Hearing Device Active Noise Cancellation TRIZ Cases

Wireless power transfer, onboard storage, and energy harvesting boost bass in mounted speakers while extending wearable battery life.

Wall-mounted speakers use onboard storage, wireless power, and separate subwoofers to hide cables while preserving bass output.

Wireless charging, onboard storage, and idle energy harvesting cut cable clutter, support bass output, and extend wearable battery life.

Server-side adaptive filter updates cut vehicle controller load and avoid packet-loss delays in active noise control.

RMS-based road condition sensing freezes or adjusts ANC filter updates to avoid divergence, impact noise, and repetitive amplification.

Recorded noise playback and timing adjustment let engineers test active noise control in a stationary vehicle with repeatable conditions.

Low-frequency power noise is offset through active cancellation in the cord, helping restore smoother waveforms and better audio tone quality.

Road-surface-aware gain control adjusts vehicle ANC signal levels to balance cabin noise cancellation with consistent audio quality.

By limiting low-frequency noise control signal energy to speaker input capacity, this case avoids distortion while preserving in-vehicle ANC.

A confidence parameter steers neural audio processing in hearing systems to limit artefacts and preserve intelligibility in complex sound scenes.

A charge node routes power and audio so ANC earphones can run while the connected UE charges through a single headset link.

By sampling battery voltage drops, the control circuit adjusts ANR compressor thresholds to balance noise reduction, power use, and battery life.

Cross-ear microphone feedback boosts each ear from opposite-side noise signals to reduce ANC artifacts and keep cancellation balanced.

By sampling power-source voltage drops, the headset adjusts ANR compressor threshold to balance noise reduction and battery life.

Ambient-noise gain control adapts aware mode in ANR wearables, balancing noise isolation with surroundings awareness as conditions change.

Measured transducer-to-microphone transfer functions let headphones tune EQ and transparency modes for more consistent sound across users.

Energy-loss thresholds and main-frequency detection let semi-in-ear headphones retune ANC to fit changes while limiting power use.

Ambient SPL-based gain control balances noise cancellation and surroundings awareness in ANR audio under changing noise conditions.

Adaptive filtering corrects speech frequency response in loudspeakers to improve intelligibility and listening comfort under noisy or bandwidth-limited conditions.

A multi-microphone generative network separates self-voice from background sound, enabling more natural listen-through audio on wearables.

Dynamic compensation and transparent filters correct speech frequency distortions in loudspeakers to improve intelligibility and listening comfort.

Directly estimating the ANC filter from feedback microphone signals avoids separate acoustic path measurements and improves earphone noise reduction accuracy.

An ANC voice-processing stage combines microphone paths to cut vehicle wiring concentration while preserving stable noise control.

Dynamic audio ducking and adaptive noise control help wearable listeners notice important ambient events without major disruption to playback.

Cross-ear microphone feedback boosts the less noisy ear to reduce ANC artefacts and improve audio quality in asymmetric noise.

Adaptive gain shifts the kneepoint with ambient noise to stabilize soft speech levels and improve signal-to-noise ratio in wireless hearing assistance.

Separate filtering for self-voice and external sound makes wearable listen-through more natural while audio zoom adapts filter use.

Measured transfer functions let headphones calculate user-specific EQ and aware mode control for more consistent sound across fit and anatomy differences.

Adaptive compensation and transparent filters rebalance incoming speech frequencies in loudspeakers to improve intelligibility and listening comfort.

Beamforming and separate filters isolate self-voice and external audio, then remix them for more natural wearable listen-through.

Measured transducer-to-microphone transfer functions let headphones recalculate EQ and aware-mode control for consistent sound across users.

An adaptive AEQ filter updates from the headphone transfer path to correct fit-driven frequency response changes and keep playback consistent.

Adaptive transfer-function selection combines ANC with noise compensation to improve headphone audibility under high-frequency noise limits.

A separate noise-canceling path suppresses external noise in DSD audio while preserving sound quality by bypassing quantization-prone modulation.

Using the earpiece transducer as a reverse microphone, this case cuts ANC delay and improves high-frequency noise cancellation.

A dual-channel earphone combines active noise cancellation with an acoustic filter to improve low- and high-frequency noise reduction at lower cost.

SVAD, beamforming, and separate filters isolate self-voice and ambient audio so wearable listen-through sounds natural during use.

Continuous ambient sound analysis during noise cancellation shortens delay when switching to adaptive filtering in acoustic devices.

A bias-controlled ground switch cuts headset hum and popping by stabilizing the ground path during audio power changes.

Adaptive transfer-function selection combines ANC with noise compensation to improve headphone audio quality under changing noise conditions.

Low-frequency ANC is paired with high-frequency compensation to adapt headphone audio to noise conditions and improve sound at the eardrum.

A hybrid digital-analog ANC path cuts processing latency, enabling broader-band noise cancellation with adaptable filter modes.

A movable earphone adjuster varies ambient sound reduction or monitoring, avoiding rigid on/off noise control across changing environments.

Controlled ear tip and housing acoustics plus a customized feedback filter reduce ear-to-ear variation in in-ear noise cancellation.

Ambient sound is sensed and converted into an out-of-phase bone conduction signal to cut noise exposure while preserving open-ear wearable audio.

Keyword spotting suspends noise cancellation so users can hear speech without manual switching, then resumes isolation with control signals.

Coordinated ANC gain drops when ear coupling is lost, preserving noise cancellation stability while maintaining ambient sound suppression.

USB-based auto-calibration replaces manual ANC gain tuning, cutting setup time while improving noise reduction across frequency bands.

Ambient sound monitoring detects alarms, horns, and speech, then mixes alerts into headphone audio without losing noise reduction.

Error-microphone gain ratios detect weak ANC in personal audio and trigger filter correction when ear position changes reduce noise cancellation.

Adaptive knee-point gain control boosts soft speech in quiet settings to stabilize hearing assistance audio and extend microphone distance.

Feedback and feedforward microphone processing filters ambient noise and reduces ear-blocking discomfort without amplifying wind noise.

Real-time transfer-function feedback tunes headphone EQ and transparency mode to offset fit and anatomy differences across users.

Proximity sensors dynamically adjust feedback filter adaptation rates to cancel acoustic echo and prevent signal distortion in hearing aids.