Mobile Terminal Screen Orientation Switching via Gravity Sensing
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Solution Overview
Problem
The flexibility of switching between a horizontal screen and a vertical screen on mobile terminals is poor, particularly when a user lies on their side, as existing methods using gravity sensing chips fail to accurately determine the orientation and meet user requirements.
Innovation Solution
A method that determines the operation mode of a mobile terminal based on vertical acceleration values, using a three-axis gravity sensing chip to differentiate between normal and recumbent operation modes, and sets specific criteria for switching between screen orientations, including angles and gravity values, to enhance flexibility in screen switching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a gravity sensing chip is used to automatically switch between horizontal and vertical screens, then the switching is automated, but the flexibility and accuracy of orientation detection deteriorates when the user lies on their side
Solution Approach 1:
The patent segments the operation modes into normal mode and recumbent mode based on the vertical acceleration value. When the absolute value of vertical acceleration is greater than or equal to a first threshold, the system determines recumbent mode; otherwise, it determines normal mode. This segmentation allows different switching criteria to be applied for different usage scenarios, resolving the contradiction between automation and adaptability.
Solution Approach 2:
The patent changes the detection parameters by introducing a vertical acceleration threshold for mode differentiation. In normal mode, the switching criterion is based on comparing the absolute value of horizontal acceleration with a second threshold. In recumbent mode, the criterion involves comparing the horizontal acceleration value with a third threshold. This parameter change enables accurate orientation detection across different usage scenarios.
2Device complexity
If the screen switching criterion is based solely on horizontal acceleration threshold, then the switching logic is simple, but the accuracy of orientation determination deteriorates in recumbent modes
Solution Approach 1:
The patent implements dynamic switching criteria that adapt based on the determined operation mode. The system dynamically selects between different comparison thresholds (second threshold for normal mode, third threshold for recumbent mode) based on the vertical acceleration condition. This dynamic approach maintains relatively simple logic while significantly improving orientation detection accuracy across different usage scenarios.
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 effectively increases the flexibility of screen switching by accurately determining operation modes and applying appropriate criteria, ensuring that user requirements for screen orientation are met, even when lying on one side, and provides a convenient holding area for single-handed operation in recumbent modes.
Implementation Method 1
according to a value of the acceleration of gravity in a direction vertical to the screen of the mobile terminal, determining whether the operation mode of the mobile terminal is a normal operation mode or a recumbent operation mode
Data Source
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AI summary
The present invention relates to a method for switching the touch screen of a mobile terminal between a horizontal screen and a vertical screen and a mobile terminal. The method includes: according to the value of acceleration of gravity in a direction vertical to the screen of the mobile terminal, determining whether the operation mode of the mobile terminal is a normal operation mode or a recumbent operation mode; determining, according to a determined operation mode, a criterion for switching between a horizontal screen and a vertical screen; and performing switching between a horizontal screen and a vertical screen according to the criterion. The operation mode of the mobile terminal is determined, and a criterion for the switching between a horizontal screen and a vertical screen is determined according to the operation mode, which solves the problem that the user's requirement for switching between a horizontal screen and a vertical screen cannot be met when the user lies on one side, thus increasing the applicability and flexibility of the switching between a horizontal screen and a vertical screen.