Touchscreen Vibration Feedback for Accurate Virtual Key Operation
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Solution Overview
Problem
Handheld electronic devices lack tactile feedback during touch operations, leading to issues such as finger sliding out of a preset range, false touches, and inaccurate function triggering.
Innovation Solution
A vibration control method is implemented using a touch screen and motors to define a vibration enabling area based on a target image, generating tactile feedback through motor vibrations when the user touches this area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a touch screen is used instead of physical control keys, then the device structure is simplified and portability is improved, but tactile feedback is lost leading to operation accuracy degradation
Solution Approach 1:
The patent applies mechanical vibration by driving the touch screen to vibrate at specific frequencies when a touch operation is detected. The vibration controller generates vibration signals that cause the touch screen to produce tactile feedback through mechanical vibration, simulating the sensation of pressing a physical key while maintaining the simplified touch screen structure.
Solution Approach 2:
The patent implements feedback by detecting touch operations on the touch screen and responding with vibration feedback. The vibration controller receives touch operation signals, determines vibration parameters based on the touch location and type, and generates corresponding vibration signals to provide tactile feedback to the user, creating a closed-loop interaction system.
2Measurement precision
If vibration feedback is added to the touch screen, then operation accuracy is improved, but device complexity increases
Solution Approach 1:
The patent merges the vibration control functionality into the existing touch screen system by integrating a vibration controller that works in conjunction with the touch screen. The vibration controller is electrically connected to both the touch screen and the signal generator, combining multiple functions (touch detection, vibration control, and signal generation) into a coordinated system rather than adding completely separate components.
Solution Approach 2:
The vibration controller serves multiple functions: it detects touch operations on the touch screen, determines appropriate vibration parameters based on touch location and type, generates vibration signals, and controls the vibration output. This multi-functional component reduces overall system complexity by consolidating control logic rather than requiring separate dedicated components for each function.
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
Provides tactile feedback akin to operating a physical key, enhancing touch operation accuracy and reducing errors.
Implementation Method 1
the motor is configured to generate a vibration effect
Data Source
AI summary
A vibration control method adapted to an electronic device is provided. The electronic device includes a touch screen for showing a picture and a motor for generating a vibration effect. The vibration control method includes: determining a target image based on a setting signal, and generating a control instruction, where the control instruction is related to the target image and used for controlling the motor to generate the vibration effect; determining a location of the target image on the picture and defining a vibration enabling area based on the location of the target image; and defining the vibration enabling area as related to the control instruction. An electronic device adapted to the vibration control method is also provided.