EP 1623497 A1 20060208 - METHOD FOR MODULATING A CARRIER SIGNAL, AND METHOD FOR DEMODULATING A MODULATED CARRIER SIGNAL
Title (en)
METHOD FOR MODULATING A CARRIER SIGNAL, AND METHOD FOR DEMODULATING A MODULATED CARRIER SIGNAL
Title (de)
VERFAHREN ZUR MODULATION EINES TRÄGERSIGNALS SOWIE VERFAHREN ZUR DEMODULATION EINES MODULIERTEN TRÄGERSIGNALS
Title (fr)
PROCEDE DE MODULATION D'UN SIGNAL PORTEUR ET PROCEDE DE DEMODULATION D'UN SIGNAL PORTEUR MODULE
Publication
Application
Priority
- DE 2004000222 W 20040209
- DE 10319636 A 20030502
Abstract (en)
[origin: WO2004098041A1] The invention relates to a novel method for modulating a carrier signal used for transmitting analog or digital message signals. The module k of elliptic functions is used as a modulation parameter instead of the amplitude or the frequency as in conventional amplitude and angle modulation methods. The carrier signal modulated according to the novel modulation method is thus provided with a constant amplitude and a fixed frequency while the signal form is chronologically modified at the rhythm of the message that is to be transmitted.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
H03C 1/02 (2013.01 - EP US); H03C 3/02 (2013.01 - EP US); H04L 27/00 (2013.01 - EP US)
Citation (search report)
See references of WO 2004098041A1
Citation (examination)
DATABASE INSPEC [online] THE INSTITUTION OF ELECTRICAL ENGINEERS, STEVENAGE, GB; 2003, SHIMAMOTO S: "Proposals of new modulation schemes employing elliptical circle", Database accession no. 7823291 & WCNC 2003 - IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE 16-20 MARCH 2003 NEW ORLEANS, LA, USA, vol. 1, 2003, WCNC 2003. 2003 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE RECORD (CAT. NO.03TH8659) IEEE PISCATAWAY, NJ, USA, pages 223 - 226, ISBN: 0-7803-7700-1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004098041 A1 20041111; DE 10319636 A1 20041118; EP 1623497 A1 20060208; US 2006126756 A1 20060615; US 2009310689 A1 20091217; US 7580473 B2 20090825
DOCDB simple family (application)
DE 2004000222 W 20040209; DE 10319636 A 20030502; EP 04709199 A 20040209; US 54745309 A 20090825; US 55552704 A 20040209