Mobile Terminal Screen Control Using Orientation Verification
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Solution Overview
Problem
Existing mobile terminal screen control methods inaccurately trigger auto-lock due to inaccurate distance sensing between the screen and the user's face, leading to inconvenient screen on/off operations during conversations.
Innovation Solution
The method involves acquiring both distance and orientation information between the screen and adjacent objects using sensors, adjusting the screen's brightness to a lower threshold when the distance is not accurately determined, and optimizing the screen's on/off logic based on comprehensive data analysis to prevent erroneous auto-lock triggers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If distance sensing is used to control screen on/off, then screen control automation is improved, but measurement precision deteriorates leading to inaccurate distance detection
Solution Approach 1:
The patent introduces orientation information as an intermediary parameter to verify the validity of distance measurements. By checking whether the terminal orientation matches the expected conversation orientation (screen facing upward), the system can identify and filter out unreliable distance readings caused by improper terminal positioning, thus resolving the contradiction between automated control and measurement accuracy
Solution Approach 2:
The system implements feedback by continuously monitoring both distance and orientation parameters, and using orientation feedback to validate distance measurements. When orientation indicates the terminal is not in proper conversation position, the system feedbacks that the distance measurement should be ignored, preventing erroneous auto-lock triggers while maintaining automation
2Ease of operation
If auto-lock function is enabled based on distance sensing, then ease of operation is improved, but reliability deteriorates due to erroneous triggers
Solution Approach 1:
The patent applies preliminary action by checking terminal orientation before executing the auto-lock function based on distance measurements. This preliminary verification ensures that distance readings are taken only when the terminal is in the correct conversation orientation, preventing premature or erroneous auto-lock triggers while preserving the ease of operation benefit
3Adaptability or versatility
If distance sensor is used for screen control, then device functionality is improved, but device complexity increases
Solution Approach 1:
The patent makes existing sensors serve multiple functions: the distance sensor not only measures distance for screen control but also triggers orientation verification, and the orientation sensor not only determines device posture but also validates distance measurement reliability. This multi-functionality approach enhances device capabilities without proportionally increasing complexity
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 ensures accurate screen control by confirming the distance information's accuracy through orientation data, avoiding erroneous auto-lock triggers and improving user experience during conversations.
Implementation Method 1
acquire energy value of a reflected signal received by a distance sensor
Implementation Method 2
collect acceleration data via a gravity sensor
Data Source
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AI summary
The present invention relates to a method for controlling a screen, comprising acquiring distance information between a screen of a mobile terminal and an adjacent object and orientation information of the mobile terminal when the mobile terminal is in a conversation state, wherein the distance information indicates a distance between the screen and the adjacent object, the orientation information indicates an orientation of the mobile terminal and determining whether the mobile terminal conforms to a preset condition in accordance with the distance information and the orientation information and adjusting brightness of the screen to a brightness lower than a preset brightness threshold when the mobile terminal conforms to the preset condition and the preset condition includes, within a preset period, the distance between the screen and the adjacent object is greater than a preset screen-on distance, and the orientation of the mobile terminal is different from a preset orientation.