Signature Data Extraction for Synchronized Application Execution
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Solution Overview
Problem
In the United States, there is no data transmission band for TV broadcast signals, preventing the execution of applications in synchronization with ongoing TV programs, particularly in households using CATV or IPTV, where only video or audio is distributed, and thus no method exists to display related information or execute applications interlocked with the program progress.
Innovation Solution
A terminal apparatus and server system that extracts signature data from content, generates queries based on this data, and executes corresponding applications, using a database to associate signature data with content identifiers and application identifiers, enabling interlocked application execution with content progression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If TV broadcast signals include a data transmission band, then applications can be executed in synchronization with ongoing programs, but this is not available in the United States where no such band exists
Solution Approach 1:
The patent introduces signature data as an intermediary element that bridges the gap between video content and application execution. Instead of requiring a data transmission band, the system extracts signature data from the video content itself, which then serves as a key to identify and execute corresponding applications on the terminal device.
Solution Approach 2:
The patent replaces the traditional broadcast signal-based data transmission mechanism with a content-based recognition system. Instead of relying on electromagnetic signal bands, the system uses digital signature extraction and matching to achieve synchronized application execution.
2Ease of operation
If only video or audio is extracted from TV broadcasts for distribution on CATV or IPTV, then content can be delivered to households, but application-related data cannot be transmitted
Solution Approach 1:
The patent extracts signature data directly from the video content that is being distributed. This signature data contains the essential information needed to identify the content and trigger corresponding applications, allowing the system to function even when only video/audio streams are transmitted without additional data bands.
3Adaptability or versatility
If signature data is extracted from content to enable application execution, then interlocked application execution becomes possible, but processing complexity increases
Solution Approach 1:
The patent performs signature extraction at predetermined time points during content playback, rather than continuously analyzing the entire content stream. This preliminary sampling approach reduces processing complexity while still enabling accurate content identification and application triggering.
Data Source
AI summary
Disclosed herein is a terminal apparatus including an extraction portion configured to extract from a content to be reproduced signature data representative of a characteristic of the content; a query generation portion configured to generate a query including the extracted signature data; a communication portion configured to transmit the generated query to a server apparatus and receive a response returned therefrom in reply to the query; and an application execution portion configured to acquire and execute an application corresponding to an application identifier included in the received response.