Sleep Mode Control via Selective Power Segmentation

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Solution Overview

Problem

Portable electronic devices enter sleep mode to conserve battery life, but users face inconvenience in returning to previous programs due to the need for multiple manipulations, especially when applications are operational or specific locations are reached.

Innovation Solution

The method involves determining if a sleep mode entry occurs, identifying operational applications, and selectively restricting sleep mode entry by maintaining power supply to touch detection modules while cutting off power to display modules or lowering display brightness, based on the application and current location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the electronic device enters sleep mode to conserve battery life, then power consumption is reduced, but users need to perform multiple manipulations to return to previous programs

Engineering Contradiction:

Improvepower consumptionVSAvoiduser manipulation

Core Design Contradiction:

Use of energy by moving objectVSEase of operation

Solution Approach 1:

The system performs preliminary identification of operational applications before entering sleep mode, and pre-configures the wake-up behavior based on this identification. This allows the device to automatically return to the correct application state without requiring user manipulation, thus resolving the contradiction between power savings and ease of operation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The electronic device automatically manages its own wake-up process by identifying which applications were operational during sleep mode and autonomously returning to those states. This self-service mechanism eliminates the need for user intervention while maintaining power efficiency.

Inventive Principle:

Principle #25Self-service

2Use of energy by moving object

If power supply is completely cut off during sleep mode, then battery life is extended, but critical functions like touch detection cannot remain active

Engineering Contradiction:

Improvebattery lifeVSAvoidcritical function availability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The power management system segments the device into different power states: critical components (touch detection module) remain powered while non-critical components (display module) are powered down during sleep mode. This segmentation allows the device to extend battery life while maintaining critical functions operational.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different parts of the device are assigned different power qualities during sleep mode. The touch detection module maintains full power supply for reliability, while the display module receives reduced or no power supply to conserve energy. This local differentiation resolves the contradiction between battery life extension and critical function availability.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS9766690B2Method for controlling a sleep mode and electronic device thereof

Publication Date: 2017.09.19 SAMSUNG ELECTRONICS CO LTD

AI summary

A method and an apparatus for controlling a sleep mode in an electronic device are provided. The method for controlling the sleep mode in the electronic device includes determining whether a sleep mode entry occurs, identifying an application running when the sleep mode entry occurs, and selectively restricting the sleep mode entry based on the identified application.