Storage Medium for AV Data with Interactive Program Applications
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Solution Overview
Problem
Conventional AV data storage media lack user interactive functions and security measures to prevent unauthorized distribution of protected AV data, as they only allow simple reproduction of content according to the producer's intent.
Innovation Solution
A storage medium and reproducing apparatus that include reproduction mode data, program applications, system data, and application objects to manage the execution of program data, providing interactive functions and preventing unauthorized distribution by separating AV data information from program applications, allowing user interaction and secure AV data reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If program applications are integrated with AV data on the storage medium, then user interactive functions and additional functions can be provided, but security measures to prevent unauthorized distribution of protected AV data are lacking
Solution Approach 1:
The patent segments the storage medium content into distinct layers: program applications (including Java applications, HTML files, and other executable code) are separated from AV data (video and audio streams). This segmentation allows program applications to provide interactive functions while AV data remains protected through separate security mechanisms such as encryption and authorization checks performed by the reproducing apparatus.
Solution Approach 2:
The patent introduces an intermediary authorization mechanism that mediates between program applications and AV data. The reproducing apparatus performs authorization checks and controls the execution of program applications, preventing them from directly accessing or distributing protected AV data. This intermediary layer ensures security while allowing legitimate interactive functionality.
2Ease of operation
If program applications directly access AV data for processing, then interactive functions can be implemented, but AV data can be maliciously distributed through other media
Solution Approach 1:
The patent implements preliminary anti-action by performing authorization checks and security validations before allowing program applications to access AV data. The reproducing apparatus verifies digital rights management (DRM) protections and controls data flow, preventing malicious applications from extracting or redistributing protected content through unauthorized channels.
Solution Approach 2:
An intermediary authorization system is introduced between program applications and AV data. This intermediary controls and monitors all access requests, ensuring that program applications can only access AV data through authorized interfaces and cannot maliciously distribute content through other media such as USB devices or network connections.
3Productivity
If AV data and program applications are stored together on the storage medium, then integrated reproduction can be achieved, but program applications cannot be reused across different AV data content
Solution Approach 1:
The patent implements universality by designing program applications as independent, platform-compatible software components that can run on multiple reproducing apparatuses and work with different AV data content. Program applications are stored in a standardized format (such as Java bytecode) that can be executed across different devices, allowing the same application to be reused with various video and audio content without modification.
Solution Approach 2:
The patent segments the system into independent components: program applications are separated from specific AV data files, allowing applications to be reused across different content. The reproducing apparatus includes a program execution engine that can load and execute the same program application with different AV data inputs, achieving both integrated reproduction and application reusability.
Data Source
AI summary
A storage medium storing multimedia data for the reproduction of audio-visual (AV) data and a programming function, and a reproducing apparatus and method thereof. The storage medium includes: reproduction mode data for reproducing audio-visual (AV) data; program data including a plurality of program applications for providing interactive functions with a user and/or additional functions using the AV data; system data for controlling the execution of the reproduction mode data and the program data; and application objects for managing the execution of the program data and information on the reproduction mode data to be reproduced along with the execution of the program data. Accordingly, various user interfaces and/or various additional functions can be provided, as well as simple reproduction of AV data. Also the program application can be prevented from using malicious intent, and program applications having the same function can be reused without modification or recompilation.