IPTV Decoder Pre-acquisition for Fast Channel Switching
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Solution Overview
Problem
IPTV channel conversion speed is significantly reduced due to the time required for receiving and processing content in IPTV networks, compared to conventional analog broadcasting networks.
Innovation Solution
An electronic apparatus and method that pre-acquire and store information on multiple IPTV channels, allowing for immediate decoding and output of a new channel upon user instruction, thereby reducing the channel change time by omitting the need for real-time analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If real-time streaming broadcasting content is provided through IPTV network, then content delivery is achieved, but channel conversion speed is reduced due to several seconds spent for receiving and processing content
Solution Approach 1:
The system performs preliminary actions by acquiring and storing content information from multiple channels in advance through the communicator while currently outputting one channel. When channel conversion is requested, the pre-acquired information is immediately utilized for decoding, eliminating the need for real-time content reception and processing during channel switching.
2Speed
If conventional analog broadcasting network is used, then channel conversion is fast through simple frequency change, but IPTV network requires several seconds for content reception and processing
Solution Approach 1:
The system performs preliminary actions by acquiring and storing content information from multiple channels in advance through the communicator while currently outputting one channel. When channel conversion is requested, the pre-acquired information is immediately utilized for decoding, eliminating the need for real-time content reception and processing during channel switching.
3Speed
If information on multiple channels is pre-acquired and stored, then channel conversion speed is enhanced, but memory requirements increase
Solution Approach 1:
The system extracts only the essential content information needed for decoding from the full channel data streams. Instead of storing complete video content, the processor acquires and stores minimal necessary information (such as decoding parameters, metadata, or compressed representations) that enables rapid channel switching without requiring proportionally large memory capacity.
Data Source
AI summary
An electronic apparatus includes a communicator connected to a Local Area Network (LAN), an inputter, a memory storing at least one computer executable instruction, and a processor. The processor outputs a content of a first channel received through the communicator, receives information associated with contents of a plurality of channels through the communicator and stores the information in the memory while the content of the first channel is being output, and based on an instruction change the first channel to a second channel while the content of the first channel is output, acquires information associated with the content of the second channel among the stored information associated with the contents of the plurality of channels from the memory, and decodes the content of the second channel received through the communicator by using the acquired information on the content of the second channel and outputs the decoded content.