Microphones TRIZ Cases

Correspondence analysis identifies weak audio visual signal pairs in headsets, allowing selective augmentation that resolves poor signal intelligibility issues.

A flexible vibration module integrates a piezoelectric composite layer with varying particle sizes to drive display panel vibrations for sound generation.

Integrating high voltage power supplies and wireless circuitry into ear cups enables cable-free operation while maintaining high fidelity sound reproduction.

Stacked composite substrates create nested chambers that reduce package bulk while providing electromagnetic shielding for MEMS sensors.

A piezoelectric speaker mounted on a terminal protective case drives a diaphragm to produce sound waves.

A spheroid speaker uses a Polyethersulfone fabric covering to minimize acoustic loss while distributing sound through angled drivers.

A decremental curve ear unit conforms to the concha for stable attachment.

A speaker frame locking system uses a guided slider and elastic return to secure acoustic enclosures, preventing jamming during manual assembly.

A mobile phone cover with a porous windscreen reduces wind-induced noise by up to 24 dB while preserving sound clarity.

Rear surface sound generating devices vibrate the display panel to project audio forward, eliminating rearward deflection and wall reflection interference.

A transducer package merges acoustic and environmental sensors within a shared port structure to reduce device footprint.

Dual tuned vents equalize air pressure in the distal acoustic volume while filtering specific frequencies to prevent discomfort from sealed designs.

Detecting microphone polarity via signal transmission enables portable devices to interface with any headset design.

Switching unit segments shared channel into independent paths to generate recording signals while maintaining microphone operation.

A low-profile earbud uses a protruding assembly passing through the tragus and anti-tragus channel to house components.

Inner-ear speakers handle front channels while over-the-ear units manage surround signals, resolving uniform distance limitations.

MOSFET circuit design enables power-on switch function without initial power draw, conserving battery life in personal audio devices.

Acoustic detection replaces mechanical buttons to eliminate false positives while maintaining ease of operation.

A packaged microphone uses a lead frame intermediary to mount the die and provide electrical connections on a substrate.

Segmented transducers solve impedance mismatch between air and water, enabling clear omni-directional audio transmission in both media.

A playback device synthesizes external audio with noise cancellation signals.

A metal frame member dissipates heat from an audio driver to the enclosure using a flange structure.

A separate second cavity couples an error microphone directly to the ear canal for adaptive noise cancellation.

Adaptive dual filters update coefficients in noise segments to match channel ratios, offsetting interference and resolving FIR filter approximation errors.

Dual chamber microphone adjusts sensor sensitivity via acoustic tube length differences, expanding dynamic range and signal-to-noise ratio.

A digital audio processor reconstructs head-related transfer functions using external microphones and anatomical structures.

Spring-driven recoil retracts earplugs into a headband-mounted housing, resolving the trade-off between continuous noise protection and user comfort.

A double diaphragm MEMS microphone uses anti-phase oscillation to convert acoustic pressure into a measurable electrical signal.

Low frequency exit channels coupled to side chambers maintain constant wide beamwidth, reducing off-axis lobing and improving sound quality.

A multiplexer merges digital microphone bit streams into one coded signal, reducing manufacturing costs while maintaining high-quality audio transmission.

Sliding sleeves along a deformable band adjust lateral pressure, eliminating complex components and enabling visual recognition of fit settings.

Groove and protrusion features allow self-aligning stacking of audio output devices, reducing manual alignment effort during line array speaker assembly.

Tuned primary and secondary ports create a pressure gradient that attenuates the signal, enabling accurate displacement measurement above 130 dB SPL.

A headset arrangement captures user speech and transmits it to other headsets in a multi-user listening environment.

A belt pack integrates a microphone and loudspeaker directly into its housing to enable wireless audio communication without a headset.

Prehearing analysis separates background noise from conversation signals, resolving the trade-off between attenuation and information preservation.

Conductive frame and insulator structure enclose silicon die diaphragm for compact MEMS microphone packaging.

A capacitive MEMS microphone diaphragm bends under operating bias to create static effective displacement.

A mouthguard apparatus with a lumen and curved indentation creates an acoustic chamber for clear voice capture.

Piezoelectric transducer arrays dynamically select active elements to maintain signal strength across acoustic-electric channels.

A microphone device captures sound via multiple spatial beams and processes audio using a head related transfer function.

A spatial audio processing system applies parametric and beamforming techniques to distinct frequency ranges for optimized output.

An integrated microphone array in a soundbar estimates loudspeaker and listener positions to eliminate manual recalibration after physical changes.

An alignment filter corrects misalignment between reference and error microphone signals in hybrid adaptive noise cancellation circuits.

Dual UWB transceivers create a dedicated wireless link that reduces latency and interference for immersive gaming audio.

A balanced armature driver uses a curved nozzle to direct sound energy into the ear canal while compressed polymer secures magnets for enhanced flux.

A dual-unit earphone design separates binaural recording microphones from a dedicated speech capture unit to optimize audio paths.

A wave field synthesis arrangement generates multiple virtual sound sources to distribute acoustic energy across an extended listening area.

Flat upper insulation layer prevents back plate sagging in MEMS microphones, maintaining air gap and enhancing sensitivity without complex strut forming.