Modulators for carrier communication systems
First Claim
1. AN ELECTRIC PHASE MODULATING ARRANGEMENT FOR A CARRIER COMMUNICATION SYSTEM COMPRISING FIRST AND SECOND WAVE GENERATORS FOR GENERATING WAVES OF FREQUENCIES F1 AND F2, RESPECTIVELY, WHERE F2 IS GREATER THAN F1, FIRST AND SECOND PHASE MODULATORS, MEANS FOR SUPPLYING THE WAVES OF FREQUENCY F1 AND A MODULATING WAVE TO THE FIRST PHASE MODULATOR, MEANS FOR SUPPLYING THE PHASE MODULATED WAVES AT THE OUTPUT OF THE FIRST PHASE MODULATOR TO A FREQUENCY CHANGER TO WHICH THE WAVES OF FREQUENCY F2 ARE ALSO SUPPLIED, MEANS FOR SELECTING THE LOWER SIDEBAND OF FREQUENCY F2-F1 FROM THE FREQUENCY CHANGER, AND MEANS FOR SUPPLYING THE SAID SIDEBAND AND THE SAID MODULATING WAVE TO THE SECOND PHASE MODULATOR, IN WHICH THE SAID FIRST AND SECOND PHASE MODULATORS HAVE THE SAME MODULATION RATIO AT FREQUENCIES F1 AND F2-F1, RESPECTIVELY, AND IN WHICH THE MODULATING WAVE IS SUPPLIED TO THE SAID FIRST AND SECOND MODULATORS IN RESPECTIVE PHASES WHICH DIFFER BY 180* AND WITH SUCH RELATIVE AMPLITUDES THAT AT LEAST THE SECOND HARMONIC DISTORTION OF THE PHASE MODULATED WAVES AT THE OUTPUT OF THE SECOND PHASE MODULATOR RESULTING FROM THE NON-LINEARITY OF THE CHARACTERISTICS OF THE PHASE MODULATORS IS SUBSTANTIALLY ELIMINATED.
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1 Claim
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1. AN ELECTRIC PHASE MODULATING ARRANGEMENT FOR A CARRIER COMMUNICATION SYSTEM COMPRISING FIRST AND SECOND WAVE GENERATORS FOR GENERATING WAVES OF FREQUENCIES F1 AND F2, RESPECTIVELY, WHERE F2 IS GREATER THAN F1, FIRST AND SECOND PHASE MODULATORS, MEANS FOR SUPPLYING THE WAVES OF FREQUENCY F1 AND A MODULATING WAVE TO THE FIRST PHASE MODULATOR, MEANS FOR SUPPLYING THE PHASE MODULATED WAVES AT THE OUTPUT OF THE FIRST PHASE MODULATOR TO A FREQUENCY CHANGER TO WHICH THE WAVES OF FREQUENCY F2 ARE ALSO SUPPLIED, MEANS FOR SELECTING THE LOWER SIDEBAND OF FREQUENCY F2-F1 FROM THE FREQUENCY CHANGER, AND MEANS FOR SUPPLYING THE SAID SIDEBAND AND THE SAID MODULATING WAVE TO THE SECOND PHASE MODULATOR, IN WHICH THE SAID FIRST AND SECOND PHASE MODULATORS HAVE THE SAME MODULATION RATIO AT FREQUENCIES F1 AND F2-F1, RESPECTIVELY, AND IN WHICH THE MODULATING WAVE IS SUPPLIED TO THE SAID FIRST AND SECOND MODULATORS IN RESPECTIVE PHASES WHICH DIFFER BY 180* AND WITH SUCH RELATIVE AMPLITUDES THAT AT LEAST THE SECOND HARMONIC DISTORTION OF THE PHASE MODULATED WAVES AT THE OUTPUT OF THE SECOND PHASE MODULATOR RESULTING FROM THE NON-LINEARITY OF THE CHARACTERISTICS OF THE PHASE MODULATORS IS SUBSTANTIALLY ELIMINATED.
Specification
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Current AssigneeGurnos King Howard, Richard Pitkin Sydney
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Original AssigneeGurnos King Howard, Richard Pitkin Sydney
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InventorsGURNOS KING HOWARD, RICHARD PITKIN SYDNEY
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Application NumberUS04/061,553Time in Patent Office1,191 DaysField of SearchUS Class Current332/147CPC Class CodesH03C 3/08 Modifications of modulator ...
