Aisin Aw Co., Ltd.

Toyota Jidosha Kabushiki Kaisha

Aisin Seiki Kabushiki Kaisha

Aisin Corporation

Toyoji Hiyokawa

Mitsuhiro Nimura

Motohiro Nakamura

Kazunori Watanabe

Kazuteru Maekawa

Daisuke Tanizaki

Naokazu Ozaki

Junzo Matsuba

Akimasa Nanba

Hiroyuki Kanemitsu

Hiroyuki Tashiro

Takeshi Yanagikubo

Tatsuya Kato

Koichi Iwatsuki

Yasunobu Ito

Atsushi Watanabe

Kenji Nagase

Kyomi Morimoto

Toru Ito

Hiroshi Kishi

Hiroyoshi Masuda

Yu Tanaka

Shigekazu Ohara

Koji Ogawa

Shinichi Katoh

Tomofumi Shibata

Kei Hiroo

Masahiro Suetsugu

Tominori Iwata

Tomoko Arita

Masahiro Takahashi

Masaya Yamaguchi

Masahiro Hyakusawa

Atsushi Yamazaki

Yusuke Takenaka

Kazuyuki Hirakawa

Tatsumi Sakamoto

Satoru Aito

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.

Server device, communication terminal, route retrieval system, and computer program

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.

Vehicle control device

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.

Communication terminal, server device, route retrieval system, and computer program

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.

Route search system, route search method, and computer program

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.

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.

Map updating system and map updating program using dynamic cache memory

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.

Navigation device and navigation road data creating device

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. When an added destination request is received, the apparatuses, methods, and programs conduct a search for the new driving route including the new destination, without deleting destinations in ordinal positions within the designated order that are before the ordinal position of the new destination.

Navigation apparatuses, methods, and programs

An image display device is provided that includes an information storage device in which names of destinations are stored; name obtaining unit for obtaining names from the information storage device on the basis of an input device and its operation; a display for displaying character strings on a menu screen; a name display unit for displaying names obtained by the name obtaining unit in respective rows in a plurality of areas on the menu screen; and a display change unit for displaying character strings of names in a plurality of rows upon determining whether character strings of names to be displayed cannot fit in the display area. When the operator operates the input device, names are obtained from the information storage device and if character strings of names to be displayed cannot fit in the display areas, the character strings of the names are displayed in a plurality of rows.

Image display device, method of image display, and storage medium for storing image display programs

A system for executing guidance to a destination properly even if the destination is connected to a non-guidance target road, such as a small street. The system has a judgment device for determining whether a road connecting to a destination on the searched route is a non-guidance target road, a controller for determining a guidance terminating point on the basis of the determinative result of the judgment device, wherein if a road connecting to a destination is a non-guidance target road as determined by the judgment device, then the last intersection point of the guidance target road to the non-guidance target road or a road end closest to the departure side of the non-guidance target road is determined as a guidance terminating point.

Navigation system and a memory medium

A vehicle navigation system is presented for performing guidance along route which produces an intersection image upon controlling a drawing area of the intersection image on the basis of information and route regarding the intersection existing on the route which requires guidance. The navigation system display control unit determines the drawing area of the intersection image on the basis of map information stored in a memory, route information stored in a route memory and information concerning an intersection requiring route information and guidance prior to producing the intersection image. In addition, the display control unit judges whether the intersection which requires route guidance is larger than the predetermined limited scale rate, and if the intersection which requires guidance is larger than the predetermined image limit, the display control unit controls a display area by reducing the scale rate so as to be able to display the entire intersection or otherwise controls the display area so as to be able to display all routes within its intersection.

Vehicle navigation system and method

Even when the present position does not exist on a guide road after deviation from an established guide route, a guide road is identified and a more advantageous route is identified. Furthermore, only a minimum amount of required data are displayed on the map picture. The searching again is executed by taking the direction of progress of the car into consideration. Street names of the roads are displayed on the guide map, enabling a guide route to be easily recognized. A particular area is specified by a postal code number or by a telephone number, and the streets or the facilities in the specified area are displayed. This makes it easier to search the destination.

Navigation device

A vehicle navigation system is made to generate bitmap image data necessary for navigation, including map data, road data, font data, etc., and then to transmit a pattern (font) image and an enlarged intersection image to a display.

Vehicle navigation system with pixel transmission to display

The invention provides a vehicular navigation system which is capable of lowering the cost of detecting road data stored in order in the outgoing trip, using the road data as resources in the return trip, and determining a route meeting the requirements of the user. According to a vehicular navigation system of the invention, when a vehicle is traveling on a road having bidirectional data along an outgoing route from a starting point to a destination, a road on the opposite side of the road on which the vehicle is traveling is stored as return route data with a lowered cost of route determination. Such a storing operation is performed for each node passed by the vehicle. The return route data thus stored are used to determine a return route.

Vehicular navigation system

The present invention provides a navigation system for guiding a driver along an optimum route by comparing a route with preference on the traveling direction of a vehicle with a route with no preference on the traveling direction thereof when the driver is guided from the current position thereof up to a destination. To search for a route, a first route with preference on the traveling direction of a vehicle is calculated (1) and then, a second route with no preference on the traveling direction thereof is calculated (2). An appropriate route is selected from found routes according to a predetermined setting condition (3) and displayed on screen. The setting condition includes comparison of distances of respective routes and time lengths required for traveling thereon, ease of traveling, width and type of roads, scenery and the like. In a case where distances of the respective routes, for example, are compared with each other, if the distance of the first route is longer than the second route by at least a predetermined value, the second route is displayed, and if the first route is not longer than the second route by at least the predetermined value, the first route is displayed.

Growing community of inventors

Okazaki, Japan

Toyoji Hiyokawa