Hybrid Broadcast Signaling via Web Socket Companion Devices
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Solution Overview
Problem
Digital broadcast systems face challenges in data transmission efficiency, robustness, and network flexibility, particularly in supporting high-definition images, multichannel audio, and additional services, especially in mobile and indoor reception environments.
Innovation Solution
A system that controls quality of service (QoS) based on service characteristics, enabling flexible broadcast signal transmission through hybrid broadcasting using terrestrial networks and the Internet, allowing for error-free reception with mobile devices and in indoor environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If digital broadcast signals transmit large amounts of video/audio data, then HD images and multichannel audio quality improve, but data transmission efficiency decreases
Solution Approach 1:
The broadcast data stream is segmented into multiple transport packets with structured formatting. Each packet contains specific fields (sync byte, transport error indicator, adaptation field, payload) that enable efficient processing and error handling, allowing high-quality video/audio data to be transmitted through organized data segments rather than raw streams
Solution Approach 2:
The system changes data transmission parameters by using variable-length adaptation fields that can be dynamically adjusted based on service requirements. This allows the system to optimize the balance between data throughput and quality by modifying packet structure parameters rather than using fixed-format transmission
2Adaptability or versatility
If digital broadcast systems include various additional data services, then service functionality improves, but network robustness decreases
Solution Approach 1:
The patent introduces intermediary error correction mechanisms and robust coding schemes that act as mediators between the additional data services and the transmission channel. These intermediaries protect the diversity of services from degrading network robustness by providing layered error protection and resilient data structures
Solution Approach 2:
The system applies prior cushioning through pre-configured error correction codes and redundancy mechanisms embedded in the data stream before transmission. This allows the network to maintain robustness even when carrying multiple additional services by having error protection already in place
3Adaptability or versatility
If the system supports mobile reception equipment, then network flexibility improves, but reception reliability worsens in indoor environments
Solution Approach 1:
The system employs dynamic adaptive modulation and coding schemes that can adjust transmission parameters in real-time based on channel conditions. This allows the system to maintain flexibility for mobile devices while improving indoor reception reliability by dynamically optimizing signal parameters for different environmental conditions
Data Source
AI summary
The present invention proposes a signalling method which can support effectively next-generation broadcast service in an environment which supports next-generation hybrid broadcast using terrestrial broadcast networks and the Internet. The signalling method comprises a broadcast reception method which can use a mobile reception device or can be used even in an indoor environment. The broadcast reception method may comprise the steps of: receiving a broadcast signal including service; establishing a web socket connection from an application of a companion screen device; generating a notification message for the service; and transferring the notification message to the companion screen device through the web socket connection.