Abstract: A server includes a position estimation section for estimating the current position of a client apparatus based on the already acquired position information when the server cannot acquire position information from the client apparatus and the server requests the client apparatus to transmit position information in response to a search instruction from an information terminal.

Abstract: A server apparatus divides map data into a plurality of block data to add identification information to each block data, and sends each block data to a terminal apparatus. The terminal apparatus identifies data for each block data sent from the server apparatus and, when uncompleted block data is detected, sends retransmission request information, which requests only the uncompleted block data to be sent to the terminal apparatus, to the server apparatus.

Abstract: In the information communication system wherein communication is performed between a server and a terminal apparatus via the Internet, the system includes an access server AS for recognizing an access point that has been used for a communication between the server and the terminal apparatus, and a www server that transmits information indicating the recognized access point with respect to the terminal apparatus, and the terminal apparatus includes a processing part for executing a control according to the information indicating the access point which has been transmitted on.

Abstract: A communication navigation system is provided with a communication center apparatus (3) and a communication navigation terminal (5), which perform two-way communication on a communication network (1, 2). The communication center apparatus is provided with: a search device (74) for searching for an optimum route with respect to the request of route search from the communication navigation terminal on the basis of information for route search and a communication device (73) for wirelessly transmitting coordinates information at a plurality of positions on this optimum route. The communication navigation terminal is provided with a communication device (38) for receiving the coordinates information and a display processing device (43) for displaying the optimum route on the basis of this received coordinates information.

Abstract: A communication type navigation apparatus can communicate with a server device via a communication path. The navigation apparatus requests route search, and the server device executes route search to produce route information of a searched route. Then, the meshes necessary to travel along the searched route are determined, and the navigation apparatus obtains necessary mesh data from the server device. The navigation apparatus may request newer mesh data to the server device based on the updating information of the mesh data. By appropriately determining the mesh data to be and not to be downloaded from the server device, the communication cost necessary for obtaining the mesh data can be saved.

Abstract: An information distributing machine distributes only information comparatively related to a user. The information distributing machine has a memory for storing a moving path of every user. The information distributing machine also has a distribution information entry unit for accepting distribution information including position information. A controller determines whether there is particular relationship between the moving path stored in the memory and the position information included in the distribution information. The information distribution machine transmits the distribution information to a user when there is the relationship between the moving path of that user and the position information.

Abstract: A customer search device is provided, that is able to conduct a search taking into account a customer's range of activities. The customer search device includes a storage unit for storing each customer's route of travel. The customer search device also includes a search criteria entry unit for receiving search criteria, including location information. A determination unit determines whether or not there is an association between the route of travel stored in the storage unit and the location information included in the search criteria. An output unit creates and outputs list data of customers whose route of travel has an association with the location information included in the search criteria, on the basis of a determination made by the determination unit.

Abstract: A man navigation system comprises a map display device for retrieving map data on a required area from a database and displaying a map image based on the retrieved map data, a point specifying device for optionally specifying a first point and a second point in the map image displayed by the map display device, a condition setting device for setting a condition for route setting, a route setting device for setting a route connecting the first point and the second point in the map image specified by the point specifying device based on the condition set by the condition setting device, and a route display device for displaying the route set by the route setting device on the map image displayed by the map display device.

Abstract: A map information providing method, a map information providing system, and a recording medium on which the method programed is recorded is provided, wherein a client terminal unit 3 including a display monitor accesses a map information site (a Web-server 1) through a communication line (the Internet 2). An institution or its related information is inputted, and the Web-server 1 calculates azimuth information consisting of a direction and a distance to the institution from an arbitrary position around a present position, decides a surrounding area to be displayed, and transmits a map of the surrounding area along with the azimuth information to the terminal unit to display them.

Abstract: A position of a vehicle is detected by receiving a position detection signal transmitted from the travelling vehicle. It is sensed whether or not the vehicle passes a starting node of a required link on a road network, and when the vehicle passes the starting node, the passing time is stored. Then, it is also sensed whether or not the vehicle passes an end node of the required link on the road network, and when the vehicle passes the end node, the passing time is stored. Then, a travel time for the link is calculated from the passing times of passing the respective starting and end nodes of the link.

Abstract: In a map database site 1, a road network data is constructed in a road network database 110. A locus data is acquired every time by a location data receiving section 111. The road network data and the locus data are compared/collated with each other. The map information containing road information is updated provisionally and decisively. In this configuration, a change in a road situation and foundation of a new road can be dealt with and maintenance of the map data can be easily made.

Abstract: In a system and a method for incorporating ad information into e-mails while they are being exchanged, whether area information b is contained in an e-mail M transmitted from a terminal T1 or not is detected. When the area information b is contained, position information indicating the display range of the area information is retrieved. Based on the position information, ad information positioned in the display range of the area information is retrieved. Then ad data c contained in the retrieved ad information is inserted into the e-mail M.

Abstract: An advertisement site (S3) displaying advertisements on a map image (M) displayed on a user terminal (T) includes a advertisement server (S3a) for displaying a route setting and advertisements situated along the set route (R) on the map image (M), a route database (3Sb) storing road data on a map required for setting a route in the advertisement server (3Sa), and an advertisement database (S3c) storing registered advertisement data. The advertisement server (3Sa) sets a route based on the road data stored in the route database (3Sb), and reads out advertisements situated along the set route from the advertisement database (3Sc) to display them on the user terminal (T).

Abstract: There are provided a CPU (11A) and an ignition key switch (17) detecting that a vehicle stops, and a transmission circuit (11C) and a transmitter (11D) for transmitting a map-image data for displaying a map image on a display (14) of a car navigation system, to a portable terminal (T) when the CPU (11A) and the ignition key switch (17) detects that the vehicle stops.