Recovery File Signaling to Restore Enhanced Broadcast Data
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Solution Overview
Problem
In digital broadcasting systems, the broadcast receiving device often removes or alters enhanced service data provided by the broadcasting station, leading to a mismatch between the intended enhanced service data and what is ultimately received by the AV presentation device.
Innovation Solution
A method for receiving a recovery file format file that includes decoding elements from a recovery data table, which contains a contentID field, svcInetUrl field, and URLValue field to access Internet signaling files for service information, allowing the AV presentation device to recover the original enhanced service data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the broadcast receiving device extracts and processes AV content from the signal received from the MVPD, then the AV content can be provided to the AV presentation device, but the enhanced service data provided by the broadcasting station may be removed or altered during this process, leading to loss of information
Solution Approach 1:
The patent applies preliminary action by extracting and preserving enhanced service data at the broadcasting station before the signal reaches the MVPD and broadcast receiving device. The enhanced service data is embedded in the AV content signal in advance, ensuring it survives the extraction and processing operations at downstream devices without being removed or altered.
Solution Approach 2:
The patent uses copying by creating a redundant copy of the enhanced service data that is embedded within the AV content signal itself. This copy travels alongside the AV content through the distribution chain, ensuring that even if the original enhanced service data is removed during processing, a preserved copy remains available at the AV presentation device.
2Adaptability or versatility
If the MVPD converts and redistributes the AV signal, then the signal format can be adapted for different devices, but the original enhanced service data may be removed or replaced with different enhanced service data
Solution Approach 1:
The patent applies preliminary action by embedding the enhanced service data into the AV content signal at the broadcasting station before the MVPD performs any conversion or redistribution operations. This ensures the enhanced service data is already integrated into the signal structure and will be preserved through format conversions and redistributions.
Solution Approach 2:
The patent merges the enhanced service data with the AV content signal by embedding it within the signal stream. This combination ensures that the enhanced service data travels together with the AV content through all subsequent processing, conversion, and distribution operations, preventing separation or removal during MVPD operations.
3Manufacturing precision
If the broadcast receiving device provides only uncompressed AV data to the AV presentation device, then the AV quality is improved, but only the enhanced service data provided to the broadcast receiving device is available, not the original enhanced service data from the broadcasting station
Solution Approach 1:
The patent applies preliminary action by preserving the enhanced service data in the AV content signal before it reaches the broadcast receiving device. This ensures that when the device extracts and provides uncompressed AV content, the enhanced service data is already embedded and preserved, allowing the AV presentation device to access both high-quality video and the original enhanced service data.
Solution Approach 2:
The patent uses copying by embedding a copy of the enhanced service data within the AV content signal that is transmitted to the broadcast receiving device. This copy survives the extraction and uncompressed output process, ensuring the AV presentation device receives both high-quality video and the enhanced service data without loss.
Data Source
AI summary
A system for retrieving watermark associated recovery data information.