Global Patent Index - EP 0970574 A1

EP 0970574 A1 2000-01-12 - RECEIVING CIRCUIT FOR TRANSMISSION SYSTEMS WITH COPPER CABLES

Title (en)

RECEIVING CIRCUIT FOR TRANSMISSION SYSTEMS WITH COPPER CABLES

Title (de)

EMPFANGSSCHALTUNG FÜR ÜBERTRAGUNGSSYSTEME MIT KUPFERKABELN

Title (fr)

CIRCUIT DE RECEPTION POUR SYSTEMES DE TRANSMISSION COMPORTANT DES CABLES EN CUIVRE

Publication

EP 0970574 A1 (DE)

Application

EP 98906792 A

Priority

  • CH 9800108 W
  • CH 71497 A

Abstract (en)

[origin: WO9843397A1] This invention concerns a receiving circuit used in the construction of transmission systems with copper cables which can have differing characteristics, in particular, length and diameter. This receiving circuit contains a digital signal processing receiving unit (RX) which can be connected to a transmitting unit (TX) via a filter (FR) and a copper cable (SL1, SL2). The filter (FR) is provided with a high-pass characteristic for compensation of distortions from attenuation so that signal components in the low-frequency range are at least attenuated so that the dynamics of the signals transmitted via copper cable (SL1, SL2) via conductors of the largest possible diameter are reduced so that the resolution of the digital component of the receiving unit (RX) suffices for its processing, and the signal components in the low-frequency range are maximally dampened, so that the maximal attenuation arising in the frequency range used without the filter (FR) scarcely increases after use of the filter (FR) with copper cables (SL1, SL2) of the smallest possible diameter conductor.

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

H04L 25/03; H04B 3/14

IPC 8 full level (invention and additional information)

H04B 1/58 (2006.01); H04L 5/14 (2006.01); H04L 25/04 (2006.01)

CPC (invention and additional information)

H04B 1/58 (2013.01); H04L 5/1423 (2013.01); H04B 1/581 (2013.01); H04B 1/583 (2013.01)

Citation (search report)

See references of WO 9843397A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9843397 A1 19981001; AU 6288398 A 19981020; AU 737299 B2 20010816; EP 0970574 A1 20000112; NO 994688 A 19990924; NO 994688 D0 19990924

INPADOC legal status


2004-04-07 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20031001

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991025

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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