Composite PlayList Integration for Blu-ray External Data
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Solution Overview
Problem
Current optical recording and reproducing apparatuses face limitations in seamlessly combining and reproducing external input signals with built-in Blu-ray disc (BD) playback signals, hindering the development of full-scale Blu-ray disc-based systems.
Innovation Solution
A method and apparatus for creating a playback control file that combines an original PlayList from a recording medium with additional PlayLists downloaded from an external source to control and reproduce both types of data as a single, composite PlayList, allowing for individual or combined playback of original and additional data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If external input signals and built-in blu-ray disc playback signals are reproduced separately, then the existing playback system can maintain its current functionality, but the system cannot achieve seamless combined reproduction of external and internal content
Solution Approach 1:
The patent merges external PlayList data and internal Blu-ray PlayList data into a single composite PlayList file. This composite file contains both external content information (from internet or other sources) and internal content information (from Blu-ray disc), allowing the playback device to reproduce both types of content seamlessly through one unified control structure, thereby achieving combined reproduction capability without requiring separate playback systems
2Adaptability or versatility
If a composite PlayList combining original and additional data is created, then standardized reproduction of combined data is achieved, but the complexity of creating and managing the composite PlayList increases
Solution Approach 1:
The composite PlayList is segmented into distinct sections: external content information sections and internal content information sections. Each section maintains its own structure and characteristics while being part of the unified composite file. This segmentation allows the system to preserve the original formats and structures of external and internal PlayLists while enabling their combined reproduction through a standardized composite structure
Solution Approach 2:
The patent introduces a PlayList creation unit as an intermediary component that automatically generates the composite PlayList by combining external and internal PlayList data. This intermediary handles the complexity of integration, mapping, and structure creation, shielding users from the computational complexity while achieving standardized reproduction of combined content
3Productivity
If external data is integrated with internal Blu-ray content, then user experience and product efficiency are enhanced, but the system faces restrictions in full-scale development due to lack of standardized playback methods
Solution Approach 1:
The composite PlayList structure is designed to be universal, capable of accommodating both external content (from internet, USB, or other sources) and internal Blu-ray content within a single standardized format. This multi-functional structure enables the playback system to handle diverse content sources reliably while maintaining consistent reproduction behavior, thereby supporting full-scale development with standardized playback methods
Data Source
AI summary
A method of creating a playback control file for a recording medium and a method and apparatus for reproducing data using the playback control file are disclosed. The method of creating a playback control file includes reading an original PlayList from the recording medium, the original PlayList being configured to reproduce original data recorded on the recording medium, downloading at least one additional PlayList from an external source, the at least one PlayList being configured to reproduce additional data downloadable from the external source, and creating a composite PlayList by combining the original PlayList with the at least one additional PlayList, the composite PlayList being able to control reproduction of the original and additional data, individually or in combination. The method may further include playing-back any one of the original PlayList, the at least one additional PlayList, and the composite PlayList.