Error correction of messages by a passive radar system
US6778133B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2003 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Jun 24, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/782
- WIPO fieldMeasurement
- WIPO sectorInstruments
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, read-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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.