Active noise control system and method
US9240176B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2013 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Oct 7, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3226
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Methods and systems are provided for active noise control in a vehicle. The system includes a position sensor for sensing an occupant position. A microphone receives audible noise and generates an error signal corresponding to the audible noise. A first controller is configured to receive the error signal from the microphone and generate a modified error signal by modifying the error signal based on the occupant position with respect to the microphone. A second controller is in communication with the first controller and configured to generate an anti-noise signal based at least in part on the modified error signal. The system also includes a loudspeaker in communication with the second controller for receiving the anti-noise signal from the second controller and producing sound corresponding to the anti-noise signal to negate at least some of the audible noise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.