Global patent index - EP 1068676 A1

EP 1068676 A1 2001-01-17 - GIGABIT ETHERNET TRANSCEIVER

Title (en)

GIGABIT ETHERNET TRANSCEIVER

Title (de)

GIGABIT ETHERNET SENDER-EMPFÄNGER

Title (fr)

EMETTEUR RECEPTEUR ETHERNET A CAPACITE DE GIGABITS

Publication

EP 1068676 A1 (EN)

Application

EP 99911246 A

Priority

  • US 9905145 W
  • US 3732898 A
  • US 7846698 A
  • US 7893398 A
  • US 14347698 A

Abstract (en)

[origin: WO9946867A1] A communication line having a plurality of twisted wire pairs, a plurality of transmitters (A, B, C, D, E, F, G, H), one transmitter at each end of each twisted wire pair and a plurality of receivers (A, B, C, D, E, F, G, H), one receiver at each end of each twisted wire pair, form part of a communications system having a prespecified threshold error. Each receiver receives a combination signal including a direct signal from the transmitter at the opposite end of the twisted wire pair with which the receiver is associated and a plurality of noise signals. A plurality of adaptive filters is responsive to the combination signal. Each adaptive filter has a plurality of taps each having a coefficient. Each tap is switchable between an active and an inactive state. A control device provides for adjustment of the transfer function of at least one of the adaptive filters by selectively deactivating the taps while ensuring that the error of the communications system does not exceed the threshold error.

IPC 1-7 (main, further and additional classification)

H04B 3/20

IPC 8 full level (invention and additional information)

H04B 3/20 (2006.01); H04B 3/32 (2006.01); H04B 3/46 (2006.01)

CPC (invention and additional information)

H04B 3/32 (2013.01); H04B 3/487 (2013.01)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9946867 A1 19990916; AU 2993499 A 19990927; CA 2649659 A1 19990916; CA 2670691 A1 19990916; EP 1068676 A1 20010117; EP 1068676 A4 20071128; JP 2002507076 A 20020305; JP 3660589 B2 20050615

INPADOC legal status

2011-10-19 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20110427

2008-08-06 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20080703

2007-11-28 [A4] SUPPLEMENTARY SEARCH REPORT

- Ref Legal Event Code: A4

- Effective date: 20071029

2007-05-23 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: BROADCOM CORPORATION

- Ref Legal Event Code: RAP1

2001-01-17 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20001009

2001-01-17 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE