Broadcast Supplementary Information Synchronization via Timestamps
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Solution Overview
Problem
Existing data broadcasting services face inefficiencies in transferring supplementary information, as they require additional frequency resources and struggle to temporally match broadcast information with supplementary content, leading to unsatisfactory user experience due to inefficient information transfer and limited personalized service capabilities.
Innovation Solution
A supplementary information server that receives requests from integrated terminals, utilizing XML files with vector values and timestamps to synchronize and extract supplementary information based on broadcast content, allowing for accurate temporal matching and personalized content delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If broadcast content is delivered without supplementary information, then bandwidth consumption is reduced, but user engagement and information completeness deteriorate
Solution Approach 1:
The broadcast content is segmented into primary content delivered via traditional broadcast, and supplementary information delivered separately via IP network. This segmentation allows efficient bandwidth utilization for main content while providing enhanced user engagement through on-demand supplementary materials.
Solution Approach 2:
A synchronization system acts as an intermediary between broadcast content and supplementary information. It uses timestamps and metadata to coordinate the delivery of both content types, ensuring they are properly aligned and synchronized without requiring excessive bandwidth for simultaneous transmission.
2Measurement precision
If supplementary information is synchronized with broadcast content using complex timing mechanisms, then content accuracy is improved, but system complexity increases
Solution Approach 1:
Timestamps and synchronization metadata are embedded in advance within the broadcast content stream. This preliminary action eliminates the need for complex real-time synchronization calculations, as the timing information is already prepared and available when the content is received.
Solution Approach 2:
The system incorporates feedback mechanisms where the set-top box or client device reports synchronization status and timing information back to the server. This feedback loop allows for automatic adjustment and maintains synchronization accuracy without requiring overly complex predetermined synchronization logic.
3Speed
If all supplementary information is made available immediately, then user access speed is improved, but data transmission volume increases
Solution Approach 1:
Supplementary information is pre-processed, pre-formatted, and staged for delivery with synchronization timestamps embedded. This preliminary preparation enables rapid access when needed while avoiding the transmission of unnecessary data that would increase overall volume.
Solution Approach 2:
The system delivers only the specific portions of supplementary information that are currently needed and synchronized with the broadcast content, rather than transmitting all available supplementary data. This partial action approach maintains fast access speed while controlling data transmission volume.
Data Source
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AI summary
Disclosed herein is a system and method for synchronizing broadcast content with supplementary information. The supplementary information synchronization system of the present invention detects synchronization information in which a time offset between broadcast content, provided by a Content Provider (CP), and broadcast content, received over a broadcasting network, is considered, by comparing the broadcast content, received from over the broadcasting network, and synchronization information, transmitted from a supplementary information generating apparatus, and extracts screen information corresponding to the time at which an integrated terminal requested supplementary information based on the Present Time Stamp (Start) (PTS) information of broadcast content, received in response to a request for the supplementary information from the integrated terminal and corresponding to the time at which the supplementary information was requested, and the synchronization information in which the time offset is considered.