Adaptive Power Management via USB Pin State Detection
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Solution Overview
Problem
Existing electronic devices face challenges in recognizing external apparatus connections without additional hardware components and efficiently managing power, leading to increased manufacturing costs and difficulty in differentiating various external devices.
Innovation Solution
An electronic device with a processor that determines connection states and transmits information through USB pins, allowing power management between external devices without additional hardware, using USB interfaces for communication and power transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If additional hardware components (switching circuit) are added to recognize external device connections, then connection recognition capability is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces the mechanical/electrical switching circuit with a software-based solution. The processor determines connection states by analyzing voltage changes on identification terminals through software algorithms, eliminating the need for physical switching components. This substitution of hardware with software processing resolves the contradiction by maintaining connection recognition capability while reducing manufacturing costs.
Solution Approach 2:
The patent uses voltage signal copying and analysis instead of direct hardware switching. By monitoring voltage levels on existing identification terminals and interpreting them through software, the system creates a virtual representation of connection states without requiring additional physical components, thereby reducing manufacturing complexity while preserving detection capability.
2Difficulty of detecting and measuring
If voltage of identification terminal is monitored to recognize external devices, then connection detection is achieved, but differentiation of various external apparatuses becomes difficult
Solution Approach 1:
The patent segments the connection detection process into multiple independent analysis dimensions. Instead of relying on a single voltage measurement, the processor analyzes multiple identification terminals separately and combines their information. This segmentation allows the system to detect connections while maintaining the ability to differentiate various device types through pattern recognition across multiple segmented data points.
Solution Approach 2:
The patent adds an informational dimension to the detection process by transmitting state information through USB data pins. This transforms the problem from a single-dimensional voltage analysis to a multi-dimensional approach combining voltage monitoring with digital communication, enabling both connection detection and device differentiation simultaneously without hardware conflicts.
3Device complexity
If power supply mode is not adaptively managed, then system simplicity is maintained, but power efficiency decreases
Solution Approach 1:
The patent implements dynamic power management where the power supply mode automatically adjusts based on real-time connection states. The processor continuously monitors identification terminal voltages and adaptively switches between different power supply configurations. This dynamic adaptation optimizes power efficiency without requiring complex manual intervention or predetermined configurations, resolving the contradiction between simplicity and efficiency through intelligent automation.
Solution Approach 2:
The patent establishes a feedback loop where connection detection information feeds into power management decisions. The processor uses real-time voltage measurements from identification terminals to determine appropriate power supply modes, creating a closed-loop system that automatically optimizes power efficiency based on actual device states. This feedback mechanism enables adaptive power management while maintaining system simplicity through automated control.
Data Source
AI summary
Various embodiments of the present disclosure relate to an adaptive power management method and apparatus. The electronic device includes: a first interface for communicating with a first external electronic device functionally connected to the electronic device; a second interface for receiving power supplied by a second external electronic device; and a processor, wherein the processor determines whether the electronic device is electrically connected to the second external electronic device through the second interface, generates state information corresponding to a result of the determination, and transmits the state information to the first external electronic device through the first interface. Furthermore, various embodiments are possible.