Echo suppressor for facsimile calls in a satellite network
US5793755A · kind A · utility
3Cited by
9References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1995 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Jul 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/32795
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A signal classifier and a echo suppressor for a facsimile calls in an echo prone network. The signal classifier quickly and reliably differentiates facsimile calls from voice and modem calls. The echo suppressor suppresses echo and has a variable hangover time which avoids attenuating and distorting a return transmission signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.