Noise reduction scheme for a computer system
US7567677B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1998 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | Dec 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/16
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A noise reduction scheme is incorporated into a computer system for reducing environmental background noise when a user is listening to audio output through a standard set of headphones. The noise reduction scheme utilizes the processing power of the computer system as well as built-in components of the computer for enhancing the audio quality heard by the user. Environmental background noise is received by a built-in microphone, wherein a reciprocal noise canceling signal is generated by the computer's microprocessor. The reciprocal noise canceling signal is then mixed with audio from the computer system for reducing the environmental background noise heard by a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.