Gregory V Gough

US Patent:

7145943, Dec 5, 2006

Filed:

Aug 25, 2003

Appl. No.:

10/647817

Inventors:

Gregory W. Gough - Wheaton IL, US
Gregory L. Bella - Naperville IL, US

Assignee:

SBC Knowledge Ventures, L.P. - Reno NV
Westell Technologies, Inc. - Aurora IL

International Classification:

H04B 1/38
H04L 5/16
H04M 7/04

US Classification:

375222, 379398

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.

US Patent:

20010048716, Dec 6, 2001

Filed:

Dec 28, 2000

Appl. No.:

09/750406

Inventors:

Gregory Gough - Cary IL, US
Gregory Bella - Naperville IL, US
Thomas Nielsen - Elburn IL, US
Charles Feucht - Elgin IL, US
Thomas McCabe - Romeoville IL, US

International Classification:

H04B001/38
H04L005/16

US Classification:

375/222000

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.