Navigation apparatus
US8244470B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2007 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Aug 23, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C21/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A navigation apparatus that detects a position of a movable body includes map data storage means for storing map data; an autonomous sensor that detects information on behavior of the movable body; inertial position determination means for detecting an inertial position-determination position of the movable body, by accumulating the information detected by the autonomous sensor on a result of position determination performed using radio navigation; characteristic position detection means for detecting a characteristic position that is the inertial position-determination position at which the movable body has exhibited a characteristic behavior; correction amount detection means for extracting positional information on a road position corresponding to the characteristic position, by referring to the map data storage means; and position correction means for correcting the characteristic position using a Kalman filter based on a condition that the characteristic position is close to the road position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.