Microphones TRIZ Cases

A piezoelectric microphone uses a substrate gap to channel sound through hollowed-out holes.

A bone conduction microphone captures vibratory oscillations to isolate user voice signals from ambient noise.

Hydrophobic capillaries integrated into MEMS substrates prevent contamination while eliminating assembly complexity from separate porous membranes.

Front and reverse vents on a mount structure position sound waves to cancel each other, preventing audio leakage from ear canal entrance points.

Directional seating speakers amplify audio for hearing loss users without increasing ambient volume, preserving conversation clarity.

A headset uses accelerometer data to detect wearing state and adjust operation modes.

Nested eyelet design with elastic sealing members eliminates acoustic buzz between components while preserving internal space for audio electronics.

A vibration sensor integrates a chip assembly via a support shell to form a conduction cavity.

Integrated electrical contacts in a rotatable loudspeaker mount transmit power and signals while preventing wire twisting during rotation.

Solder resist dams contain room-temperature-volcanizing material that absorbs external stress, preventing mechanical force from degrading sensor performance.

A noise reduction system uses virtual sensing and signal averaging to estimate error signals at specific positions.

A single magnet coaxial loudspeaker uses a soft magnetic common region to control flux division, reducing cross modulation interference.

System adapts noise cancellation parameters via sensors to resolve performance disparities caused by asymmetric microphone placement.

Anti-diffraction waveguides smooth sound wavefronts passing magnets, eliminating diffraction patterns and phase distortion for improved frequency response.

An internal heater raises gas pressure to deflect a microphone diaphragm, enabling self-calibration without external audio sources.

Reinforcement regions on MEMS flexible membranes dissipate stress at contact points.

Flexible tabs snap into a shellpot groove, eliminating adhesive use and reducing tooling complexity for multiple designs.

Acoustic panel assemblies generate sound pressure vibrations using specific flexural moduli and dimensions.

Smart hearing device differentiates natural language from non-natural language using graph patterns, resolving poor noise cancellation in conventional aids.

Sliding housing portions adjust the audio chamber volume to manage thermal rejection efficiency and maintain desired housing temperatures.

A middle ear implantable microphone uses a notch filter to flatten frequency response.

Voice activity detection triggers automatic mode switching in headsets, resolving the trade-off between ease of operation and device complexity.

A wearable earphone detects vehicle motion to switch audio output from media playback to external sound capture.

An interposer raises electrical contacts to resolve the conflict between device compactness and noise performance in acoustic assemblies.

A spherical microphone array derives estimated values for short and long distance acoustic signals to calculate a separation filter.

Empirical impulse response characterization replaces theoretical filters to maintain high-frequency directivity and audio fidelity.

Acoustic seal area isolates membrane from bond pads, preventing sealant intrusion into critical areas during flip-chip assembly.

Extracting the pressure relief groove from the housing onto a separate gland simplifies processing and increases manufacturing yield.

A Bluetooth headset optical sensor receives calibration commands through the charging box's wired transmission medium.

A dual-output charge pump uses shared input cells to generate distinct bias voltages for micro-electro-mechanical systems.

Audio decoder reconstructs wind noise reduced signals using hidden low frequency representations modulated to high frequencies.

Encoding multiple audio streams into a mixed signal enables independent gain adjustment at the playback device.

A wireless earphone housing cavity accommodates a speaker driver and rechargeable battery within a compact stem structure.

Low-mass copper-clad beryllium windings resolve the contradiction between high power handling and accurate overtone reproduction in loudspeaker design.

A microphone array system uses a sound wire bus to connect multiple microphones via segmented buffer memory.

A noise reduction unit suppresses drive interference in imaging audio signals using dual microphone inputs.

A hybrid integrated component embeds a pressure-sensitive diaphragm structure within the back-end stack of an ASIC element to enable compact multilayered micromechanical functions.

A wind noise suppression system uses a microphone array and detector to assess audio input levels.

Memory wire in the neckband holds adjustable shapes, resolving the trade-off between sports stability and long-term wearing comfort.

Deep reactive ion etching creates a suspended diaphragm block on a silicon substrate, resolving assembly complexity from discrete parts.

Acoustic probe signals and dynamic weighting resolve detection accuracy versus power consumption trade-offs in noisy environments.

A locking component secures a microphone boom to a support structure at an adjusted angle, eliminating the need for constant manual positioning.

Segmented electrode subsets apply finite voltage sets to achieve high time resolution while minimizing drive scheme complexity.

Equal resonance frequencies in differing conduit lengths resolve layout flexibility constraints while dampening ultrasonic interference.

Dual microphone audio processing apparatus applies spectral subtraction to isolate and remove lens drive noise from ambient sound signals.

Anchor segmentation decouples diaphragm area definition from substrate-free regions, eliminating parasitic capacitance and acoustic resistance.

Earphone assembly uses acceleration sensors to detect wearing position and route sound channels automatically.

A noise injection circuit adds measured interference to the microphone power supply to cancel crosstalk in three-wire headsets.

Pointed stoppers prevent membrane adhesion while maintaining structural integrity against breakage.