Noise cancellation method
US9280984B2 · kind B2 · utility
1Cited by
15References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Nov 7, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2410/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An embodiment of the invention provides a noise cancellation method for an electronic device. The method comprises: receiving an audio signal; applying a Fast Fourier Transform operation on the audio signal to generate a sound spectrum; acquiring a first spectrum corresponding to a noise and a second spectrum corresponding to a human voice signal from the sound spectrum; estimating a center frequency according to the first spectrum and the second spectrum; and applying a high pass filtering operation to the sound spectrum according to the center frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.