Microphones TRIZ Cases

A blind source separation method updates time-frequency estimated signals using mask values to isolate audio sources from noisy microphone inputs.

A microphone authentication apparatus compares spectral parameters to predetermined characteristic resonance frequencies of the acoustic port.

A silicon condenser microphone circuit module uses an isolator and charge pump to manage signal paths.

A dual signal processing unit architecture generates positive and negative electrode signals for speakers to enable selective power management.

A local space-domain distance selector identifies time-frequency bins containing direct-path acoustic signals within near-eye display systems.

Wireless coordination among multiple repellers creates an overlapping deterrent field that prevents pests from recognizing individual device patterns.

A porous damping film isolates the microphone from mechanical resonance, ensuring accurate sound pickup without blocking acoustic signals.

Varied conductive layer thickness mitigates thermal expansion mismatches, reducing sensitivity drift in capacitive microphones.

Segmenting the silicon dioxide layer with a trench relieves residual stress to improve sensitivity and low-frequency roll-off control.

Segmented vibration diaphragms relieve high sound pressure through elastic deformation, preventing rupture without increasing structural complexity.

Merging audio and illumination functions reduces device complexity while simplifying installation.

Multiple vehicle microphones record sound waves to determine the direction and position of a sound source relative to the car.

Acoustic signature identification segments playback zones to reduce user cognitive burden and minimize redundant processor inputs.

Acoustic ray tracing generates reflection-aware and diffraction-aware paths to estimate the three-dimensional position of a sound source.

A system executes commands after detecting specific audio triggers and confirming silence within a time threshold.

An auto-calibrating in-ear headphone system modifies audio signals using integrated circuit feedback from the user's ear canal.

A quarter-wavelength tube absorbs sound energy within the ear cushion to eliminate acoustic resonance.

Corner-mounted speaker enclosures generate constructive interference gains to deliver deeper low-frequency sound while eliminating obstruction by deck objects.

A wind noise throb reduction system uses active cancellation and dynamic airflow control to manage acoustic pressure in vehicle cabins.

A dual single-crystal backplate MEMS microphone uses a flexible diaphragm sandwiched between two rigid silicon plates to enhance rigidity and sound detection.

A rotating speaker driver with a voice coil and diaphragm produces omnidirectional sound via electromagnetic force.

Combining logic removes mechanical shock noise from the primary signal using data from a secondary correction microphone.

A microphone array uses an accelerometer to track orientation changes for adaptive beamforming.

A detachable porous windscreen creates an acoustic seal around the earplug microphone inlet to minimize interference.

A headset signal processor detects wearing position to select a noise cancellation model for voice transmission.

A modular speaker box assembly distributes sound across multiple units mounted on a watercraft exterior.

A shielded microphone suspension system uses a plenum-rated cable adapter to secure the audio device.

A multi-channel sound collection apparatus converts acoustic signals to digital data via dedicated analog-to-digital converters.

A sound capture system uses omnidirectional microphones arranged in a hexahedron structure to produce directional output signals.

XeF2 isotropic etching creates the diaphragm while integrated packaging eliminates separate assembly steps that increase complexity.

Emulating a microphone with a speaker detects wind through coherence analysis, reducing device complexity and power consumption.

Segmented ventilation holes in concentric MEMS diaphragms reduce self-noise while maintaining structural rigidity against pressure loads.

Integrating two microphones into a single surface mountable package with openings on opposite sides.

An open cell foam wind noise filter drains water via a through-going channel, preventing occlusion that degrades sound signal quality in wet environments.

A hearing device identifies target sound signatures within environmental audio to amplify or attenuate specific frequencies.

A convertible headband audio device features a detachable earpiece stored in a receptacle for seamless mode switching.

Convolve cross-correlation signals from symmetric microphone pairs to determine acoustic source direction.

A headset microphone system detects boom arm displacement using embedded sensors and processor logic to verify input alignment.

A smartphone system streams live audio to multiple users via Wi-Fi while applying hearing loss compensation algorithms.

A portable wireless speaker isolates the internal module from the outer housing using a dedicated elastomer interface to prevent mechanical oscillation.

Elevated dummy pads raise insulation layers above pad electrodes, shielding them from chuck pressing forces that cause damage and reduce yield.

An acoustic tunnel amplifies sound from internal speakers while solar panels and lithium-ion batteries enable self-sustained operation in diverse environments.

An acoustic deflector creates a stack effect air flow to cool electronics.

Omnidirectional camera and microphone array integrate audio data into visual overlays for surveillance monitoring.

Logarithmic transducer rings in a rotationally symmetric speaker array eliminate manual adjustment needs by ensuring seamless adaptation to placement.

A cantilevered substrate platform supports a MEMS device while a cap layer isolates the structure from overmolded packaging materials.

Magnetic coupling between removable battery units and processing units enables continuous activity tracking without removing the wearable device from the user.

An acoustic device uses ambient signal characterization and control circuits to manage audio inputs from multiple transducers.

Torsion springs convert perpendicular membrane warping into parallel electrode displacement, reducing space required for electrode configuration.