Method and design for increasing signal to noise ratio in xDSL modems
US7065143B1 · kind B1 · utility
0Cited by
11References
27Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 26, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Feb 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/0002
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A DSL modem comprises an additional transformer and additional coils on a coupling transformer to couple a received signal on a transmission line to a receive path without loss due to an active impedance. The ratio of windings on the coils allows gain to be introduced to improve the signal to noise ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.