Signal Processing TRIZ Cases

Acquiring unit identifies input information from target regions to allocate data to associated applications, resolving simultaneous multi-user input conflicts.

A sound source separation device uses complex conjugate beamforming coefficients to attenuate specific directional signals from a microphone array.

Automated audio tuning system integrates measurement and signal processing engines to generate playback signals, resolving manual tuning time requirements.

Audio transducers modify external signals to resolve microphone-speaker placement mismatches in transparency mode.

Audio adjustment system detects passenger faces to estimate age, then modifies signal pitch to compensate for hearing loss.

A contextual adaptive volume control system adjusts sound levels using ambient noise data and historical user behavior patterns.

A hearing aid diplexer splits input signals into low and high frequency components for processing.

A wearable audio device generates a composite voice signal by merging low band body-conducted sounds with high band atmospheric signals captured via separate sensors.

Vertical microphone arrays measure sound tilt angles to mute horizontal table noise, preventing keyboard clicks and paper rustling from disrupting conferences.

Adjustable microphone arrays use beamforming to isolate speakers and reduce ambient noise in group meetings.

Acoustic wave decomposition isolates direct speech from reflections using Multi-Channel Linear Prediction Coding coefficients.

A cannabis storage box integrates an audio unit into its lid to stream music while providing upward and downward illumination.

A level-dependent compression system adjusts subband signal bandwidths to preserve spectral contrast in hearing assistance devices.

A loudspeaker processing method generates harmonic signals from low-frequency audio bands to preserve bass perception.

A vehicle system generates 3D audio objects using distributed output devices to deliver spatial sound cues.

Electronic device calculates acoustic radiation patterns based on ambient sound measurements.

A grid-shift procedure constructs shifted spatial grids to estimate acoustic source locations, resolving energy leakage errors caused by off-grid sources.

A hearing aid compressor varies its input output rule based on signal level to adjust gain values dynamically.

Batch rendering of audio sampling points reduces repeated function calls, enhancing real-time performance.

A vehicle audio system adjusts sound volume based on three-dimensional passenger detection data.

Auditory-space-optimized transfer functions combine head-related and room-related data to resolve in-head localization issues during headphone playback.

Wireless positioning data steers a microphone array toward user regions, reducing energy consumption by minimizing audio processing in empty spaces.

Segmenting audio signals via a filter bank compares energy levels to detect feedback, reducing computational complexity while maintaining high reliability.

Segmenting frequencies with piezoelectric and electromechanical actuators minimizes attenuation for conductive hearing loss.

A vehicle sound control device updates adaptive filters using collected signals to generate stable sound effects.

A processor switches audio output between mono and stereo modes based on detected volume levels to control speaker signal transmission.

A hearing device segments voice control processing to conserve battery power.

An adaptive phase discovery system estimates frequency domain phase differences using multiple microphones to improve signal mixing accuracy.

A noise suppression device computes phase and amplitude coefficients to filter input sound signals.

A controller device dynamically adjusts channel configurations and audio delays across multiple network-connected speakers.

GPS-based audio control reduces noise in sensitive areas while preserving music enjoyment elsewhere.

A universal audio receptacle detects connector type to configure balanced or unbalanced output signals automatically.