Microphones TRIZ Cases

Opaque lens blocks destructive interference in the diaphragm cavity, smoothing frequency response peaks and dips without attenuating sound pressure level.

Porous grains dissipate sound wave reflections as heat, resolving the trade-off between low-frequency performance and device volume constraints.

A rotating transmission member moves an elevation component to adjust the height of a magnetic levitation speaker while reducing motor load.

A vehicle active noise cancellation controller generates a noise cancellation wave to remove environmental noise at the voice recognition microphone.

A helical silicone thread prevents capillary sweat entry into boom microphones by forming larger drops that drip off due to inertial forces.

A V-shaped bracket with multiple fixing apertures enables versatile speaker mounting configurations.

A coupling capacitor forms between flexible and rigid circuit boards to improve antenna radiation efficiency in compact wireless earphones.

Near-infrared LED illuminates dark environments for the earbud camera, enabling real-time visual data transmission alongside standard audio feedback.

A wireless speaker assembly attaches to existing recessed lighting fixtures using a powerbase module.

An integrated monitor restraint combines health sensors and GPS tracking within a ratcheting cuff to detect medical emergencies and prevent escape attempts.

A beam-forming speaker system uses vertically displaced drivers to direct surround channel information as ceiling reflections.

A speaker assembly uses a light-transmitting plate to reflect sound waves into multiple directions.

A hearing device calculates frequency band-dependent weight factors from outside channel signals to adjust inside channel audio.

Intermediary capacitor buffers energy between storage and piezo MEMS transducer, reducing power loss during voltage conversion.

Acoustic wave simulation generates synthetic audio data to evaluate microphone array geometry, eliminating physical prototype development costs.

A signal processing device computes correlation matrix eigenvectors to estimate relative transfer functions from multi-channel microphone inputs.

Dual noise reduction units and a digital signal processing assembly transform raw audio signals, preserving speech intelligibility in high noise environments.

Stepped openings in an SOI base improve alignment accuracy and enable multiple pad formation for MEMS microphone manufacturing.

An adaptive loudspeaker array directs acoustic lobes via digital signal processing, resolving manual setup time and angle precision trade-offs.

An earpiece inner cylinder maintains a consistent sound guide diameter to ensure unobstructed acoustic wave travel.

A hearing device uses microphone coherence to classify ambient sound environments for active noise cancellation.

Differently dimensioned backplate apertures reduce squeeze film damping in MEMS devices.

A spring-loaded tab rotates to facilitate ceiling speaker passage and secure clamping.

A microphone array captures sound data to localize noise sources, resolving identification difficulties in enclosed areas.

An air-pulse generating device uses a film structure driven by modulation and demodulation signals to produce amplitude-modulated ultrasonic air pressure variations.

A top port MEMS package uses a substrate aperture to couple the microphone to a lid cavity, expanding the acoustic back volume.

A filler structure within a ventilation hole increases acoustic resistance, reducing phase mismatching and improving signal-to-noise ratio.

A data processing device directs sound beams to specific users using a loudspeaker array and digital signal processing.

A compressive member secures an ear module using elastic holding force between the anti-helix and forward wall.

A movable speaker assembly uses a latch and rail linkage to protrude from the device body.

A sound-absorbing layer inside a Helmholtz resonant cavity acts as a low-pass filter, suppressing high-frequency amplitude to widen the operation bandwidth.

A floating waveguide redirects low frequency energy through multiple radiation paths, resolving cone break-up and erratic directivity in the crossover region.

Acoustic noise and vibration sensors filter vehicle heat signatures to reduce false alarms in infrared fire detection.

Audio device processing components deactivate digital signal processors and neural networks based on environmental conditions to conserve battery life.

Asymmetric dipole signals create increased interaural-level differences, resolving narrow sound reproduction in compact devices.

Splitting microphone signals into sub-bands reduces wind noise without degrading spatial audio fidelity or creating audible artifacts.

Adaptive playback equalization uses error microphone feedback to adjust audio signals, resolving static equalizer limitations in changing acoustic environments.

Backplate assembly with laterally extending tabs and insulating mount simplifies production through integrated milling and moulding, reducing distortion risks.

A capacitive microphone uses a surface micromachined diaphragm on a printed circuit board to create an integrated acoustic cavity.

A signal processing circuit generates a feedback anti-noise signal using an ambient microphone to cancel background sounds.

Sound output holes sit between the bezel and housing, preventing interference with the curved flexible display while maintaining precise call audio transfer.

Three dimensional sensor modules detect user location to direct ultrasound beams forming localized audible sound fields.

A signal processing device normalizes and variably weights feature measures from multiple microphones to identify blockage conditions.

Spatial segmentation isolates the biosensor from the tragus-mounted transducer, reducing vibration noise interference for accurate biological data collection.

Comparing feedback signals to inverse transfer function references detects instability conditions before artifacts occur.

A binaural hearing device system selects the microphone with the lower noise level to capture user voice during calls.

Wireless earphones use elastic hooks to clamp the auricle, resolving wire-drag instability.