Noise mitigation and mode switching in communications terminals such as telephones
US5058153A · kind A · utility
27Cited by
8References
10Claims
0Family size
Inventors
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Oct 15, 1991 |
| Priority date | — |
| Expiry date | Dec 27, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M9/085
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A circuit to improve noise mitigation and mode switching in telephony, wherein the noise-floor level is continuously estimated by comparing its stored current value to the signal level value and substituting the latter for the former if it is less than the former.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.