Patent application number | Description | Published |
20120084001 | COMMUNICATION SYSTEM AND MOVABLE TERMINAL - A movable terminal stores previously a travel time schedule in a regular travel state of a public transportation. The movable terminal executes a route retrieval from candidates containing route sections traveled by using the public transportation and route sections traveled by using different transportation (i.e., foot, vehicle) other than the public transportation. As a result of the route retrieval, when it is determined that the route using the public transportation is more suitable, a request for a multi-modal retrieval based on actual present travel state of the public transportation is transmitted to a center. A center route received thereafter from the center is recorded as a guidance route used for executing route guidance. | 04-05-2012 |
20130030695 | MAP DIFFERENCE DATA DISTRIBUTION SYSTEM, MAP DIFFERENCE DATA DISTRIBUTION APPARATUS, AND MAP DIFFERENCE DATA DISTRIBUTION METHOD - An in-vehicle navigation apparatus transmits a present position, a destination, and a version number of in-vehicle map data stored in an in-vehicle map storage portion to a map difference data distribution apparatus. The map difference data distribution apparatus calculates a route from the present position and destination received from the in-vehicle navigation apparatus, compares a version number of map data stored in a center map storage portion with the received version number of the in-vehicle map data to prepare map difference data of map elements contained in the route, and distributes the prepared map difference data to the in-vehicle navigation apparatus. | 01-31-2013 |
20130031049 | MAP DIFFERENCE DATA GENERATION APPARATUS AND MAP DIFFERENCE DATA GENERATION METHOD - A map difference data generation apparatus includes: most recent and supplementary map data storage devices storing primary most recent and supplementary map data, respectively; a map update reflection device generating secondly most recent and supplementary map data according to an update of a first link, and generating tertiary most recent and supplementary map data according to an update of a second link; a determination device determining a dependency relationship between the update of the first and second links, in accordance with results of searching a route in the tertiary most recent and supplementary map data between first and second nodes, which are both ends of the second link; and a map difference data generation device generating map difference data, which defines a combination of the update of the first and second links, when the update of the first and second links have the dependency relationship. | 01-31-2013 |
20130031132 | APPARATUS AND METHOD OF PRODUCING MAP DIFFERENTIAL DATA - An apparatus includes a map data storage device, a map update device, a determination device, and a data production device. The storage device stores map data. The update device reflects a first map update to a first version of the map data to produce a second version of the map data when the first map update occurs. The update device reflects a second map update to the second version of the map data to produce a third version of the map data when the second map update occurs after the first map update. The determination device determines whether the first and second map updates depend on each other. The production device produces map differential data from the first and second map updates when the determination device determines that the first and second map updates depend on each other. | 01-31-2013 |
20150052131 | INFORMATION PROVISION SYSTEM - An information provision system includes: a vehicular mobile terminal; and a server that accesses a registration database and provides a content to the vehicular mobile terminal. The registration database registers a position-interrelated content provision web page that: specifies the content to be provided according to an input condition; and defines a position-interrelated content to be provided when the vehicular mobile terminal satisfies a trigger condition. The system further includes: a position-interrelated content search device that searches for the position-interrelated content corresponding to a same trigger condition as a moving state of the vehicular mobile terminal when the vehicular mobile terminal accesses the position-interrelated content provision web page and the position-interrelated content provision web page defines the position-interrelated content for the vehicular mobile terminal; and an information provision device that provides a user of the vehicular mobile terminal with a searched position-interrelated content when the trigger condition is satisfied. | 02-19-2015 |
20150094954 | INFORMATION PROCESSING SYSTEM - A navigation apparatus includes hierarchically road map data having third-, second-, and first-layer data respectively representing a high, intermediate, and low road rank. The layer data are contiguously disposed in a storage portion in the order of the road ranks. The first- and second-layer data include area data about individual zones into which a region corresponding to the third-layer data is divided. According to a read request designating a bunch of area data, a cached portion of the designated bunch of area data is obtained from a cache area. The remaining portion is obtained from the storage portion such that an address range of the storage portion from the start point to the end point of the remaining portion is collectively read while area data not designated by the read request but positioned between the remaining portion are additionally read. | 04-02-2015 |
20150247732 | CENTER DEVICE, PROGRAM, MAP INFORMATION TRANSMISSION METHOD, AND NAVIGATION DEVICE - Provided is a center device that enables a navigation device to conduct guidance according to a route on the basis of the latest map information, without imposing a heavy load on a communication network. The center device calculates a guide route as a center route on the basis of the latest of the map information and information received from the navigation device, specifies the map information that is available to the navigation device, and calculates a guide route as a navigation route on the basis of the specified map information and the information received from the navigation device. On the basis of the center route and the navigation route, the center device specifies, from the map information, different map information necessary for the navigation device to give guidance on the center route, and transmits the specified map information to the navigation device. | 09-03-2015 |
20160034495 | MAP DIFFERENCE DATA DISTRIBUTION SYSTEM, MAP DIFFERENCE DATA DISTRIBUTION DEVICE, MAP DATA MAINTAINING DEVICE, UPDATE MANAGEMENT SERVER, AND MAP DIFFERENCE EXTRACTION SERVER - A map difference data distribution system includes a map difference data distribution device including a map difference data storage unit storing map difference data items and a distribution unit distributing map difference data items, and a map data maintaining device including update unit updating map data based on map difference data items. The map difference data storage unit traces the updated data items and data items having dependent relationships with the updated data items back to the different version updates, and stores the data items as map difference data items. The map difference data distribution device includes a non-updated data extraction unit extracting non-updated data items from the map data maintaining device, a grouping unit grouping the data items in dependent relationships, and a distribution data generation unit generating distribution data by arranging grouped records of non-updated data items from higher priority of map element under specified communication traffic volume. | 02-04-2016 |