Capacitive Touch Input Sensitivity Adaptation for Reliable Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Capacitive touch sensors in data input devices exhibit variations in detection sensitivity due to component accuracy, operator habits, and environmental changes, leading to inconsistent input detection and potential failure in recognizing intended operations.
Innovation Solution
A data input device with a control circuit that configures and updates the detection sensitivity of capacitive touch sensors based on the magnitude of detected input values, allowing for adaptive adjustment to maintain optimal sensitivity and ensure reliable input detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a uniform detection threshold is used for all touch sensors, then the manufacturing process is simple, but touch sensors with varying detection amounts cannot be properly detected
Solution Approach 1:
The patent applies local quality by setting different detection thresholds for different touch sensors based on their individual detection characteristics. Each touch sensor's threshold is adjusted according to its specific detection amount, allowing sensors with varying sensitivities to be properly detected while maintaining manufacturing simplicity.
2Adaptability or versatility
If the detection sensitivity of touch sensors is allowed to change freely, then the adaptability to operator habits and environmental changes is improved, but the reliability of input operation detection may be compromised
Solution Approach 1:
The patent implements feedback by monitoring the detection amounts of touch sensors and automatically adjusting their thresholds based on actual usage patterns and environmental conditions. This feedback mechanism allows the system to adapt to operator habits and environmental changes while maintaining reliable input detection through continuous optimization.
Solution Approach 2:
The patent applies dynamics by making the detection thresholds adjustable and adaptable rather than fixed. The thresholds can be dynamically modified based on usage history and environmental factors, allowing the system to optimize detection sensitivity over time while maintaining reliability through controlled adjustment mechanisms.
3Measurement precision
If the detection threshold is set to be highly sensitive, then the detection precision is improved, but false detection of non-input operations increases
Solution Approach 1:
The patent applies local quality by customizing detection thresholds for each touch sensor based on its specific location and detection characteristics. This localized threshold setting allows each sensor to operate at optimal sensitivity without causing false detections, as each threshold is tailored to the specific sensor's response characteristics.
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 solution effectively adjusts detection sensitivity to optimize input recognition, reducing the impact of variations and ensuring consistent operation without compromising reliability.
Implementation Method 1
a capacitive touch sensor for implementing a flat input operation section having highly sensitive input detection
Data Source
AI summary
A data input device for an electronic device includes: a operation section having a plurality of capacitive touch sensors to detect a input operation; and a control circuit section that outputs output information corresponding to detected information of the input operation input from the operation section to the electronic device when it is determined that the input operation is performed, wherein the control circuit section is configured to configure arbitrarily a detection sensitivity of the touch sensor before determining whether the input operation is performed, wherein the control circuit section determines whether the input operation is performed in response to a magnitude of an input value of the detected information, based on the configured detection sensitivity, wherein, when it is determined that the input operation is performed, the control circuit section updates the detection sensitivity configured for the touch sensors based on the magnitude of the input value.