Active noise control system
US11463808B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 2, 2021 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Aug 2, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A first seat noise control device corrects sound collected by a microphone to sound at a listening position of a user seated on a first seat, generates a cancel sound that cancels, at the first seat, the sound of a second seat audio source output from a second seat speaker by using an adaptive filter, and outputs the cancel sound from a first seat speaker. A second seat noise control device corrects the sound collected by the microphone to sound at the listening position of the user seated on the second seat, generates a cancel sound that cancels, at the second seat, the sound of a first seat audio source output from the first seat speaker using an adaptive filter, and outputs the cancel sound from the second seat speaker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.