Sound Producing Devices TRIZ Cases
- Polymeric Holding Device Spring Section for Trim Panel Detachment
A polymeric holding device uses a spring section to expand parallel to trim panel deformation, maintaining secure attachment of electronic units.
- Dual-frequency fish finder alternating transmission cycles
Alternating dual-frequency transmission cycles in a fish finder suppresses interference noise, enhancing echo clarity for accurate detection.
- Active Noise Cancellation Howling Suppression via Gain Enhancement
Linear filter extracts howling components from error signals while gain enhancement deemphasizes non-howling content to prevent runaway amplification.
- Microperforated Acoustic Panels with Oriented Fiberglass
A microperforated wood veneer surface layer bonded to oriented high-density fiberglass absorbs sound energy through viscous friction and thermal conduction.
- Sound Processing Device for Flexible Reproduction via Space-Adaptive Parameters
A sound processing device adjusts acoustic parameters based on the intended reproduction space to generate customized audio data.
- Thin Film Resonators for Speaker Port Turbulence Reduction
Flexible thin film resonators minimize vortex shedding and turbulence in speaker ports, improving sound quality without adding device weight.
- Metamaterial Acoustic Barrier Using Vortex Diodes for 3D Integration
Vortex diodes redirect acoustic energy through circulation elements to attenuate sound, enabling integration into three-dimensional components.
- Active Noise Cancellation for Micro Device Fan Cooling
A speaker generates masking sound to cancel fan noise in micro devices.
- Sound Masking for White Goods Using Predictive Motor Noise
A white good system predicts motor noise and combines it with plain music to create a comfortable ambient sound.