Information Recording Medium Identification Segmentation
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Solution Overview
Problem
Current recording formats for information recording mediums do not allow for effective editing and creation processes, particularly in preventing users from altering album contents distributed electronically, while also enabling deletion of song information during transfer to other devices for playback.
Innovation Solution
Incorporating identification information on the recording medium to distinguish between album contents distributed electronically and user-edited content, allowing for appropriate editing restrictions and enabling the association of still picture information with song information for display during playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If identification information is added to distinguish album content from user-edited content, then copyright management and editing control are improved, but device complexity and recording medium structure become more complex
Solution Approach 1:
The patent segments the recording medium structure into distinct areas: a first area for storing identification information (album content markers) and a second area for storing actual content data (song information, still pictures). This segmentation allows the complex copyright management function to be separated from the content storage function, improving reliability without proportionally increasing overall complexity.
Solution Approach 2:
The identification information acts as an intermediary element between the album content and the user's editing control. By introducing this intermediary marker system, the patent enables reliable copyright management while maintaining a relatively simple user interface and editing process, as the intermediary handles the complex distinction automatically.
2Reliability
If editing restrictions are imposed on album content, then copyright protection is improved, but user flexibility and ease of operation deteriorate
Solution Approach 1:
The patent applies different quality characteristics to different parts of the content. Album content (marked with identification information) has restricted editing quality to protect copyright, while user-created playlists and transferred content have full editing quality. This local differentiation allows copyright protection without unnecessarily restricting all user operations.
Solution Approach 2:
The editing permissions are dynamic rather than static. The system automatically adjusts editing restrictions based on the identified content type. When identification information indicates album content, editing restrictions are applied; when user-edited or transferred content is detected, full editing flexibility is enabled. This dynamic adaptation resolves the contradiction between protection and flexibility.
3Ease of operation
If still picture information is associated with song information, then playback quality and user experience are improved, but information storage requirements and recording medium complexity increase
Solution Approach 1:
The patent implements a nested structure where still picture information is stored within or alongside the song information in the second area of the recording medium. The identification information in the first area provides metadata about the association without requiring separate storage for all association data. This nesting approach improves playback quality while minimizing additional storage requirements.
Data Source
AI summary
An information recording medium is for recording of information, and identification information indicating whether the information is an album content distributed by electronic distribution or information edited by a user.