HIGH-FREQUENCY BROADBAND AIRBORNE NOISE ACTIVE NOISE CANCELLATION

Patent №

US 11,670,276

Granted

2023-06-06

Filed 2021

Owner

HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED

Lab

AI components

1

speech

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

17420111

Noise signals are captured from one or more physical error microphones located at first locations within the vehicle. High-frequency noise signals are captured from a feedforward system sensor. A virtual microphone algorithm is utilized to estimate noise signals at a virtual location based on the noise signals, the estimation utilizing a transfer function that estimates a signal that would have been received by the one or more physical error microphones at the virtual location. The virtual microphone algorithm is utilized to estimate noise signals at the virtual location based on the high-frequency noise signal. A noise-cancelling signal is provided to cancel noise at the virtual location, the noise-cancelling signal accounting for the noise captured by both the feedforward system sensor and the one or more physical error microphones, the ANC system utilizing a working frequency for the ANC of at least 2 kHz.

SpeechG10K 11/178G10K 11/17825H04R 1/04H04R 1/08G10K 2210/12821G10K 2210/3226H04R 1/222H04R 2201/003

AI classification

Speech0.83
Knowledge representation0.03
Machine learning0.03
Evolutionary computation0.01
Vision0.01
AI hardware0.00
Natural language0.00
Planning0.00

Ownership

HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED

assignment · 569110515

Assignors

KIM, GEON-SEOK

On an employer assignment, the assignors are typically the inventors.

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