Method and apparatus for selectively terminating current in a digital subscriber line (DSL) modem
US7676031B2 · kind B2 · utility
3Cited by
6References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2004 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Sep 3, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2601
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for selectively terminating sealing current in an asymmetric digital subscriber line modem is provided. The technique comprises providing a mechanism (e.g., a resistor or suitable current sink) to a DSL modem (e.g. an ADSL modem or any XDSL modem used where POTS is underlying service). The mechanism is operable to be dynamically switched on and off and to operate under low current conditions. The system allows for provision of DSL (e.g., ADSL or XDSL where POTS is the underlying current) in the absence of plain old telephone service (POTS) and for improved performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.