Microphones TRIZ Cases

A two-scale microphone array separates wind noise from acoustic signals using closely spaced subarrays.

Audio signal processing apparatus uses extended mode matching beamforming to generate precise sound fields on curved surfaces.

A bone conduction transducer generates mechanical vibrations to offset noise components in implantable hearing systems.

Elastic membrane button seals hearing devices against humidity and grease ingress without compromising acoustic transmission or user interface operation.

Earloop microphone uses three-dimensional spacing to create phase differences for sound source identification while reducing headset size.

Information processing apparatus generates target subject emphasis sound based on device and subject positions.

Audio sensors triangulate spill locations and match acoustic signatures against a database to resolve detection accuracy versus system complexity.

Interference-fit adapter resolves poor audio quality and comfort by enabling secure aftermarket component integration.

A direction detection device uses microphone arrays to separate audible signals from external noise.

A loudspeaker assembly uses a curved ground plane to shape acoustic output and distribute sound energy evenly across the listening area.

An ear-worn device detects speech reverberance to apply selective equalization or phase inversion for precise sound reproduction.

A dual microphone sound processing apparatus detects and reduces short-term noise from lens driving mechanisms.

A speaker array apparatus adjusts output angles to direct sound beams toward a ceiling for reflection.

Video tracking aims microphone arrays at speakers, reducing background noise interference.

Earphone wind noise recognition uses coherence analysis between internal and external microphone signals to identify acoustic interference patterns.

Merging multiple speakers into one unit, this system tilts vertical panels to create ambient surround sound without complex setup.

Asymmetric microphone spacing minimizes crosstalk, resolving the trade-off between front direction accuracy and spatial consistency.

A MEMS loudspeaker arrangement uses a series configuration where one unit generates sound waves while a downstream unit amplifies them.

Real-valued attenuation factors in frequency-domain beam focus spectra compensate for microphone tolerances and wind buffeting to maintain signal quality.

Reflowing phosphosilicate glass layers rounds sharp MEMS diaphragm corners, reducing stress concentration and improving robustness under pressure.

Compensating noise level differences between multi-channel signals before training a neural network model reduces voice distortion and residual noise.

Position-based renderer weighting resolves the trade-off between rendering quality and system complexity in multi-renderer audio processing.

Radially twisted phase leveling channels equalize path lengths to reduce distortion and enhance high-frequency sound reproduction.

A MEMS magnetometer harvests magnetic and vibrational energy within a hearing aid receiver.

Motion sensor triggers wake signal transmission, resolving energy consumption versus remote access trade-offs.

An adaptive filter learns coefficients only when target sound dominates, correcting frequency distortion from reflected waves.

Rotating perforations in a dynamic loudspeaker grille indicate system status and optimize sound transmission.

Radial dividing structures increase vibrating space to boost volume output and low-frequency extension.

A semiconductor device uses a low-temperature oxide layer to protect gold metal layers from chromium diffusion during manufacturing.

A microphone module uses double-sided tape for fixation and a conductive member for grounding.

A wireless speaker features a detachable outer cover that mounts external electronic elements like lights or routers directly onto the housing.

A microphone array noise suppression system estimates noise field isotropy using power spectral density differences between microphone pairs.

Anti-stick structures on the backplate prevent membrane adhesion, maintaining sensitivity and reliability in MEMS microphones.

Interchangeable wireless surround speakers use rechargeable batteries and inductive charging for continuous audio operation.

Power spectrum analysis of feedback microphone signals distinguishes in-ear states from out-ear conditions, reducing misoperation rates and power consumption.

Sensor fusion computes aggregate metrics from acceleration and magnetic field data to detect installation position, resolving audio channel delivery accuracy.

Frame pipe conduit with mesh-covered holes relieves internal pressure buildup while blocking water ingress to protect acoustic components.

Integrating folding and longitudinal revolution mechanisms into one link portion reduces part count and complexity while maintaining design flexibility.

A loudspeaker system uses phase-altering lateral sound radiation from a side exit chamber to enhance directivity across the frequency range.

Curved speaker arrays maintain differential distances below half the wavelength to suppress peak and dip distortions in high frequency sound pressure.

A sound processing apparatus adjusts optimal receiving directions automatically to capture clearer audio signals from multiple microphones.

A feedback microphone positioned behind a speaker diaphragm captures acoustic signals for active noise cancellation.

A tracheostomy alarm analyzes respiratory sound frequencies to detect phlegm congestion and issue suction alerts.

A vehicular voice input unit adjusts microphone directionality and gain levels to optimize acoustic capture for specific seats.

A security hub records ambient sounds and plays them back through speakers to simulate occupancy.

Scalar gain adjustment on audio signals prevents hearing loss without microphone processing.

Audio actuators vibrate elevator car components to project clear directional audio cues into the cabin interior.

Nested dual capacitors share a vibration electrode to cancel internal Brownian motion noise, improving signal-to-noise ratio without increasing device size.

External heat conduction through a dedicated member dissipates motor and circuit heat, preventing overheating while allowing high power usage.

Wireless earbuds rest on a neck-worn cradle that charges them through contact terminals, eliminating tangled cables.