Low Power Display Module Email Caching for Battery Conservation
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Solution Overview
Problem
Portable electronic devices face limitations in power consumption when operating without a stationary power supply, leading to reduced functionality and battery drain when running applications that require constant access to components like hard disk drives, making it inconvenient for mobile users to access services like email.
Innovation Solution
Implementing a low power mode that allows an email component to operate by monitoring for specific events, activating only necessary components for email polling and storage in a low power display module, reducing power consumption by caching emails and presenting them on a low power display during standby mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electronic device operates in full power mode with all subsystems and components running concurrently, then the device can perform multiple functions simultaneously, but the power consumption increases substantially draining the internal battery quickly
Solution Approach 1:
The patent segments the device into different power modes (full power mode and low power mode) with distinct subsystem configurations. In full power mode, all subsystems (display, disk drive, processor) operate concurrently for maximum functionality. In low power mode, only essential components remain active, reducing power consumption while maintaining basic device operation.
Solution Approach 2:
The device dynamically switches between different operational states based on power availability and user needs. The system can transition from full power mode to low power mode when battery charge levels trigger power conservation protocols, and vice versa when power is replenished or urgent functions are detected.
2Use of energy by moving object
If the electronic device enters standby mode to reduce power consumption, then the battery life is extended, but the device becomes non-functional and cannot run applications
Solution Approach 1:
The patent implements preliminary actions by pre-configuring essential components to remain active during low power mode. Critical subsystems such as the processor, display, and communication interfaces maintain minimal operational status, allowing the device to wake up quickly and resume functionality without requiring complete system restart or prolonged reactivation time.
Solution Approach 2:
The system dynamically adjusts the operational state of subsystems based on power mode transitions. When entering low power mode, the system selectively suspends non-essential components while maintaining essential functions. Upon power restoration or user interaction, the system dynamically reactivates appropriate subsystems to match the desired operational level.
3Use of energy by moving object
If the device limits application functionality in standby mode to conserve power, then battery drain is reduced, but the device becomes inconvenient for mobile users who need access to services like email
Solution Approach 1:
The patent applies preliminary action by pre-loading and caching essential application data and system configurations during low power mode operation. Critical applications such as email clients maintain cached copies of frequently accessed information, allowing users to access these services without requiring full power mode operation, thus balancing power conservation with application accessibility.
Solution Approach 2:
The system applies local quality by providing different levels of functionality to different subsystems and applications based on their power requirements. Essential applications with lower power demands (such as email) can operate with limited functionality in low power mode, while resource-intensive applications require full power mode. This localized approach to functionality preservation allows selective application access optimized for power consumption.
Data Source
AI summary
Low power email capabilities are provided for an electronic device, such as a hand-held portable computer having capability to operate an application during a low power mode. During the low power mode, portions of hardware, software, services, and/or other components of the portable computer that are not necessary for email-related operations, such as polling a server for new email, are suspended or otherwise deactivated. At least a portion of a new email is stored in a memory of a low power display module (LPDM) of the portable computer. The LPDM is provided with its own low-power processing unit, user interface, and other components to allow access to and manipulation of the stored email while other components of the portable computer remain deactivated.