4K Broadcast Reception With 2K Fallback Switching
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Solution Overview
Problem
Existing digital broadcasting systems face challenges in maintaining compatibility with existing services while transitioning to advanced digital broadcasting services, such as UHD broadcasting, without disrupting the viewing environment.
Innovation Solution
A broadcast receiving apparatus is configured to receive both 4K and 2K broadcasting services simultaneously, with a display controlling method that allows for seamless switching between the two services in case of reception or display defects, using either the broadcast transmission path or IP simultaneous broadcasting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If 4K broadcasting service is received and displayed, then higher resolution and advanced digital broadcasting functionality are achieved, but compatibility with existing digital broadcasting service and viewing environment maintenance deteriorate
Solution Approach 1:
The system dynamically switches between 4K and 2K broadcasting services based on reception quality. When 4K service experiences reception defects, demodulation failures, or display issues, the system automatically transitions to 2K service to maintain continuous viewing. This dynamic adaptation resolves the contradiction by allowing the system to operate at high resolution (4K) when conditions permit, while seamlessly falling back to compatible lower resolution (2K) when needed, thus achieving both advanced functionality and existing service compatibility.
2Adaptability or versatility
If advanced digital broadcasting service (4K) is implemented, then higher functionality and resolution are achieved, but system complexity and difficulty of maintaining existing service environment increase
Solution Approach 1:
The system merges 4K and 2K broadcasting reception capabilities into a single integrated architecture. The broadcast receiving apparatus simultaneously supports both advanced 4K service and existing 2K service through unified reception, demodulation, and display switching mechanisms. This merging approach reduces overall system complexity compared to maintaining separate independent systems, while providing advanced functionality through the 4K capability.
Solution Approach 2:
The system introduces an intermediary switching mechanism that mediates between 4K and 2K service paths. When reception or display defects occur in 4K service, the intermediary switching unit automatically redirects the signal flow to 2K service, ensuring continuous operation without requiring complex manual intervention or system reconfiguration. This intermediary approach simplifies the management of multi-service complexity.
3Manufacturing precision
If 4K broadcasting service is prioritized, then advanced service quality is improved, but reliability of continuous viewing experience deteriorates due to potential reception or display defects
Solution Approach 1:
The system implements beforehand cushioning by preparing 2K service as a backup pathway in advance. Before 4K service defects occur, the system already has the 2K reception and display paths ready and configured. When 4K service experiences reception defects, demodulation failures, or display issues, the switch to 2K service is immediate and seamless, ensuring viewing continuity without interruption. This prior preparation resolves the reliability issue while maintaining 4K service quality priority.
Data Source
AI summary
A display controlling method for a broadcast receiving apparatus allowed to receive IP simultaneous broadcasting of a 4K broadcasting service via a communication transmission line, in which simultaneous broadcasting of the 4K broadcasting service and a 2K broadcasting service is executed by a broadcasting wave, is configured to: receive and demodulate the 4K broadcasting service, and display a broadcasting program of the 4K broadcasting service; and select and execute one display switching process of first and second display switching processes in accordance with priority order in a case where a defect occurs in reception, demodulation, or display of the 4K broadcasting service, the 2K broadcasting service being received and demodulated to display a broadcasting program of the 2K broadcasting service in the first display switching process, the IP simultaneous broadcasting being received and demodulated to display a program of the IP simultaneous broadcasting in the second display switching process.