Adaptive Display Refresh Periods for Event-Responsive Processing
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Solution Overview
Problem
Electronic devices face challenges in quickly processing events requiring high performance when operating at a low frame rate, leading to inefficient battery power usage and slow processing due to synchronized processor operation.
Innovation Solution
The device includes a touch-sensitive display and processor that measures processor utilization rates at different refresh periods, temporarily releasing synchronization during events requiring quick processing to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the processor operation speed is synchronized with a low frame rate, then battery power efficiency is improved, but processing speed for events requiring quick processing deteriorates
Solution Approach 1:
The system dynamically adjusts the processor operation speed based on real-time conditions. When a high-priority event is detected, the processor temporarily increases its operation speed above the synchronized frame rate, and when no such events occur, it maintains the lower synchronized speed for power efficiency. This dynamic adjustment resolves the contradiction between power efficiency and processing speed.
Solution Approach 2:
The system changes the operational parameters of the processor based on event priority. By detecting high-priority events, the system modifies the processor's clock frequency or operation mode from a low-power state to a high-performance state, enabling quick processing when needed while maintaining power efficiency during normal operation.
2Loss of energy
If a low frame rate is configured, then power consumption is reduced, but processing performance for events requiring quick processing deteriorates
Solution Approach 1:
The system implements periodic monitoring of event priority levels and adjusts processor performance accordingly. Instead of maintaining constant high performance, the system periodically checks for high-priority events and temporarily boosts processing performance only when necessary, thereby reducing overall power consumption while maintaining responsiveness to critical events.
Solution Approach 2:
The system preliminarily identifies and prioritizes events before processing them. By detecting and flagging high-priority events in advance, the system can prepare to increase processing performance only when such events occur, rather than maintaining high performance continuously. This preliminary action enables efficient power management while ensuring quick response to critical events.
Data Source
AI summary
Provided is an electronic device comprising a touch-sensitive display, a processor operatively connected to the display, and a memory operatively connected to the processor. The memory may store instructions causing, when executed, the processor to display visual information on the display on the basis of a first refresh period, and measure a utilization percentage of the processor on the basis of a first measurement period, if there is no change in the visual information of the display for a given time, display the visual information on the display on the basis of a second refresh period longer than the first refresh period, and measure the utilization percentage of the processor on the basis of a second measurement period longer than the first measurement period, and while the visual information is being displayed on the display on the basis of the second refresh period and the utilization percentage of the processor is being measured on the basis of the second measurement period, if a specific event related to performance of the processor occurs in the electronic device, measure the utilization percentage of the processor on the basis of the first measurement period.


