Recording Medium Data Structure for Managing Multiple Graphics Streams
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
There is a lack of an appropriate method for managing multiple graphics streams on high-density optical discs, such as Blu-ray discs, which have higher recording capacities than traditional DVDs.
Innovation Solution
A data structure is implemented on the recording medium that includes a clip information file area with management information for reproducing multiple graphics streams, where each graphics stream is identified by a unique packet identifier, and a program information field that provides coding and display information for each stream, allowing for efficient management and reproduction of multiple graphics streams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple graphics streams are recorded on high-density optical discs, then the recording capacity and content versatility are improved, but the method for managing and reproducing these streams is insufficient or non-existent
Solution Approach 1:
The patent segments the management of multiple graphics streams by introducing distinct data structures: clip information files that identify individual graphics streams via packet identifiers, and program information fields that provide coding and display information for each stream. This segmentation allows independent management and selection of different graphics streams (e.g., different languages, camera angles) recorded on high-density optical discs.
2Adaptability or versatility
If multiple graphics streams with different versions, camera angles, and languages are recorded, then the content versatility and user experience are improved, but the complexity of managing and reproducing these streams increases
Solution Approach 1:
The patent introduces intermediary data structures that mediate between the multiple graphics streams and the reproduction system. Clip information files act as intermediaries by storing management information that identifies each graphics stream through packet identifiers. Program information fields serve as intermediaries by providing coding and display information. These intermediaries simplify the reproduction process by organizing and managing the complexity of multiple streams.
3Productivity
If a data structure with clip information files and program information fields is implemented, then the management and reproduction of multiple graphics streams becomes efficient, but the data structure complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-organizing multiple graphics streams into a structured data format during recording. Clip information files are created in advance to store management information including packet identifiers for each graphics stream. Program information fields are prepared beforehand to contain coding and display information. This preliminary organization enables efficient reproduction without real-time complexity.
Data Source
AI summary
The recording medium includes a data area storing at least multiple graphics streams in at least one portion thereof. The multiple graphics streams are multiplexed, and each graphics stream is a transport stream stored as one or more packets. Each packet has a packet identifier, and the packets of the same graphics stream have the same packet identifier.