Low Power Controller Gesture Detection for Off-Screen Display
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Solution Overview
Problem
Modern electronic devices consume excessive power and resources when users check notifications or access frequently used applications, as the application processor wakes up to illuminate the screen even when only minimal information is needed.
Innovation Solution
Implementing a low power controller that detects user gestures on an off-screen electronic device, allowing it to display items without waking the application processor, thereby reducing power consumption and minimizing screen illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the application processor wakes up to display notifications or frequently used applications, then the user can access information, but power consumption increases
Solution Approach 1:
The patent divides the processor functionality into two separate components: a low-power controller that handles basic gesture recognition and notification display, and a full application processor that remains in sleep mode. This segmentation allows the device to perform notification checking without activating the entire processor, thereby reducing power consumption while maintaining information accessibility.
Solution Approach 2:
The patent introduces a low-power controller as an intermediary component between the display screen and the application processor. This intermediary handles gesture detection and basic display operations, acting as a mediator that prevents direct activation of the power-intensive application processor while still enabling notification access functionality.
2Loss of information
If the display screen is completely illuminated to show notifications, then all information is visible, but power consumption increases
Solution Approach 1:
The patent implements local quality by illuminating only the specific portion of the display screen where notifications are shown, rather than illuminating the entire screen. The low-power controller activates only the necessary display regions corresponding to notification content, reducing overall power consumption while maintaining sufficient information visibility for the user.
3Loss of information
If the application processor boots up resources for notification display, then notifications can be shown, but device complexity increases
Solution Approach 1:
The patent segments the system resources into two categories: essential resources managed by the low-power controller for basic notification display, and non-essential resources that remain dormant in the application processor. This segmentation prevents the booting of unnecessary resources while maintaining core notification functionality.
Solution Approach 2:
The patent extracts the notification handling functionality from the application processor and places it in a separate low-power controller. This extraction removes the burden of resource booting from the application processor, reducing device complexity and resource activation overhead while preserving notification delivery capability.
Data Source
AI summary
A method for controlling display of at least one item in an electronic device is provided. The method includes, while a display screen of the electronic device is in an off state, detecting a gesture performed on a portion of the display screen using a low power controller and controlling, by the low power controller, to display the one or more items on the display screen in response to the detecting of the gesture. The one or more items are displayed in part of the portion of the display screen of the electronic device.