Signal Processing TRIZ Cases

A signal processing system selects optimization algorithms based on target sound source direction to improve audio quality.

Virtual beamforming directs nulls at noise sources, canceling echoes and suppressing interference to improve voice intelligibility.

A loudness adjustment apparatus converts sound signals into frequency domain representations to calculate target levels based on device response curves.

A controller monitors image streams to detect speaking movements and autonomously generates prompts to unmute microphones.

Segmentation of the headset into independent modules reduces downtime by allowing on-site replacement of damaged components without full disassembly.

A THD modeling system applies chirp and ramping signals to identify distortion bands and limits input amplitude via dynamic range compensation.

A multi-microphone speech dialog system uses spatial zone activity information to identify utterance origins across distinct listening areas.

A directional MEMS microphone synthesizes antiphase sound signals to isolate front audio.

A deformable controller uses a flexible membrane to detect user input through pressing or twisting actions.

A binaural hearing system adds spatial cues to electronic monaural signals using directional transfer functions.

An external remote control module with an IMU and pressure switch resolves the contradiction between compact ear-wearable size and complex control operations.

Directional speakers in a vehicle phone stand separate speech from ambient noise, resolving clarity issues caused by high background interference.

A cross-correlation phase transformation algorithm adjusts a parameter to balance GCC and GCC-PHAT methods.

A multi-speaker audio system adjusts playback based on user position to reduce interference with voice commands.

A headphone system records external audio and identifies feature sounds to prompt user input for critical information processing.

A Helmholtz resonator sound direction sensor detects acoustic wave incident angles using power ratios of multiple resonators.

Segmented speaker units resolve the trade-off between structural stability and communication versatility by enabling automatic mode switching upon separation.

A driving assistance apparatus creates a stationary sound field using multiple speakers to alert drivers.

An adaptive control system using microphone arrays and MELMS algorithms optimizes sound localization while reducing room reflection distortion.

Audio control module reduces primary volume to output master signals, ensuring external notifications are heard without manual intervention.

An acoustic crosstalk canceller inverts stereo playback transfer functions using frequency-dependent regularization parameters.

A beamforming system aligns acoustic channels using a delay distribution model.

A head mounted display uses a movable indicator to coordinate audio and video output levels through a unified interface.

Audio processing device separates stereo channels and amplifies summed low-frequency components to reduce intrusive floor noise.

Geometric calculation of phase offset from recorded audio content improves measurement precision while increasing system complexity.

A beacon system synchronizes wireless headset devices using dedicated virtual channels.

A piezoelectric speaker uses a substrate with distinct bending stiffness regions to drive independent frequency bands.

A multimedia player adjusts sound output levels and timing per frequency band based on user responses to phonemes.

Audio parameter adjustment method analyzes target effects and environmental optimization parameters to perform adaptive system tuning.

A vehicle speaker system separates audio frequency bands using low-pass and high-pass filters, preventing mid-frequency sound image shifting below ear height.

Complex Gaussian modeling replaces restrictive harmonic assumptions, enabling real-time separation of music signals with harmonic structures.

Segmenting binaural hearing aid components increases the physical distance between microphones and receivers, suppressing whistling during high amplification.

Controller adjusts modulation parameters using user-specific test signals to compensate for manufacturing variations and ear sensitivity differences.

An adjustable ear cup shaper creates space for eyeglass temple pieces within a headset design.

Computing device adjusts audio processing based on hinge angle to modify microphone signals.

Dynamic selection between large and small microphone arrays improves localization accuracy by reducing measurement errors across varying distances.

An in-the-ear microphone captures spatial cues that conventional behind-the-ear designs lose, reducing cognitive loading and listening fatigue.

Multi-frequency swept sine wave signals detect phase and frequency modulation effects that static single-frequency tests miss.

Acoustic sensors determine velocity and trajectory to illuminate paths, bypassing optical sensor failures in poor weather.

Sub-band mixing transforms microphone signals into weighted frequency segments to integrate audio data from multiple sources.

A telematics unit limits audio output from wireless devices to a set maximum volume level.

A filter bank splits audio data into frequency domains to apply distinct signal processing operations.

A wall-mounted control unit processes audio signals from portable devices to drive coupled speakers via wireless communication modules.

A beamforming signal processing method groups audio signals into frequency bands to reduce data size while maintaining spatial audio control capabilities.

A personal safety system modifies an audio panorama to focus user attention toward danger.

A sound field stabilizer calculates balance gains for multiple microphone signals to maintain spatial image integrity during audio processing.

A neural network system adapts to new users and environments using unsupervised domain adaptation for WiFi indoor localization.

Timestamped Bluetooth packets resolve latency and multi-channel support contradictions, enabling precise surround sound audio capture.