Portable Device Automatic Power-Up for Missed Alarms

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Solution Overview

Problem

Portable electronic devices often miss preset alarms or reminders when in a low-power or power-off state, as they do not automatically power up in time for scheduled events.

Innovation Solution

The device includes an internal timer and on/off circuitry that allows for automatic power-up based on user-defined settings, as well as the ability to detect and trigger power-up for upcoming time-dependent events like calendar reminders, ensuring timely notifications.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If the device automatically powers up at a preset time, then the device can save battery power during non-use periods, but preset alarms or reminders may be missed if the device is in low-power state

Engineering Contradiction:

Improvebattery power consumptionVSAvoidalarm reminder reliability

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The device checks for upcoming time-dependent events (alarms, reminders, calendar events) before entering low-power state, and adjusts the automatic power-up time to occur before the earliest such event. This preliminary checking and adjustment ensures that the device will be powered on in time to deliver any pending notifications, resolving the contradiction between energy saving and alarm reliability.

Inventive Principle:

Principle #10Preliminary action

2Loss of energy

If the device remains in power-off state to conserve battery, then energy consumption is reduced, but time-dependent events cannot be detected or triggered

Engineering Contradiction:

Improvebattery power consumptionVSAvoidevent detection timing

Core Design Contradiction:

Loss of energyVSLoss of time

Solution Approach 1:

The automatic power-up time is made dynamic rather than fixed. The system continuously monitors for time-dependent events and adjusts the power-up time accordingly - extending it when events are detected and shortening it when no events are pending. This dynamic adjustment allows the device to consume minimal power while ensuring it wakes up in time for any scheduled events.

Inventive Principle:

Principle #15Dynamics

3Device complexity

If the device uses fixed automatic on/off times, then power management is simplified, but flexibility to accommodate varying event schedules is reduced

Engineering Contradiction:

Improvepower management complexityVSAvoidevent schedule adaptability

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The device automatically adjusts its own power-up schedule based on its stored calendar events and reminders without requiring user intervention. The system services itself by monitoring its own event schedule and autonomously modifying the automatic power-up time to ensure events are not missed, maintaining simplicity while improving adaptability.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS8316253B2Automatic power-up of portable electronic device based on time-dependent event

Publication Date: 2012.11.20 MALIKIE INNOVATIONS LTD

AI summary

A method of controlling a portable electronic device includes receiving a power-down command, determining an automatic power-up date and time based on an earliest one of a next preset power-up and a next time-dependent event reminder, entering a power-down state, monitoring a date and time, and automatically powering up at the automatic power-up date and time.