Digital Broadcast Receiver Application Execution and EPG Integration
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Solution Overview
Problem
Digital broadcast receivers face limitations in transmitting high-definition screen displays and executing high-value functions due to data transmission constraints, making it difficult to provide enhanced functionalities.
Innovation Solution
A digital broadcast receiver capable of receiving and processing digital broadcast services, including a broadcast receiving unit, separation unit, video image reproduction unit, electronic program guide formation unit, application acquiring unit, and display unit, which separates and executes applications in cooperation with broadcast programs, enabling the display of electronic program guides and application execution videos.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If data broadcast is used to transmit information, then various information such as weather forecast, news, and program guides can be displayed, but the limited electric wave band prevents high-definition screen display and highly functional effects
Solution Approach 1:
The patent segments the broadcast data into multiple components: EPG information for program guides, application data for interactive functions, and video data for visual content. This segmentation allows each component to be processed and displayed independently, enabling rich information display within bandwidth constraints while maintaining the option for high-definition video playback when bandwidth is available.
Solution Approach 2:
The broadcast receiver is designed with multi-functionality to handle both traditional EPG display and application execution. The system can operate in information display mode using data broadcast, and switch to high-definition video playback mode when capable, making it adaptable to different service requirements and bandwidth conditions.
2Adaptability or versatility
If application execution is added to broadcast receiver, then higher-value functions can be provided, but device complexity increases
Solution Approach 1:
The patent merges the application execution environment directly into the broadcast receiver's existing processing architecture. The separation unit, reproduction units, and display components are reused for both traditional EPG functions and new application execution functions, reducing the need for separate hardware systems and minimizing overall device complexity.
Solution Approach 2:
The patent introduces an application acquisition unit and separation unit that act as intermediaries between the broadcast signal and the execution environment. These intermediary components parse and prepare application data in a standardized format, allowing the core receiver architecture to remain relatively simple while still supporting complex application functionality.
Data Source
AI summary
A broadcast receiver is configured to receive a broadcast wave of a digital broadcast service; separate at least a video image related to a broadcast program, electronic program guide information, and application-related information from the received broadcast wave; reproduce the video image related to the broadcast program; form an electronic program guide screen based on the electronic program guide information; acquire an application based on location information by referring to the application-related information; execute the application and outputs an application execution video image; and display the video image related to the broadcast program, the electronic program guide screen, or the application execution video image. The electronic program guide screen indicates information relating to applications to be executed in cooperation with the broadcast program.