Global Patent Index - EP 0835561 B1

EP 0835561 B1 2000-03-15 - MODULATION METHOD AND CIRCUIT ARRANGEMENT FOR THE TRANSMISSION OF DATA SIGNALS

Title (en)

MODULATION METHOD AND CIRCUIT ARRANGEMENT FOR THE TRANSMISSION OF DATA SIGNALS

Title (de)

MODULATIONSVERFAHREN UND -SCHALTUNGSANORDNUNG ZUR ÜBERTRAGUNG VON DATENSIGNALEN

Title (fr)

PROCEDE ET CIRCUIT DE MODULATION POUR TRANSMETTRE DES SIGNAUX DE DONNEES

Publication

EP 0835561 B1 (DE)

Application

EP 96920700 A

Priority

  • DE 9601124 W
  • DE 19523414 A
  • DE 19605381 A

Abstract (en)

[origin: WO9701894A1] The data source (for long-wave single-sideband transmission of the RDS signal (SSB-RDS))is an RDS coder capable of QDSB modulation with or without the carrier frequency. The RDS-SSB signal with vestigial carrier is produced by the filter method and converted to the transmission frequency by mixing. The road traffic information carrier which can be fed into the RDS coder can thus be used as the vestigial carrier. A known all-band receiver with synchronous demodulator is used for receiving the SSB-RDS signal. Further processing of the RDS baseband (biphase signal) is a straightforward matter.

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

H04H 1/00

IPC 8 full level (invention and additional information)

H04L 27/36 (2006.01); H04H 20/02 (2008.01); H04H 20/36 (2008.01); H04L 27/38 (2006.01)

CPC (invention and additional information)

H04H 20/36 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9701894 A1 19970116; AT 190786 T 20000415; BG 102091 A 19980731; BG 62545 B1 20000131; CZ 288335 B6 20010516; CZ 9703516 A3 19980415; EE 03365 B1 20010215; EP 0835561 A1 19980415; EP 0835561 B1 20000315; HU 220526 B1 20020328; HU 9802364 A2 19990201; HU 9802364 A3 20000529; PL 181135 B1 20010531; PL 324262 A1 19980511; RO 119400 B1 20040830; RU 2194368 C2 20021210; SK 174797 A3 19981104

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