EP 1228617 A1 20020807 - METHOD AND TEST DEVICE FOR DETERMINING AND CORRECTING AN OFFSET IN DIRECT VOLTAGE ON A MODULATOR
Title (en)
METHOD AND TEST DEVICE FOR DETERMINING AND CORRECTING AN OFFSET IN DIRECT VOLTAGE ON A MODULATOR
Title (de)
VERFAHREN UND TESTGERÄT ZUR ERMITTLUNG UND KORREKTUR EINES GLEICHSPANNUNGSVERSATZES AN EINEM MODULATOR
Title (fr)
PROCEDE ET APPAREIL DE TEST POUR LA DETERMINATION ET LA CORRECTION D'UN DECALAGE DE TENSION CONTINUE DANS UN MODULATEUR
Publication
Application
Priority
- DE 0002464 W 20000726
- DE 19953873 A 19991109
Abstract (en)
[origin: WO0135592A1] The invention relates to a method for determining an offset in direct voltage and/or at least one correction value therefor on a modulator which, by modulating a digital or analog input signal on a transmission carrier, generates an output signal in which the information is located at least in the instantaneous frequency thereof or in its phase progression. The invention is characterized in that the offset in direct voltage and/or the correction value are determined in a directly mathematical manner from the progression of the phase error of the output signal with regard to an ideal signal.
IPC 1-7
IPC 8 full level
H03C 3/40 (2006.01); H04L 1/24 (2006.01); H04L 27/20 (2006.01); H04L 27/36 (2006.01)
CPC (source: EP)
H03C 3/40 (2013.01); H04L 1/24 (2013.01); H04L 27/20 (2013.01); H04L 27/364 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0135592 A1 20010517; CN 1390413 A 20030108; EP 1228617 A1 20020807; HU P0204076 A2 20030428
DOCDB simple family (application)
DE 0002464 W 20000726; CN 00815501 A 20000726; EP 00956106 A 20000726; HU P0204076 A 20000726