Blu-ray Menu Data Structure Segmentation
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Solution Overview
Problem
The development of Blu-ray Disc (BD) optical reproducing players is hindered by incomplete standards for supplementary data, particularly menu information, which restricts the effective reproduction and user interaction with Blu-ray Discs.
Innovation Solution
A data structure for managing graphic information is implemented, where first graphic information is always displayed and second graphic information is provided upon user request, using a combination of main menu and popup menus, with navigation information for reproducing specific data units, allowing for enhanced user interaction and menu organization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If menu information is consolidated in existing Blu-ray Disc standards, then data storage capacity is increased, but menu information reproduction and user interaction are restricted due to incomplete standards
Solution Approach 1:
The patent segments menu information into two distinct types: first graphic information (main menu) stored in a first clip file, and second graphic information (popup menu) stored in a second clip file. This segmentation allows each type to be managed independently with its own navigation and display controls, resolving the contradiction by enabling flexible menu reproduction while maintaining data storage efficiency.
Solution Approach 2:
The patent implements dynamic menu display where the second graphic information (popup menu) is displayed only when a user request is detected, while the first graphic information (main menu) is always displayed. This dynamic approach enhances user interaction capabilities without compromising the consolidated data structure, allowing the system to adapt to different user needs.
2Adaptability or versatility
If graphic information is stored in separate clip files, then menu information management flexibility is improved, but data structure complexity increases
Solution Approach 1:
The patent employs a universal data structure where both first and second graphic information are stored using the same clip file format and navigation information structure. This multi-functionality allows the system to handle different menu types with a unified framework, improving management flexibility while avoiding the complexity that would arise from entirely separate storage mechanisms.
Solution Approach 2:
The patent implements a nested structure where the second clip file (popup menu) is logically nested within the overall menu system that also contains the first clip file (main menu). Both are managed through a unified navigation information system, allowing hierarchical organization of menu elements while maintaining a relatively simple overall data structure through standardized access methods.
3Ease of operation
If always on display menu information is provided, then user convenience is improved, but data transmission and processing load increases
Solution Approach 1:
The patent implements periodic action by displaying the first graphic information (main menu) continuously while the second graphic information (popup menu) is displayed only periodically when user requests are detected. This approach maintains user convenience through the always-available main menu while reducing data processing load by loading and displaying popup menus only when needed, rather than continuously.
Data Source
AI summary
In the data structure for managing reproduction of graphic information, first graphic information is stored multiplexed with main data in a first clip file and second graphic information is stored in a second clip file separate from the first clip file.