Invention Grant
- Patent Title: Apparatus, system and/or method for acoustic road noise peak frequency cancellation
-
Application No.: US17971377Application Date: 2022-10-21
-
Publication No.: US11990112B2Publication Date: 2024-05-21
- Inventor: David Trumpy , Santosh Adari
- Applicant: Harman International Industries, Incorporated
- Applicant Address: US CT Stamford
- Assignee: Harman International Industries, Incorporated
- Current Assignee: Harman International Industries, Incorporated
- Current Assignee Address: US CT Stamford
- Agency: Brooks Kushman P.C.
- Main IPC: G10K11/178
- IPC: G10K11/178

Abstract:
In at least one embodiment, an active noise cancellation (ANC) system is provided. The ANC system includes at least one loudspeaker, at least one microphone, and a reference generator. The at least one loudspeaker projects anti-noise sound within a cabin of a vehicle based at least on an estimated reference signal and an anti-noise signal. The at least one microphone to provide a first error signal indicative of noise and the anti-noise sound within the cabin. The at least one filter controller programmed to receive the first error signal and the estimated reference signal; and to control at least one adaptive filter to generate the anti-noise signal based at least on the first error signal and the estimated reference signal. The reference generator is programmed to generate the estimated reference signal based at least on one of vehicle speed, temperature of a tire of the vehicle, or tire pressure.
Public/Granted literature
- US20240233701A9 APPARATUS, SYSTEM AND/OR METHOD FOR ACOUSTIC ROAD NOISE PEAK FREQUENCY CANCELLATION Public/Granted day:2024-07-11
Information query