Touch Disable Mode Using Ambient Light and Acceleration Sensors
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Solution Overview
Problem
As the screen-to-body ratio of terminals increases, the removal of distance sensors on the front panel makes it difficult to prevent accidental touches, as existing methods rely on these sensors to detect proximity and prevent unintended interactions.
Innovation Solution
A method and device that utilize ambient light and acceleration sensors to determine the terminal's posture, activating a touch-disable mode when the terminal is in an inverted posture, such as when it is in a pocket, without the need for a distance sensor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a distance sensor is removed to increase screen-to-body ratio, then the terminal design is improved, but the ability to prevent accidental touches deteriorates
Solution Approach 1:
The patent introduces ambient light sensors and acceleration sensors as intermediary components to detect pocket scenarios. These sensors act as mediators between the terminal and the user's pocket environment, enabling indirect detection of pocket insertion without requiring a distance sensor on the front panel.
Solution Approach 2:
The patent replaces the mechanical/optical distance sensing system with an environmental sensing system combining ambient light sensors and acceleration sensors. This substitution uses light intensity and motion data instead of direct distance measurement to infer pocket scenarios, maintaining accidental touch prevention without the front panel sensor.
2Use of energy by moving object
If ambient light sensing is used to detect pocket scenario, then energy consumption is reduced, but detection accuracy may worsen
Solution Approach 1:
The patent merges ambient light sensing with acceleration sensing to create a combined detection system. By fusing data from both sensor types, the system achieves more accurate pocket scenario detection while maintaining lower energy consumption compared to using only distance sensors or more power-intensive alternatives.
Solution Approach 2:
The system implements feedback mechanisms where acceleration data validates and refines ambient light sensor interpretations. When the terminal detects inverted posture through acceleration sensors, it confirms the pocket scenario hypothesis generated by ambient light sensing, reducing false detections and improving overall detection accuracy.
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
Accurately prevents accidental touches by recognizing the pocket scenario and activating the touch-disable mode, reducing energy consumption and false detections while ensuring the terminal remains functional outside the pocket.
Implementation Method 1
brightness of ambient light is acquired
Implementation Method 2
determine a body posture of the terminal
Data Source
AI summary
The present disclosure provides a method and device for preventing a terminal from being inadvertently touched. The method includes: brightness of ambient light is acquired; a body posture of the terminal is determined when the brightness of the ambient light is less than a brightness threshold; and a touch-disable mode is activated when the body posture of the terminal is an inverted posture. In the present disclosure, when the brightness of the ambient light is less than the brightness threshold and the body posture of the terminal is an inverted posture, it is determined that the terminal is in a pocket of a user and the touch-disable mode is activated.