EP 1277272 A2 20030122 - FREQUENCY CONVERTER
Title (en)
FREQUENCY CONVERTER
Title (de)
FREQUENZUMSETZER
Title (fr)
PROCEDE ET SYSTEME DE CONVERSION-ELEVATION DE FREQUENCE AVEC DIFFERENTS TYPES DE MODULATION
Publication
Application
Priority
- US 0112086 W 20010413
- US 54892300 A 20000413
Abstract (en)
[origin: WO0180418A2] A method and system is described wherein an information signals is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In a first modulation embodiment, one information signal is phase modulated onto the carrier signal as part of the up-conversion process. In a second modulation embodiment, two information signals are multiplied, and, as part of the up-conversion process, one signal is phase modulated onto the carrier and the other signal is amplitude modulated onto the carrier. In a third modulation embodiment, one information signal is phase modulated onto the "I" phase of the carrier signal as part of the up-conversion process and a second information signal is phase modulated onto the "Q" phase of the carrier as part of the up-conversion process. In a fourth modulation embodiment, four information signals are phase and amplitude modulated onto the "I" and "Q" phases of the carrier as part of the up-conversion process. There are at least two implementations of each of the aforementioned embodiment.
IPC 1-7
IPC 8 full level
CPC (source: EP)
Citation (search report)
See references of WO 0180418A2
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 0180418 A2 20011025; WO 0180418 A3 20021031; AU 5345301 A 20011030; EP 1277272 A2 20030122
DOCDB simple family (application)
US 0112086 W 20010413; AU 5345301 A 20010413; EP 01926955 A 20010413