Radio Transmitter Selection Using Program Feature Similarity
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Solution Overview
Problem
Users face difficulties in maintaining access to preferred radio stations during longer journeys when leaving the transmission area, as existing technologies do not efficiently suggest alternative stations that match their preferences, leading to manual searches and disruptions in radio station memory.
Innovation Solution
A method that analyzes and compares program features of radio stations, such as music genre, length, and keywords, to suggest alternative stations with high similarity, using a database either locally in the vehicle or centrally, ensuring seamless transitions and preserving user preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual search for alternative radio stations is performed, then users can find stations outside transmission area, but this increases loss of time and reduces ease of operation
Solution Approach 1:
The system performs preliminary analysis of broadcast content to extract program features (music genre, language, time of day, etc.) and stores them in a database before users need alternatives. When the current station becomes unavailable, the system can immediately query the pre-analyzed database for matching stations without requiring real-time manual searching or analysis.
Solution Approach 2:
The patent introduces an intermediary system consisting of a backend server with a database that stores program features of multiple radio stations. This intermediary automatically compares the current station's features with stored features of alternative stations and provides recommendations, eliminating the need for users to manually search and compare stations themselves.
2Reliability
If radio station memory is updated with alternatives, then continuous listening is maintained, but this reduces reliability of original station preferences
Solution Approach 1:
The system dynamically manages radio station memory by maintaining a hierarchy: preferred original stations are stored first, and alternative stations are conditionally stored based on geographic location and reception availability. The memory automatically updates to replace unavailable stations with suitable alternatives while preserving user preferences through weighted scoring that considers both station similarity and user-defined priorities.
Solution Approach 2:
The patent applies local quality by storing different sets of alternative stations for different geographic regions. The system determines the vehicle's location and selectively stores alternatives that are locally available in specific areas, ensuring that the radio memory contains location-appropriate stations without overwriting user preferences for original stations in areas where they remain available.
3Measurement precision
If detailed program features are analyzed and stored, then station similarity comparison is improved, but this increases device complexity and data storage requirements
Solution Approach 1:
The system segments the analysis of radio station features into distinct categories: music-related features (genre, tempo, mood), speech-related features (language, keywords, time of day), and structural features (duration, frequency). Each category is analyzed and stored separately in the database, allowing for efficient retrieval and comparison without requiring complex integrated analysis of all features simultaneously.
Data Source
AI summary
The invention relates to a method for proposing alternative radio transmitters (S2, S3, S4) in a vehicle (10), having the steps of identifying local interferences of the reception of a radio transmitter (S1); determining program characteristics (32) of the radio transmitter (S1), said program characteristics (32) being provided using a method according to one of the aforementioned claims; identifying receivable alternative radio transmitters (S2, S3, S4); comparing the program characteristics (32) of the radio transmitter (S1) with program characteristics (32) of the receivable alternative radio transmitters (S2, S3, S4); and proposing at least one alternative radio transmitter (S2), wherein the similarity between the program characteristics (32) of the alternative radio transmitter and the program characteristics (32) of the radio transmitter (S1) has at least one defined threshold. The aim of the invention is to allow similar radio transmitters to be quickly and easily provided in the event of reception interference of a radio transmitter.