Dual Controller Display Brightness Adaptation

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Solution Overview

Problem

Portable electronic devices face significant power consumption challenges due to electronic display brightness, and existing methods lack efficient control mechanisms, especially when compatibility issues arise or technologies are not implemented.

Innovation Solution

Implementing a dual-controller system where a graphics controller outputs a control signal based on graphics data, and an embedded controller interprets and combines signals from various technologies to dynamically control display brightness, ensuring efficient power management even in the absence of certain technologies or compatibility issues.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single controller is used to control display brightness, then device complexity is reduced, but power consumption control efficiency and reliability deteriorate when compatibility issues arise or technologies are not implemented

Engineering Contradiction:

Improvecontroller structureVSAvoidbrightness control reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The patent divides the brightness control function into two separate controllers: a graphics controller that generates control signals based on graphics data, and an embedded controller that receives and interprets these signals. This segmentation allows each controller to specialize in specific tasks, improving reliability while maintaining manageable complexity through clear functional separation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The embedded controller dynamically adjusts display brightness by interpreting control signals and modifying brightness parameters in real-time. This parameter change capability allows the system to adapt to different graphics content and power management requirements, resolving the contradiction between simple structure and reliable control.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If display brightness is controlled based on graphics data, then power consumption efficiency is improved, but compatibility issues arise when certain technologies are not implemented

Engineering Contradiction:

Improvedisplay power consumptionVSAvoidtechnology compatibility

Core Design Contradiction:

Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The embedded controller serves as an intermediary between the graphics controller and the display. It receives control signals based on graphics data, interprets them, and generates appropriate brightness control commands. This intermediary role ensures compatibility with different graphics controllers and display technologies while maintaining efficient power consumption control.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The embedded controller is designed to universally interpret control signals from various graphics controllers and adapt to different display technologies. This multi-functionality ensures the system can operate efficiently across different technological configurations without sacrificing power management effectiveness.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Reliability

If multiple controllers are implemented to improve reliability and efficiency, then power consumption control and reliability are improved, but device complexity increases

Engineering Contradiction:

Improvebrightness control reliabilityVSAvoidcontroller structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments control functions between two specialized controllers: the graphics controller handles signal generation based on graphics content, while the embedded controller handles signal interpretation and brightness adjustment. This segmentation improves reliability through functional specialization while keeping each controller relatively simple in structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The embedded controller merges multiple functions including signal reception, interpretation, and brightness control into a single unit. This merging reduces the overall system complexity compared to having completely separate components for each function, while still maintaining the benefits of dual-controller reliability.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS7456829B2Methods and systems to control electronic display brightness

Publication Date: 2008.11.25 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

In at least some embodiments, a system may comprise a processor and a controller coupled to the processor. The system may further comprise an electronic display coupled to the controller, wherein the controller is configured to interpret a plurality of control signals, each control signal able to dynamically control electronic display brightness without user input, and to generate an output signal to control electronic display brightness based on the interpreted control signals.