Rotary Operator Press Isolation for Vibration-Accurate Input
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing playback systems, such as those described in Patent Literature 1, suffer from reduced detection sensitivity of the press detecting unit due to the weight of components on the tape-shaped switch, which causes false detection of vibrations as pressing operations, especially in environments with significant music-related vibrations.
Innovation Solution
The acoustic device incorporates a rotary operator with a press detecting unit along its outer circumference and an elastic member interposed between the pressed portion and the press detecting unit, reducing the weight of components on the detecting unit and enhancing detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If rollers and roller-holding structure are disposed on the tape-shaped switch to enable rotary operation, then the rotary operator can rotate smoothly, but the weight of components on the switch increases causing vibration detection errors
Solution Approach 1:
The patent extracts the rollers and roller-holding structure from the tape-shaped switch assembly and relocates them to a dedicated rotary operator structure. This separation removes the heavy rotational components from the sensitive pressure detection switch, allowing the switch to accurately detect pressing operations without false triggers from vibration, while the rotary operator independently provides smooth rotation functionality.
2Measurement precision
If the press detecting unit is made highly sensitive to detect pressing operations, then pressing detection accuracy improves, but vibration from music playback is falsely detected as pressing operations
Solution Approach 1:
The patent separates the pressure detection function from the rotational support structure by relocating rollers to an independent rotary operator. This extraction allows the press detecting unit to maintain high sensitivity for detecting pressing operations while being isolated from vibration interference that occurs during music playback, as the heavy rollers are no longer part of the switch assembly.
Solution Approach 2:
The patent introduces a dedicated rotary operator structure as an intermediary between the user's rotational input and the base unit. This intermediary absorbs mechanical vibrations from music playback through its separate mounting and rotational mechanism, preventing these vibrations from being transmitted to the press detecting unit while still allowing smooth rotary operation to be detected.
3Device complexity
If heavy components are placed on the tape-shaped switch to support rotary operation, then the rotary operator structure is simplified, but the detection sensitivity of the press detecting unit is reduced
Solution Approach 1:
The patent segments the device into functionally independent modules: a press detecting unit for detecting pressing operations, a rotary operator for enabling smooth rotation, and a base unit for support. This segmentation allows each component to be optimized for its specific function without compromising the other, maintaining both structural simplicity and detection sensitivity.
Solution Approach 2:
The patent extracts the heavy rollers and roller-holding structure from the tape-shaped switch assembly and places them in a separate rotary operator module. This extraction maintains the simplicity of the overall rotary operator structure while eliminating the weight issue that reduced detection sensitivity, as the switch now only needs to detect pressing forces without supporting rotational components.
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 configuration improves the detection accuracy of pressing operations by isolating the press detecting unit from vibrations, ensuring reliable detection of pressing forces applied to the rotary operator, even in environments with music-induced vibrations.
Implementation Method 1
an elastic member interposed between the pressed portion and the press detecting unit
Implementation Method 2
an elastic member interposed between the pressed portion and the press detecting unit
Data Source
AI summary
An acoustic device includes a rotary operator and a base supporting the rotary operator so that the rotary operator is rotatable. The rotary operator includes a rotary body provided on the base, a pressed portion provided on the rotary body and on which a pressing operation is performed, a press detecting unit provided on the rotary body along an outer circumference of the rotary operator and configured to detect the pressing operation performed on the pressed portion, and elastic members interposed between the pressed portion and the press detecting unit.