Microphones TRIZ Cases

A loudspeaker box uses a positioning mechanism to adjust acoustic elements relative to the sound source for customizable radiation patterns.

Stacked rigid-flexible circuit board eliminates secondary boards, reducing signal distortion and improving reliability.

A feedback noise reduction system switches filters based on acoustic channel morphology to cancel environmental noise.

A signal processing apparatus selects and combines delayed acoustic signals from multiple sound acquisition units based on target position.

A speaker housing assembly integrates with deck drainage systems using sealed threaded engagements and mounting brackets.

Central control circuit delineates occupant and acoustic zones to prioritize sensor installation in high-frequency use areas.

A direction-of-arrival estimation device uses acoustic intensity vectors to derive sound source location with improved accuracy.

A dual-branch hearing aid architecture separates wind detection from signal transmission to minimize processing delay.

Audio fingerprint matching synchronizes viewer-effect signals with media content, resolving accuracy issues in complex audio environments.

Dual microphones evaluate utterance volume to generate feedback signals, resolving information loss about speaking levels while preventing voice leakage.

A fixing member with a sound channel connects a microphone to a housing through hole, resolving positional misalignment between emission and receiving openings.

Segmented piezoelectric cantilever beams deflect to produce high sound pressure levels without increasing acoustical leakage between front and rear volumes.

Processor segments audio signals into frequency bins to select minimum level bins from microphone subsets.

Two-stage FIR filter coefficient calculation determines frequency domain weights then time-domain coefficients.

Internal light sources cure adhesive at electronic device joints, preventing bond failures from inaccessible curing areas.

A vehicle microphone apparatus uses a grille cover and acoustic membrane to transmit ambient sound while protecting the internal element.

A noise reduction system extracts desired speech signals using keyword identification and directional analysis.

A wireless terminal uses automatic synchronization to maintain internal time references without a master device.

An audio capturing device with multiple microphone pairs monitors input channels to detect trigger phrases and initiate voice recognition sessions.

Earbuds use bone conduction sensors to detect facial vibrations for discreet non-verbal input, avoiding conversation disruption.

A MEMS sound transducer uses a position sensor and electronic control unit to adjust piezoelectric actuator operation based on membrane deflection signals.

Staggered back plate holes prevent dust entry while maintaining structural strength, avoiding smoke oil condensation that causes self-starting phenomena.

An umbrella housing redirects liquid flow away from the acoustic mesh, reducing pressure on the structure and preventing internal component damage.

An adaptive gain filter adjusts weights based on detected ear coupling conditions to generate anti-noise signals.

Dual microphone arrays and digital signal processing generate directional audio signals for bionic hearing headsets.

An L-shaped neck and clamping block enable easy disassembly of the earphone body from the installing base, resolving dust accumulation issues.

A microphone assembly detects speech characteristics to authenticate users without requiring tactile interaction.

An asymmetric phase plug uses concave depressions to channel sound waves, preventing diaphragm impingement while maintaining high-frequency output.

An extensible pressure rod inside a hollow main frame rod elevates the upper frame rod, resolving shaking during height adjustment.

A speaker assembly uses a magnetic driver to vibrate a diaphragm and expel water through a semi-porous mesh.

A single housing combines LED lighting with a low directivity loudspeaker assembly to deliver acoustic signals.

A broadcasting system captures live audio from coaches' communication units and helmet receivers for television transmission.

Dual earbuds compare audio quality metrics to select the superior signal source, resolving noisy environment detection reliability while conserving power.

A wireless microphone uses two push-to-talk buttons to activate separate Bluetooth channels for distinct remote devices.

A sound producing apparatus generates audio via pulse amplitude modulated signals exceeding the maximum audible frequency.

Induction circuits bypass soft tissue absorption to maintain stable high bandwidth audio transmission between wearable devices.

Measuring speaker impedance detects ear contact pressure to adjust audio output.

A sound field forming apparatus selects drive speakers based on listener position to synthesize wave fronts with high reproducibility.

A wireless earphone body features a concha contact surface with a convex positioning portion and laid slot for anatomical engagement.

A speech signal processing apparatus selects between mouth and eardrum audio signals to maintain clear voice transmission.

Dual compression driver with an annular exit merges acoustic signals from internal magnets to radiate through a radial pathway.

An in-ear audio device uses personalized head-related transfer functions to augment external sound signals for transparent listening.

An anechoic chamber headset uses active noise control to isolate audio signals within a sealed acoustic environment.

A variable-directivity MEMS microphone integrates dual acoustic transducers and a signal processing chip to generate directional output signals.

A microphone device uses two sound receiving modules with inverse phase outputs to cancel out environmental noise signals.

Segmented plug and clamp systems simplify cable installation while maintaining fire-resistant sealing in ceiling openings.

A multi-crossover acoustic output device assigns distinct frequency bands to speaker units via separate crossover circuits.

A display apparatus uses its panel and circuit board as vibration plates to generate directional sound waves.

A dual-channel active noise control module in a helmet cancels engine and wind noise while preserving rider hearing safety through opposing feedback loops.