Broadcast Receiver Service Map Update via Signal Scanning
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Solution Overview
Problem
Broadcast receiving apparatuses face challenges in maintaining normal service delivery when broadcast signal configurations change, as they rely on pre-stored service map information that may become outdated, leading to system load and processing time issues, and users are unable to determine the cause of service disruptions.
Innovation Solution
The apparatus includes a processor that scans the broadcast signal to determine if signaling information has been updated, updates the service map accordingly, and provides a user interface to inform the user of scanning operations, ensuring continuous service delivery even when signal configurations change.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the broadcast receiving apparatus fully scans the broadcast signal to acquire signaling information, then the service map information is updated, but the system load and processing time increase
Solution Approach 1:
The patent applies partial scanning by selectively scanning only specific frequency ranges or channels where changes are detected or suspected, rather than performing a complete full scan of all broadcast frequencies. This reduces the scanning workload and processing time while still capturing the necessary signaling information updates.
Solution Approach 2:
The system implements periodic scanning at scheduled intervals combined with event-triggered scanning when changes are detected. This periodic approach allows the system to maintain updated service map information without continuously scanning all channels, thereby reducing overall system load while ensuring reliability.
2Productivity
If the broadcast receiving apparatus uses previously stored service map information, then processing time is reduced, but the signaling information may not match the current broadcast signal
Solution Approach 1:
The system employs feedback mechanisms by monitoring broadcast signal characteristics and comparing them against the stored service map information. When discrepancies or changes are detected in the broadcast signal, the system triggers an update scan to refresh the service map, ensuring that the stored information remains synchronized with current signal configurations.
Solution Approach 2:
The service map information management transitions from a static approach to a dynamic one, where the system adaptively adjusts between using stored information for fast tuning and performing scans when changes are detected. This dynamic behavior allows the system to optimize between speed and reliability based on real-time conditions.
3Adaptability or versatility
If the broadcast signal configuration changes, then new service requirements arise, but the outdated service map information prevents normal service provision
Solution Approach 1:
The system performs preliminary scanning actions when changes are anticipated or detected, such as when tuning failures occur or when periodic updates are scheduled. This preliminary action ensures that service map information is refreshed before service disruptions occur, maintaining adaptability to new signal configurations while preserving service continuity.
Data Source
AI summary
A broadcast receiving for updating service map information by scanning the broadcast signal when signaling information included in a broadcast signal has been changed.