Hitachi, Ltd.

Hitachi Astemo Ltd.

Hitachi Solutions, Ltd.

Hitachi Automotive Systems, Ltd.

Hitachi Ulsi Engineering Corp.

Kiyohiro Obara

Yoshifumi Takamoto

Hiroaki Odawara

Atsushi Tanaka

Hideki Hayashi

Akinori Asahara

Masaaki Tanizaki

Takayuki Akiyama

Takashi Hashimoto

Takashi Oeda

Naoki Watanabe

Masafumi Nozawa

Yoshiko Yasuda

Noboru Morishita

Tatsuo Higuchi

Ryo Watanabe

Masahiro Yamada

Shigeo Takeuchi

Kishiko Maruyama

Hiroaki Fujii

Hisashi Takamatsu

Akiko Sato

Yoshinori Musha

Yoshiki Niwa

Junji Nakagoshi

Aki Tomita

Kohsei Matsumoto

Taturu Toba

Shinichi Shutoh

Takashi Onoyama

Noriyuki Yamasaki

Hiroko Ohi

Yoshinobu Sueno

Yasuhiro Inagaki

An electronic control device is mounted on a vehicle having a sensor, and includes: a storage unit that stores a control history in which a vehicle control condition and an actual number of measurement times of the vehicle control condition are associated with each other, the vehicle control condition being a condition for performing an arbitrary vehicle control operation for each position; a position specifying unit that specifies a position of the vehicle; a determination unit that determines a current sensor capability that is a current capability of the sensor; and a selection unit that selects, from the storage unit, the vehicle control condition having the largest actual number among the vehicle control conditions that have a position within a predetermined distance from the position specified by the position specifying unit and that can be determined by the current sensor capability.

Electronic control device and selection method

An update system includes an electronic control device that stores an autonomous driving logic and a server. The server includes: a storage unit storing personal characteristic data based on a user's driving and associated driving result data. In creating a first personal characteristic data associated with a first user ID and a first position, if first driving result data is present, the personal characteristic creating unit creates the first personal characteristic data using the first driving result data. If the first driving result data is not present, the personal characteristic creating unit creates the first personal characteristic data using the driving result data or the personal characteristic data associated with a user ID specified for the first user ID by the similarity specifying unit and the first position. The electronic control device includes a personal characteristic updating unit configured to update the autonomous driving logic using the first personal characteristic.

Update system and electronic control device

An information processing apparatus includes: a path planning unit that generates path data to a destination of a certain object; a filter setting unit that sets a filter representing an acquisition range to map data; and a map data acquisition unit that acquires, from the map data, data in a range set by the filter.

Information processing apparatus

Automotive navigation map data has a multilevel structure in which links have a relationship of association with one another among the minutest level and upper levels that are different from the minutest level in scale. A lowermost-level translation unit uses as original data items old and new RDB-form map data items of the minutest level to produce RDB-form difference data of the minutest level. An upper-level difference translation unit produces CSV-format data of a difference of each of the levels of the multilevel structure on the basis of CSV-format data, into which the difference data of the minutest level is translated, and information on the relationship of association among the links of the upper and lower levels in the automotive navigation map data, and integrates the difference data items as final map difference data for an automotive navigation map.

Map distribution server for automotive navigation systems, map data distribution system, and road difference data production method

It is provided a spatio-temporal data management system for managing time series data associated with a spatio-temporal region, comprising: a processor for executing a program; a memory for storing the program; and a storage device for storing the time series data. The processor segments the spatio-temporal region in time and space to generate a plurality of spatio-temporal segments, assigns, in consideration of temporal and spatial proximity of the plurality of spatio-temporal segments, identifiers for uniquely identifying the plurality of spatio-temporal segments, each of the identifiers being expressed with a one-dimensional integer value; and determines an arrangement of the time series data so that pieces of data of spatio-temporal segments that are close in the assigned identifiers are arranged close on the storage device.

Spatio-temporal data management system, spatio-temporal data management method, and machine-readable storage medium thereof

A map data distribution server that is connected to a network and distributes map data via the network is provided. The map data distribution server holds first map data and second map data that is of a newer version than the first map data and holds a plurality of update data including an instruction to update the first map data for each of partitions of a given size on a map. The map data distribution server decides whether a predetermined condition is fulfilled upon receiving an update request to update the first map data in a first partition out of the partitions to the second map data from a terminal communicating with the map data distribution server via the network, selects one of the plurality of update data relevant to the first partition, based on the result of the decision, and transmits the selected update data to the terminal.

