Removable Memory Device Metadata Filtering for Legacy Player Compatibility
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Solution Overview
Problem
Old multimedia reproduction apparatuses struggle to handle large-capacity storage and modern file systems, lack computational power for playlist management, and cannot distinguish between content for reproduction and non-reproduction, making it difficult to play favorite multimedia contents.
Innovation Solution
A system using a removable memory device that marks multimedia contents with metadata, allowing older apparatuses to automatically select favorite contents by analyzing filename extensions or ID3 tags, enabling reproduction on various devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If large-capacity storage units with modern file systems are used, then storage capacity increases, but compatibility with older reproduction apparatuses deteriorates
Solution Approach 1:
The patent segments the large-capacity storage into two logical parts: a first portion formatted with an older file system compatible with legacy apparatuses, and a second portion formatted with a modern file system for high-capacity storage. This allows older reproduction apparatuses to access the first portion while newer apparatuses can utilize both portions, thereby resolving the contradiction between storage capacity and compatibility.
2Ease of operation
If playlist management and indexing features are added, then content selection capability improves, but computational power requirements increase
Solution Approach 1:
The patent implements preliminary action by pre-generating and storing index data and playlist information in the storage unit before reproduction. Instead of performing complex computational tasks during playback, the system prepares metadata, hash codes, and content descriptors in advance, allowing older apparatuses with limited computational power to simply read and display pre-computed information rather than perform intensive calculations in real-time.
3Device complexity
If manual content filtering is required, then device complexity decreases, but ease of operation deteriorates
Solution Approach 1:
The patent applies self-service by enabling automatic content filtering and playlist generation through metadata analysis. The reproduction apparatus automatically reads metadata tags (such as genre, artist, album information) embedded in multimedia files and autonomously organizes content into playlists without requiring manual user intervention. This eliminates the need for complex manual filtering interfaces while significantly improving ease of operation.
Data Source
AI summary
A system, a removable memory device and a method for fruition of multimedia contents are provided, wherein the user can instantly mark a multimedia content as favourite by pressing a button while that content is in reproduction. The archive containing the favourite multimedia contents, along with non-favourite contents, is updated immediately, so that said archive, which is stored in a removable memory device, can be moved from one reproduction apparatus to another. One variant of the invention allows also older-generation reproduction apparatuses, which cannot handle playlists and metadata, to reproduce favourite multimedia contents while excluding those that have not been marked as such.