Broadcast Reception Device Multicasting Emergency Alerts to Companion Screens
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Solution Overview
Problem
Current broadcast systems face challenges in efficiently interoperating with terminal devices like smartphones and tablets, particularly in delivering emergency alert messages and providing broadcast services that can seamlessly integrate with these devices.
Innovation Solution
A broadcast reception device equipped with a broadcast interface to receive emergency alert messages and signaling information, which generates an emergency alert multicast message and transmits it to companion devices using a multicast method, including a header and body message with specific fields for metadata and properties, ensuring efficient delivery of emergency alerts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If emergency alert messages are transmitted using traditional broadcast methods, then all receivers can receive the message, but terminal devices like smartphones and tablets cannot efficiently receive and process the emergency alert information
Solution Approach 1:
The patent introduces a companion device as an intermediary between the broadcast reception device and terminal devices. The companion device receives emergency alert messages from the broadcast system, processes them into appropriate formats, and transmits them to terminal devices via communication networks, enabling efficient delivery to smartphones and tablets while maintaining compatibility with traditional broadcast infrastructure
Solution Approach 2:
The system segments the emergency alert delivery process into distinct functional components: broadcast signal reception, message processing and formatting, and communication transmission to terminal devices. This segmentation allows each component to be optimized independently, improving overall efficiency while maintaining broad compatibility
2Productivity
If broadcast services are designed to work with traditional broadcast receivers only, then the system remains simple, but it cannot provide efficient services to modern terminal devices
Solution Approach 1:
The companion device is designed with multi-functionality, serving both as a broadcast signal receiver and a communication device that interfaces with terminal devices. It can handle multiple message formats and communicate through various protocols, making it universally compatible with different terminal devices while maintaining a relatively simple architecture
Solution Approach 2:
The companion device acts as an intermediary layer that shields the complexity of terminal device interfaces from the broadcast system. It handles message formatting, protocol conversion, and communication management, allowing the broadcast system to remain simple while efficiently serving modern terminal devices
Data Source
AI summary
A broadcast receiving apparatus may comprise: a broadcast interface for receiving a broadcast signal comprising an emergency alert message and signaling information indicating metadata for the emergency alert message; a control unit for generating an emergency alert multicast message comprising attributes of the emergency alert message on the basis of the broadcast signal; and a companion screen interface for transferring the emergency alert multicast message to at least one companion screen device in a multicast mode.