Signal Processing TRIZ Cases

Hearing devices use adaptive beamforming to generate pre-processed signals for accurate directional audio capture.

A hearing assistance device employs a Bayesian classifier to identify distinct sound sources and automatically adjust processing parameters for optimal audio output.

An audio signal processing apparatus selects channel groups by volume level to form sound collection beams.

An information processing apparatus separates content signals into primary and secondary components to drive distinct output devices.

A disturbance minimization system dynamically adjusts sound levels to suppress audible interference from secondary devices.

A contextual awareness subsystem extracts environmental data from audio streams to drive adaptive configuration changes.

A patient monitor diagnoses speaker faults by comparing microphone input signals with expected alarm outputs.

Band-limited audio test signals determine frequency-specific gain values to compensate for passive dampening in the ear canal.

A detection unit initializes internal state and notifies a control unit of an interrupt upon detecting a continuous long press operation.

A reverberation removal filter estimates coefficients using a reference signal and delayed acoustic input to stabilize processing.

Clustering direction vectors into regular direction cells reduces delay-direction codebook size for sound source localization processing.

Head azimuth detection coordinates directional cues across frequency bands, reducing directional smearing and improving speech understanding in noise.

Variable density ear cup sections accommodate eyeglasses without air leaks, preserving bass response and sound quality.

Processor merges spatial and external audio channels using expanded metadata to maintain fidelity while reducing transmission load.

A dual microphone mating assurance system detects connector engagement sounds using spatial positioning to distinguish signals from ambient noise.

Spatial filtering extracts directional components from mixed audio, enabling accurate source categorization without complex rendering hardware.

A sound volume control device adjusts maximum output levels without requiring users to hear test audibility data.

A smart muting system analyzes video data to verify participant intent before rendering audio.

Audio signal transmission method uses linear prediction to create efficient transmission values for hearing aid systems.

Combining direct-path and reverberant-path steering vectors improves signal-to-interference ratio without strong source location assumptions.

A lubricant dispenser integrates the driver battery within the disposable cartridge to power a reusable electronic controller only upon attachment.

A signal processing method converts estimated interaural time differences into interaural level differences for bilateral cochlear implants.

A multi-speaker array outputs spatially transmitted sound fields tailored to individual listener positions.

Voice activity detection calculates a mute threshold to automatically mute background noise while unmuting instantly when speech resumes.

A distributed mode loudspeaker actuator uses patterned electrodes to generate sound waves through selective piezoelectric vibration.

A versatile headset integrates swivelable headphones, detachable batteries, and noise cancellation for reliable outdoor communication.

Signal processing apparatus selectively decodes and renders audio objects based on mute state information to minimize computational load.

A hearing device adjusts signal processing parameters using quantitative measures of articulatory and prosodic speech features.

Output method segments voice data into reply and supplemental streams to resolve the contradiction between operational simplicity and information completeness.

A spectral management system separates and reroutes audio frequency bands across distributed channels to match loudspeaker capabilities.

A crowdsourced database generates precise sound parameters from remote audio recordings for accurate identification.

Extended control dials on a helmet-mounted radio resolve glove accessibility issues by relocating volume and channel adjustments to an ergonomic position.

Processor estimates sound source distances from microphone array direction parameters to resolve mismatched auditory and visual perceptions in virtual reality.

A sound output device predicts external acoustic signals to variably adjust its own audio output.

A headset control system with a slap switch and breakaway connectors manages calls during sports activities while reducing wind noise.

Resonance-enhanced nonlinear mixing produces collimated low-frequency beams for deep penetration in attenuating media.

Processor detects changed sound settings and associates them with context characteristics for future adjustment.

Directional decomposition isolates high-energy sound sources to maintain reproduction accuracy when listeners navigate away from recording locations.

Virtual resonator mapping functions modify transducer signals to determine acoustic wave incidence angles without requiring large physical microphone spacing.

Analyzing video frame occupancy determines user position, allowing the system to adjust loudness and reverberation for accurate audio reproduction.

A spatial audio processing system applies an adaptive whitening filter to frequency-domain signals for precise source separation.

A voltage regulator adjusts amplifier supply voltage based on audio signal levels to maintain output headroom.

Segmenting the control interface onto a remote device resolves the contradiction between compact hearing aid size and ease of operation.

Varied microphone spacing generates frequency-specific directivity, balancing signal quality against self-noise amplification across bands.

Histogram-based gain curves adapt per-band suppression levels, eliminating musical artifacts while preserving voice intelligibility.

Phase aligned correlation transforms spatial audio data into delay representations to separate early room reflections with similar directions.

Coordinated dual hearing aid processing preserves source volume ratios to restore spatial perception and sound orientation.