Rotor Input Detection via Reactance and Motion Conversion
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Solution Overview
Problem
Existing rotor input detection methods are inefficient and complex, lacking sensitivity in detecting rotational inputs, especially in miniaturized forms, and fail to integrate effectively with touch and external force detection.
Innovation Solution
A rotor input detecting apparatus featuring a reactance element, a sensing member, and a motion conversion member that changes reactance based on rotation, incorporating a first and second reactance element to detect rotation, touch, and external forces, with a motion conversion member performing motion conversion between rotational and translational motions, and a sensing member with higher conductivity than the motion conversion member.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a rotor input detection apparatus uses a motion conversion member to convert rotational motion to translational motion for detection, then the sensitivity of rotational input detection is improved, but the device complexity increases due to additional components
Solution Approach 1:
The patent combines multiple detection functions (rotational input detection, touch detection, and external force detection) into a single integrated apparatus. The motion conversion member serves multiple purposes: it converts rotational motion to translational motion for rotation detection, while also enabling touch and external force detection through the same reactance element, thereby reducing overall system complexity despite the sophisticated detection mechanism
Solution Approach 2:
The reactance element serves multiple detection functions simultaneously. It detects rotational inputs through the motion conversion mechanism, while also detecting touch inputs and external forces applied to the rotor. This multi-functionality allows a single component to handle various input types, improving detection sensitivity without proportionally increasing device complexity
2Adaptability or versatility
If the apparatus integrates multiple reactance elements for detecting rotation, touch, and external forces, then the versatility of detection is improved, but the device complexity increases
Solution Approach 1:
The patent merges multiple detection capabilities into a unified structure. The first reactance element detects rotational inputs through the motion conversion member, while the second reactance element detects both touch inputs and external forces. This consolidation allows the apparatus to handle various input types (rotation, touch, force) using an integrated design rather than separate independent sensors, thereby improving versatility without proportionally increasing complexity
3Measurement precision
If the sensing member has higher conductivity than the motion conversion member, then the detection precision is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies different conductivity properties to different components based on their specific functions. The sensing member is designed with higher conductivity to optimize its sensing capability, while the motion conversion member has lower conductivity. This localized differentiation of material properties allows each component to perform its function optimally. The conductivity contrast enhances detection precision by ensuring that the sensing member dominates the electrical characteristics, making it easier to detect changes caused by motion and external forces
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 apparatus efficiently detects rotational inputs with enhanced sensitivity, miniaturization, and integrates detection of touch and external forces, providing a stable and precise input sensing mechanism.
Implementation Method 1
a reactance element disposed in the rotor; a sensing member disposed in the rotor; and a motion conversion member configured to move in the rotor based on a rotation of the portion of the rotor, and configured to move together with the sensing member to change a reactance of the reactance element according to the rotation of the portion of the rotor
Data Source
AI summary
An apparatus that detects a rotor input is provided. The apparatus includes a rotor comprising at least a portion which is configured to rotate around an axis of rotation; a reactance element disposed in the rotor, a sensing medium member disposed in the rotor, and a motion conversion member configured to move in the rotor based on a rotation of the portion of the rotor, and configured to move together with the sensing medium member to change a reactance of the reactance element according to the rotation of the portion of the rotor.