Video Display Device Synchronization for Enhanced Services
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Solution Overview
Problem
Current video display devices lack efficient control over the execution duration of applications associated with uncompressed audio and video content, limiting their ability to seamlessly integrate and synchronize main audio and video content with enhanced services.
Innovation Solution
A video display device and method that sets execution duration based on application characteristics, utilizing watermark and fingerprint technologies to recognize content and synchronize playback times, enabling efficient operation and integration of enhanced services with main audio and video content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the video display device receives only uncompressed audio-visual data from the broadcast receiving device, then the device complexity is reduced, but the functionality and versatility of enhanced services are limited
Solution Approach 1:
The patent applies preliminary action by having the broadcast receiving device extract and prepare enhanced service data in advance before transmission to the video display device. This allows the video display device to receive and utilize enhanced services without having to perform complex extraction operations itself, thus maintaining low device complexity while enabling enhanced functionality.
2Ease of operation
If the broadcast receiving device extracts and provides only uncompressed audio-visual data, then the ease of operation is improved, but the synchronization and integration of enhanced services with main content becomes difficult
Solution Approach 1:
The patent implements feedback mechanisms where the video display device sends requests for enhanced service data to the broadcast receiving device based on the main audio-visual content being displayed. The broadcast receiving device responds by providing the requested enhanced service data, ensuring synchronized delivery and reliable integration without complicating the operation of either device.
3Adaptability or versatility
If the MVPD excludes enhanced service data or adds different enhanced service data, then the adaptability of the system is improved, but the reliability of service delivery from broadcasting station to video display device deteriorates
Solution Approach 1:
The patent applies segmentation by separating the enhanced service data transmission into distinct segments or packets that are independently manageable. This allows the MVPD to selectively include or exclude different enhanced service data segments based on configuration needs, while the video display device can reliably receive and process only the segments it requires, maintaining both adaptability and reliability.
Data Source
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AI summary
A method of operating a video display device is provided. A reception unit obtains uncompressed audio and video content. A display unit displays the uncompressed audio and video content. An enhanced service management unit receives first content information comprising a trigger based on first characteristic information extracted from the uncompressed audio and video content, executes an application related to the uncompressed audio and video content based on the trigger, receives second content information related to the uncompressed content based on second characteristic information extracted from the uncompressed audio and video content, and terminates the application when the content information satisfies an application termination condition.