Dynamic Thermal Thresholds for Portable Computing Devices
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Solution Overview
Problem
Portable computing devices (PCDs) face performance limitations due to fixed and preset temperature thresholds based on worst-case scenarios, which can unnecessarily restrict their functionality in varying use cases, leading to suboptimal user experience and quality of service.
Innovation Solution
Implement a system that recognizes different use cases and adjusts temperature thresholds accordingly, using device definitions to optimize thermal management by dynamically scaling voltage and frequency, allowing for increased processing performance without overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed temperature thresholds based on worst-case scenarios are used, then device safety is ensured, but processing performance is unnecessarily restricted
Solution Approach 1:
The patent implements dynamic temperature thresholds that adapt based on detected use cases. The system transitions from fixed worst-case thresholds to variable thresholds that are optimized for each specific use case, allowing processing performance to increase when safety conditions permit while maintaining reliability through continuous monitoring and adjustment.
Solution Approach 2:
The system changes the temperature parameter dynamically based on use case detection. Different use cases have different acceptable temperature ranges, and the system adjusts the temperature threshold parameter accordingly, allowing higher temperatures for brief-contact scenarios and lower thresholds for prolonged-contact scenarios, thereby optimizing performance while ensuring safety.
2Temperature
If thermal mitigation techniques are applied to reduce thermal energy generation, then temperature limits are maintained, but device functionality is degraded
Solution Approach 1:
The system dynamically adjusts whether thermal mitigation techniques are applied based on the detected use case. Instead of continuously applying mitigation that degrades functionality, the system selectively applies thermal management only when necessary to maintain temperature limits, preserving full device functionality in scenarios where temperature constraints are not critical.
Solution Approach 2:
The system uses feedback from use case detection to control the application of thermal mitigation techniques. By monitoring device state and external conditions, the system determines when thermal management is necessary and adjusts mitigation intensity accordingly, avoiding unnecessary functionality degradation while ensuring temperature compliance when required.
3Device complexity
If a single temperature threshold is used for all use cases, then implementation is simple, but quality of service varies across different usage scenarios
Solution Approach 1:
The patent implements a dynamic multi-threshold system that adapts to different use cases. Rather than using a single static threshold, the system maintains multiple temperature thresholds corresponding to different use cases and dynamically selects the appropriate threshold based on detected device state and external conditions, thereby achieving high adaptability while managing complexity through structured decision logic.
Solution Approach 2:
The thermal management system is designed to handle multiple use cases through a unified multi-threshold framework. The same system infrastructure supports different temperature thresholds for different scenarios, making the system universally applicable across various usage conditions while maintaining optimized quality of service for each specific case.
Data Source
AI summary
Various embodiments of methods and systems for optimizing processing performance in a multi-functional portable computing device (“PCD”) are disclosed. Depending on how the PCD is being used, the temperature limit associated with the touch temperature of the PCD may be variable. As such, a preset and fixed touch temperature limit based on a “worst use case” scenario can unnecessarily limit the quality of service (“QoS”) provided to a user under different use case scenarios. Accordingly, embodiments of the systems and methods define and recognize different device definitions for the PCD which are each associated with certain use cases and each dictate different temperature thresholds or limits subject to which the PCD may run.