Foldable Display Angle Measurement Using Multi-Sensor Fusion
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Solution Overview
Problem
There is a need for measuring the angle between displays of electronic devices that output at least two screens to execute specific functions or applications based on the angle between the displays.
Innovation Solution
The electronic device is equipped with sensors installed in multiple displays, allowing the application processor to measure the angle using acceleration sensors and quaternion vectors, enabling various functions to be provided to the user based on the measured angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are installed in multiple displays to measure the angle between displays, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent divides the sensing function across multiple displays by installing separate sensors in each display module. This segmentation allows each sensor to independently measure local orientation data, which are then combined to calculate the relative angle between displays, thereby improving measurement precision while distributing system complexity across modular components
Solution Approach 2:
The patent employs multi-functional sensors that can detect both absolute orientation relative to gravity and relative orientation between displays. These sensors serve multiple purposes: measuring individual display angles, calculating relative angles between connected displays, and providing data for various applications such as image processing and 3D effect generation, thus reducing overall system complexity through component multi-functionality
2Reliability
If multiple sensors are used to measure angle between displays, then reliability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent implements feedback mechanisms where the processor continuously receives orientation data from multiple sensors, calculates the actual angle between displays, and uses this information to compensate for installation errors. The system can detect deviations from expected sensor readings and adjust calculations accordingly, maintaining measurement reliability even when manufacturing precision varies
Solution Approach 2:
The patent dynamically adjusts measurement parameters and calculation methods based on sensor data quality and display configuration. By changing the mathematical models used to interpret sensor readings according to the specific installation scenario, the system maintains reliable angle measurements across varying manufacturing precision levels without requiring extremely tight tolerances
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
Enables the execution of functions such as adjusting image size, video play speed, providing a 3D stereo effect, obtaining wide-angle images, and managing content display by accurately measuring and utilizing the angle between the displays.
Implementation Method 1
measure a first angle between the first housing part and a ground, to measure a second angle between the second housing part and the ground
Implementation Method 2
measuring, by using a first sensor and a second sensor, a first angle between the first housing part and a ground, and a second angle between the second housing part and the ground
Data Source
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AI summary
An electronic device is provided. The electronic device includes a foldable housing including a first housing part that includes a first surface and a second surface facing opposite to the first surface, a second housing part including a first surface that faces the first surface of the first housing part when the housing is folded in a first direction and a second surface that faces the second surface of the first housing part when the housing is folded in a second direction. The electronic device includes a first display, a second display disposed, a first sensor disposed in the first housing part, a second sensor disposed in the second housing part, and a processor that is configured to identify an angle between the first housing part and the second housing part using the first sensor and the second sensor and execute at least one action of the electronic device based on the identified angle.