Rotary Click Control for Consistent Setting Adjustment
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Solution Overview
Problem
Rotational operation members in electronic devices, such as dials, provide a clicking sensation at predetermined angles, causing a sense of unnaturalness when changing settings due to varying amounts of rotation and intervals between values.
Innovation Solution
An electronic device with a control unit that adjusts the angle of rotation for generating a clicking sensation based on the division of settings, ensuring consistent rotation amounts regardless of setting levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a clicking sensation is provided at each predetermined angle of rotation, then the user can tactually sense the setting changes, but the amount of rotation and clicking sensation vary depending on the number and positions of setting values, causing a sense of unnaturalness
Solution Approach 1:
The patent applies dynamics by making the click angle variable rather than fixed. The control unit dynamically adjusts the click angle based on the current setting value and the number of division values, so that the rotation amount per click remains substantially constant across different setting ranges. This resolves the contradiction by allowing the system to adapt its mechanical response characteristics to maintain operational naturalness while preserving precise setting divisions.
Solution Approach 2:
The patent changes the parameter of click angle according to the setting value and division count. By calculating and adjusting the click angle parameter dynamically, the system ensures that each click corresponds to a substantially constant rotation amount regardless of the total number of divisions. This parameter adaptation resolves the contradiction between precise setting division and natural operational feel.
2Measurement precision
If the number of division values between setting values is increased, then the setting precision is improved, but the rotation amount and clicking sensation become inconsistent, reducing operational naturalness
Solution Approach 1:
The patent replaces a complex mechanical mechanism for providing clicking sensations with an electronic control system. The control unit calculates and controls the click angle based on setting values and division counts, eliminating the need for complex mechanical structures while achieving consistent rotational feedback. This substitution reduces device complexity while maintaining setting precision and operational naturalness.
3Device complexity
If the click angle is fixed for all settings, then the mechanism is simple, but the rotation amount varies with different setting divisions, causing unnatural operation
Solution Approach 1:
The patent makes the control unit universal by enabling it to handle multiple setting types and division counts through a unified dynamic calculation approach. The same control unit adapts its behavior based on the current setting context, providing consistent rotational feedback across different settings without requiring separate mechanisms for each case. This universal approach maintains both simplicity and operational consistency.
Data Source
AI summary
An electronic device comprises a rotational operation member and a control unit that controls an angle of rotation at which to generate a clicking sensation in the rotational operation member. The control unit controls the angle of rotation based on a division of a setting to be changed in accordance with a rotational operation of the rotational operation member.