IPTV Service Discovery for Multiple Video Streams
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Solution Overview
Problem
Conventional broadcasting systems and IPTV systems are limited in that they can only transmit and receive one video stream per service, preventing simultaneous reception of multiple video streams.
Innovation Solution
A method and apparatus for transmitting and receiving digital content services using an IPTV system that allows for the simultaneous transmission and reception of multiple video streams by employing a service discovery and selection protocol, service discovery records, and broadcast discovery records, enabling the provision of supplementary and replacement services alongside main services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional broadcasting system or IPTV system transmits one video stream per service, then the system structure remains simple and manageable, but the receiver cannot simultaneously receive multiple video streams
Solution Approach 1:
The service information is segmented into multiple discovery records (service discovery record and broadcast discovery record), each containing specific information about different video streams. This segmentation allows the receiver to selectively process and receive multiple video streams while maintaining organized system management
Solution Approach 2:
The receiver is designed with multi-functionality to handle both service discovery and broadcast discovery records, enabling it to receive and manage multiple video streams within a single device framework, thus improving adaptability without proportionally increasing complexity
2Adaptability or versatility
If separate services are used to receive multiple video streams, then each video stream can be received independently, but the user cannot receive multiple streams within a single service context
Solution Approach 1:
Multiple video stream information is merged into a single service through the combination of service discovery record and broadcast discovery record. This allows the receiver to manage multiple streams within one service context, improving ease of operation while maintaining the capability to receive multiple streams
Data Source
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AI summary
A method of transmitting/receiving a broadcasting signal and a receiver are disclosed. According to the present invention, one broadcast service can be provided by a plurality of video streams. The receiver receives broadcasting information including a first service, which includes a service trigger information of a replacement service for the first service. So the user can view a replacement service of the first service through the service trigger information.