Method for the detection of impedances and for the qualification of the telephone lines
US7302046B2 · kind B2 · utility
4Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2003 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jan 5, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/30
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for detection of impedances, in particular along inductances, in telephone lines of the type with two metal wires as signal conductors (twisted pair), having the following method steps: The invention also relates to a method for qualification of telephone lines of the type with two metal wires as signal conductors (twisted pair) for suitability for data transmissions based on the DSL Standard, and to use of a DSL modem for carrying out methods such as this.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.