Method and device for suppressing noise in telephone devices
US6970558B1 · kind B1 · utility
11Cited by
3References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2000 |
| Grant date | Nov 29, 2005 |
| Priority date | — |
| Expiry date | Feb 1, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/082
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Device and method for noise suppression in telephone equipment, in particular with hands-free equipment, having a level discriminator, an additional filter with a group propagation time of less than 2 ms being inserted into the transmission and receiving paths of the telephone equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.