Bi-carrier demodulator with modulation

Claim 1

A BI-CARRIER MODULATOR AND DEMODULATOR COMPRISING: (A) INPUT MODULATION MEANS INCLUDING AN ELECTRO-MECHANICAL RESOLVER FOR PROVIDING AS A FUNCTION OF THE SETTING OF SAID RESOLVER A MODULATED SIGNAL AM+BM CONSISTING SUBSTANTIALLY OF: (1) A FIRST CARRIER A MODULATED BY A FIRST MODULATING SIGNAL MA, AND (2) A SECOND CARRIER B MODULATED BY A SECOND MODULATING SIGNAL MB. (B) FIRST COMBINING MEANS RESPONSIVE TO A MODULATED INPUT AM+BM FROM SAID INPUT MODULATION MEANS AND AN OPPOSITELY PHASED SECOND MODULATION SIGNAL INPUT -BM FOR PROVIDING A SEPARATE SAID FIRST MODULATED CARRIER AM OUTPUT; (C) SECOND COMBINING MEANS RESPONSIVE TO SAID MODULATED INPUT AM+BM AND AN OPPOSITELY PHASED FIRST MODULATION SIGNAL INPUT -AM FOR PROVIDING A SEPARATE SAID SECOND MODULATION SIGNAL BM OUTPUT; (D) FREQUENCY A SYNCHRONOUS DEMODULATION MEANS RESPONSIVE TO SAID FIRST COMBINING MEANS OUTPUT AM AND A SAID CARRIER A FOR PROVIDING A SAID FIRST MODULATION SIGNAL OUTPUT MA; (E) FREQUENCY B SYNCHRONOUS DEMODULATION MEANS RESPONSIVE TO SAID SECOND COMBINING MEANS OUTPUT BM AND A SAID CARRIER B FOR PROVIDING A SAID SECOND MODULATION SIGNAL OUTPUT MB; (F) FREQUENCY B SYNCHRONOUS MODULATION MEANS RESPONSIVE TO SAID SECOND CARRIER B AND SAID SECOND MODULATION SIGNAL OUTPUT MB FROM SAID FREQUENCY B DEMODULATION MEANS FOR PROVIDING TO SAID FIRST COMBINING MEANS SAID OPPOSITELY PHASED SECOND MODULATION SIGNAL -BM; AND (G) FREQUENCY A SYNCHRONOUS MODULATION MEANS RESPONSIVE TO SAID FIRST CARRIER A AND SAID FIRST MODULATION SIGNAL OUTPUT MA FROM SAID FREQUENCY A DEMODULATION MEANS FOR PROVIDING TO SAID SECOND COMBINING MEANS SAID OPPOSITELY PHASED FIRST MODULATION SIGNAL -AM.