Information Handling System Power-On With Finger Proximity Detection

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Solution Overview

Problem

Existing information handling systems require manual depression of a power button for power-on, leading to increased booting times due to the need for subsequent firmware load and BIOS execution.

Innovation Solution

Implementing a detection element to sense the proximity of a user's finger to a power button, enabling an embedded controller to execute firmware load code before actual button depression, thereby reducing booting time by initializing power-on processes in advance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If manual power button depression is required for power-on, then system reliability is ensured through user confirmation, but booting time is increased due to sequential firmware load and BIOS execution

Engineering Contradiction:
Improvebooting timeVSAvoidpower-on process complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The embedded controller executes the firmware load code in advance, before the user actually presses the power button. When the detection element senses the user's finger approaching the power button area, the EC begins loading firmware and preparing BIOS execution, so that when the button is pressed, the system is already partially initialized, significantly reducing booting time

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The detection element serves as an intermediary between the user and the power button. It detects the user's intent to power on the system by sensing finger proximity, and triggers the embedded controller to initiate preliminary power-on operations, bridging the gap between user intention and actual button press

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If firmware load code is executed before power button depression, then booting time is reduced, but system complexity increases due to additional detection elements and embedded controller operations

Engineering Contradiction:
Improvepower-on speedVSAvoidsystem architecture complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The embedded controller autonomously monitors the detection element and automatically initiates firmware loading when finger proximity is detected, without requiring additional user input or complex control logic. The system serves itself by detecting its own power-on intent and preparing accordingly

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The mechanical power button press is supplemented by an electronic detection element that senses finger proximity through electrical or capacitive fields, replacing or augmenting the purely mechanical interaction with an electronic sensing mechanism that can trigger automated responses

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Facilitates faster power-on by executing firmware load code and BIOS operations in DC mode without additional user input, decreasing booting time and enhancing efficiency.

Implementation Method 1

detecting a presence of a finger of a user of the information handling system within a threshold distance of a detection element

Methodology Applied
Scientific EffectCapacitive sensing: Capacitance

Data Source

PatentUS12461754B2Managing power-on at an information handling system
Publication Date: 2025.11.04 DELL PROD LP
  • US12461754B2 patent drawing
  • US12461754B2 patent drawing
  • US12461754B2 patent drawing

AI summary

Managing power-on at an information handling system, including detecting a presence of a finger of a user of the information handling system within a threshold distance of a detection element of the information handling system; in response to detecting the presence of the finger of the user of the information handling system within the threshold distance of the detection element of the information handling system: enabling an embedded controller of the information handling system; after enabling the embedded controller, executing, by the embedded controller, a firmware load code at the information handling system; after executing the firmware load code at the information handling system, receiving user input indicating depression of a mechanical power button of the information handling system; and in response to the user input and based on execution of the firmware load code, powering-on the information handling system.