IP-Based Digital Broadcasting Reception Device Service Segmentation
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Solution Overview
Problem
The introduction of IP transmission schemes in digital broadcasting offers the potential for transmitting content in various formats to different devices, but lacks a technical framework to support flexible operation modes.
Innovation Solution
A reception and transmission device configuration that processes and transmits digital broadcasting services using IP addresses, allowing for the separation and management of particular and shared services, with control signals and time information packaged within IP packets, enabling flexible operation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IP transmission scheme is introduced for digital broadcasting, then content can be transmitted to various devices with various formats, but no technical scheme has been established to support operation modes
Solution Approach 1:
The patent segments services into particular services and shared services, where particular services are transmitted with specific IP addresses and shared services are transmitted with a common IP address. This segmentation enables flexible support for various operation modes while maintaining a manageable technical framework through standardized IP-based addressing.
2Adaptability or versatility
If services are transmitted with IP addresses for flexible operation modes, then various content formats can be transmitted to various devices, but service management becomes more complex
Solution Approach 1:
The patent introduces control signals as intermediaries that contain information for identifying particular services and shared services. These control signals act as mediators between the transmission system and the reception device, enabling the reception device to properly manage and distinguish between different services based on their IP addresses without increasing overall system complexity.
3Measurement precision
If control signals are transmitted at higher IP layers, then service identification is improved, but transmission efficiency may be reduced
Solution Approach 1:
The patent transmits control signals at a layer higher than the IP layer (such as application layer), adding an additional dimension for service identification. This hierarchical approach allows precise service identification through control signals containing service-specific information while maintaining efficient IP-based data transmission at the lower layer, thus resolving the contradiction between identification accuracy and transmission efficiency.
Data Source
AI summary
The present technique relates to a reception device, a reception method, a transmission device, and a transmission method, capable of flexibly supporting various operation modes. A service package unit processes, on a per-service basis, using an IP address included in each of packets, a particular service and a shared service related to the particular service, among a plurality of services transmitted via a broadcast wave of digital broadcasting using an IP transmission scheme. Accordingly, it is possible to flexibly support various operation modes in the digital broadcasting using the IP transmission scheme. It would be possible, for example, to apply the present technique to a television receiver.