Persistent Display for Mobile Device Data Access After Power Loss

Solution Overview

Problem

Mobile devices often become inaccessible when their battery charge level falls below a certain threshold, preventing users from accessing important data stored on them.

Innovation Solution

A method and system that determine the battery charge level of a mobile device and, when it falls below a minimum threshold, select and output a prioritized data object on a persistent display device, allowing the data to remain visible even after the device powers off.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If the mobile device is powered off to conserve energy, then energy consumption is reduced, but access to important data becomes impossible

Engineering Contradiction:

Improveenergy consumptionVSAvoidaccess to important data

Core Design Contradiction:

Use of energy by moving objectVSLoss of information

Solution Approach 1:

The system performs preliminary action by detecting low battery conditions and proactively displaying critical data on the persistent display before the device powers off. This allows users to access important information (flight reservations, hotel bookings, etc.) even after the mobile device shuts down to conserve energy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The persistent display acts as an intermediary between the mobile device and the user when the device is powered off. It maintains visibility of critical data without requiring the mobile device to remain powered on, thus mediating between energy conservation needs and data accessibility requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Loss of information

If the mobile device remains powered on to access data, then data accessibility is maintained, but energy consumption increases

Engineering Contradiction:

Improvedata accessibilityVSAvoidenergy consumption

Core Design Contradiction:

Loss of informationVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary action by detecting low battery conditions and proactively displaying critical data on the persistent display before the device powers off. This allows users to access important information (flight reservations, hotel bookings, etc.) even after the mobile device shuts down to conserve energy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The persistent display acts as an intermediary between the mobile device and the user when the device is powered off. It maintains visibility of critical data without requiring the mobile device to remain powered on, thus mediating between energy conservation needs and data accessibility requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Loss of information

If critical data is displayed before power loss, then data accessibility after power off is enabled, but device complexity increases

Engineering Contradiction:

Improvedata accessibility after power lossVSAvoiddevice complexity

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The persistent display serves multiple functions: it acts as a normal display during device operation and as a standalone data display after power loss. This multi-functionality enables post-power-off data accessibility without adding separate dedicated hardware systems.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The persistent display acts as an intermediary between the mobile device and the user when the device is powered off. It maintains visibility of critical data without requiring the mobile device to remain powered on, thus mediating between energy conservation needs and data accessibility requirements.

Inventive Principle:

Principle #24Intermediary (Mediator)

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

Ensures users can access critical information, such as flight reservations or one-time passcodes, even when the mobile device loses power, by using a persistent display that only requires power for refresh and is exemplified by an optically rewritable liquid crystal display.

Implementation Method 1

an optically rewritable liquid crystal display

Methodology Applied

Scientific EffectOptically rewritable liquid crystal display: Liquid Crystals

Data Source

PatentUS9959806B1Outputting data for display before a device becomes inaccessible

Publication Date: 2018.05.01 INTERNATIONAL BUSINESS MACHINE CORPORATION

AI summary

Systems, methods, and computer program products to perform an operation comprising determining a charge level of a battery of a mobile device, and responsive to determining that the charge level is below a minimum threshold, selecting a first data object from a plurality of data objects stored on the mobile device based on predefined criteria, outputting the first data object on a persistent display device of the mobile device, and powering off the mobile device, wherein the first data object remains visible on the persistent display after the mobile device powers off.