EP 1969797 A2 20080917 - POLAR MODULATION SYSTEM
Title (en)
POLAR MODULATION SYSTEM
Title (de)
POLARMODULATIONSSYSTEM
Title (fr)
SYSTÈME DE MODULATION POLAIRE
Publication
Application
Priority
- IB 2006054763 W 20061212
- EP 05112209 A 20051215
- EP 06842443 A 20061212
Abstract (en)
[origin: WO2007069193A2] A system and a method for polar modulation achieved via generation of a multi-level pulse width modulated signal. The system in overview comprises a base-band pre-distortion element producing a pre-distorted signal carrying the amplitude information of the base-band signal, two comparators providing two inter-related pulse width modulated signals and a combination and amplification stage that provides a third pulse width modulated radio frequency signal carrying the amplitude and the phase of the base-band signal. The first and second comparators compare a radio -frequency signal carrying the phase information of the base-band signal with the pre-distorted signal and an inverted copy of the pre-distortion signal respectively.
IPC 8 full level
H04L 27/36 (2006.01)
CPC (source: EP)
H03F 1/3252 (2013.01); H03F 3/2173 (2013.01); H04L 27/361 (2013.01)
Citation (search report)
See references of WO 2007069193A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007069193 A2 20070621; WO 2007069193 A3 20080131; CN 101375574 A 20090225; EP 1969797 A2 20080917
DOCDB simple family (application)
IB 2006054763 W 20061212; CN 200680052817 A 20061212; EP 06842443 A 20061212