for an electronic apparatus includes a manually activated rocker actuator mechanism coupled to a magnet source. The magnet source is in a rest position relative to a Variable Hall effect sensor device when the rocker actuator mechanism is in a rest position. A variable output signal from the sensor device is substantially at a minimum value when the magnet source is in the rest position relative to the sensor device. The magnet source is in a maximum position relative to the sensor device when the rocker actuator mechanism is in a maximum position. The variable output signal is substantially at a maximum value when the magnet source is in the maximum position relative to the sensor device.