Automatic Frequency Control Details TRIZ Cases
- Otological Receiver Resonance Tuning for Stable Carrier Reception
Feedback excitation tracks a vibration receiver's natural resonance to retune carrier reception in otological devices with low power use.
- Antenna Tuning Circuit Using Switched Positive Feedback
Switched positive feedback lets the antenna tuning circuit self-oscillate near the target frequency, avoiding a separate oscillator and extra parts.
- Differential Receiver Phase-Domain Frequency Offset Compensation
Phase-domain tracking compensates frequency offset in differential receivers with lower complexity, lower power use, and wider estimation range.
- Iterative Frequency Offset Estimation for Low-Complexity PSS Detection
Iterative PSS correlation narrows frequency offset hypotheses, cutting receiver complexity while improving offset estimation in multipath channels.
- Radio Receiver Auto-Tuning via Switched Feedback Oscillation
Switched positive feedback creates a tuning-frequency oscillation for automatic receiver tuning without a precise oscillator or added circuit complexity.
- Baseband LSI Time Sharing for Application Processor Synchronization
Time information from the baseband LSI lets the application processor correct clock drift, prevent buffer overflow, and sustain voice and image reception.
- Differential Receiver Phase Tracking for Frequency Offset Compensation
Phase-domain tracking compensates frequency offset in differential receivers while cutting complex operations, power use, and fading-channel loss.
- Timing Recovery Loop Detection of Large Carrier Offsets
Predetermined carrier offset shifts let a timing recovery loop lock quickly, enabling fast symbol synchronization despite large frequency mismatches.