Abstract: A location equipment includes a calibration unit (14) for calibrating scale factors used for calculating the distances traveled by left and right wheels of a vehicle from pulse signals delivered from wheel sensors (11) respectively installed in the left and right wheels based on GPS signals received by a GPS receiver (12), and an estimation unit (15 and 16) for estimating vehicle position and movement from the GPS signals received by the GPS receiver and the pulse signals delivered from the wheel sensors by using the scale factors calibrated by the calibration unit.

Abstract: An on-board navigation terminal includes a received data memory for storing received data concerning a navigating application received from a center system, based on a profile transmitted to the center system; and navigating application available data generating unit for generating available data based on map data stored in a map data memory, and the received data stored in the received data memory.

Abstract: A navigation apparatus includes a map database that records map data in a fixed storage medium, a map data read section for reading map data from the map database, and a navigation section for detecting the location of local apparatus, calculating a route to a destination specified by the user, and giving guidance to the destination according to the route, a map information acquisition section for acquiring map information from outside the navigation apparatus, and a map information update section for updating the map database with the map information acquired by the map information acquisition section. The navigation section includes an emphasis display section that displays updated data detected in a difference data detecting section, in an emphasized way, and an emphasis voice guidance section that emphasizes the data detected in the difference data detecting section.

Abstract: There is disclosed an on-board navigation terminal, comprises received data storing means for storing received data concerning a navigating application received from a center system, based on a profile transmitted to the center system through communicating means; and navigating application available data generating means for generating available data based on map data stored in map data storing means, and the received data stored in the received data storing means.

Abstract: There are disclosed a map data processing apparatus and a method thereof, designed to obtain updating operation information indicating the updating content of map data, and update the map data according to the obtained updating operation information.

Abstract: The navigation apparatus includes a map database that records map data in a fixed storage medium, a map data read section for reading map data from the map database, and a navigation section for detecting the location of local apparatus, calculating a proper route to a destination specified by the user, and giving guidance to the destination according to the route, characterized in that the navigation apparatus comprises a map information acquisition section for acquiring map information from outside the navigation apparatus and a map information update section for updating the map database with the map information acquired by the map information acquisition section and that the navigation section comprises an emphasis display section for displaying the data detected in a difference data detecting section in an emphasized way and an emphasis voice guidance section for giving emphasis guidance of the data detected in the difference data detecting section.

Abstract: An on-vehicle information processor is configured such that, when there is a request for access from application units to the same map data stored in a data management unit, a request analyzing unit maintains the map data unlocked so that the applications can access the map data.

Abstract: An on-vehicle information processor is configured such that, when there is a request for access from application units to the same map data stored in a data management unit, a request analyzing unit maintains the map data unlocked so that the applications can access the map data.

Abstract: An on-vehicle information processor includes a map reader for reading map data from a map data storage in response to an application unit, a map manager provided with a map object generating unit for generating a map object of a format suitable for a request from an application, and a map object output unit for converting the map object thus generated into a format suitable for execution of the application before outputting the map object thus converted to the application unit.

Abstract: In a global positioning system (GPS)/self-contained combination type navigation system for a vehicle, the GPS navigation data are received by the GPS antenna of the navigation system which are simultaneously transmitted from more than 3 pieces of satellites inclusively. From the GPS navigation data, GPS type velocity data is calculated, whereas self-contained type velocity data is calculated from self-contained type navigation data such as azimuth data and drive-distance data of the vehicle. Only when a difference between the self-contained type velocity data and the GPS type velocity data exceeds a threshold velocity, the GPS type velocity data is voided so as to determine the present position of the vehicle.