Low-Power Input Detection Circuit for Fast Power-On
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Solution Overview
Problem
Conventional low-power modes in information handling devices continue to drain battery life by maintaining active components for input detection and system checks, requiring significant power usage even when the device is inactive.
Innovation Solution
A simplified input detection system that uses minimal power to detect physical user inputs, such as force at the input mechanism, to determine if the user intends to power on the device, allowing for reduced power consumption and quicker access when needed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If active components are maintained for input detection and system checks, then the device can quickly respond to user inputs, but battery life is reduced due to continuous power consumption
Solution Approach 1:
The system is segmented into two operational states: a low-power state where minimal components are active, and a full-power state where all components are operational. The input detection system serves as a bridge between these states, allowing the device to remain in low-power mode until user input is detected, at which point it transitions to the full-power state to execute the desired action.
Solution Approach 2:
The input detection system performs preliminary action by continuously monitoring for user inputs even when the device is in a low-power state. This allows the device to quickly transition to a responsive state upon detecting input, without requiring all system components to be continuously active, thereby reducing overall power consumption while maintaining quick response capability.
2Use of energy by moving object
If components are deactivated to extend battery life, then power consumption is reduced, but the device cannot respond to power-on requests
Solution Approach 1:
The input detection system is extracted as a separate, minimal-power subsystem that operates independently from the main device components. This extracted detection system continues to monitor for user inputs even when all other device components are deactivated, enabling the device to respond to power-on requests without requiring the main system to remain active.
3Use of energy by moving object
If a simplified input detection system is used, then power consumption is reduced, but the ability to distinguish between intended inputs and accidental activations may be compromised
Solution Approach 1:
The system dynamically adjusts its operational state based on detected inputs. When inputs are detected, the system transitions from a static low-power state to an active state where full processing and validation can occur. This dynamic approach allows the simplified detection system to maintain reliability by enabling comprehensive input validation only when necessary, rather than continuously.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively powers on the device while in a low-power state with reduced power usage, extending battery life by deactivating unnecessary components and using a low-power input detection circuit, distinguishing between intended power-on inputs and accidental activations.
Implementation Method 1
detecting a force at the input mechanism
Data Source
AI summary
One embodiment provides a method, the method including: detecting, at an information handling device utilizing a input detection system and while the information handling device is in a low power state, a physical user input at an input mechanism of the information handling device, wherein the detecting comprises detecting a force at the input mechanism; determining, utilizing the input detection system, the physical user input comprises a request to power-on the information handling device; and powering on the information handling device. Other aspects are claimed and described.