XDSL system with improved impedance circuitry
US7145943B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 25, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Jan 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B1/58
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An XDSL system comprising a hybrid circuit in operative communication with a transmission line and an XDSL modem associated with a subscriber premises. The hybrid circuit comprises a plurality of selectable impedance circuits having different impedance values. A controller selectively engages each of the impedance circuits in-line with the XDSL modem and the transmission line. The controller records the performance of the modem with each circuit engaged, and selects the desired impedance circuit as a function of the performance characteristics associated with each of the impedance circuits. The impedance circuit which provides the best performance characteristic is selected as the impedance circuit for normal modem operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.