Radio Data System/Radio Broadcast Data System TRIZ Cases
- Single FM Tuner Station List Using Pre-Cached RDS Data
Pre-cached RDS/RBDS station data lets a single FM tuner show frequencies and program info quickly without long mute periods.
- DARC Demodulation Circuit Using Orthogonal 76 kHz Signal Extraction
Orthogonal 76 kHz oscillations and low-pass filtering recover DARC data from FM multiplex signals while suppressing harmonics and noise.
- RDS Frequency Switching Using Accumulated AF Lists
By storing and reusing accumulated AF lists, RDS switching avoids futile frequency changes and reduces sound breaks in weak signals.
- Multi-Device Connection Prioritization Under Communication Resource Limits
A device selects a limited set of external connections by signal strength or distance to preserve battery, antenna, and time resources.
- Encrypted Radio Broadcast Control for Large IoT Device Fleets
Encrypted radio broadcasts let backend automation securely send one-way control messages to many IoT devices across wide areas.
- Vehicle Radio Data Reception Using Location-Specific Emergency Bands
Segmented FM frequency bands let vehicles receive broad and location-specific emergency data without losing broadcast compatibility.
- Vehicle RDS/RDS2 Data Broadcasting Relay for FM Null Sections
Peer vehicles store and relay RDS/RDS2 data through FM null sections, preserving station and song information when direct reception fails.
- Transmitter Control for Multi-Frequency RDS/RDS2 Data Coordination
Transmitters compare RDS/RDS2 data across frequencies and stop duplicates to improve coverage and receiver reliability.
- RDS/RDS2 Data Broadcasting via V2V Relay in FM Null Points
Stored RDS/RDS2 data is relayed vehicle to vehicle when FM reception fails, preserving station names and lyrics.
- User Equipment Node Mapping for mmWave Device Discovery
This case uses map information and radio-channel analysis to build shared node maps for more reliable V2X beamforming.
- Geographic Content Delivery via Tuner Signal Verification
A tuner verifies recipient location by detecting local over-air signals to enable network content delivery.
- Radio Broadcasting Reception Device Cross-Fade Switching
A radio broadcasting reception device adjusts cross-fade duration based on source and destination standards to switch services smoothly.
- Radio Record Module Automatic Recording via RDS Data Decoding
A radio record module decodes received RDS data to assert a record signal for associated audio content.
- RDS Decoder Extrema Search for DSP Code Size Reduction
A method calculates integrals over moving intervals to search for extrema in RDS signals.
- Multi-Channel RF Transmitter for Fading Mitigation
A transmitter modulates audio onto multiple RF channels to enable automatic channel selection.
- Digital Broadcast Receiver Channel Update Logic
A digital broadcast receiver scans channels and updates preset memory based on reception strength thresholds.
- Broadcast Receiver Station List Deduplication via PI Code and Frequency
A broadcast receiver generates a station list by registering unique entries based on frequency and country code.
- Media Device Enhanced Data Retrieval via Broadcast Identifier
A media device transceiver retrieves enhanced data from a server using a broadcast identifier to support varied content types.
- Radio Station Designation Detection Using Temporal Weighting
A radio receiver assigns weighting factors to data content elements based on temporal occurrence frequency to identify station designations.
- Time Modification System for Hybrid Radio Signal Synchronization
A time modification system synchronizes audio signals using adjustable delay and duration modules.
- Radio Station Name Decoding via Dual Sampling Frequency
A radio receiving system decodes digital station names using distinct sampling frequencies for preselected versus other detected stations.
- Radial Contour Estimation for Radio Station Listening
Radial contour estimation structures radio station listening areas as unique radii segments to enable efficient listener location comparison.