Touch Screen Response Speed via Parameter Monitoring

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Solution Overview

Problem

Capacitive touch screens have a low response speed due to only detecting the instant when a finger presses down and lifts off, leading to delayed analysis of touch operations.

Innovation Solution

An information processing method that continuously monitors touch screen parameter values, such as capacitance or contact pressure, to generate an operation response instruction when specific conditions are met, allowing for earlier detection of a complete click operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If the touch screen only detects the instant when a finger presses down and lifts off, then the detection process is simple, but the response speed is slow

Engineering Contradiction:
Improveresponse speedVSAvoiddetection process complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by continuously monitoring touch parameters during the pressing phase and identifying the maximum value in advance. When the parameter reaches its maximum and starts decreasing, the system immediately triggers the response instruction, rather than waiting for the finger to completely lift off. This advance detection significantly improves response speed while maintaining reasonable system complexity.

Inventive Principle:
Principle #10Preliminary action

2Loss of time

If the touch screen continuously monitors parameter values to detect complete click operation earlier, then the response speed increases, but the processing complexity increases

Engineering Contradiction:
Improvedetection timeVSAvoidprocessing complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements feedback by continuously comparing real-time touch parameters with previously recorded maximum values. The system monitors whether the current parameter value is decreasing after reaching the maximum, and uses this feedback to determine when to trigger the response. This feedback mechanism enables early detection of complete click operations while keeping processing complexity manageable through systematic parameter comparison.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If the system waits for the finger to be completely lifted off to analyze the touch operation, then the detection logic is simple, but the user experience deteriorates

Engineering Contradiction:
Improveuser experienceVSAvoiddetection logic complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent applies dynamics by making the detection logic adaptive and flexible. Instead of using a fixed detection point (only after finger lift-off), the system dynamically determines the response trigger point based on real-time parameter variations. The detection logic adjusts to identify when the parameter reaches maximum and begins decreasing, providing better user experience while maintaining clear and manageable detection rules.

Inventive Principle:
Principle #15Dynamics

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 approach increases response speed and improves user experience by recognizing the completion of touch operations before the finger is lifted, enhancing the responsiveness of capacitive touch screens.

Implementation Method 1

a capacitive touch screen is capable of detecting touch input from user through capacitance induction effect

Methodology Applied
Scientific EffectCapacitance induction effect: Capacitance

Data Source

PatentUS10001868B2Information processing method, information processing device, and electronic apparatus
Publication Date: 2018.06.19 LENOVO (BEIJING) LTD
  • US10001868B2 patent drawing
  • US10001868B2 patent drawing
  • US10001868B2 patent drawing

AI summary

An information processing method, an information processing device and an electronic apparatus with a touch screen are provided. The method includes: obtaining a first parameter value of the touch screen at instant T1; obtaining a second parameter value of the touch screen at instant T2 after instant T1, where an instant T3 is defined between instant T1 and instant T2, and the instant T3 corresponds to a third parameter value, where the third parameter value is greater than or equal to the first parameter value and any one of parameter values corresponding to instants between instant T1 and instant T2; and generating an operation response instruction in a case that the second parameter value is greater than a preset parameter value and a correspondence among the first parameter value, the second parameter value and the third parameter value meets a preset condition.