Infotainment Broadcast Receiver Metadata Accuracy
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Solution Overview
Problem
Broadcasters' non-adherence to Radio Data Systems (RDS) data feed guidelines leads to incorrect displays of station names and metadata in infotainment systems, causing inaccuracies in user reception.
Innovation Solution
A broadcast receiver with tuners and controller circuits that store metadata, detect sequences, count occurrences, and determine station names by setting thresholds and using graph theory to merge and reduce metadata sequences, ensuring accurate station name identification and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If broadcasters do not adhere to RDS data feed guidelines, then station names and metadata may be transmitted with errors or inconsistencies, but the receiver still needs to display accurate station information to users
Solution Approach 1:
The receiver performs preliminary actions by storing multiple metadata sequences and counting their occurrences before determining the final station name. This advance preparation allows the system to filter out erroneous metadata and select the most reliable station name based on frequency analysis, thereby ensuring accurate display even when broadcasters do not consistently follow RDS guidelines
Solution Approach 2:
The system implements feedback by continuously monitoring metadata sequences, counting their occurrences, and using this information to determine the most reliable station name. The feedback loop allows the receiver to adapt to inconsistent broadcaster transmissions by selecting metadata that appears most frequently, thus maintaining reliable and accurate station information display
2Measurement precision
If the receiver stores and analyzes multiple metadata sequences with occurrence counting and threshold filtering, then the accuracy of station name determination improves, but the device complexity increases
Solution Approach 1:
The metadata processing system is segmented into distinct functional modules: a storage module for maintaining multiple metadata sequences, a counting module for tracking occurrences, a threshold evaluation module for filtering, and a determination module for selecting the final station name. This segmentation makes the complex processing system more manageable and implementable while maintaining high accuracy in station name identification
Solution Approach 2:
The system uses parameter changes by introducing occurrence counts and threshold values as additional criteria for metadata evaluation. By changing the parameters from simple metadata storage to frequency-based analysis with configurable thresholds, the system achieves higher accuracy in station name identification while providing flexibility in adjusting the complexity level according to specific application needs
Data Source
AI summary
A receiver (10) includes one or more tuners (12) and one or more controller-circuits (28). The one or more tuners (12) are operable to receive broadcast-signals (14) from transmitters. The broadcast-signals (14) include metadata (16) that includes the broadcast-station-name (18). The one or more controller-circuits (28) are in communication with the one or more tuners (12). The one or more controller-circuits (28) store the metadata (16) in a first-memory-location (32), detect metadata-sequences (38) based on the metadata (16) stored in the first-memory-location (32), count occurrences (40) of each metadata-sequence (38), determine whether the count of occurrences (40) of each metadata-sequence (38) is greater than a first-threshold (42), determine the broadcast-station-name or its sequences (18) and store the broadcast-station-name (18) in a second-memory-location (44). A method (100) of operating a receiver (10) is also provided.