Dual Processor Display Control for Power Saving
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Solution Overview
Problem
Electronic devices face unnecessary display activation when flipped over or placed in bags, leading to increased power consumption due to the inability to accurately detect these states using existing methods.
Innovation Solution
The implementation of a method and electronic device configuration that utilizes multiple sensors to monitor the device's state and user actions, allowing for controlled display activation and deactivation based on specific conditions, such as proximity and posture, to minimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the display is deactivated based on simple time-based inactivity detection, then power consumption is reduced, but the display may be unnecessarily deactivated when the device is flipped or placed in a bag
Solution Approach 1:
The patent segments the display control function into two independent modules: a first processor that analyzes sensor data (accelerometer, gyroscope, proximity sensor) to determine device state, and a second processor that controls display activation based on the first processor's analysis. This segmentation allows the first processor to accurately interpret sensor data to distinguish between intentional non-use and accidental orientations, while the second processor executes the display control, thereby resolving the contradiction between power saving and accurate activation detection.
Solution Approach 2:
The first processor acts as an intermediary between the sensor unit and the second processor. It receives raw sensor data, analyzes device orientation and movement patterns, determines whether the device is intentionally not being used or accidentally oriented, and provides this determination to the second processor. This intermediary layer enables accurate context understanding, preventing unnecessary display deactivation while still achieving power savings through intelligent control.
2Reliability
If multiple sensors are used to accurately detect device state, then display activation accuracy is improved, but device complexity increases
Solution Approach 1:
The first processor is designed to handle multiple sensor types (accelerometer, gyroscope, proximity sensor) and perform multiple functions: analyzing device orientation, detecting movement patterns, determining user intent, and controlling display activation. By making the first processor universal and multi-functional, the patent reduces the need for separate dedicated circuits for each sensor, thereby managing complexity while maintaining high display activation accuracy through comprehensive sensor analysis.
3Ease of operation
If the display remains active during non-use scenarios, then user convenience is maintained, but unnecessary power consumption increases
Solution Approach 1:
The system implements feedback by continuously monitoring sensor data and analyzing device orientation and movement patterns. The first processor receives real-time sensor input, processes this information to determine whether the device is intentionally not being used or accidentally oriented, and provides feedback to the second processor to appropriately control display activation. This feedback mechanism ensures the display remains active when needed for user convenience while deactivating only when truly unnecessary, optimizing power consumption.
Data Source
AI summary
An electronic device and its operating method are provided. The method includes, while a display displays content, identifying, by a first processor, state information of the electronic device using a first sensor based on a first cycle, determining, by the first processor, whether the state information is maintained using the first sensor based on a second cycle, when determining that the state information is maintained based on the second cycle, providing, by the first processor to a second processor, first notification information corresponding to the determination, and changing, by the second processor, a state of the display in response to the first notification information.