Broadcast Receiving Apparatus Handling TS and MMT Formats
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Solution Overview
Problem
Current television receivers struggle to provide high-value-added functions, particularly in distributing high-resolution and high-definition video content using broadband networks, as they are limited by existing data broadcasting reception capabilities.
Innovation Solution
A broadcast receiving apparatus capable of receiving multiple digital broadcasting services using different media transport methods, featuring units for decoding and processing video data, creating electronic program guides, and presenting selected content to users, while allowing for user input and control over the display of program information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current television receivers use existing data broadcasting reception capabilities, then basic receiving function is maintained, but high-value-added functions and high-resolution video content distribution cannot be provided
Solution Approach 1:
The television receiver is designed to support multiple broadcasting systems (ISDB and terrestrial digital broadcasting) and multiple media transport methods (TS and MMT) within a single device. The demultiplexer can process both TS and MMT formats, and the system can switch between different receiving modes based on the broadcast signal type, enabling one device to perform multiple functions without requiring separate receivers for different broadcasting standards
Solution Approach 2:
The receiver incorporates dynamic switching capabilities where the demultiplexer and processing units can adapt their operation based on the detected broadcast format. The system dynamically selects between TS-based processing and MMT-based processing paths, and can switch between receiving ISDB satellite broadcasts and terrestrial digital broadcasts, providing flexible adaptability without fixed structural limitations
2Adaptability or versatility
If multiple demultiplexers are added to support both TS and MMT formats, then compatibility with different broadcasting systems is improved, but device complexity and cost increase
Solution Approach 1:
A single demultiplexer is designed to handle both TS and MMT formats by incorporating format detection capabilities and configurable processing paths. The demultiplexer can identify the incoming signal format and switch its operation mode accordingly, eliminating the need for separate dedicated demultiplexers for each format while maintaining full compatibility with both ISDB/TS and terrestrial/MMT broadcasting systems
Solution Approach 2:
The demultiplexer incorporates automatic format detection and self-configuring capabilities. When a broadcast signal is received, the demultiplexer automatically identifies whether it is TS or MMT format and adjusts its processing parameters accordingly, reducing the need for complex manual configuration and external control mechanisms while maintaining format compatibility
3Manufacturing precision
If separate processing paths are created for ISDB and terrestrial digital broadcasting, then processing accuracy is improved, but device complexity increases
Solution Approach 1:
The video decoding system uses dynamic path selection based on the detected broadcast format. When ISDB/TS format is detected, the system activates the TS-specific processing path with appropriate demultiplexing and decoding parameters. When terrestrial/MMT format is detected, it switches to the MMT-optimized processing path. This dynamic switching maintains high decoding accuracy for each format without requiring both complete processing paths to be permanently active simultaneously
Solution Approach 2:
Different processing parameters and algorithms are applied locally based on the specific broadcast format being received. The system optimizes the demultiplexing, decoding, and rendering parameters specifically for each format type (TS or MMT), ensuring that the processing quality is tailored to the requirements of each broadcasting standard without imposing unnecessary complexity from universal one-size-fits-all processing
Data Source
AI summary
A broadcast receiving apparatus includes: a digital broadcast receiver configured to receive digital broadcasting in which contents are transmitted; a network transceiver configured to execute network communication; a data string converter configured to perform a mixing process for creating a new coded data string based on a coded data string of the received contents and a coded data string acquired by the network transceiver; a digital interface configured to output the contents to external equipment; and a controller configured to determine a state of the network communication of the external equipment. The state of the network communication of the external equipment includes a first state in which the network communication is in a communicable state and a second state in which the network communication is in an uncommunicable state. In accordance with the determined state of the network communication, the digital interface performs three types of output operations.