Microphones TRIZ Cases

An acoustic-signal processor analyzes sound vectors from internal microphones to identify the origination space of events within a vehicle cabin.

An intra-aural device uses adaptive filtering and bandwidth extension to enhance speech signals captured via bone conduction.

Equalizing ring-shaped edge diameters via a sandwiched block frame eliminates harmonic distortion from asymmetric diaphragm rolling.

A microphone array with steerable beam directivity captures sound signals from multiple spatial directions.

Dual light source optical microphone uses MEMS gratings and photoelectric modules to generate differential signals for acoustic detection.

Sensors detect acoustic valve states to actuate valves, preventing occlusion and distorted sound perception.

Audio signal processing apparatus modulates beamforming signals to direct sound output toward a listener in three-dimensional space.

Magnetic coupling secures speaker assemblies within a housing recess, preventing loss and damage while maintaining compact in-ear form factors.

Sonic coupling battens bridge the baffle and foam core to resolve the weight versus acoustic resonance trade-off in speaker cabinets.

A MEMS microphone base features a venting groove that expands the back cavity volume to facilitate airflow movement.

An acoustic membrane and vent with dense mesh balance static air pressure while blocking water and dust ingress into the sealed cavity.

A module tester calibrates response select null steering circuits using precision measurement instrumentation.

A hardware timer with high resolution calculates precise playback intervals to synchronize audio signals across paired wireless devices.

A MEMS acoustic sensor routes electrical connections vertically through a perforated back plate to preserve diaphragm freedom.

A microphone array determines sound source direction and distance using spatial signal analysis to isolate target voices from ambient noise.

Boss structure blocks solder flux from entering the sound pickup hole, preventing silence or noise issues in terminal devices.

Folding retaining arms enable one-sided installation of a recessed speaker fixture, eliminating the need for back-side access and reducing mounting complexity.

Leg portions reduce residual stress and prevent back plate deformation, improving impact resistance for MEMS acoustic sensors.

A pressure regulator controls ventilation in an ear mount air chamber to reduce head load while maintaining soft contact feel in the conchal cavity.

A wearable device uses a divider to distribute signals between front and rear antennas for robust connectivity.

A crosstalk compensation circuit adjusts resistor divider settings to establish a consistent ground reference for headset audio signals.

Flexible substrate integrates low and high wavenumber sensor arrays with RAM to reduce wind tunnel testing costs.

Ear-level module with priority logic manages diverse audio sources through multi-mode signal processing and secure wireless links.

Injecting a low value current into the USB ID line exploits JFET voltage drops to identify connected accessories.

Electromagnetic induction replaces wired connections between earphones, eliminating crosstalk and periodic noise from digital signal lines.

Inverting microphone placement behind the auricle minimizes acoustic feedback loops and howling effects, maximizing amplification gain in noisy environments.

A 3-tuple coprime microphone array separates speech signals using point-by-point multiplication and cube-root operations.

Controlled current ramping minimizes high-frequency noise during power transitions, preserving acoustic measurement accuracy in compact MEMS devices.

Segmented capacitor plates and vertical stacking reduce stress vulnerability while maintaining capacitance measurement accuracy.

A dipole acoustic radiator directs sound upward along a main axis to reproduce height channels in soundbars.

Segmented decorative panels enable customer-defined graphics on loudspeaker enclosures while preserving acoustic integrity.

A speaker array rotates to align with detected sound sources, directing acoustic energy toward listeners.

Direction of arrival information guides a nullformer to isolate the target speech signal, reducing calculation load during independent component analysis.

Cross-correlation analysis distinguishes failed microphones from wind noise interference, preventing false triggers in portable communication devices.

A microphone test module uses an airtight outer chamber and a sound chamber coupled via a noise suppression mechanism.

Convolves impulse responses with sound signals to generate control signals that reproduce early reflection sounds.

Separate headset units eliminate sharing inconvenience by delivering simultaneous audio through a rotatable guiding mechanism.

Feature extraction reduces power consumption below 10 microwatts by transmitting essential audio characteristics instead of full digital streams.

Segmented elongated vents equalize pressure across diaphragms to prevent biasing and leakage noise from ambient fluctuations.

Antiphase speakers generate disruptive interference to cancel speech sound energy, preventing leakage of private communications through an air-tight seal.

Resolves personalization complexity by adjusting microphone array directionality based on user visual focus and acoustic signatures.

A cylindrical grille utilizes elastic deformation to bond flat metal plates into a stable protective housing.

A signal processor selects optimal beamformer outputs using speech leakage estimation modules to enhance audio clarity.

A sound reproducing device uses parametric speakers and drivers to direct audio beams toward detected persons.

An adaptive ambient sound control circuit dynamically adjusts noise cancellation parameters using real-time leakage detection from internal and external microphones.

Pivot and rotation mechanisms maintain microphone position stability, reducing signal modulation during user movement.

A multi-MEMS module integrates two acoustically coupled chips and an ASIC for signal evaluation.

Acoustic simulation replicates eardrum characteristics to generate inverse phase sound data, resolving microphone placement complexity.

Delaying analog speech signals compensates for digital-to-analog conversion latency, enabling synchronized noise cancellation across mixed microphone arrays.

Flexible coated wire with embedded magnets couples to Hall effect sensors for hands-free audio playback management.