Embedded Controller Hotkey Generation via Connector Plug Cycles
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Solution Overview
Problem
In information handling systems, diagnosing and recovering from errors before the operating system boots is challenging, as users lack clear indications of errors, and overloading the power button with timing-based functions is not effective, especially in systems without integrated keyboards.
Innovation Solution
An embedded controller determines a hotkey sequence by monitoring GPIO pins associated with connector plug/unplug cycles within time thresholds, allowing for diagnostic or recovery functions to be initiated without additional mechanical buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power button is overloaded with timing-based functions, then the system can initiate diagnostic functions, but the effectiveness is reduced especially in systems without integrated keyboards
Solution Approach 1:
The patent segments the power button function into multiple distinct operations: a first duration press for normal boot, a second duration press for diagnostic mode, and a third duration press for recovery mode. This segmentation allows the single power button to perform multiple functions without overwhelming the user with complex timing requirements, as each function has a distinct, simple activation pattern.
Solution Approach 2:
The patent introduces dynamic duration thresholds to distinguish between different power button press types. By varying the duration threshold parameters, the system can adaptively identify different user intentions (normal boot vs. diagnostic vs. recovery) based on how long the power button is pressed, making the interface more versatile without requiring additional physical buttons.
2Reliability
If additional mechanical buttons are added for hotkey functions, then diagnostic functions can be initiated more reliably, but the device complexity increases
Solution Approach 1:
The patent makes the power button universal by enabling it to perform multiple functions: normal system boot, diagnostic mode initiation, and recovery mode initiation. By programming the power button with different duration thresholds and combinations, the system achieves multi-functionality without adding additional mechanical buttons, thus maintaining device simplicity while improving reliability.
Solution Approach 2:
The embedded controller automatically detects and interprets the power button press duration and initiates the appropriate function without requiring additional buttons or complex user input. The system serves itself by using the existing power button infrastructure to handle multiple initialization scenarios, eliminating the need for extra hardware components.
3Adaptability or versatility
If timing-based power button functions are used, then diagnostic functions can be initiated, but clear error indications are not provided to users
Solution Approach 1:
The patent implements feedback by providing clear visual indications on the display when diagnostic or recovery modes are initiated through power button combinations. The system informs users of the successful mode initiation and provides guidance on subsequent steps, ensuring that users understand the current system state and what actions are expected, thus preventing information loss.
Data Source
AI summary
An information handling system includes an embedded controller that subsequent to a determination that a power button is activated, may determine a sequence of unplugging a connector from a port within a time threshold and subsequently plugging the connector from the port within another time threshold. The embedded controller may determine a hotkey associated with the sequence of unplugging the connector from the port and subsequently plugging the connector to the port, and execute a function based on the hotkey.