Microphones TRIZ Cases

Dual Bluetooth and Ultra Wide Band connections enable lossless audio data transmission between wireless earphones and source devices.

Audio processing system adjusts microphone signal weights based on lens attitude to synthesize target audio.

A vehicle controller generates noise canceling signals while selectively playing warning sounds based on detected sound waveforms.

High-frequency processing with programmable bi-quadratic filters reduces latency below 2.5 microseconds for effective noise cancellation.

A MEMS microphone chip uses a notched support column to maintain structural integrity while allowing airflow passage.

Phase-shifted comb filtering suppresses off-axis noise while maintaining on-axis signal integrity for improved angular discrimination.

Detection circuit resolves compatibility issues by deriving impedance and polarity values through comparator-based feedback loops.

A lateral mode capacitive microphone glides a movable membrane parallel to a fixed backplate to vary mutual capacitance.

A sidetone generation circuit dynamically adjusts gain based on voice activity and ambient noise levels.

Processor mixes left and right audio channels using adjustable ratios to drive four independent speakers for precise sound localization.

Elastic portions in headphone brackets deform to match user head shapes, eliminating gaps between ear cushions and the head.

Tuning cavities extend sound transmission paths to increase sensitivity differences in directional MEMS microphones.

Distributed illumination sources along the headset cord display status semaphores, resolving visibility conflicts between wearer and surrounding people.

Concave-convex structure in loudspeaker module housing increases front acoustic cavity volume, suppressing resonance and airflow sound.

A microphone body switches between sleeping and operating modes using a control module to conserve energy.

A beamforming microphone array determines a noise field map by measuring ambient sound levels across a room.

An adjustable microphone boom arm integrates a name tag display to prevent cheek contact noise while enabling easy personalization.

Audio system updates acoustic transfer functions using direction of arrival estimation and beamforming for wearable devices.

Sigma-delta modulator digital filters in an FPGA replace analog circuitry, resolving stability and flexibility trade-offs while reducing power consumption.

A hearing protector resolves front-back ambiguity by applying spectral filtering to rear channel signals, enabling accurate quadrant determination.

Recessed microphones on a spherical base capture omnidirectional sound while maintaining equal intervals to improve resolution without enlarging the device.

Non-circular perimetral release holes smooth the etch front to reduce stress concentration and prevent diaphragm failure under high static loads.

Terminal unit stores multiple mix transmission data sets to eliminate reconfiguration time during performances.

A microphone applies decimation synchronization to clock signals, enabling efficient acoustic event detection within mobile hardware.

Eco cancellation hardware acquires analog media signals from a digital signal processor to enable precise voice command recognition in noisy vehicle environments.

A directivity adjustment device modifies speaker array beam patterns based on detected listener distance to maintain acoustic balance.

Segmented lifting structures decouple force transmission from deflection, reducing acoustic distortion in MEMS loudspeakers.

Angled internal channels in the earphone housing constrain the cord to prevent tangling and dangling during storage.

A dome diaphragm and phasing plug generate a 360° radiation pattern for uniform sound coverage.

A segmented cantilever beam with a localized piezoelectric actuator drives a composite vibration structure to expand the sounding area.

Segmenting the ear-hook earphone into detachable modules resolves adaptability contradictions by allowing users to configure components for specific scenarios.

Orientation sensors adjust beamforming weights in real time to suppress background noise and maintain voice clarity during device movement.

Tuned beamforming parameters compensate for non-optimal microphone placements to reduce wind noise while maintaining device integration.

Creating a differential DC voltage potential between microphone and driver grounds enables aviation headsets to draw power without bulky control box batteries.

Flexible magnetic earphone cable holder prevents entanglement by securing wires to garments via clamping ends and central winding surface.

Insert molding overmolds cosmetic material around mated earbud sub-enclosures to create a seamless housing surface.

Active feedback circuit drives variable impedance to maintain desired DC voltage, eliminating high-pass filters and reducing noise in microphone bias circuits.

Dynamic switching between beamforming and single microphone modes reduces wind noise amplification while maintaining speech intelligibility.

Elastic members set lower mechanical impedance than ear cartilage at 200 Hz to 1000 Hz, ensuring efficient vibration transmission while minimizing device noise.

A self-organized acoustic signal cancellation system calculates and applies interference signals using electromagnetic wave propagation.

A method removes redundant microphone output signals from an audio mixer input channel to optimize bandwidth usage.

Processor-driven beamforming filters control loudspeaker directivity, resolving diffuse sound issues in home audio setups.

An integrated IC package uses a pressure sensor to measure internal sound pressure and adjust amplifier drive signals for loudspeakers.

A segmented acoustic valve combines a rigid perforated plate and mesh to block impulse sounds above 130 dB while preserving natural hearing perception.

Segmented sound delivery assemblies clip to headwear crowns, positioning outlets near ears while preserving ambient sound awareness.

Symmetrical earpiece mold with dual protrusions and flexible tube adapters eliminates separate left-right designs, reducing manufacturing costs.

An audio signal processing apparatus generates directional output using omni-directional microphones and cross-correlation analysis.

A binaural system processes high and low frequency components differently to enhance noise suppression while preserving spatial cues.

A piezoelectric micro speaker uses a piston diaphragm and bar to amplify membrane vibration.