Method and system for active noise cancellation according to a type of noise
US9368096B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Feb 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10K2210/30351
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Microphone signals are received from a microphone. The microphone signals represent first sound waves. A determination is made about a type of noise that likely exists in the first sound waves. In response to the type of noise, cancellation signals are generated by filtering the microphone signals with at least one of: a first filter in response to the type of noise indicating that a first type of noise likely exists in the first sound waves; and a second filter in response to the type of noise indicating that a second type of noise likely exists in the first sound waves. In response to the cancellation signals, second sound waves are output from a speaker for cancelling at least some noise in the first sound waves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.