Electrical coding arrangements of the kind for providing an output that is representative, according to a digital code, of the magnitude of an input variable

Claim 1

AN ELECTRICAL CODING ARRANGEMENT COMPRISING: A PRIMARY WINDING FOR EXCITATION BY AN ELECTRIC SIGNAL HAVING AN AMPLITUDE THAT VARIES WITH TIME; A MULTIPLICITY OF FERROMAGNETIC POLES; A FIRST AND SECOND SECONDARY WINDINGS THAT ARE EACH WOUND TO EMBRACE THE POLES IN PAIRS AND TO EMBRACE THE POLES OF CONSECUTIVE PAIRS IN OPPOSITE SENSES THE PAIRINGS OF THE POLES FOR SAID FIRST AND SECOND SECONDARY WINDINGS BEING DIFFERENT; A FERROMAGNETIC COUPLING MEMBER THAT IS MOUNTED FOR MOVEMENT FROM ONE TO ANOTHER OF THE POLES TO ENHANCE THE INDUCTIVE COUPLING BETWEEN THE PRIMARY WINDING AND THE SECONDARY WINDINGS AT THOSE POLES IN TURN; AND MEANS RESPONSIVE TO SIGNALS INDUCED IN SAID FIRST AND SECOND SECONDARY WINDINGS RESPECTIVELY TO SUPPLY AN OUTPUT SIGNAL WHICH HAS AN AMPLITUDE THAT IS DEPENDENT UPON WHICHEVER OF THE TWO INDUCED SIGNALS HAS THE LARGER AMPLITUDE.