Signal Processing For Reducing Noise TRIZ Cases
- Interferometric Signal Balancing for Swept-Laser Intensity Noise
Active feedback balancing tracks photocurrent drift in interferometric sensing and cuts swept-laser intensity noise without harming signal quality.
- Dynamic Sound Delivery With Noise-Adaptive Multi-Band Gain Control
Ambient noise is detected at the listener side so multi-band gain and dynamic range can be adjusted to keep speech clear in noisy playback.
- Audio Stream Click Detection and Sample Replacement
Delayed sliding-window detection finds short, high-magnitude clicks and replaces affected audio samples with substitute data to preserve sound quality.
- Muting Circuit with Matched DC Offset for Quiet Switching
Matched DC offset generation and HPF filtering keep the output DC level stable during muting, reducing audible switching noise.
- Dynamic Sound Delivery With Ambient Noise Feedback Gain Control
Ambient noise masking is countered by feedback-driven gain control that adjusts playback dynamic range to keep speech intelligible.
- Adaptive Read-Write Parameter Adjustment for Defective Storage Media
A storage device adjusts logical track length and sector location to bypass defective areas on recording media.
- Adaptive Noise Predictive Filter for Inter-Track Interference Cancellation
A data processing system adapts noise predictive filter coefficients using cleaned data to cancel magnetic interference between adjacent storage tracks.
- Zoom Noise Cancellation in Multi-Microphone Audio Systems
Electronic devices with multiple microphones copy zoom noise signals to cancel interference, preserving audio fidelity during lens movement.
- Brush Tool for Audio Editing With Variable Opacity
A visual brush tool selects audio regions with variable opacity to apply editing effects.
- Optical Disc Noise Spectrum Evaluation for Signal Quality
Evaluates optical disc reproduction performance by measuring recorded signal noise and calculating an evaluated value based on frequency characteristics.