Digital Broadcast Receiver Application Offloading via UPnP
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Solution Overview
Problem
The visibility of broadcast audio/video (A/V) content is compromised due to the presence of applications in bidirectional TV systems, leading to user dissatisfaction and potential conflicts between broadcast providers and third-party application developers.
Innovation Solution
A method is implemented where application data is transmitted to a secondary device, such as a mobile phone, allowing the A/V content to be displayed on the digital broadcast receiver while the application is shown on the secondary device, using Universal Plug and Play (UPnP) technology to establish a network connection and manage application distribution based on device capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If applications are displayed on the digital broadcast receiver screen, then user interaction with applications is improved, but the visibility of broadcast A/V content deteriorates
Solution Approach 1:
The system segments the display functionality by separating the A/V content display (on digital broadcast receiver) from the application display (on secondary device). This segmentation allows both broadcast content and applications to be visible simultaneously without overlapping, resolving the contradiction between application accessibility and A/V content visibility.
Solution Approach 2:
A secondary device (such as a mobile phone or tablet) acts as an intermediary to display applications. The digital broadcast receiver transmits application data to the secondary device, which then renders the applications independently from the main A/V content display, eliminating screen coverage issues while maintaining user interaction capability.
2Adaptability or versatility
If applications are processed on the digital broadcast receiver, then application functionality is improved, but device complexity increases
Solution Approach 1:
The system extracts the application processing function from the digital broadcast receiver and relocates it to a secondary device. The receiver only needs to transmit application data and receive control signals, significantly reducing its processing complexity while maintaining application versatility through the secondary device's capabilities.
Solution Approach 2:
The secondary device serves multiple functions: it displays applications, processes user interactions, and communicates with the digital broadcast receiver. This multi-functionality allows the system to maintain application processing capability while keeping the digital broadcast receiver simple and focused on its primary A/V reception role.
Data Source
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AI summary
A digital broadcast receiver is disclosed. The method of processing an application in a digital broadcast receiver connected with an interactive network includes receiving, from a broadcast network, broadcast audio/video (A/V) content and application information table (AIT) data, wherein the AIT data includes a linkage descriptor, parsing the linkage descriptor, wherein the linkage descriptor comprises a field identifying a type of at least one secondary device able to process the application, displaying an indicator informing that the application is able to be accessed by using at least one secondary device, searching at least one secondary device connected to the digital broadcast receiver, receiving a request signal for the application, and transmitting the application or an IP address of the application to the secondary device.