Communications: directive radio wave systems and devices (e.g. – With particular circuit – Display
Reexamination Certificate
2005-11-22
2005-11-22
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
With particular circuit
Display
C342S029000, C342S030000, C342S036000, C342S175000, C342S176000, C342S195000, C701S120000, C701S300000, C701S301000, C340S945000, C340S963000, C340S970000, C340S971000, C340S977000
Reexamination Certificate
active
06967616
ABSTRACT:
An improved system and methods for correlating an interrogation-based air traffic surveillance intruder, such as an Traffic alert and Collision Avoidance System (TCAS) intruder, and a GPS-based air traffic surveillance target, such as an Automatic Dependent Surveillance Broadcast (ADS-B) target to minimize or eliminate the display of two symbols for the same intruder/target on the CDTI of an aircraft. The method comprises the steps of receiving ADS-B data at a processing unit and calculating select component deltas for the ADS-B data versus an entry in a TCAS intruder file. Progressive weights are assigned to the deltas and the progressive weights are summed, resulting in a total confidence score. Total confidence scores of ADS-B target and TCAS intruder pairs are compared to determine correlation between the ADS-B target and the TCAS intruders.
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Garmin AT, Inc
Rolf Devon A.
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