Navigation apparatus and position detection method

Details Navigation apparatus and position detection method Navigation apparatus and position detection method

2011-05-17

2011-05-17

Zanelli, Michael J. (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C701S220000

Reexamination Certificate

active

07945384

ABSTRACT:
A navigation apparatus includes: a main unit to be attached to a mobile object through a base section, the main unit detecting a current position of the mobile object based on positioning information; a section that calculates acceleration applied to the mobile object based on the mobile object's speed; an acceleration sensor that observes acceleration applied to the main unit; a section that calculates an attachment inclination of the acceleration sensor with respect to the mobile object; a section that estimates, while the positioning information is not being supplied, a speed and position of the mobile object; a section that detects whether the main unit is mounted on the base section; and a section that forces the above section to stop estimating the speed when the main unit is not mounted on the base section.

REFERENCES:
patent: 5862511 (1999-01-01), Croyle et al.
patent: 6816783 (2004-11-01), Hashima et al.
patent: 6895313 (2005-05-01), Imada et al.
patent: 2004/0254722 (2004-12-01), Spencer et al.
patent: 2004-138553 (2004-05-01), None

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