EP 1410591 A2 20040421 - SUPRESSED CYCLE BASED CARRIER MODULATION USING AMPLITUDE MODULATION
Title (en)
SUPRESSED CYCLE BASED CARRIER MODULATION USING AMPLITUDE MODULATION
Title (de)
UNTERDRÜCKTE PERIODE TRÄGERMODULATION MIT AMPLITUDENMODULATION
Title (fr)
MODULATION DE PORTEUSE BASEE SUR LE CYCLE SINUSOIDAL UTILISANT LA MODULATION EN AMPLITUDE
Publication
Application
Priority
- US 0131105 W 20011004
- US 91605401 A 20010726
Abstract (en)
[origin: WO03013089A2] A sinusoidal RF carrier is modulated for the transmission of digital binary data streams through the amplitude supression of carrier wavelets, which are defined between zero crossover positions representing zero energy locations. This modulation is accomplished when the carrier is slightly amplitude modulated with a modulation signal that is equal in frequency to the carrier itself and the modulation always begins or ends upon the exact zero voltage crossing point of the RF cycle phase. The modulation is applied as a slight shift of the amplitude of any single cycle, each cycle representing a single bit of data. A single cycle of RF will either represent a "1" or "0" depending upon the amplitude of the cycle, relative to other adjacent cycles in the same carrier.
IPC 1-7
IPC 8 full level
H04L 27/00 (2006.01); H04L 27/02 (2006.01); H04L 27/04 (2006.01); H04L 27/06 (2006.01)
CPC (source: EP)
H04L 27/0004 (2013.01); H04L 27/02 (2013.01); H04L 27/04 (2013.01); H04L 27/06 (2013.01)
Citation (search report)
See references of WO 03013089A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03013089 A2 20030213; WO 03013089 A3 20030501; AU 2002211428 B2 20080710; CA 2455737 A1 20030213; CA 2455737 C 20091229; EP 1410591 A2 20040421; IS 7122 A 20040122
DOCDB simple family (application)
US 0131105 W 20011004; AU 2002211428 A 20011004; CA 2455737 A 20011004; EP 01979463 A 20011004; IS 7122 A 20040122