Signal Processing TRIZ Cases

A video bar detects Information Handling System location using Time-of-Flight calculations to configure audio devices.

A binaural hearing aid separates target and masker signals into different frequency bands to enhance speech intelligibility.

Segmenting the driver array into specific frequency bands resolves poor low-frequency performance in single-speaker earcups.

Periodic sound level measurement reduces energy consumption while maintaining hearing protection reliability against continuous monitoring.

An RFID-equipped lubricator device transmits operational signals via an RF transmitter to enable remote monitoring of dispensing mechanisms.

Transducer arrays create interference patterns that suppress echo paths and unwanted noise while delivering targeted signals to intended listeners.

Wall-mounted audio zone controllers display unique QR codes that bridge fixed installation stability with remote user accessibility via smartphone web browsers.

A noise estimator tracks minimum and maximum signal statistics in frequency bands to adapt gain adjustments.

Separate mixer modules buffer latency-tolerant and sensitive audio signals with different durations, reducing power consumption and minimizing audio artifacts.

Directional acoustic arrays radiate midrange and high frequency energy laterally to improve perceived sound source location.

Complex-valued adaptive line enhancement exploits phase information to suppress deterministic periodic noise without attenuating speech harmonics.

A hearing aid generates enriched sound using band-pass filters and level modulators to create musical chord progressions.

Motion data from an accelerometer adjusts audio output to compensate for ear canal noise changes during activity.

An inductance compensation filter stabilizes dual-coil loudspeaker drivers by canceling voice coil inductive rise.

Signal processor estimates direction-of-arrival using a relative transfer function dictionary.

A block detector processes sound signals through high-pass and low-pass filters to identify microphone obstruction states.

A vibration speaker integrates sound output and high-power vibration using a shared magnetic circuit.

A hand-held apparatus places a vibrator between speakers to localize vibration, resolving the trade-off between immersion and device complexity.

A headphone set processes audio signals through dedicated adders to mix channels directly within the device.

A hearing assistive device adjusts user voice amplitude to match far-end sources using a dynamic range controller.

A signal processing unit calculates time differences of arrival using Fast Fourier Transform phase analysis to determine sound source position.

A hearing transducer offloads digital signal processing to a smartphone, leveraging external computing power for adaptive audio enhancement.

Segmenting voice enhancement across multiple picking devices reduces equipment costs while maintaining high audio quality in diverse meeting environments.

A sound processing method generates noise component estimates and associated confidence measures for hearing prostheses.

A method manages synchronized audio transmission across multiple digital personal assistant devices using a baseline audio map.

Upward-firing drivers reflect sound off ceilings to create virtual height cues, avoiding expensive ceiling-mounted speaker installations.

A processor-driven apparatus generates synthetic audio signals by applying frequency and amplitude shifts to input frames based on real-time vehicle parameters.

A stationary device coordinates audio output devices and screens to resolve connectivity complexity in dense environments.

A hearing system estimates mouth-to-microphone distance to update beamformer weights for voice enhancement.

Magnetic field sensing determines headphone wear status through intensity thresholds, automating playback control and power management without manual input.

A microphone array processes signals through delay-and-sum and blocking matrix techniques to generate enhanced audio output.

A volume display apparatus sequences intermediate values to smoothly transition audio levels on device screens.

Dual-sensor earbuds compare microphone and bone conduction VPU signals to eliminate false positives from ambient noise interference.

An audio processor identifies cabinet resonant frequencies and redistributes signal power to eliminate buzzing vibrations.

A radiographic imaging apparatus uses a porous sound transmission member to transmit notification audio while blocking liquid ingress through the casing.

A sound generator control apparatus shifts pitch and adjusts volume across segmented frequency bands to produce recognizable acoustic signals.

Anti-phase signals from front-facing speakers cancel direct-path leakage from non-front drivers, broadening the listening sweetspot.

Head azimuth detection during fitting derives individualized gain compensation curves, resolving the trade-off between measurement precision and testing time.

Frequency-selective power comparison of spatially separated microphone signals detects feedback components in hearing devices.

A hearing aid method generates angle-weighted directional signals using superposition parameters from omnidirectional transducers to enhance spatial perception.

A hearing aid system personalizes algorithm parameters using predictive tests and machine learning to estimate user hearing ability.

Audio system generates cabin sound based on acceleration state and torque output to restore aural feedback lost in hybrid powertrains.

An echo canceler filters microphone inputs using sound management reference signals to isolate user voice from system-generated acoustic noise.

A wireless audio enhancement system delivers artwork information via motion detection, reducing visual distraction and installation costs.

Dual adaptation coefficients with distinct response times suppress steady background noise while preserving transient speech signals.

Frequency segregation allows independent volume control per zone without compromising stereo audio quality or increasing system complexity.

Segmented viewing windows and motion sensors provide rearward vision and performance feedback, eliminating injury risks from head movement.

Feedback transition threshold algorithm reduces gain in frequency bands experiencing rapid acoustic path changes.