Active noise control device
US9076424B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Mar 24, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/3215
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The active noise control device for canceling out a target sound to be controlled in a target area for sound control includes: control sound output units each of which produces a control sound based on a wavefront control signal; and a wavefront control unit which provides the wavefront control signal to the corresponding one of the control sound output units, and the wavefront control unit generates the wavefront control signal to emit a synthesized sound from a virtual sound source toward the target area for sound control and cancel out the target sound in the target area for sound control, the synthesized sound being a sound synthesized from control sounds produced by the respective control sound output units, and the virtual sound source being located at a predetermined position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.