Global Patent Index - EP 1260072 A1

EP 1260072 A1 2002-11-27 - DSL REPEATER

Title (en)

DSL REPEATER

Title (de)

DSL-ZWISCHENVERSTÄRKER

Title (fr)

REPETEUR DSL

Publication

EP 1260072 A1 (EN)

Application

EP 01916220 A

Priority

  • US 0106017 W
  • US 18439200 P
  • US 56947000 A

Abstract (en)

[origin: WO0163866A1] A DSL repeater includes an upstream amplifying element (314) and upstream filter (312), a downstream amplifying element (304) and a downstream filter (302). The amplifying elements and filters are disposed between a pair of electromagnetic hybrids (322, 324), which couple the repeater to the loop. The downstream filter reduces or eliminates the effect of upstream signal leakage through the hybrid on the downstream signal. Likewise, the upstream filter reduces or eliminates the effect of downstream signal leakage through the hybrid on the upstream signal. The amplifying elements may comprise amplifying equalizers, which provide more amplification to higher frequency signals than to lower frequency signals. A dedicated twisted pair may deliver DC power to the repeater from the center office.

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

H04L 25/52

IPC 8 full level (invention and additional information)

H04B 3/36 (2006.01); H04B 3/38 (2006.01); H04L 5/14 (2006.01); H04L 25/52 (2006.01); H04M 11/06 (2006.01)

CPC (invention and additional information)

H04L 5/14 (2013.01); H04B 3/36 (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 TR

EPO simple patent family

WO 0163866 A1 20010830; AU 4327401 A 20010903; EP 1260072 A1 20021127; EP 1260072 A4 20030416

INPADOC legal status


2007-12-19 [18R] REFUSED

- Effective date: 20071005

2003-08-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030623

2003-04-16 [A4] DESPATCH OF SUPPLEMENTARY SEARCH REPORT

- Effective date: 20030228

2003-04-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7H 04B 3/38 A

2003-04-16 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: 7H 04M 11/06 B

2002-11-27 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020920

2002-11-27 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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

2002-11-27 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI