Storytelling Light Projection Synced With Recorded Audio

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Solution Overview

Problem

Existing devices lack the ability to project light patterns synchronized with pre-recorded audio stories, allowing users to select characters and environments, and enable recording and playback of personalized stories with synchronized light and sound effects.

Innovation Solution

A device with a housing, projector domes, light-emitting members, and an audio speaker, controlled by a central processing unit, projects synchronized light patterns and plays audio stories, allowing users to select characters and environments, and records and plays personalized stories with timed light changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If light projection and audio playback functions are combined in a single device, then the storytelling experience becomes more immersive and synchronized, but the device complexity increases

Engineering Contradiction:
Improvesynchronized storytelling experienceVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines light projection members and audio playback members into a single integrated device housing. The central processing unit coordinates both functions, merging what were previously separate devices into one unified storytelling system that projects synchronized light and sound.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The device is designed to perform multiple functions: projecting light patterns, playing audio stories, and synchronizing both functions through central processing unit control. This multi-functional design allows a single device to provide comprehensive storytelling experiences.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple light emitting members are used to project different patterns, then the visual storytelling capability improves, but the device complexity and control difficulty increase

Engineering Contradiction:
Improvelight pattern projectionVSAvoidlight control system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The light projection system is divided into multiple independent light emitting members, each capable of producing different patterns. Each light member can be controlled independently or in coordination with others, allowing diverse visual storytelling patterns while maintaining manageable system architecture.

Inventive Principle:
Principle #1Segmentation

3Adaptability or versatility

If light synchronization with audio playback is implemented, then the storytelling immersion is enhanced, but the control precision requirements increase

Engineering Contradiction:
Improvesynchronized light and soundVSAvoidtiming synchronization
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The central processing unit monitors and coordinates both audio playback and light projection in real-time, using feedback mechanisms to ensure precise synchronization. The system adjusts timing based on the coordinated operation of both functions to maintain accurate alignment between sound and light elements.

Inventive Principle:
Principle #23Feedback

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

Creates an immersive experience by synchronizing light and sound with story actions, providing an engaging and interactive storytelling experience for children.

Implementation Method 1

a plurality of light emitting members that emit light from within the housing

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentEP4406633B1Storyteller device having synchronized light projection and audio playback of recorded stories
Publication Date: 2026.04.22 BTL DIFFUSION SARL
  • EP4406633B1 patent drawingFigure 1
  • EP4406633B1 patent drawingFigure 2
  • EP4406633B1 patent drawingFigure 3

AI summary

A children's toy, and electronic device (100), plays audio files and projects differently-colored light patterns onto a surface (104) in a room (106) in which the device (100) is placed. The light patterns are projected in synchronization with the playback of such audio files. The device (100) allows users to select from different nature sounds, different melodies, or multiple pre-recorded children's stories. The device (100) also enables users to record their own stories for each of several environments, and playback their custom stories together with projections of light in each environment.