Input Device Dynamic Threshold Adjustment for Adjacent Interface Sensitivity
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Solution Overview
Problem
In input devices with adjacent units having different detection methods, unintentional inputs often occur due to changes in detection sensitivity with the operator's position, leading to reduced operability and accidental operations.
Innovation Solution
An input device with a controller that adjusts the detection sensitivity of adjacent input units based on specific screen displays and input locations, validating inputs only when detection values exceed threshold values, thereby minimizing unintentional inputs while maintaining operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the detection sensitivity of the second input interface is kept high to maintain operability, then the operator can easily input operations, but unintentional inputs occur when the object touches or approaches over multiple adjacent input units
Solution Approach 1:
The patent applies dynamics by making the threshold value changeable based on the display screen type. The controller dynamically adjusts the threshold value of the second input interface according to whether a specific screen (such as a drag operation screen) is displayed on the first input interface. This allows the detection sensitivity to be high when needed for operability and low when needed to prevent unintentional inputs, resolving the contradiction between ease of operation and reliability
Solution Approach 2:
The patent changes the parameter (threshold value) of the second input interface based on the screen display state. When a specific screen requiring drag operations is displayed, the threshold value is set to a higher level to prevent unintentional detection of approach operations. When such screens are not displayed, the threshold value is set to a lower level to maintain high operability. This parameter change strategy effectively resolves the contradiction between operability and prevention of unintentional inputs
2Reliability
If the threshold value of the second input interface is increased to prevent unintentional inputs, then false detections are reduced, but the operability and detection sensitivity are lowered
Solution Approach 1:
The threshold value is made dynamic rather than fixed. The controller adjusts the threshold value of the second input interface based on the current screen display state. When a specific screen (such as a drag operation screen) is displayed, the threshold is increased to prevent false detections. When such screens are not displayed, the threshold is decreased to maintain high detection sensitivity and operability. This dynamic adjustment resolves the contradiction between detection accuracy and operability
Solution Approach 2:
The patent changes the threshold value parameter of the second input interface according to the screen type being displayed. By conditioning the threshold value on the display screen state, the system achieves high detection accuracy when needed (when specific screens are displayed) while maintaining high operability at other times. This selective parameter change resolves the contradiction between reliability and ease of operation
Data Source
AI summary
An input device includes a first input interface, a second input interface disposed adjacent to the first input interface, and a controller configured to: validate an input to the first input interface when a first detection value corresponding thereto is greater than a first threshold value; validate an input to the second input interface when a second detection value corresponding thereto is greater than a second threshold value; and change the second threshold value so that detection sensitivity is lowered in response to a specific screen including an item located at an area adjacent to the second input interface being displayed on the first input interface and/or an input received at the first input interface being a specific input to an area adjacent to the second input interface.