Watermark Payload for Broadcast Data Integrity
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Solution Overview
Problem
In digital broadcasting systems, the broadcast receiving device often extracts and modifies audio-visual content, leading to a loss or alteration of enhanced service data, resulting in inconsistencies between the data provided by the broadcasting station and the AV presentation device.
Innovation Solution
A system that includes a content source, a content recognizing service providing server with a watermark inserter, and an enhanced service information providing server, which embeds watermarks in audio-visual content to carry enhanced service data, ensuring that the AV presentation device receives the intended information, even if the broadcast receiving device modifies or removes it.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the broadcast receiving device extracts and converts audio-visual content, then the audio-visual quality is improved, but the enhanced service data is lost or altered
Solution Approach 1:
The patent merges the enhanced service data into the audio-visual content by embedding watermarks that contain the service data within the audio-visual signal itself. This allows the data to travel together with the content through the conversion process without being separated or lost.
Solution Approach 2:
The patent uses watermarks as an intermediary carrier to transfer enhanced service data through the broadcast receiving device and MVPD conversion process. The watermarks embed the data in a way that survives extraction and format conversion, acting as a mediator between the source and final delivery.
2Adaptability or versatility
If the MVPD converts and redistributes audio-visual content, then the content delivery flexibility is improved, but the data consistency between broadcasting station and AV presentation device deteriorates
Solution Approach 1:
The patent applies preliminary action by embedding the watermarks containing enhanced service data into the audio-visual content at the source (broadcasting station) before any conversion or redistribution occurs. This ensures the data is already integrated and will remain consistent throughout subsequent processing by the MVPD and broadcast receiving device.
Solution Approach 2:
The watermarking system serves multiple functions simultaneously: it carries enhanced service data, maintains data consistency across different devices and formats, and allows flexible redistribution by the MVPD. The same watermark structure works across different conversion scenarios and delivery paths.
3Productivity
If enhanced service data is provided separately from audio-visual content, then the data processing efficiency is improved, but the data availability to AV presentation device is reduced
Solution Approach 1:
The patent combines the enhanced service data with the audio-visual content stream by embedding watermarks directly in the content. This merging ensures the data travels with the content to the AV presentation device, guaranteeing availability while maintaining processing efficiency through integrated transmission.
Data Source
AI summary
A system for broadcasting that includes a watermark payload.