Abstract: A server is connected to a communication terminal and configured to receive a departure point, a destination, and a route retrieval request from the departure point to the destination from the terminal and to deliver a route retrieved in response to the received route retrieval request to the terminal. When the route retrieval request is acquired from the terminal, the server acquires route information related to a target route that is a route corresponding to a predetermined distance from the departure point in a terminal-recommended route that is a route from the departure point to the destination and is retrieved by using terminal-side map information provided in the terminal. The server retrieves a route to the destination that includes at least a part of the target route by using device-side map information provided in the server and the route information, and delivers the retrieved route to the terminal.

Abstract: According to one embodiment, by way of example, a vehicle control device includes: an acquisition unit configured to acquire map data indicating an absolute azimuth of a linear road surface sign disposed on a road surface on which a vehicle travels, and image data obtained by imaging surroundings of the vehicle with a vehicle-mounted camera included in the vehicle; and a correction unit configured to detect the road surface sign from the acquired image data, calculate a relative azimuth of the road surface sign with respect to the vehicle on the image data, calculate a shift of an azimuth in which the vehicle moves based on the calculated relative azimuth and the absolute azimuth of the detected road surface sign indicated by the map data, and correct the azimuth in which the vehicle moves based on the calculated shift.

Abstract: A vehicle position estimation device according to an example of an embodiment includes a parking lot data acquisition unit that acquires parking lot data capable of identifying an absolute orientation and an absolute position of a road surface marking provided on a road surface of a parking lot, an image data acquisition unit that acquires image data obtained by an on-board camera that captures a situation around a vehicle, and a position estimation unit that calculates a relative orientation and a relative position of the road surface marking with respect to the vehicle on the image data by detecting road surface marking data related to the road surface marking from the image data, and that estimates an actual orientation and an actual position of the vehicle on the basis of the calculated relative orientation, the calculated relative position, and the parking lot data.

Abstract: A communication terminal is connected to a server device in a bidirectionally communicable manner and configured to transmit a departure point, a destination, and a route retrieval request from the departure point to the destination to the server device and to acquire a route that is retrieved and delivered by the server device in response to the route retrieval request. The communication terminal receives, from the server device, location road information for identifying a position of a moving object on a map and identifying the position of the moving object based on the received location road information. The communication terminal transmits, to the server device, the route retrieval request in which the identified position of the moving object is set as the departure point, and receives, from the server device, a route that is retrieved by the server device in response to the route retrieval request.

Abstract: According to one embodiment, by way of example, a vehicle control device includes: an acquisition unit configured to acquire map data indicating an absolute azimuth of a linear road surface sign disposed on a road surface on which a vehicle travels, and image data obtained by imaging surroundings of the vehicle with a vehicle-mounted camera included in the vehicle; and a correction unit configured to detect the road surface sign from the acquired image data, calculate a relative azimuth of the road surface sign with respect to the vehicle on the image data, calculate a shift of an azimuth in which the vehicle moves based on the calculated relative azimuth and the absolute azimuth of the detected road surface sign indicated by the map data, and correct the azimuth in which the vehicle moves based on the calculated shift.

Abstract: Route search devices, systems, and programs obtain current traffic information indicating traffic conditions at a present time and obtain statistical traffic information, the statistical traffic information being statistical information obtained by collecting statistics of histories of traffic information. The devices, systems, and programs determine a degree of traffic congestion of a road at the present time, identify travel time for a road whose degree of traffic congestion is greater than or equal to a threshold, based on the current traffic information, and identify travel time for a road whose degree of traffic congestion is less than the threshold, based on the statistical traffic information. The devices, systems, and programs then search for a route to a destination, using the identified travel time.

Abstract: A communication terminal is connected to a server device in a bidirectionally communicable manner and configured to transmit a departure point, a destination, and a route retrieval request from the departure point to the destination to the server device and to acquire a route that is retrieved and delivered by the server device in response to the route retrieval request. The communication terminal receives, from the server device, location road information for identifying a position of a moving object on a map and identifying the position of the moving object based on the received location road information. The communication terminal transmits, to the server device, the route retrieval request in which the identified position of the moving object is set as the departure point, and receives, from the server device, a route that is retrieved by the server device in response to the route retrieval request.

Abstract: A server is connected to a communication terminal and configured to receive a departure point, a destination, and a route retrieval request from the departure point to the destination from the terminal and to deliver a route retrieved in response to the received route retrieval request to the terminal. When the route retrieval request is acquired from the terminal, the server acquires route information related to a target route that is a route corresponding to a predetermined distance from the departure point in a terminal-recommended route that is a route from the departure point to the destination and is retrieved by using terminal-side map information provided in the terminal. The server retrieves a route to the destination that includes at least a part of the target route by using device-side map information provided in the server and the route information, and delivers the retrieved route to the terminal.

Abstract: Route search systems, methods, and programs search for a recommended route using a cost value of a link or a node that constitutes a route. The systems, methods, and programs calculate the cost value of the link or the node on the basis of calculation material information that serves as a material for calculating the cost value, and specify a reliability degree of the calculated cost value of the link or the node on the basis of a number of pieces of the calculation material information used to calculate the cost value of the link or the node. The systems, methods, and programs correct the cost value of the link or the node, the reliability degree of which has been specified, on the basis of the specified reliability degree, and search for the recommended route using the corrected cost value.

