Broadcast Receiver Link Extraction via OCR
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Solution Overview
Problem
Existing broadcast systems require large data transmission to enable user interaction, as the entire application must be sent to the receiver, and often face interoperability issues due to varying receiver software behaviors.
Innovation Solution
An apparatus and method that extracts link information from audio-visual data using OCR and image recognition algorithms, allowing for the selection and execution of functions based on link information types, such as URLs or telephone numbers, without requiring the entire application to be transmitted, and enables interaction with secondary devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire application is transmitted to the receiver to enable user interaction functionality, then the functionality becomes available to the user, but the data transmission requirement increases significantly
Solution Approach 1:
The patent extracts only the essential link information (URLs, phone numbers, contact details) from the audio-visual broadcast content using OCR and image recognition algorithms. Instead of transmitting the entire application, only the extracted link information and minimal metadata are sent to the receiver, enabling user interaction while dramatically reducing data transmission requirements.
Solution Approach 2:
The patent creates a simplified copy of the interaction functionality by extracting key link information from the broadcast content and transmitting only this essential data to the receiver. The receiver then uses this extracted information to provide interactive capabilities without needing the complete application, effectively creating a lightweight copy of the necessary functionality.
2Ease of operation
If receiver software is customized to automatically run applications, then the broadcaster can directly monitor key presses and display web pages, but interoperability issues arise as different receivers do not work in the same way
Solution Approach 1:
The patent creates a universal solution by extracting link information in a standardized format that can be processed by any receiver regardless of its specific software implementation. The OCR-based extraction produces consistent link information (URLs, phone numbers, contact details) that can be universally handled by different receiver devices, enabling automatic execution functionality across multiple platforms while ensuring interoperability.
Solution Approach 2:
The patent changes the parameter of data representation by converting unstructured link information from broadcast content into a standardized, structured format with defined metadata fields. This parameter transformation ensures that different receivers can consistently interpret and process the link information, improving interoperability while maintaining automatic execution capabilities.
3Quantity of substance
If link information is extracted from audio-visual data using OCR and image recognition, then data transmission requirements are reduced, but the processing complexity increases
Solution Approach 1:
The patent segments the link information extraction process into distinct, manageable components: screen capture from the broadcast, OCR text recognition, image recognition for visual elements, and structured data formatting. By dividing the complex extraction task into separate processing stages, the system reduces overall processing complexity while achieving the goal of minimal data transmission.
Solution Approach 2:
The patent performs preliminary action by extracting and structuring link information at the broadcaster端 before transmission. The OCR and image recognition processing is completed in advance, and only the processed, structured link information is transmitted to the receiver. This preliminary processing reduces the burden on the receiver and optimizes the overall system efficiency.
Data Source
Figure 1A~1B
Figure 2
Figure 3~4
AI summary
An apparatus and method for receiving a broadcast stream is provided. The apparatus is configured to receive key information and additional information through the broadcast stream, select one of a plurality of predetermined functions based on the additional information, and perform the selected function in response to a control signal identified by the key information. The additional information may include link information such as a URL or telephone number, and the function may be selected based on a type of the link information. In some embodiments, the link information may be extracted from audio-visual data of a selected programme, using optical character recognition. The apparatus may connect to a secondary device to transmit information to the secondary device, and may receive information relating to the selected programme from the secondary device.