Method and device for narrow-band noise suppression in a vehicle passenger compartment
US8682000B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Jul 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/128
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method and a device for suppressing noise in the passenger compartment of a vehicle, which include at least one transducer, a programmable computer, at least one acoustic sensor, the computer being configured such as to apply an electro-acoustic model of the passenger compartment to a correcting system model including a central controller with fixed coefficients joined to a block of variable coefficients, including a Youla parameter in the form of a Youla block Q. The first phase includes determining and calculating the electro-acoustic model and the control law for at least one predetermined noise frequency. In a second phase, in real time, the computer applies the control law to the electro-acoustic model in accordance with the current frequency of the noise to be suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.