Microphones TRIZ Cases

Applying reactive current during non-operating intervals balances heat input, reducing low-frequency noise and improving measurement accuracy.

Guide device transmits real-time augmented video and audio data to user devices, enabling interactive remote experience without physical presence.

Integrating a loudspeaker assembly within an LED bulb structure eliminates complex cable connections required by external sound systems.

A MEMS acoustic sensor merges dipole and omnidirectional signals to generate stable directionality patterns across frequencies.

A hybrid speaker array combines higher order and general speakers to reproduce sound fields across distinct spatial regions.

Segmented diaphragm with suspended ends overcomes driver deformability limits to boost medium-high frequency sound pressure.

Multiple microphone channels segment spatial noise directions to improve 3D audio reproduction accuracy and frequency band coverage.

A non-planar mesh structure reduces acoustic impedance and maintains signal-to-noise ratio in MEMS sensors despite increased device complexity.

Placing the microphone behind the driver isolates the sensor from acoustic interference, enabling precise signal acquisition for noise cancellation.

Integrating valves and a membrane into one layer reduces manufacturing complexity and yield loss while enabling full audio bandwidth sound production.

Detects impulsive interference onsets using temporal derivatives and morphological filtering to estimate energy levels for targeted suppression.

Segmented acoustic reflectors with distinct curvatures improve transmission efficiency and adjustability for multiple users in vehicles.

Interchangeable shell modules on a base body resolve the trade-off between functional expansion and manufacturing complexity.

Adhesive member inside cavity traps airborne impurities before they reach the vibrating membrane, preventing abrasion damage and extending service life.

A vehicle noise suppressor uses dual sound acquisition units to generate phase-opposite control signals for targeted acoustic cancellation.

A headset mute notification system uses voice activity detection to distinguish user speech from background noise.

A speaker cover member channels diaphragm vibration airflow through a recessed path to cool an attached heat sink, reducing amplifier heat retention.

An intercom system uses head-mounted devices to determine user locations and transmit audio selectively.

Dynamic bias voltage cutoff prevents tick noise during earphone removal by grounding the microphone terminal via a switch-controlled capacitor.

A tetrahedral microphone capsule array captures directional audio with stable high-frequency polar consistency.

Integrating bone conduction and air-conducted signals via adaptive filtering to resolve the trade-off between ambient noise immunity and speech bandwidth.

Dual-microphone array processing extracts user voice from noise, eliminating the need for bulky boom microphones while maintaining high intelligibility.

Simulated room dimensions and reflection coefficients generate auralized impulse responses, eliminating re-recording needs for arbitrary device geometries.

A microphone protection screen uses a slit-formed opening to allow sound passage while blocking water and dust.

A head mounted display device uses a sound transmission member with a mounting groove and amplification cavity to reduce sound leakage.

Tab assembly with adjustable spacing mechanism accommodates varying wall thicknesses while maintaining reliable grip without surface damage.

A robotic mount system adjusts microphone and camera orientation via wireless network commands.

Portable microphone array combines signals to generate acoustic pickup beams, resolving the trade-off between recording quality and device complexity.

Equally spaced acoustic holes in a MEMS back plate improve signal-to-noise ratio by resolving uneven interval contradictions.

A sound collection and reproduction system selects area sounds using multiple microphone arrays to recreate spatial audio.

A virtual rotating microphone generates synthetic audio signals from a fixed circular array to determine acoustic angle of arrival.

Porous support structures reduce acoustic reflections and impedance, enabling precise sound-field measurements.

Replacing mechanical buttons with an Indium Tin Oxide film reduces device size while maintaining versatile control functions through capacitive sensing.

Etched slots form springs to relieve intrinsic stress, reducing die size and cost while maintaining sensitivity.

A capacitive MEMS transducer design separates the sensitive and transduction areas to isolate detection from acoustic noise sources.

A mapping server determines acoustic parameters for a headset using a virtual location model, reducing computational intensity and memory requirements.

A microphone multi-channel integrated device uses symmetrical auxiliary cavities to isolate speaker vibrations from the transducer.

Wearable electronic device detects sound sources and provides haptic alerts, resolving hearing impairment challenges.

A direction-of-arrival estimation device calculates frequency weighting factors to improve signal source localization accuracy.

Adaptive binaural beamformer uses multichannel Wiener filter optimized via a priori spatial information.

Porous hydrophobic PTFE in a sealed speaker enclosure relieves slow pressure build-up without compromising liquid tightness or sound quality.

Sampling circuit replaces buffer amplifier in capacitive sensor assembly to generate pulse width modulated signals.

Elastic soft sheath connects separate grounding paths upon deformation to activate sensing member, reducing constant power consumption of touch control chip.

Directional switches select audio signal paths with varying amplification factors, reducing excessive volume when speakers face outward.

Virtual ground regulation reduces ASIC area and power consumption in MEMS sensors.

A listening device uses external and internal microphones to compute a transfer function for adjusting audio signals.

A microphone integrates programmable memory by dividing existing contact areas into smaller segments, enabling parameter adjustment without enlarging the device footprint.

Extending cantilevers from a reference point overcomes small vibration amplitude limits to produce directional sound waves.

An audio encoder combines beamformed signals with hidden non-beamformed representations to process directional audio.

A speaker array system calculates transfer functions to optimize source strength for precise acoustic radiation control.