Human Interface Device Lighting Modes

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Solution Overview

Problem

Existing human interface devices, such as computer keyboards, require users to minimize or close applications to manually switch lighting modes, disrupting the user experience, especially during activities like gaming.

Innovation Solution

A system and method that automatically switch lighting modes on human interface devices based on factors such as key frequency, application type, and user actions, using a machine learning model to determine the appropriate lighting mode that reflects the user's mood.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual lighting mode switching is implemented, then user control over lighting is improved, but user experience is disrupted and workflow is interrupted

Engineering Contradiction:

Improveuser control over lightingVSAvoidworkflow continuity

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The lighting mode changes automatically based on detected user mood and activity context, eliminating the need for manual user intervention. The system monitors keyboard usage patterns, application type, and other factors to autonomously select and switch lighting modes, thereby maintaining workflow continuity while still responding to user needs.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system continuously monitors user behavior patterns, key press frequency, application type, and other contextual factors to detect user mood and activity level. This feedback loop enables the lighting system to adapt dynamically to changing user states without requiring explicit user commands, thus improving both ease of operation and productivity.

Inventive Principle:

Principle #23Feedback

2Productivity

If automatic lighting mode switching is implemented, then workflow continuity is improved, but system complexity increases

Engineering Contradiction:

Improveworkflow continuityVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The system divides the complex task of lighting control into separate functional modules: mood detection module, activity detection module, lighting mode selection module, and lighting execution module. Each module handles a specific aspect of the control logic, making the overall system more manageable and easier to implement despite the increased functionality.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system changes operational parameters such as key press frequency thresholds, detection time windows, and lighting intensity levels based on detected user mood and activity. By adjusting these parameters dynamically rather than using fixed complex logic, the system achieves adaptive behavior with relatively simple control mechanisms.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12271533B2Human interface devices with lighting modes

Publication Date: 2025.04.08 HEWLETT PACKARD DEVELOPMENT COMPANY LP

AI summary

Changing a lighting mode for a human interface device is described herein. A first lighting mode can be initiated for a human interface device. Keys on the human interface device can be selected over a period of time at a frequency that is within a defined range. A second lighting mode for the human interface device can be identified based in part on the frequency being within the defined range. The first lighting mode and the second lighting mode can define a lighting scheme for light sources in the human interface device that reflect a user mood. The first lighting mode can be switched to the second lighting mode.