Patent application number | Description | Published |
20100106412 | Data processing apparatus - With respect to a non-road region route, which is in a region other than roads registered in map data, a navigation apparatus in a vehicle specifies three check items: travel times the vehicle traveled; a shortened distance reduced by traveling the non-road region route compared with a route registered in the map data; and presence or absence of a predetermined facility in the vicinity of the non-road region route. The navigation apparatus determines an accuracy degree as to whether the non-road region route is existent based on the specified check items, thereby determining whether the non-road region route is existent. A route guidance process is executed based on the non-road region route, which is determined to be existent. | 04-29-2010 |
20100114975 | Data processing apparatus - When a navigation apparatus generates, in the course of learning a new road, shape points information of the new road as well as new road information and connecting road information which respectively specify a road name, road attributes and other features of the new road and connecting roads, the generated information regarding the new road is examined if a corresponding road that corresponds to the new road is registered in case that a map database used by the navigation apparatus is updated. If the corresponding road is found in the updated map database, the generated information of the new road such as the shape points information is deleted, thereby securely invalidating the generated information that became unnecessary due to the update of the map database. | 05-06-2010 |
20100125408 | Navigation device, and method for updating map data and navigation - A setting section sets a determination region, which is a certain geography range around a destination in a map specified by map data. A generating section generates a new road, which is not registered in the map data, based on a moving track of a navigation device when a current position of the navigation device deviates from an existing road registered in the map data. A new road registering section registers the generated new road in a storing section when a determination section determines that the set determination region includes at least a part of the generated new road. The navigation device performs the routing assistance to the destination using both the existing road registered in the map data and the registered new road. | 05-20-2010 |
20100138143 | Map data processor and method for processing information based on map data - A map data processor includes: a road map database storing a road map data having a link data with setting information of the link and road network information with connection information between links; a communication element obtaining a new link data with connection object setting information of a connection object link and coordinate information of one end of the new link from an external device; and a controller. The controller extracts a link data of a link in a predetermined geographical area with a center of the one end of the new link. The controller determines that the new link is connected to an extracted link when the connection object setting information matches the setting information of the extracted link data. The controller registers the new link data and connection information between the new link and the connection object link in the road map data. | 06-03-2010 |
20100250124 | Road map data learning device and method for detecting and learning new road - A new road detection unit detects a new road according to a travel locus of a vehicle and road map data of a road map data learning device. The new road is not included in the road map data. A road learning unit learns the new road, which is detected by the new road detection unit, as a learned road being functional additionally to the road map data. A storage device stores a feature of an erroneous new road, which is erroneously detected by the new road detection unit, as learning-prohibited pattern information. The road learning unit restricts learning of a new road detected by the new road detection unit when the feature of the new road detected by the new road detection unit coincides with the learning-prohibited pattern information stored in the storage device. | 09-30-2010 |
20110172913 | ROAD LEARNING APPARATUS - In adding a new road to update road map data, an amendment process is executed to remove an accumulated error included in a travel locus based on dead reckoning navigation at the time of running the new road. The new road can be thus added in updating the road map data so as to fit more with an actual shape of the new road. | 07-14-2011 |
20110238294 | VEHICULAR NAVIGATION DEVICE - An identification unit identifies a departure point of a travel locus of a vehicle. The vehicle departs through the departure point from a departure road stored beforehand in map data. The map data has map link information including multiple links. An exit point set unit sets an exit point on a link included in the map link information. The link corresponds to the departure point of the departure road identified by the identification unit. A learning unit learns a new road based on the exit point set by the exit point set unit and the travel locus of the vehicle. | 09-29-2011 |
20130218367 | ROAD INFORMATION PROVIDING APPARATUS - A road information providing apparatus includes a position detection unit, a matching unit, a reference point ranking unit, a calculation unit, a weighting unit, and a transmit unit. The position detection unit detects a present position of a vehicle. The matching unit specifies reference points based on the present position and map data. The reference point ranking unit defines a ranking of each reference point. The calculation unit calculates a priority value of each forward road link corresponding to one of the reference points. The weighting unit recalculates a weighted priority value of each forward road link based on the priority value of corresponding forward road link and the ranking of corresponding reference point. The transmit unit transmits the weighted priority value of each forward road link in order of increasing weighted priority value to an in-vehicle device. | 08-22-2013 |