Abstract: Route search systems, methods, and programs search for a recommended route for transfer with switching between a plurality of transportation modes. The systems, methods, and programs acquire link information for specifying a link for transfer by each of the plurality of transportation modes and connection information related to connection between links for transfer by different transportation modes, and set a condition for switching from a first transportation mode to a second transportation mode, which is different from the first transportation mode, on the basis of a combination of the first transportation mode and the second transportation mode. The systems, methods, and programs search for the recommended route for transfer with switching between the plurality of transportation modes on the basis of the link information, the connection information, and the set condition, the recommended route connecting links for transfer by different transportation modes.

Abstract: Route search systems, methods, and programs search for a recommended route using a cost value of a link or a node that constitutes a route. The systems, methods, and programs calculate the cost value of the link or the node on the basis of calculation material information that serves as a material for calculating the cost value, and specify a reliability degree of the calculated cost value of the link or the node on the basis of a number of pieces of the calculation material information used to calculate the cost value of the link or the node. The systems, methods, and programs correct the cost value of the link or the node, the reliability degree of which has been specified, on the basis of the specified reliability degree, and search for the recommended route using the corrected cost value.

Abstract: Route search systems, methods, and programs search for a recommended route for transfer with switching between a plurality of transportation modes. The systems, methods, and programs acquire link information for specifying a link for transfer by each of the plurality of transportation modes and connection information related to connection between links for transfer by different transportation modes, and set a condition for switching from a first transportation mode to a second transportation mode, which is different from the first transportation mode, on the basis of a combination of the first transportation mode and the second transportation mode. The systems, methods, and programs search for the recommended route for transfer with switching between the plurality of transportation modes on the basis of the link information, the connection information, and the set condition, the recommended route connecting links for transfer by different transportation modes.

Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

Abstract: A navigation device stores road data in a storage part. The road data includes a consecutive connection of a plurality of links as a link queue, the plurality of links acquired by sectioning a road length into a plurality of pieces. The navigation device includes a guidance part that performs route search and guidance to a destination using the road data. The link queue includes a standard link for which, based on a sectioned link of a specific road stored in the storage part, information relating to the sectioned link is stored as road-related information in the storage part, and an invariance link for which the road-related information is not stored in the storage part if there is no difference in the road-related information compared to an adjacent link in the link queue. A navigation road data creating device is also provided.

Abstract: Navigation apparatuses, methods, and programs having conducted a search for an original driving route that goes through a plurality of destinations in a designated order and provided route guidance based on the original driving route, receive an input of a new destination. Upon receipt of the new destination, the apparatuses, methods, and programs designate an ordinal position of the new destination in terms of the designated order and receive an input of a destination change request. When the destination change request is received, the apparatuses, methods, and programs automatically delete one or more of the destinations in ordinal positions within the designated order that are before the ordinal position of the new destination, conduct a new search for a new driving route based on the new destination, and output the new driving route.

Abstract: A map updating system includes: an update processing unit for performing update processing by reading data required in the update processing from a cache area of a memory when the data are stored in the cache area and from a map database when the data are not stored in the cache area; a cache storage unit for storing the data read by the update processing unit in the cache area; a processing memory capacity determination unit for determining a processing memory capacity, which is a capacity of the memory required as an update processing area, on the basis of the content of map data to be subjected to the update processing; and a cache capacity determination unit for determining a cache capacity, which is a capacity of the memory allocated to the cache area, on the basis of the processing memory capacity.

Abstract: Devices and methods search for a route from a departure point to a destination and provide guidance based on the route that is found. The devices and methods associate a street name with a parcel in which map data is associated with an area that is bounded by specified coordinates and, when the street name is input, extract the parcel in which the street name is located. The devices and methods extract a city area name in the extracted parcel and display the city area name such that the city area name can be selected. The devices and methods extract a local area name that is included in the parcel in which the selected city area name is located, display the local area name such that the local area name can be selected, and specify a house number within the parcel in which the selected local area name is located.

Abstract: A navigation device stores road data in a storage part. The road data includes a consecutive connection of a plurality of links as a link queue, the plurality of links acquired by sectioning a road length into a plurality of pieces. The navigation device includes a guidance part that performs route search and guidance to a destination using the road data. The link queue includes a standard link for which, based on a sectioned link of a specific road stored in the storage part, information relating to the sectioned link is stored as road-related information in the storage part, and an invariance link for which the road-related information is not stored in the storage part if there is no difference in the road-related information compared to an adjacent link in the link queue. A navigation road data creating device is also provided.

Abstract: Navigation apparatuses, methods, and programs having conducted a search for an original driving route that goes through a plurality of destinations in a designated order and provided route guidance based on the original driving route, receive an input of a new destination. Upon receipt of the new destination, the apparatuses, methods, and programs designate an ordinal position of the new destination in terms of the designated order and receive an input of a destination change request. When the destination change request is received, the apparatuses, methods, and programs automatically delete one or more of the destinations in ordinal positions within the designated order that are before the ordinal position of the new destination, conduct a new search for a new driving route based on the new destination, and output the new driving route.

Abstract: Systems, methods, and programs for rotating font data may store font data and a plurality of conversion tables, each conversion table corresponding to a preset rotational angle. The systems, methods, and programs may select one of the conversion tables in accordance with a required angle and may rotating the font data based on the selected conversion table. The systems, methods, and programs may further store map data. The systems, methods, and programs may generate name designations of display objects included in the map data in accordance with an arrangement of the display objects on a map and may determine the required angle in accordance with the arrangement of the display objects on the map. The systems, methods, and programs may rotate characters of the generated name designations according to the required angle to create rotated name designations and may display the map data including the rotated name designations.