Adaptive Pressure Threshold for Multi-Click Input Fatigue
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Solution Overview
Problem
Users experience fatigue when performing multi-click operations due to the consistent pressure requirements in conventional input devices, which do not adapt the threshold pressure values for subsequent clicks within a predetermined multi-click detection period.
Innovation Solution
An input device with a pressure sensor and controller that detects a make event using a first threshold pressure value for the initial click and a lower second threshold for subsequent clicks within a multi-click detection period, reducing the perceived pressure needed for subsequent clicks and thus alleviating user fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a consistent pressure threshold is used for all clicks in multi-click operations, then the input device can reliably detect each click, but users experience fatigue due to the repeated application of the same pressure requirement
Solution Approach 1:
The patent applies dynamics by making the pressure threshold adaptive rather than static. The system dynamically adjusts the pressure threshold based on the click sequence: using a first threshold for the initial click and a second, lower threshold for subsequent clicks within the multi-click detection period. This dynamic adjustment allows the system to maintain reliable detection while reducing the physical effort required for repeated clicks, thereby resolving the contradiction between reliability and ease of operation.
Solution Approach 2:
The patent implements parameter changes by modifying the pressure threshold parameter throughout the multi-click operation. The system changes from using a first pressure threshold value to a second, lower pressure threshold value for subsequent clicks. This parameter change enables the system to continue detecting clicks reliably while reducing the pressure requirement, thus addressing both the reliability and user fatigue concerns.
2Ease of operation
If a lower pressure threshold is used for subsequent clicks, then user fatigue is reduced, but there is a risk of false detections or reduced detection accuracy
Solution Approach 1:
The system uses dynamics to adjust the pressure threshold based on the temporal context of the click. By implementing a multi-click detection period and adapting the threshold based on whether it's the first or subsequent click within that period, the system maintains detection accuracy while allowing lower pressure for subsequent clicks. The dynamic nature ensures that the lower threshold is applied contextually, preventing false detections.
Solution Approach 2:
The system performs preliminary action by establishing the multi-click detection period and determining the click sequence before applying the lower threshold. The controller identifies whether a click is the first or subsequent within the detection period, and only then applies the appropriate threshold. This preliminary identification ensures that the lower second threshold is applied correctly to subsequent clicks, maintaining detection precision while reducing user fatigue.
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 adaptive threshold adjustment reduces user fatigue during multi-click operations by lowering the required pressure for subsequent clicks, enhancing user comfort and reducing physical strain.
Implementation Method 1
a pressure sensor configured to detect a set of physical touches indicating a pressed state of a pointing body on an operation surface of a computing device
Data Source
AI summary
Methods, systems, and apparatus that detect computing device inputs by a pointing body are disclosed. One method includes detecting user inputs based on a received set of physical touches of a pointing body pressing an operation surface of a computing device indicating a pressed state of the operation surface detected by a pressure sensor, detecting a make event comprising a first physical touch including a first pressure value that is greater than or equal to a make threshold pressure value based on the detected user inputs, and utilizing a first threshold as the make threshold for use in detecting a first round of the make event and a second threshold, which is less than the first threshold, as the make threshold for use in detecting subsequent rounds of the make event within a first predetermined multi-click detection period of time. Systems and apparatus for performing the method are also disclosed.