EP 1497962 A1 20050119 - METHOD AND DEVICE FOR PULSE SHAPING QPSK SIGNALS
Title (en)
METHOD AND DEVICE FOR PULSE SHAPING QPSK SIGNALS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR IMPULSFORMUNG QPSK-SIGNALE
Title (fr)
PROCEDE ET DISPOSITIF DE MISE EN FORME DE SIGNAUX QPSK
Publication
Application
Priority
US 0212806 W 20020423
Abstract (en)
[origin: WO03092233A1] A baseband shaping device includes a plurality of coefficient memories, each memory having an input address bus, a multiplexor input and a coefficient value output. The device further includes a plurality shift registers, each having an input coupled to a respective one of the coefficient value outputs, a digital to analog clock input and an output. The device further includes a plurality of negative value circuits, each circuit having an input coupled to a respective one of the first shift register outputs and an output, a plurality of multiplexors, each having a first input coupled to a respective one of the first shift register outputs and a second input coupled to a respective one of the output of the plurality of negative value circuits. The device further includes a plurality of second shift registers, and an adder having a plurality of inputs coupled to the plurality of second shift registers.
IPC 1-7
IPC 8 full level
H04L 27/20 (2006.01); H04L 25/03 (2006.01)
CPC (source: EP)
H04L 25/03834 (2013.01)
Citation (search report)
See references of WO 03092233A1
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 03092233 A1 20031106; AU 2002252711 A1 20031110; AU 2002252711 B2 20060504; CA 2483985 A1 20031106; EP 1497962 A1 20050119; JP 2005524282 A 20050811
DOCDB simple family (application)
US 0212806 W 20020423; AU 2002252711 A 20020423; CA 2483985 A 20020423; EP 02721801 A 20020423; JP 2004500460 A 20020423