Single FM Tuner Station List Using Pre-Cached RDS Data
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Solution Overview
Problem
In single FM tuner systems, users face discomfort due to the lengthy time required to acquire and display station information, such as program service names, which degrades listening comfort as the system must mute for extended periods to receive additional station data.
Innovation Solution
The method involves receiving RDS/RBDS data, extracting frequency and additional information like PTY and PI codes, and displaying this information in a list, allowing users to select stations based on clear text representations of these codes, thereby providing a better overview of available frequencies and their corresponding programs without significant degradation in listening experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the system waits to receive complete station information (program service names) before displaying it, then the information displayed is complete and accurate, but the time required to display station information becomes lengthy, degrading listening comfort
Solution Approach 1:
The system performs preliminary actions by receiving and storing RDS data blocks in advance during normal tuning operations. When a station list is requested, the pre-received data blocks containing station information are already available in memory, eliminating the need for lengthy real-time data acquisition and enabling immediate display without muting the audio output.
2Loss of information
If the system mutes audio for extended periods to receive additional station data, then complete station information can be acquired, but listening comfort is significantly degraded
Solution Approach 1:
The system accumulates RDS data blocks during normal operation before they are needed for display. This preliminary data collection ensures that when the station list function is activated, all necessary information is already cached in memory, eliminating the need to mute audio for data reception and maintaining continuous listening comfort.
3Productivity
If the system displays only basic frequency information, then the display is simple and quick to update, but users lack detailed station information for informed selection
Solution Approach 1:
The system pre-receives and stores multiple RDS data blocks containing detailed station information including program service names, alternative frequencies, and other metadata during normal tuning. When the station list is requested, this pre-cached detailed information is immediately displayed, providing both speed and comprehensiveness without trade-off.
Data Source
AI summary
Embodiments are disclosed of methods and systems for providing information in a single FM tuner system. An example method according to the disclosure provides station information in a single FM tuner system, and comprises receiving radio data system (RDS) data/radio broadcast data system (RBDS) data by the single FM tuner system; extracting frequency information regarding receivable stations from the received RDS/RBDS data and displaying a list of the receivable frequencies; extracting additional information regarding the receivable stations from the received RDS/RBDS data, and displaying the extracted additional information regarding the receivable stations in correspondence with the respective receivable frequencies in the list. Further a single FM tuner system is provided for carrying out the method.