Link Application Control Unit for TV Broadcasting
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Solution Overview
Problem
Ordinary app enterprises creating link applications for digital television broadcasting may cause issues such as no output of images or voices, and display of slanderous content, due to uncontrolled receiving device functions, when these applications are executed on receiving devices.
Innovation Solution
A receiving device with an application control unit that analyzes and controls link application actions based on permission information, limiting actions and web page switching to prevent such issues by determining permissible actions and domains, ensuring only authorized actions are executed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If ordinary app enterprises are allowed to create and execute link applications on receiving devices, then application versatility and functionality are improved, but system reliability and content safety deteriorate due to uncontrolled receiving device functions
Solution Approach 1:
The patent applies preliminary action by establishing application control information and permission settings before link applications are executed. The receiving device control functions are pre-configured with permission information that defines what actions link applications can perform. This prevents unauthorized operations before they can cause harm, while still allowing legitimate functionality.
Solution Approach 2:
The patent introduces application control information as an intermediary layer between the link application and the receiving device functions. This intermediary contains permission information that mediates all interactions, allowing the system to maintain reliability while preserving application versatility. The intermediary controls and filters what actions the application can perform on the receiving device.
2Reliability
If receiving device control functions are restricted for link applications, then system reliability and content safety are improved, but application functionality and user experience deteriorate
Solution Approach 1:
The patent applies local quality by providing differentiated permission information for different link applications. Instead of uniformly restricting all applications, each application can be granted specific permissions based on its needs and trust level. This allows content safety for restricted applications while maintaining full functionality for trusted applications, resolving the contradiction between safety and functionality.
Solution Approach 2:
The patent implements dynamic permission control where the receiving device control functions can be adjusted based on application control information. The permission information is not static but can be modified to grant or revoke specific capabilities as needed. This dynamic approach allows the system to maintain security while enabling functionality when appropriate.
3Adaptability or versatility
If link applications are allowed to switch web pages freely, then application versatility is improved, but system security and content control deteriorate due to unauthorized domain access
Solution Approach 1:
The patent applies preliminary action by pre-defining switching range information that specifies which domains and web pages a link application can access. Before the application can switch to any web page, the destination must be within the pre-approved switching range. This prevents unauthorized domain access while maintaining legitimate web browsing functionality.
Data Source
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AI summary
The present disclosure relates to a receiving device, a receiving method, a broadcasting device, a broadcasting method, a program, and a link application control system allowing control of receiving device control functions of a link app on the broadcasting side. A link application control system according to a third aspect of the present disclosure includes the broadcasting device that has a supply unit for supplying to the receiving device application control information concerning a link application executable with reception of the contents by the receiving device, and the receiving device that has an application executing unit for executing a link application that may refer to an image of the received contents and change a layout of a screen, and an application control unit for controlling the application executing unit based on the application control information to limit an action of the link application. The present disclosure is applicable to a television broadcasting system.