Error correction of messages by passive radar system
1 Assignment
0 Petitions
Accused Products
Abstract
Receiving a message including bits corresponding to an identifier, the identifier including a unique address for a aircraft transponder, extracting the unique address from the identifier, comparing the unique address to a set of predetermined addresses, changing selected ones of the identifier bits when the unique address is not one of the set of predetermined addresses, wherein the changing of the identifier bits changes a value of the unique address in the identifier, re-comparing the updated unique address to the set of predetermined addresses and processing the message when the unique address matches one of the set of predetermined addresses.
11 Citations
39 Claims
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1-19. -19. (cancelled)
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20. A method, comprising the steps of:
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receiving a message;
extracting information from the message;
comparing the information extracted from the message to previously stored information;
altering the information when the information differs from the previously stored information;
re-comparing the updated information to the previously stored information; and
processing the message when the updated information matches the previously stored information. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
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28. A method, comprising the steps of:
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receiving a message including an address;
determining a format of the message;
determining the address when the format matches an expected format; and
storing the address based on a criteria. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. A system, comprising:
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a database including a set of predetermined addresses; and
a processor receiving a message including bits corresponding to an identifier, the identifier including a unique address, and comparing the unique address to the set of predetermined addresses, wherein the processor changes at least one identifier bit in the message when the unique address is not in the set of predetermined addresses. - View Dependent Claims (39)
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Specification