Broadcast Service Receiver Trigger Mechanism
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Solution Overview
Problem
Current digital television (DTV) systems face challenges in providing and receiving diverse broadcast services efficiently, particularly in handling real-time and non-real-time data, as traditional receivers are not equipped to process non-real-time services effectively.
Innovation Solution
A broadcast service receiving method and device that utilizes a service manager to receive service signaling data, identify triggered objects, and perform trigger actions at designated times to receive and provide real-time data, while also transmitting triggers and real-time data through the internet or broadcast networks, enabling efficient delivery of improved broadcast services without affecting typical receivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional receivers are used for broadcast service, then compatibility with existing systems is maintained, but the ability to process non-real-time services and provide diversified services is limited
Solution Approach 1:
The receiver is divided into functional modules: a service manager for receiving and managing service signaling data, a trigger receiving unit for receiving triggers, and a triggered object for storing and processing data. This segmentation allows the system to handle both real-time and non-real-time services while maintaining clarity in functionality and reducing overall system complexity.
Solution Approach 2:
The service manager is designed to universally handle multiple service types by receiving service signaling data that identifies different service categories (real-time, non-real-time, trigger-based). This multi-functional design enables a single receiver to provide diversified services without requiring separate specialized devices for each service type.
2Reliability
If real-time data transmission is implemented for broadcast services, then service quality is improved, but data transmission efficiency and bandwidth utilization are challenged
Solution Approach 1:
Triggers are transmitted in advance along with trigger time information, allowing the receiver to prepare and store triggered objects before real-time data transmission is needed. This preliminary action enables the system to switch to real-time data mode at the appropriate moment, ensuring service quality while optimizing bandwidth utilization by not continuously transmitting real-time data when not needed.
Solution Approach 2:
The system uses periodic trigger transmission to activate real-time data transmission only when necessary. The service manager receives service signaling data that indicates when real-time data should be transmitted, allowing the system to alternate between storing non-real-time data and receiving real-time data based on periodic triggers, thus improving transmission efficiency while maintaining service quality.
3Ease of operation
If service signaling data is enhanced for trigger-based services, then service management capability is improved, but processing complexity and computational requirements increase
Solution Approach 1:
Service signaling data is segmented into distinct components: trigger information (including trigger time and trigger action), triggered object identification, and real-time data transmission parameters. This segmentation allows the service manager to process each component separately using dedicated processing logic, simplifying the overall processing complexity while improving service management capability.
Solution Approach 2:
The service manager acts as an intermediary between the received service signaling data and the triggered objects. It interprets the signaling data, determines the appropriate actions to take, and coordinates between different functional units (trigger receiving unit, storage unit, real-time data receiver). This intermediary role simplifies processing by centralizing the interpretation and coordination logic in a single management unit.
Data Source
AI summary
A broadcast service receiving method of a broadcast receiving device is provided. The method includes: receiving a trigger; receiving a triggered object; when a target of the received trigger is the triggered object, performing a trigger action on the triggered object at a trigger time; receiving real-time data available for the triggered object by an operation of the triggered object according to the performing of the triggered action; and providing a service by using the real-time data.