Broadcast Receiver Rescanning via Injection Level Detection
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Solution Overview
Problem
Existing digital broadcasting systems lack compatibility with advanced UHD services while maintaining support for existing digital broadcasting, necessitating a solution that allows seamless transition and compatibility.
Innovation Solution
A broadcast receiving apparatus equipped with tuners and controllers to identify injection levels, facilitating a rescanning process for compatible reception of both existing and advanced digital broadcasting services, including support for UHD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an advanced digital broadcasting system is implemented to provide UHD services, then broadcasting quality and functionality are improved, but compatibility with existing digital broadcasting systems deteriorates
Solution Approach 1:
The broadcast receiving apparatus is designed with multi-functional capability to receive both advanced digital broadcasting signals (including UHD) and existing digital broadcasting signals. The controller automatically identifies the signal type and performs appropriate processing, making the device universally compatible across different broadcasting standards without requiring separate receivers for each system.
Solution Approach 2:
The system performs preliminary scanning to detect injection level information in transmitted signals before full reception processing. By提前 identifying the presence of advanced broadcasting signals through injection level detection, the apparatus can prepare appropriate reception parameters and maintain compatibility with existing systems while seamlessly transitioning to advanced services when detected.
2Measurement precision
If a rescanning process is implemented to identify injection levels, then reception accuracy of advanced broadcasting signals is improved, but processing time and complexity increase
Solution Approach 1:
The system extracts only the critical injection level information from the transmitted signal during a simplified scanning process, rather than performing complete signal analysis. By extracting just the necessary injection level parameter, the apparatus achieves accurate identification of advanced broadcasting signals while minimizing the time and computational resources required for the scanning operation.
Data Source
AI summary
A broadcast receiving apparatus is configured to include: a tuner configured to receive a transmission wave, information regarding an injection level being stored in the transmission wave; and a controller. The controller is configured to identify that a rescanning process is required by using the information regarding the injection level contained in the transmission wave received by the tuner, the rescanning process being a setting process for receiving broadcast by the tuner.