EP 1197051 A1 20020417 - MODULATION SWITCH FOR THE GENERATION OF A SIMILTANEOUSLY PHASE- AND AMPLITUDE MODULATED SIGNAL
Title (en)
MODULATION SWITCH FOR THE GENERATION OF A SIMILTANEOUSLY PHASE- AND AMPLITUDE MODULATED SIGNAL
Title (de)
MODULATIONSSCHALTUNG ZUR ERZEUGUNG EINES ZUGLEICH PHASEN- UND AMPLITUDENMODULIERTEN SIGNALS
Title (fr)
CIRCUIT DE MODULATION POUR LA GENERATION D'UN SIGNAL A MODULATION DE PHASE ET D'AMPLITUDE SIMULTANEE
Publication
Application
Priority
- DE 0001269 W 20000425
- DE 19934181 A 19990721
Abstract (en)
[origin: WO0108370A1] This invention concerns a modulation switch (1) for the generation of a similtaneously phase- and amplitude-modulated HF-signal, in particular a QAM-HF-signal having a digital phase modulated stage (7) and final stage switched to thereto (15), which is connected via a first direct input or via a power control stage (13) to the output of the phase modulator stage, whereby one of the digital amplitude signal generation stages is separated from the phase modulator stage (5, 13) and is connected at least indirectly on the output side to a second input of the end stage or the power control step.
IPC 1-7
IPC 8 full level
H03C 5/00 (2006.01); H04L 27/36 (2006.01)
CPC (source: EP)
H03C 5/00 (2013.01); H04L 27/361 (2013.01)
Citation (search report)
See references of WO 0108370A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
DE 0001269 W 20000425; EP 00936644 A 20000425