Video Display Enhanced Service Synchronization via Segmentation
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Solution Overview
Problem
Current video display devices do not directly receive broadcast signals and lack access to enhanced services provided by broadcasting stations due to bandwidth limitations and the role of MVPDs in processing and modifying broadcast signals, resulting in incomplete service delivery.
Innovation Solution
A video display device with enhanced service management capabilities, including content recognition and playback control units, that obtain and synchronize uncompressed AV content and enhanced services by extracting content information and delay times, allowing for timely delivery of additional services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If video display device connects to broadcast receiving device to receive uncompressed AV content, then main AV content can be displayed, but enhanced service data is lost during MVPD processing
Solution Approach 1:
The patent segments the service delivery system into multiple independent components: broadcast receiving device for main AV content, separate enhanced service receiving unit for additional service data, and synchronization mechanism to coordinate both streams. This allows enhanced service data to be received and processed independently without being lost in the MVPD processing chain.
Solution Approach 2:
The patent introduces an intermediary enhanced service receiver that acts as a mediator between the broadcast signal and the display device. This intermediary component specifically captures enhanced service data that would otherwise be excluded or modified by the MVPD, and delivers it separately to the display device for reconstruction of complete services.
2Adaptability or versatility
If broadcast receiving device extracts only main AV data, then uncompressed audio-visual data can be provided to display device, but enhanced services led by broadcasting station cannot be provided
Solution Approach 1:
The patent implements a multi-functional receiving system where the display device incorporates both a main AV content receiver and an enhanced service receiver in one unit. This universal device can handle both uncompressed video content and additional service data, enabling it to adapt to different service types without requiring separate dedicated equipment for each function.
Solution Approach 2:
The system performs preliminary action by pre-receiving and buffering enhanced service data alongside main AV content before processing. The enhanced service receiver captures service data in advance, and the synchronization mechanism prepares both data streams for coordinated delivery, ensuring enhanced services are available when needed without compromising main content delivery efficiency.
3Quantity of substance
If enhanced services are transmitted through wireless channels, then broadcasting station can provide services, but bandwidth limitation restricts service quality and quantity
Solution Approach 1:
The patent transitions from a single-dimensional wireless transmission model to a multi-dimensional reception model. By adding a separate enhanced service receiving dimension that operates independently from the main AV content channel, the system can receive enhanced service data through alternative paths (including wired connections), effectively adding another dimension to the data reception space and bypassing wireless bandwidth constraints.
Solution Approach 2:
The patent merges multiple data reception paths into a unified display output system. The main AV content from wireless broadcast and enhanced service data from separate reception channels are combined and synchronized at the display device, creating a comprehensive service delivery system that leverages both wireless and potentially wired connections to overcome individual bandwidth limitations.
Data Source
AI summary
Provided are a video display device and a method of controlling the same. The method includes: obtaining an uncompressed audio-visual (AV) content; playing the uncompressed AV content through the display unit; obtaining content information of the uncompressed AV content on the basis of a content section of the uncompressed AV content; obtaining content change time information and enhanced service information on the basis of the content information; and determining a delay time for obtaining the next content information on the basis of the content change time information.