Microphones TRIZ Cases

Serpentine anchors and slit arrays segment the outlet area to improve frequency response while preventing diaphragm sagging.

A single-crystal piezoelectric film bonded to a CMOS wafer achieves uniform stress distribution in microphone devices.

Pre-computed weights in a lookup table enable real-time null steering, resolving the trade-off between reliable noise cancellation and computational complexity.

A vibrotactile audio display system separates sound into discrete frequency bands for precise skin stimulation.

A porous monolithic block containing gas adsorbing material and high solid content binder increases effective volume within a loudspeaker enclosure.

A tilted internal loudspeaker directs audio upwards, resolving back volume constraints in compact portable radio accessories.

Slit-divided diaphragm regions provide independent displacement to cancel thermal noise, improving the signal-to-noise ratio without increasing sensor size.

A bone conduction microphone uses a monolayer circuit board with an integrated acoustic channel to route airflow from a vibration assembly to a MEMS chip.

A speaker enclosure uses a neural network to analyze reflected audio signals for wall detection.

A computer system uses one speaker as a microphone to detect ambient noise and adjusts audio output signals for the other speaker.

A bubble processor calculates processing gains at thousands of virtual microphone locations to determine precise sound source positions in a shared room.

A two-wire autobias microphone circuit uses a DC feedback loop to maintain stable bias points across varying electronic device loads.

A variable eartip adjusts length and angle via a corrugated tube to resolve discomfort from fixed sizes.

Partitioned cavity housing isolates the MEMS chip from thermomechanical stress while expanding rear volume for improved signal quality.

DSP and orientable flaps adjust sound directivity, overcoming fixed mechanical limitations.

Dynamic scanning duty cycle adjustment reduces connection time and power consumption while maintaining reliable Bluetooth linking.

A wireless headset uses a slap switch for glove-friendly call management and vibration sensors for voice command input.

A small speaker system uses a flip dog mechanism to secure the unit in ceiling panels without rear access.

Wireless audio transmission conveys sports instructions covertly, preventing signal interception by opposing teams.

A MEMS component uses a movable stop element to create fluid flow resistance within the cavity.

A voice-controlled device determines acoustic signal direction by mapping candidate vectors to reference azimuths and calculating average power values.

Miniaturized acoustic filters replicate human upper body scattering to improve spatial accuracy while maintaining portability for mobile devices.

Vector noise cancellation combines weighted multi-channel inputs to optimize signal-to-noise ratios instantly.

A lens element corrects beam divergence in an optical transducer, reducing optical losses and enhancing signal-to-noise ratio for voice recognition.

Dynamic channel mapping adjusts audio output configuration according to real-time user position data to optimize listening experience.

A MEMS sound producing device positions resonance above the audio band to control membrane displacement.

Geometric microphone arrangements enable multi-directional reception while reducing hardware complexity and physical space requirements.

Segmenting filter weight computation into offline pre-computation and online application reduces computational cost while maintaining audio quality.

A loudspeaker mounting assembly uses a rotatable inner frame and pivotable sleeve to adjust tilt angles.

A MEMS microphone co-packages a gas sensor within an internal cavity fluidly coupled to ambient air through a dedicated port.

A distributed audio system selects the optimal microphone input by comparing energy levels and time-of-flight data across connected devices.

A window sound sensing system uses an acoustic shield to protect a microphone module on a lightweight sticker.

Sharing auditory profiles enables personalized audio beamforming that adapts to individual hearing differences and environmental acoustics.

Autocorrelation coefficient gradients detect wind noise in single microphone signals, eliminating multi-microphone array complexity.

An inflatable pouch couples to audio devices to create a dynamic seal against headgear, reducing friction while maintaining noise isolation.

Wing vent valves modify diaphragm deflection patterns to boost sensitivity while maintaining air blow test durability.

Camera-guided beamforming directs audio from a specific source to a hearing aid, resolving fixed directional reception limits.

Dynamic switching disconnects unused conductors to reduce electromagnetic interference while maintaining reversible cable coupling flexibility.

Routing audio wires inside a hollow lanyard eliminates choking hazards from loose cords while maintaining adjustable hood cinching functionality.

A terminal microphone collects environmental noise to automatically control earphone noise reduction functions.

A single microphone detects shock waves and muzzle blasts to estimate shooting range using novel equations derived from field data.

Segmented microphones with differentiated sensitivity levels process audio commands while removing saturation-causing noise.

A portable electronic device features a speaker assembly movably disposed within a pivoting hollow sleeve.

Earphone apparatus detects disengagement to activate adjustment mode, disabling touch sensors and transferring audio signals to paired devices.

Central recesses in polar plates prevent diaphragm adhesion while maintaining mechanical sensitivity and yield.

Inverted backplate biasing doubles the acoustic overload point of MEMS microphones while providing electrostatic discharge protection.

Merging grill and substructure elements during injection molding eliminates visible seams while maintaining structural integrity.

Curved lead wires reduce structural strength on a dual-material diaphragm, lowering resonance frequency and boosting low-frequency sound pressure.