Touch Panel Vibration Feedback for Input Recognition
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Solution Overview
Problem
Conventional touch panel user interfaces rely mainly on visual feedback, making it difficult for users to recognize input information during operations like sliding or scrolling, thus requiring improved operability.
Innovation Solution
A signal processing device that acquires input information through touch operations and provides different types of feedback control, such as vibrations, based on the type of input information and operation speed, to enhance user interface operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If visual feedback is used for touch operations, then the user interface is simple to implement, but the user cannot recognize input information during operation
Solution Approach 1:
The patent applies mechanical vibration to the touch panel surface through a vibration generation unit. When a touch operation is detected, the control unit activates the vibration generation unit to produce tactile vibrations that correspond to the input information, allowing users to perceive feedback through touch rather than vision alone.
Solution Approach 2:
The patent implements a feedback mechanism where the control unit processes touch operation information and generates corresponding vibration feedback. The vibration characteristics (frequency, amplitude, pattern) are determined based on the type and position of the touch input, creating a closed-loop feedback system that provides real-time tactile confirmation of user actions.
2Loss of information
If tactile feedback is added to the touch panel, then user recognition of input information improves, but the device complexity increases
Solution Approach 1:
The patent uses the touch panel's existing vibration capabilities (or integrated vibration motors) to generate tactile feedback. The control unit modulates the vibration characteristics based on the detected touch operation type, such as using different vibration patterns for different input modes or positions, thereby conveying information through tactile sensations without requiring complex additional hardware.
Solution Approach 2:
The control unit changes vibration parameters (frequency, amplitude, duration, pattern) according to the type of touch operation detected. For example, it may use high-frequency vibrations for certain input modes and low-frequency vibrations for others, or vary the vibration intensity based on the position on the touch panel, thereby encoding multiple types of information through parameter variations.
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 enables users to better recognize and interact with input information through tactile feedback, improving the overall operability of touch panel interfaces by differentiating vibrations for various input types and speeds.
Implementation Method 1
a touch panel configured to display a user interface for receiving a touch operation by a user, detect a position touched through the touch operation, and vibrate in accordance with signal processing based on the touch operation
Data Source
AI summary
The present disclosure relates to a signal processing device, a signal processing method, and an electronic device that are capable of providing user interface having better operability. The signal processing device includes an input information acquisition unit that acquires input information input through a touch operation by a user, and a feedback control unit that outputs mutually different kinds of feedback control in accordance with a kind of the input information continuously acquired in response to movement of a position touched through the touch operation. In addition, the signal processing device further includes an operation speed calculation unit that calculates an operation speed at which a touched position through the touch operation moves, and the feedback control unit changes the output of feedback control in accordance with the operation speed. The present technology is applicable to, for example, an electronic device including a touch panel.