Global patent index - EP 1036447 A2

EP 1036447 A2 2000-09-20 - COMMUNICATIONS SYSTEM FOR MULTICHANNEL TRANSMISSION WITH CARRIER MODULATION

Title (en)

COMMUNICATIONS SYSTEM FOR MULTICHANNEL TRANSMISSION WITH CARRIER MODULATION

Title (de)

KOMMUNIKATIONSSYSTEM ZUR MEHRKANALÜBERTRAGUNG MIT EINTRÄGERMODULATION

Title (fr)

SYSTEME DE COMMUNICATION POUR LA TRANSMISSION MULTICANAUX A MODULATION DE PORTEUSE

Publication

EP 1036447 A2 (DE)

Application

EP 98951415 A

Priority

  • DE 19743167 A
  • EP 9805889 W

Abstract (en)

[origin: DE19743167A1] The invention relates to a communications system for digital data transmission in the long, medium and short-wave ranges. The data to be transmitted are advantageously distributed over several channels (ZF0, ZF1, ZF2) and then transmitted in each channel in carrier modulation mode (Mod). This means that the level of complexity of the equalisation filter used at the receiver end remains low, even with long anticipated echo transmission times. One of the channels is preferably used as a reference channel. Synchronisation parameters are drawn from this reference channel and applied to all of the channels.

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

H04L 5/06; H04J 1/06

IPC 8 full level (invention and additional information)

H04H 20/72 (2008.01); H04H 40/18 (2008.01); H04L 27/26 (2006.01)

CPC (invention and additional information)

H04H 40/18 (2013.01); H04H 20/72 (2013.01); H04L 27/2637 (2013.01)

Citation (search report)

See references of WO 9917491A3

Designated contracting state (EPC)

DE FR GB

EPO simple patent family

DE 19743167 A1 19990401; EP 1036447 A2 20000920; WO 9917491 A2 19990408; WO 9917491 A3 19990603

INPADOC legal status

2002-03-06 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020110

2000-09-20 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000502

2000-09-20 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB