Navigation system operating on the transit time principle
First Claim
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1. A SYSTEM OPERATING ON THE TRANSIT TIME PRINCIPLE FOR DETERMINING BOTH THE DISTANCE WHICH A POSITIONAL PLANE FP, CONTAINING A POINT P WHOSE POSITION IS TO BE DETERMINED, IS SPACED FROM THE PLANE OF SYMMETRY FS OF TWO FIXED POINTS E1 AND E2 WHICH THEMSELVES ARE SPACED A KNOWN DISTANCE FROM EACH OTHER, AS WELL AS THE PARTICULAR SIDE OF THE PLANE OF SYMMETRY ON WHICH THE POSITIONAL PLANE IS LOCATED, SAID SYSTEM COMPRISING, IN COMBINATION:
- (A) MEANS FOR MODULATING SIGNALS OF THE SAME FREQUENCY AND OF THE SAME PHASE ONTO CARRIERS OF DIFFERENT FREQUENCY AND TRANSMITTING THE THUS MODULATED CARRIERS FROM SAID FIXED POINTS, RESPECTIVELY;
(B) MEANS FOR PRODUCING AT POINT P A REFERENCE SIGNAL HAVING THE SAME FREQUENCY AS SAID SIGNALS, THE PHASE OF WHICH REFERENCE SIGNAL IS THE SAME AS THE PHASE OF THE SIGNALS TRANSMITTED FROM SAID FIXED POINTS AT THE INSTANT THEY ARE TRANSMITTED;
(C) MEANS FOR RECEIVING AND DEMODULATING AT P THE SIGNALS TRANSMITTED FROM SAID FIXED POINTS, AND FOR DETERMINING AS A FIRST PHASE DIFFERENCE THE PHASE DIFFERENCE BETWEEN THE TWO RECEIVED AND DEMODULATED SIGNALS;
(D) MEANS FOR AMPLIFYING THE DEMODULATED SIGNALS TO APPROXIMATELY EQUAL AMPLITUDES, FOR PRODUCING A SUM SIGNAL FROM THE THUS AMPLIFIED SIGNALS, AND FOR DETERMINING AS A SECOND PHASE DIFFERENCE THE PHASE DIFFERENCE BETWEEN SAID SUM SIGNAL AND SAID REFERENCE SIGNAL;
AND (E) MEANS FOR MULTIPLYING SAID FIRST AND SECOND PHASE DIFFERENCES.
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1 Claim
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1. A SYSTEM OPERATING ON THE TRANSIT TIME PRINCIPLE FOR DETERMINING BOTH THE DISTANCE WHICH A POSITIONAL PLANE FP, CONTAINING A POINT P WHOSE POSITION IS TO BE DETERMINED, IS SPACED FROM THE PLANE OF SYMMETRY FS OF TWO FIXED POINTS E1 AND E2 WHICH THEMSELVES ARE SPACED A KNOWN DISTANCE FROM EACH OTHER, AS WELL AS THE PARTICULAR SIDE OF THE PLANE OF SYMMETRY ON WHICH THE POSITIONAL PLANE IS LOCATED, SAID SYSTEM COMPRISING, IN COMBINATION:
- (A) MEANS FOR MODULATING SIGNALS OF THE SAME FREQUENCY AND OF THE SAME PHASE ONTO CARRIERS OF DIFFERENT FREQUENCY AND TRANSMITTING THE THUS MODULATED CARRIERS FROM SAID FIXED POINTS, RESPECTIVELY;
(B) MEANS FOR PRODUCING AT POINT P A REFERENCE SIGNAL HAVING THE SAME FREQUENCY AS SAID SIGNALS, THE PHASE OF WHICH REFERENCE SIGNAL IS THE SAME AS THE PHASE OF THE SIGNALS TRANSMITTED FROM SAID FIXED POINTS AT THE INSTANT THEY ARE TRANSMITTED;
(C) MEANS FOR RECEIVING AND DEMODULATING AT P THE SIGNALS TRANSMITTED FROM SAID FIXED POINTS, AND FOR DETERMINING AS A FIRST PHASE DIFFERENCE THE PHASE DIFFERENCE BETWEEN THE TWO RECEIVED AND DEMODULATED SIGNALS;
(D) MEANS FOR AMPLIFYING THE DEMODULATED SIGNALS TO APPROXIMATELY EQUAL AMPLITUDES, FOR PRODUCING A SUM SIGNAL FROM THE THUS AMPLIFIED SIGNALS, AND FOR DETERMINING AS A SECOND PHASE DIFFERENCE THE PHASE DIFFERENCE BETWEEN SAID SUM SIGNAL AND SAID REFERENCE SIGNAL;
AND (E) MEANS FOR MULTIPLYING SAID FIRST AND SECOND PHASE DIFFERENCES.
- (A) MEANS FOR MODULATING SIGNALS OF THE SAME FREQUENCY AND OF THE SAME PHASE ONTO CARRIERS OF DIFFERENT FREQUENCY AND TRANSMITTING THE THUS MODULATED CARRIERS FROM SAID FIXED POINTS, RESPECTIVELY;
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Current AssigneeAlbert Simianer, Alexander Prichodjko, Hartmut Hipp
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Original AssigneeAlbert Simianer, Alexander Prichodjko, Hartmut Hipp
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InventorsALEXANDER PRICHODJKO, ALBERT SIMIANER, HARTMUT HIPP
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Application NumberUS04/293,481Time in Patent Office1,870 DaysField of SearchUS Class Current342/453CPC Class CodesG01S 1/02 using radio waves G01S19/00...G01S 1/24 the synchronised signals be...G01S 1/30 the synchronised signals be...
