Time diversity communication system
First Claim
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10. A DIVERSITY COMMUNICATION SYSTEM COMPRISING:
- A RADIO FREQUENCY TRANSMISSION MEDIUM;
A FIRST RADIO FREQUENCY TRANSMITTER COUPLED TO ONE END OF SAID MEDIUM FOR TRANSMITTING A FIRST RADIO FREQUENCY SIGNAL HAVING A FIRST RADIATION CHARACTERISTIC THROUGH SAID MEDIUM;
A FIRST RADIO FREQUENCY RECEIVER COUPLED TO THE OTHER END OF SAID MEDIUM FOR RECEIVING ONLY SAID FIRST RADIO FREQUENCY SIGNAL;
A SECOND RADIO FREQUENCY TRANSMITTER COUPLED TO SAID ONE END OF SAID MEDIUM FOR TRANSMITTING A SECOND RADIO FREQUENCY SIGNAL HAVING A SECOND RADIATION CHARACTERISTIC DISTINCT FROM SAID FIRST RADIATION CHARACTERISTIC THROUGH SAID MEDIUM;
A SECOND RADIO FREQUENCY RECEIVER COUPLED TO SAID OTHER END OF SAID MEDIUM FOR RECEIVING ONLY SAID SECOND RADIO FREQUENCY SIGNAL;
SAID FIRST AND SECOND RADIATION CHARACTERISTICS PROVIDING TWO DISTINCT COMMUNICATION PATHS THROUGH SAID MEDIUM;
A SOURCE OF INFORMATION SIGNAL;
A FIRST MEANS COUPLED BETWEEN SAID SOURCE AND SAID FIRST TRANSMITTER TO COUPLE SAID INFORMATION SIGNAL DIRECTLY TO SAID FIRST TRANSMITTER FOR TRANSMISSION BY SAID FIRST RADIO FREQUENCY SIGNAL TO SAID FIRST RECEIVER;
A SECOND MEANS COUPLED BETWEEN SAID SOURCE AND SAID SECOND TRANSMITTER TO COUPLE SAID INFORMATION SIGNAL TO SAID SECOND TRANSMITTER AFTER A TIME DELAY EQUAL TO A PREDETERMINED TIME FOR TRANSMISSION BY SAID SECOND RADIO FREQUENCY SIGNAL TO SAID SECOND RECEIVER;
SAID PREDETERMINED TIME BEING SUFFICIENT TO PROVIDE UNCORRELATED SIGNALS WITH RESPECT TO FADING IN EACH OF SAID PATHS;
A THIRD MEANS COUPLED TO THE OUTPUT OF SAID FIRST RECEIVER TO TIME DELAY SAID INFORMATION SIGNAL RECEIVED BY SAID FIRST RECEIVER AN AMOUNT EQUAL TO PREDETERMINED TIME TO PRODUCE TIME COINCIDENCE BETWEEN SAID INFORMATION SIGNAL AT THE OUPUT OF SAID THIRD MEANS, AND SAID RECEIVED INFORMATION SIGNAL AT THE OUTPUT OF SAID SECOND RECEIVER;
AND A FOURTH MEANS COUPLED TO THE OUTPUT OF SAID THIRD MEANS AND THE OUTPUT OF SAID SECOND RECEIVER TO SEPARATELY UTILIZE SAID TIME COINCIDENT INFORMATION SIGNALS.
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10 Claims
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10. A DIVERSITY COMMUNICATION SYSTEM COMPRISING:
- A RADIO FREQUENCY TRANSMISSION MEDIUM;
A FIRST RADIO FREQUENCY TRANSMITTER COUPLED TO ONE END OF SAID MEDIUM FOR TRANSMITTING A FIRST RADIO FREQUENCY SIGNAL HAVING A FIRST RADIATION CHARACTERISTIC THROUGH SAID MEDIUM;
A FIRST RADIO FREQUENCY RECEIVER COUPLED TO THE OTHER END OF SAID MEDIUM FOR RECEIVING ONLY SAID FIRST RADIO FREQUENCY SIGNAL;
A SECOND RADIO FREQUENCY TRANSMITTER COUPLED TO SAID ONE END OF SAID MEDIUM FOR TRANSMITTING A SECOND RADIO FREQUENCY SIGNAL HAVING A SECOND RADIATION CHARACTERISTIC DISTINCT FROM SAID FIRST RADIATION CHARACTERISTIC THROUGH SAID MEDIUM;
A SECOND RADIO FREQUENCY RECEIVER COUPLED TO SAID OTHER END OF SAID MEDIUM FOR RECEIVING ONLY SAID SECOND RADIO FREQUENCY SIGNAL;
SAID FIRST AND SECOND RADIATION CHARACTERISTICS PROVIDING TWO DISTINCT COMMUNICATION PATHS THROUGH SAID MEDIUM;
A SOURCE OF INFORMATION SIGNAL;
A FIRST MEANS COUPLED BETWEEN SAID SOURCE AND SAID FIRST TRANSMITTER TO COUPLE SAID INFORMATION SIGNAL DIRECTLY TO SAID FIRST TRANSMITTER FOR TRANSMISSION BY SAID FIRST RADIO FREQUENCY SIGNAL TO SAID FIRST RECEIVER;
A SECOND MEANS COUPLED BETWEEN SAID SOURCE AND SAID SECOND TRANSMITTER TO COUPLE SAID INFORMATION SIGNAL TO SAID SECOND TRANSMITTER AFTER A TIME DELAY EQUAL TO A PREDETERMINED TIME FOR TRANSMISSION BY SAID SECOND RADIO FREQUENCY SIGNAL TO SAID SECOND RECEIVER;
SAID PREDETERMINED TIME BEING SUFFICIENT TO PROVIDE UNCORRELATED SIGNALS WITH RESPECT TO FADING IN EACH OF SAID PATHS;
A THIRD MEANS COUPLED TO THE OUTPUT OF SAID FIRST RECEIVER TO TIME DELAY SAID INFORMATION SIGNAL RECEIVED BY SAID FIRST RECEIVER AN AMOUNT EQUAL TO PREDETERMINED TIME TO PRODUCE TIME COINCIDENCE BETWEEN SAID INFORMATION SIGNAL AT THE OUPUT OF SAID THIRD MEANS, AND SAID RECEIVED INFORMATION SIGNAL AT THE OUTPUT OF SAID SECOND RECEIVER;
AND A FOURTH MEANS COUPLED TO THE OUTPUT OF SAID THIRD MEANS AND THE OUTPUT OF SAID SECOND RECEIVER TO SEPARATELY UTILIZE SAID TIME COINCIDENT INFORMATION SIGNALS.
- A RADIO FREQUENCY TRANSMISSION MEDIUM;
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Current AssigneeKarel J. Staller, Robert Thomas Adams
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Original AssigneeKarel J. Staller, Robert Thomas Adams
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InventorsAdams, Robert T., Staller, Karel J.
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Application NumberUS04/199,896Time in Patent Office1,135 DaysField of SearchUS Class Current455/504CPC Class CodesH04L 1/08 by repeating transmission, ...
