Delay free noise suppression
US7499855B2 · kind B2 · utility
2Cited by
2References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2004 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 22, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus, a circuit and a method are given, to realize very effective noise suppression for speech signals. Using thereby novel calculation methods allow for a real-time operation without any remarkable delay. Also a significant reduction of the overall processing power demands in conjunction with reduced memory requirements is achieved. Using the intrinsic advantages of that solution the circuit of the invention is manufactured with standard CMOS technology and/or standard Digital Signal Processors at low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.