Host Device Interfacing with Point of Deployment for Broadcast Data
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Solution Overview
Problem
Existing television services using digital broadcasting technologies face limitations in processing and delivering broadcast data across various transmission protocols, including wired and wireless networks, and Internet Protocol (IP) protocols, without seamless integration and content protection.
Innovation Solution
A host device interfacing with a Point Of Deployment (POD) that processes broadcast data by receiving IP packets, routing them based on destination information, extracting Transport Stream (TS) packets, adding identification headers, and multiplexing them for transmission, while also supporting conditional access using conventional cable cards and receiving data from Multimedia over Coax Alliance (MoCA) networks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a host device processes broadcast data from multiple transmission protocols (wired/wireless network and IP protocol), then the adaptability and versatility of the device is improved, but the device complexity increases due to the need to handle multiple protocols and interfaces
Solution Approach 1:
The patent introduces a gateway device as an intermediary between the host device and multiple transmission protocols. The gateway receives broadcast data from various protocols (wired/wireless networks, IP protocols) and converts them into a unified format that the host device can process. This mediator approach allows the host device to maintain simple architecture while achieving multi-protocol compatibility through the gateway's protocol conversion capabilities.
2Reliability
If the host device integrates conditional access and content protection mechanisms, then the security and reliability of broadcast data processing is improved, but the device complexity increases due to additional processing layers
Solution Approach 1:
The patent segments the content protection functionality into a separate conditional access module that operates independently from the main broadcast data processing path. This modular segmentation allows the host device to implement robust content protection mechanisms while maintaining a clear separation between security processing and data processing functions, thereby managing system complexity through functional decomposition.
3Adaptability or versatility
If the host device processes Inband data received over the Internet, then the functionality and service capability are improved, but the difficulty of detecting and measuring data sources increases
Solution Approach 1:
The patent implements feedback mechanisms where the host device continuously monitors and tracks the sources of Inband data received over the Internet. By establishing feedback loops that record data source information, transmission paths, and routing details, the system maintains the ability to identify and measure data sources even as it processes diverse Internet-based broadcast data, thus resolving the contradiction between enhanced functionality and source detectability.
Data Source
AI summary
A host device interfacing with a point of deployment (POD) and method of processing broadcasting data are disclosed. An IP physical interface unit receives a frame including an internet protocol (IP) packet carrying broadcast data through a network modem. A routing engine routs the frame based on a destination information included in the frame. An IP to TS Decapsulator extracts a MPEG-2 TS packet from the IP packet included in the routed frame. And a multiplexer augments the extracted MPEG-2 TS packet with Packet Header carrying an identification information, multiplexes the augmented MPEG-2 TS packet and forwards the multiplexed MPEG-2 TS to the POD.