Portable Terminal Multi-Input Control via Touch and Sensor Fusion
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Solution Overview
Problem
Conventional portable terminals with touch screens face limitations in generating various input signals due to the dual function of the display unit as both input and output means, making precise control of user functions challenging, especially in situations where exact key presses or touch operations are difficult.
Innovation Solution
A method for a portable terminal that combines touch events and sensor signals to generate multiple input signals, allowing for the control of user functions through distinct commands based on the number of touched points and types of sensor signals, enabling more precise and versatile input operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a full touch screen is used as both input and output means, then the device structure is simplified, but the input signal generation capability is limited
Solution Approach 1:
The patent combines touch screen events with sensor signals (acceleration, rotation, light) to create composite input commands. The controller integrates multiple input sources into unified control signals, allowing the touch screen to function as both display and input while sensor data enhances the input capabilities without adding separate input hardware.
Solution Approach 2:
The touch screen serves multiple functions: it displays information, receives touch input, and when combined with sensor signals, enables complex control operations. The system makes the touch screen universal by allowing it to interpret both standalone touch events and combined sensor-based commands, expanding its functionality beyond traditional touch input.
2Ease of operation
If conventional touch screen input is used, then the device is simple to operate, but precise control is difficult when exact key presses or touches cannot be made
Solution Approach 1:
The system continuously monitors sensor signals (acceleration, rotation, light) during touch events and uses this feedback to determine the intended user action. The controller analyzes the combination of touch position, touch duration, and sensor data to accurately interpret user intentions, providing precise control even when exact key presses or touches are difficult to execute.
3Adaptability or versatility
If multiple input sources are combined, then input signal versatility is improved, but the control system complexity increases
Solution Approach 1:
The control system segments the input processing into distinct modules: touch event detection, sensor signal acquisition, and command generation. Each module handles specific input types independently before the controller integrates them into unified commands. This segmentation manages complexity by organizing the multi-input system into manageable functional blocks.
Data Source
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AI summary
An operating method of a terminal based on multiple inputs and a portable terminal supporting the same are disclosed. The operating method includes: receiving a sensor signal in a state that a touch-down event having at least one touch point is being maintained, generating respective distinct commands according to at least one of a number of touch points of the touch-down event, and a type and a form of the certain sensor signal, activating one of a user function or controlling an operation of a currently activated user function according to the generated commands; and controlling variation in a screen output on a display panel according to the activation or the control of the user function.