Video Display Device Enhanced Service Layer Separation
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Solution Overview
Problem
Current video display devices cannot independently receive and separate enhanced services from broadcast signals, as they rely on broadcast receiving devices to provide only uncompressed audio-visual content, limiting user experiences and the availability of enhanced services.
Innovation Solution
A network topology that includes content providing servers, watermark and fingerprint servers, and enhanced service servers allows video display devices to recognize and extract content information from main audio-visual content, enabling the separation and provision of uncompressed audio-visual content and enhanced services as distinct layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video display devices are connected to broadcast receiving devices to display uncompressed audio-visual contents, then the display quality is improved, but the availability of enhanced services is limited
Solution Approach 1:
The system segments the broadcast signal into two separate layers: an uncompressed audio-visual content layer for high-quality display, and an enhanced service data layer for additional services. This segmentation allows the video display device to independently access and process enhanced service data directly from the broadcast signal, eliminating the limitation of relying solely on the broadcast receiving device's enhanced services.
Solution Approach 2:
The patent introduces an intermediary component (enhanced service data extraction unit) that enables the video display device to directly extract enhanced service data from the broadcast signal. This intermediary mechanism bridges the gap between the broadcast signal and the display device, allowing enhanced services to be delivered directly to the display device without requiring the broadcast receiving device to provide them.
2Manufacturing precision
If broadcast receiving devices extract and provide only uncompressed audio-visual data to video display devices, then the display quality is improved, but enhanced services provided by broadcasting stations are lost
Solution Approach 1:
The patent applies extraction by introducing a dedicated enhanced service data extraction unit in the video display device. This unit directly extracts enhanced service data from the broadcast signal, taking out the valuable enhanced service information that would otherwise be lost when the broadcast receiving device provides only uncompressed audio-visual data. This extraction mechanism ensures that enhanced service data is preserved and made available to the display device.
3Adaptability or versatility
If MVPD converts broadcast signals and provides them to broadcast receiving devices, then signal compatibility is improved, but enhanced services led by broadcasting stations may be excluded or replaced
Solution Approach 1:
The patent applies preliminary action by enabling the video display device to proactively extract enhanced service data directly from the broadcast signal before the MVPD's conversion process potentially excludes or replaces it. By performing this extraction at the display device level, the system ensures that the original enhanced service data from broadcasting stations is preserved and utilized, counteracting the information loss that may occur during MVPD conversion and distribution.
Data Source
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AI summary
A method of operating a video display device including a display unit is provided. The method includes: playing uncompressed audio-visual content through a first layer of the display unit; obtaining content information on the uncompressed audio-visual content based on some of the uncompressed audio-visual content; obtaining an enhanced service based on the content information; and playing an obtained enhanced service through a second layer of the display unit, wherein the first layer and the second layer are overlapped each other.