Flexible Band Input Device for Wearable Gesture Control
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Solution Overview
Problem
Existing wearable devices face challenges in precisely detecting and determining shape changes, movements, and external forces with low manufacturing costs, leading to increased complexity and cost, and difficulties in providing consistent input signals across different users.
Innovation Solution
An input device with a band having a flexible area that includes fixed and transformation units, equipped with sensors to detect changes and output signals, which are used to determine cause operations such as shape changes, movements, or applied forces, allowing for the designation and execution of corresponding user interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image sensors, accelerator sensors, or gyro sensors are used to detect body movements, then detection capability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts and eliminates complex sensors (image sensors, accelerator sensors, gyro sensors) from the wearable device, retaining only simple resistance change detection mechanisms while achieving sufficient detection capability for basic movement and shape change monitoring
Solution Approach 2:
The patent employs inexpensive resistance sensors instead of expensive inertial measurement units, accepting that the simpler sensors have limitations but are sufficient for the intended application scope, thereby reducing manufacturing cost
2Measurement precision
If multiple sensor arrays and substrate components are used to detect gestures, then detection precision is improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent removes unnecessary substrate and cover components that were previously required to support multiple sensor arrays, simplifying the manufacturing process while maintaining essential gesture detection functionality through resistance change measurement
Solution Approach 2:
The patent makes the resistance sensor serve multiple detection functions (shape change, movement, gesture) that were previously required separate sensor arrays, thereby reducing component count and manufacturing complexity
3Stability of the object's composition
If the same UI and display function are used for different users, then system consistency is maintained, but adaptability to different users decreases
Solution Approach 1:
The patent introduces dynamic adaptability where the UI and display functions can be customized for different users while maintaining the core system architecture, allowing the system to adjust to individual user preferences and behaviors
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 device enables precise detection and determination of shape changes and movements with low manufacturing costs, allowing for user-specific input signal designation and execution, enhancing usability and reducing complexity.
Implementation Method 1
a sensor which detects a change of the flexible area and outputs a signal corresponding to the detected change of the flexible area
Data Source
AI summary
An input device according to an exemplary embodiment of the present invention includes: a band including a contracted or extended flexible area; a sensor which detects a change of the flexible area and outputs a signal corresponding to the detected change of the flexible area; and a main body which is connected to the band and determines a cause operation for the change of the flexible area based on the signal output from the sensor, in which the flexible area includes fixed units, and connection units which connect the fixed units and are contracted or extended, and a distance between the fixed units is changed according to the cause operation.