Microphones TRIZ Cases

A wireless earphone system detects wearing state through motion sensors to initiate automatic reconnection requests without user intervention.

Own voice detector identifies user speech segments to guide noise reduction processing, attenuating unwanted voices while preserving target signals.

A bone conduction microphone uses a vibration assembly to divide the internal space into two conduction cavities for efficient signal transfer.

Voice-controlled light switches use beamforming and noise cancellation to improve speech recognition accuracy in noisy environments.

A clip-on microphone assembly uses an acceleration sensor and beamformer to steer acoustic beams toward the user's mouth.

A MEMS acoustic sensor frame wall retains a sacrificial layer to reinforce structural integrity against mechanical shock.

A media system generates multi-channel audio streams by selecting capture devices based on a specific subject of interest.

A full-range speaker uses a phase plate with curved support ribs to adjust acoustic phase and prevent standing waves.

Integrating an ultrasonic generator into display panel pixels resolves the conflict between ultra-thin device profiles and directional sound production.

Packaging circuitry detects headset removal to trigger speaker audio messages, resolving setup complexity through interactive voice guidance.

Three orthogonal membranes vibrate along distinct axes to detect multi-directional signals via coupled MEMS microphones.

An integrated loudspeaker assembly uses the device enclosure as a back volume to enhance audio output.

Segmented acoustic paths deliver high quality audio without blocking the ear canal, resolving safety issues from blocked ambient awareness.

A portable sound equipment neckband wire unit uses a shape-memory alloy frame to enable easy rolling and compact storage.

A surface acoustic transducer uses a segmented housing to protect internal components while enabling mechanical excursion for sound production.

Molding tool fills inter-panel voids with curing fluid to create bass box volume without reducing cabin space.

A hearing aid system adjusts microphone sensitivity and applies compensation gains to extend the effective dynamic range.

A microphone capsule assembly arranges four capsules in a tetrahedral geometry to capture directional audio signals with high fidelity.

Symmetrically disposed horns in a microphone and speaker all-in-one machine cancel interfering sound waves to prevent howling.

A multi-microphone system detects wind noise by determining phase angle differences between signals.

A processor outputs test tones from earphone speakers into a cradle to capture reflected sounds for component verification.

A voice input device uses a fixed microphone array to estimate utterance direction and drive a movable part.

Virtual coupled resonators replace physical spacing to measure incident angle without strong resonance disturbance.

Independent sound chambers separated by a dividing wall prevent high and medium-low pitch interference, while shared magnetic components reduce device size.

Dual sound cards in a USB game microphone allow independent volume adjustment for game background sound and teammate voices via a hybrid potentiometer.

Amorphous silicon carbide passivates structured metal layers, preventing seam lines and corrosion during production steps.

A detachable microphone module connects to a computing device housing to enable selective electrical linkage.

Sound release holes on the yoke channel low-frequency tones upward, eliminating dampening in narrow passages while reducing overall volume.

Motor-driven rotation of the loudspeaker body resolves fixed placement constraints while maintaining acoustic directivity.

An acoustic testing apparatus enables simultaneous evaluation of multiple miniature microphones using a single reference microphone.

A noise suppressor adapts its processing channels based on microphone signal strength ratios to maintain audio clarity.

Undoped polysilicon separates the doped diaphragm from the metal electrode, preventing short-circuiting in standard CMOS fabrication.

A skin audible watch uses circumferential sound modules and vibration motors to detect audio direction.

Wafer-bonded zero-stress films resolve sensitivity variation and low-frequency roll-off control issues in piezoelectric MEMS microphones.

A remote speaker microphone unit connects to headsets or in-ear speakers and disables its built-in audio components when a device is attached.

Real-time voiceprint analysis detects semiconductor cracking during testing, preventing mechanical damage and lowering quality control costs.

A personal sound amplification earring uses removable jewelry covers to disguise the device.

A control method detects which earphone is first pulled to automatically assign the master role for wireless pairing.

Merging acceleration motion data with skin proximity readings determines wearing state, enabling power mode switching that reduces energy waste.

Through-silicon vias connect MEMS microphones to ASICs, eliminating wire bonding parasitic capacitance and reducing production costs.

A hearing aid signal processing section determines the preferred acoustic source by analyzing speaker distance from the microphone system.

A hearing protection system uses segmented adaptive filters to estimate user voice signals with reduced computational complexity.

Porous parylene acoustic blocks enhance low-frequency representation by eliminating aluminum blocking microporous passages.

Partition walls form nested chambers with conductive gaps that allow air circulation, reducing drag and enhancing vibration energy for better sensitivity.

A MEMS diaphragm incorporates a support structure across the aperture to distribute stress and prevent fracture from mechanical shocks.

A cloud speaker lamp synchronizes LED light intensity with audio playback using a translucent enclosure.

A MEMS microphone terminal assembly integrates pads within the substrate to enable direct soldering on a signal board.

Additive manufacturing builds monolithic MEMS sensor lids using stacked layers, increasing back volume while maintaining mechanical stability.

An outward-facing noise acquirer captures external noise while an echo canceler removes leaked voice interference, enabling universal device compatibility.

Parallel diaphragms with a shared back plate generate differential signals to improve signal-to-noise ratio without increasing device size.