Tagged Audio Playlist Sync for Screen-Free Child Listening

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Solution Overview

Problem

There is a lack of systems that allow infants and young children to easily select and update audio content without using parents' digital video devices, limiting their auditory stimulation and potentially increasing visual exposure, which can hinder their growth and development.

Innovation Solution

An audio output system comprising a key device, a main device, a server, and a user device, where the user device can update a playlist on the server, and the main device synchronizes this update with its own playlist using communication tags and messaging protocols, allowing easy playlist changes without direct operation of the main device.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If infants and young children use parents' digital video devices to select audio content, then they can access various sounds, but their visual exposure increases which can hinder their growth and development

Engineering Contradiction:

Improveaccess to audio contentVSAvoidvisual exposure

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical/visual interaction of digital video devices with an acoustic field-based system. The key device uses communication tags and acoustic fields to enable infants and young children to select and update audio content through auditory stimulation alone, eliminating the need for visual screens and their associated harmful effects while maintaining full access to diverse audio content.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If a separate operation of the main device is required to update the playlist, then the main device can be controlled precisely, but the operating complexity increases for infants and young children

Engineering Contradiction:

Improveplaylist update controlVSAvoidplaylist update operation

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The main device automatically updates its playlist by comparing it with the updated second playlist from the server, without requiring separate manual operation. The system performs self-service playlist synchronization, eliminating complex user operations while ensuring reliable updates through automated comparison and integration of audio content.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The server acts as an intermediary between the user device and the main device. The user device updates the second playlist on the server, and the server automatically transmits the updated playlist to the main device, which then synchronizes its first playlist accordingly. This intermediary mechanism simplifies the user interface while maintaining precise control over playlist updates.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250355615A1Audio output system and audio content output device

Publication Date: 2025.11.20 KOKOZI CO LTD

AI summary

An audio output system comprising: a key device including a communication tag; a main device configured to store a first playlist and to output audio content related to the communication tag based on the first playlist; a server configured to store a second playlist and to manage the first playlist based on the second playlist; and a user device configured to update the second playlist by accessing the second playlist, wherein if the second playlist is updated, the server provides a playlist update message to the main device, and wherein the main device updates the first playlist by comparing the first playlist and the updated second playlist with each other.