Data processing: vehicles – navigation – and relative location – Navigation – Employing position determining equipment
Reexamination Certificate
2011-01-11
2011-01-11
Nguyen, Kim T (Department: 3661)
Data processing: vehicles, navigation, and relative location
Navigation
Employing position determining equipment
Reexamination Certificate
active
07869950
ABSTRACT:
A positioning system10includes a positioning unit15configured to perform position estimation based on radio signals from artificial satellites and an autonomous navigation unit14configured to perform position estimation by autonomous navigation. In the positioning system10,the positioning unit15and the autonomous navigation unit14estimate the position of a mobile body in cooperation with each other; and when the number of the artificial satellites available is less than three, the positioning unit determines a point in an area calculated based on the radio signals which point is closest to an inertial-navigation-based position calculated by autonomous navigation, and uses the determined point as a satellite-based position estimated based on the radio signals.
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Maeda Iwao
Nagamiya Kiyomi
Tajima Yasuhiro
Ueda Akihiro
Nguyen Kim T
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
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