Digital Broadcasting AIT Transmission via BML Meta Elements
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Solution Overview
Problem
Current methods for transmitting Application Information Table (AIT) in digital broadcasting systems without AIT transmission capabilities require changes to existing facilities, leading to increased costs and potential receiver malfunctions.
Innovation Solution
A receiving apparatus and method that acquire and control application management information using Broadcast Markup Language (BML) and XML-AIT, allowing for the transmission of AIT without altering existing facilities by embedding AIT information in meta elements of BML documents, enabling control of application programs linked with broadcasting content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If AIT signal is overlapped to broadcasting wave for transmission, then application program management is enabled, but existing facilities must be changed leading to increased introducing cost
Solution Approach 1:
The patent merges AIT (Application Information Table) data with existing data broadcasting content by transmitting AIT as a section within the data broadcasting stream. This combines application management information with regular data broadcasting, allowing receivers to obtain both types of information through the same reception path without requiring separate transmission infrastructure or modifying existing broadcast facilities.
Solution Approach 2:
The invention makes the existing data broadcasting system universal by enabling it to carry both traditional data broadcasting content and AIT for application management. The data broadcasting transmission mechanism is extended to serve dual purposes: delivering data content and transmitting application lifecycle management information, thereby eliminating the need for dedicated AIT transmission facilities.
2Adaptability or versatility
If AIT is transmitted using data carousel transmission method with XML format, then AIT can be transmitted without changing transmitter, but existing receiver may cause malfunction
Solution Approach 1:
The patent applies local quality by embedding AIT information within specific sections of the data broadcasting stream rather than transmitting it as a complete separate XML document. The AIT is structured as organized sections with specific identifiers that allow receivers to selectively process only the relevant portions, maintaining compatibility with existing receivers while enabling AIT functionality.
Solution Approach 2:
The AIT information is segmented into multiple sections within the data broadcasting stream, each with specific identifiers. This segmentation allows the receiving apparatus to extract only the necessary AIT sections while ignoring other data broadcasting content, preventing interference with existing receiver operations while enabling application management functionality.
3Device complexity
If AIT is overlapped to broadcasting wave in system without AIT transmission capability, then facilities remain unchanged, but transmission of AIT is not possible
Solution Approach 1:
The invention introduces data broadcasting as an intermediary mechanism to transmit AIT information. Instead of directly overlapping AIT onto the broadcasting wave (which would require facility changes), the AIT is transmitted through the existing data broadcasting infrastructure, which acts as a mediator between the broadcast system and application management requirements.
Data Source
AI summary
The present invention relates to a receiving apparatus, a reception method, a transmitting apparatus, a transmission method, and a program that enable management information of an application program to be transmitted without changing existing facilities.An AIT acquiring unit acquires AIT information to control an operation of an application program executed in linkage with data broadcasting content, which is described in a meta element of a BML document of the data broadcasting content transmitted by a broadcasting wave of digital broadcasting, and an HTML browser unit controls an operation of a linked application distributed through the Internet, on the basis of the AIT information acquired by the AIT acquiring unit. The present invention can be applied to a television receiver that receives the broadcasting wave of the digital broadcasting.