CPU Mode Switching for Heat Management
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Solution Overview
Problem
Information processing devices face a tradeoff between processing speed and heat management, where enhancing CPU performance increases power consumption and heat generation, and reducing heat generation decreases processing speed.
Innovation Solution
An apparatus that switches a CPU between operation modes based on user interaction, detected use form, elapsed time, and application program type to balance performance and heat management, switching to a higher performance mode when needed and a lower heat generation mode when conditions are met.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If CPU operation performance is enhanced to achieve faster processing, then processing speed is improved, but power consumption and heat generation increase
Solution Approach 1:
The patent implements dynamic switching between first and second operation modes based on real-time detection of use forms (tablet mode, laptop mode, tent mode, stand mode). The CPU operates in high-performance second mode when placed on surfaces (laptop, tent, stand modes) and switches to low-power first mode when held in tablet mode, optimizing the balance between processing speed and heat generation according to actual usage conditions
Solution Approach 2:
The patent changes the operational parameters of the CPU by switching between different operation modes with distinct performance characteristics. The first operation mode is configured for lower power consumption and heat generation, while the second operation mode provides higher processing performance. This parameter switching allows the system to adapt to different thermal requirements based on use form detection
2Speed
If CPU operation performance is enhanced to achieve faster processing, then processing speed is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts CPU power consumption by detecting use forms and switching between operation modes. When the device is in tablet mode (held in hands), it switches to first operation mode with lower power consumption. When placed on surfaces (laptop, tent, stand modes), it switches to second operation mode with higher processing performance, optimizing energy usage according to thermal dissipation conditions
Solution Approach 2:
The patent implements parameter changes in CPU operation by switching between first and second operation modes that have different power consumption characteristics. This allows the system to reduce power consumption during portable use while maintaining high performance when thermal conditions permit, directly addressing the power consumption vs. processing speed tradeoff
3Temperature
If operation mode is selected to reduce heat generation, then heat generation is reduced, but operation performance and processing speed decrease
Solution Approach 1:
The patent dynamically switches between first and second operation modes based on detected use forms. When the device is in laptop mode, tent mode, or stand mode (where heat dissipation is better), it operates in second mode with higher performance. When in tablet mode (where heat dissipation is limited), it switches to first mode with lower heat generation, thus dynamically optimizing the balance between heat management and productivity
Solution Approach 2:
The system changes operational parameters by switching between operation modes with different thermal and performance characteristics. This allows the CPU to operate at high performance when thermal conditions allow (reducing the heat-performance tradeoff) while maintaining acceptable performance when heat generation must be limited, effectively resolving the contradiction between heat generation and operation performance
Data Source
AI summary
An apparatus to switch a central processing unit between operational modes includes, in one embodiment, a central processing unit (“CPU”) having at least a first operation mode and a second operation mode, where the second operation mode is a higher performance operation mode than the first operation mode. The apparatus also includes a switching unit that switches a state of the CPU to the second operation mode in response to starting one of an operating system or an application program based on a user operation in a state in which the first operation mode is set, and switches the state of the CPU to the first operation mode in response to a determination that a condition is met.