Map data distribution server, map data distribution system, and map data distribution method

In the situation where an amount of information on a user action history is small, information which is unexpected and interesting to a user cannot be presented with high accuracy. In order to solve this problem, a general degree of unexpectedness of an item, which does not depend on the user action history, and a degree of preference of the user to the item, which is based on the user action history, are calculated in an integrated manner, whereby the information which is unexpected and interesting to the user is recommended.

Using a degree-of-unexpectedness to provide unexpected recommendations

Information in which a user is interested when viewing a program and a situation and a behavior of the user are to be associated with each other. A keyword dictionary defining program information and a user behavior model are provided, and thereby the scene interesting the user is registered and stored, and information on the interesting scene is presented in a situation optimal to the user.

Information presentation apparatus and mobile terminal

There is disclosed a map data delivering system for providing consistent road network information from supplement map information and map update information. The map data delivering system includes a navigation terminal and a map distribution server. The map distribution server includes a management data storage unit which stores an update element representing differential update data representing a difference of the map data, and update element management data containing an update element ID for identifying the update element, an update date before the updating of the map data, and a dependent update element ID for storing dependency on the updating of the map data; an update management data selector unit which selects the update element management data having the dependent update element ID among the update element management data having the located area overlapped with the map area of the map distribution request from the navigation terminal and the corresponding update element management data; and a network I/F unit which performs communication with the navigation terminal.

Map data delivering device, communication terminal, and map delivering method

A document retrieval is performed with similarities between documents in numeric data taken into consideration. To this end, generated is a set E of intervals in which each element of a set D of numeric values representing a feature A is included in any one of the intervals. Each numeric value in each document is indexed by assigning, with 1, an interval including an element x of the set D, and with 0, an interval without the element x. Each document data including numeric values is indexed by indexing its text part with term frequencies, and by indexing its numeric-value part with the above-described numeric value indexing scheme. By use of indices thus created for each of the document data, similarities between the document data are calculated using a vector space model or a probability model, and the document data are presented in order of similarity.

Document retrieval system and document retrieval method

A method is provided for sharing a file among a plurality of hosts; the file is stored in a disk device shared among the plurality of hosts, each of which uses an operating system (OS) having a different format. In general, a management system of a file is different depending on the OS. Therefore, because a stored location of the file is unknown, it is not possible to view the file, which is managed by a management system of a certain OS, from the other OSs. Therefore, a method is provided whereby stored-location information of the file, which is managed by a management system of a first OS, is converted into stored-location information that is managed by a second OS format. Then, the second OS reads the file on the basis of the stored-location information that has been converted.

Method and storage system that enable sharing files among multiple servers

A virtual private volume control system, wherein in a data frame of a command issued from an OS, an ID number for identifying the OS is attached to the command; inside the disk apparatus, exclusion/priority processing is controlled, based on the ID number; thereby enhancing the transaction processing performance of a complex of servers and the disk apparatus as a whole.

Storage system controlling exclusion/priority for I/O access

In prefetch caching program implementation for hiding the delay of data access via a network, the operation of the existing applications with the prefetch program must branch, depending on whether data to access is on the cache and it is necessary to add branch processing to the data access process. In the disclosed invention, means for caching data on a device driver level in a client system and means for storing cached data into an external storage unit are provided. Cache control is accomplished by means for sending cache control commands such as 'flush the cache' to the client from the outside of the client and means for executing received cache control commands within the client. Data access delay over a network can be hidden by caching.

Method and system for caching network data

An online data migration method is provided for transferring data from a computer and an existing storage system using the conventional interface such as SCSI to a new storage system using SAN. The present method comprises the steps of disconnecting the connection between the computer and the first storage system with first interface protocol, connecting the computer to a switch connected to a second storage system with a second interface protocol through first protocol converter having protocol converting facility, connecting the switch to the first storage system through second protocol converter, and migrating data in the first storage system into the second storage system via the switch.

Data migration method, protocol converter and switching apparatus using it

A data transforming method and apparatus of a database management system for transforming data within a disk storage device between database data formats, thereby reducing the system load, when converting data formats between database management systems. The invention includes a skeleton program for instructing data transformation and a communication program being provided on a host computer, and a data transformation program for transforming data formats and a communication program being provided on a disk storage. A request sent from the skeleton program via the communication programs to the data transformation program, causes the data format transformation to occur within the disk storage.

Growing community of inventors

Hachioji, Japan

Kiyohiro Obara