Broadcast System Using Polarized Antennas for Enhanced Image Quality
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Solution Overview
Problem
Current terrestrial digital television broadcasting systems are unable to reproduce higher quality images, and there is a need for a broadcast system that can coexist with existing systems while providing enhanced image quality.
Innovation Solution
A broadcasting transmission system that combines data for ordinary and high-quality image reproduction, using polarized antennas to transmit and receive data, allowing for the generation of transmission data for both polarized antennas, enabling the reproduction of higher quality images while maintaining compatibility with current terrestrial digital television broadcasting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If current terrestrial digital television broadcasting is used, then compatibility with existing systems is maintained, but image quality cannot be reproduced at a higher level
Solution Approach 1:
The broadcasting system is divided into two independent data streams: one for ordinary quality image reproduction compatible with current terrestrial digital television broadcasting, and another for high quality image reproduction. This segmentation allows each stream to be optimized independently while maintaining overall system compatibility.
Solution Approach 2:
Data for ordinary quality image reproduction and data for high quality image reproduction are combined into a single broadcasting signal that can be transmitted through polarized antennas. The combining means merges these two data streams in a way that allows receivers to selectively decode either ordinary or high quality images based on their capabilities.
2Manufacturing precision
If data for high quality image reproduction is transmitted, then image quality is improved, but system complexity increases due to the need for combining and configuring data for polarized antennas
Solution Approach 1:
The polarized antennas serve multiple functions: they can transmit both ordinary quality and high quality image data through the same physical infrastructure. The data configuration means is designed to generate transmission data for polarized antennas that is universally compatible with both current and advanced receiving systems.
Solution Approach 2:
The combining means acts as an intermediary that processes and merges data from two different quality levels before transmission. This intermediary component simplifies the overall system architecture by handling the complexity of data integration in a centralized manner, rather than requiring complex processing at multiple points in the system.
3Productivity
If polarization MIMO transmission is employed, then data transmission capability is enhanced, but the system becomes less compatible with current terrestrial digital television broadcasting receivers
Solution Approach 1:
The system dynamically adapts its transmission mode based on the receiver capabilities. The data configuration means generates transmission data for polarized antennas that can be selectively decoded by receivers. Current receivers will receive and decode only the ordinary quality data portion, while advanced receivers can decode both ordinary and high quality data portions, achieving backward compatibility while enabling enhanced functionality.
Data Source
AI summary
An input unit 21 receives the input of conventional image-quality playback data adapted to terrestrial digital television broadcast and high image-quality playback data. A combining unit 22 combines the conventional image-quality playback data and the high image-quality playback data. A data configuration unit 23, on the basis of combined data obtained by combining the conventional image-quality playback data and the high image-quality playback data by means of the combining unit 22, generates data for one polarized antenna transmission and data for another polarized antenna transmission.