Toyota Jidosha Kabushiki Kaisha

Denso Corporation

Aisin Aw Co., Ltd.

Denso Wave Corporation

Zenrin Co., Ltd.

Panasonic Corporation

Toyota Boshoku Kabushiki Kaisha

Aisin Corporation

Kazunori Watanabe

Yuji Sato

Kaoru Ishida

Motohiro Nakamura

Daisuke Tanizaki

Tsuneo Maebara

Kenji Nagase

Kazuteru Maekawa

Toyoji Hiyokawa

Hiroyuki Tashiro

Xin Jin

Tomoyuki Zaitsu

Junichi Fukuta

Takayuki Watanabe

Tomotaka Suzuki

Sadahiro Koshiba

Teruhide Hayashida

Yasutaka Atarashi

Kenta Onishi

Toshio Inoguchi

Tatsuya Kato

Kazuya Ueda

Shunichi Mizobe

Tomoki Kodan

Hiroyoshi Masuda

Yoshiyuki Hamanaka

Yoshinori Hayashi

Takahisa Ozaki

Yasuo Ibuki

Seiji Takahata

Kimiyoshi Sawai

Yosuke Asako

Yohei Kondo

Tetsuya Dewa

Takafumi Ohba

Shingo Aoyama

Koji Ogawa

Koichi Iwatsuki

Kei Hiroo

Hiroaki Hirano

Tetsuo Kumagai

Yuka Matsuo

Shinji Kachi

Tsuyoshi Iwata

Tomoyuki Muraho

Jyunji Miyachi

Nobuhide Kuroda

Junji Miyachi

Mikio Hanabusa

Noriyuki Takagi

Yasunari Tanimura

Tomoko Arita

Katsuya Masuda

Yoshitaka Nishino

Tominori Iwata

Takeshi Hashimoto

Masamiki Andoh

Naoyuki Hiramoto

Tooru Yamazaki

Atsushi Tanabe

Takamitsu Inagaki

Yumeki Teraoka

Hikaru Nagasaka

Yukiko Katsuki

Naoki Ushijima

Shinji Takayama

Junichi Fukita

Toru Imai

Satoru Yamada

A drive circuit for a switching element includes: a first power supply; a second power supply; a power supply switching unit that switches the first and second power supplies for applying the drive voltage based on a drive command; and an output switching unit outputting an output voltage switching signal to the second power supply that the output voltage of the second power supply becomes zero in a part of a drive period of the switching element including at least a part of an on-drive period, and the output voltage becomes a predetermined voltage other than zero in a remaining part of the drive period including at least a part of an off-drive period.

Drive circuit

A drive circuit drives driven switches connected in parallel with one another. The driven switches each include first, second main, and main control terminals. When a potential difference of the main control terminal with respect to the second main terminal becomes greater than or equal to a threshold voltage, the flow of current between the first and second main terminals is permitted. At least two driven switches have different threshold voltages. The drive circuit includes, for each driven switch, an electrical path electrically connecting the second main terminal or a negative voltage supply, which is at a negative voltage lower than the potential of the second main terminal, to the main control terminal. The impedance of each of the electrical paths is set so the potential difference increased by electric charge flowing into the electrical path through a parasitic capacitance of the driven switch becomes less than the threshold voltage.

Drive circuit for driven switches

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

Movement guidance information for performing traveling guidance for a vehicle is requested to a guidance information delivering server device based on an area update table and an area identification table for managing an update state of map information in a communication terminal, and traveling guidance for the vehicle is performed based on the movement guidance information delivered from the guidance information delivering server device in response to the request.

Communication terminal, movement guidance system, and non-transitory computer-readable recording medium storing computer program

A storage includes a first area in which an own device program is stored and a second area in which an other device program is stored at factory shipment. A data processor executes data processing with the other device based on the own device program. A version getter gets the version of the other device program stored in the other device. When the version of the other device program got from the other device satisfies a predetermined condition, a program transmitter transmits the other device program stored in the second area to the other device to cause the other device to update the other device program stored in the other device. A program updater temporarily stores an own device update program input from outside in the second area in place of the other device program and updates the own device program stored in the first area.

Electronic device, program update method, and non-transitory recording medium

A communication terminal is connected to a server and provides movement guidance for a mobile unit based on guidance information delivered from the server. The terminal requests the server for update information for updating area identification information that identifies a section corresponding to an update target area and a section not corresponding to the update target area on a section-by-section basis. The update target area is an area whose terminal-side map information included in the communication terminal is an older version. The terminal updates the area identification information based on the update information transmitted from the server, requests the server for guidance information for providing movement guidance for the mobile unit based on the updated area identification information, and provides the movement guidance for the mobile unit based on the guidance information delivered from the server.

Communication terminal, server device, movement guidance system, and computer program

There is provided a technique for reducing the possibility that a user loses track of how a road, etc., grasped by him/her have been changed on a map. A navigation system includes: a map display part that displays a map on a display in any of a plurality of display modes, the map including a current location; a moving image display part that displays, when the display mode changes, a moving image in which the map is rotated and the display mode before being changed gradually changes to a changed display mode, on the display; and a speed-of-change control part that increases a speed of change in the display mode after start of the change in the display mode.

Navigation system and navigation program

A communication terminal is connected to a server and transmits a route search request for a destination to the server and obtains a route searched for from the server according to the request. When setting a destination or transmitting the route search request to the server, the terminal requests the server for guidance information targeted for at least an update target area around a current location among update target areas. The guidance information is for providing movement guidance for a mobile unit, and the update target areas are areas whose terminal-side map information included in the terminal is an older version of map information relative to the server's device-side map information. The terminal receives the guidance information transmitted from the server according to the request for the guidance information, and provides the movement guidance for the mobile unit using a route set on the terminal and the received guidance information.

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

Movement guidance devices and programs provide movement guidance for a mobile unit using guidance information for providing movement guidance for the mobile unit. The guidance information is delivered from a server device. The devices and programs store the guidance information delivered from the server device in a memory. The stored guidance information is area-section-by-area-section guidance information. The devices and programs set a remaining priority for the stored guidance information on a per area section basis of map information and delete, from the memory, guidance information for an area section with a low remaining priority on a priority basis rather than guidance information for an area section with a high remaining priority among the stored guidance information.

Movement guidance device and computer program

There is provided a technique for reducing the frequency of a user feeling annoyed. A map display system includes: a map display part that displays a map on a display; an icon display control part that selects a type of icons to be displayed from among a plurality of types based on a number of the icons displayed on the map, and displays ground objects by the icons of the selected type on the map; and an icon selection control part that allows or prohibits a change in the type of icons selected by the icon display control part, and prohibits, when scrolling of the map is performed, a change in the type of icons before and after the scrolling.

Map display system and map display program

There is provided a technique for arranging characters along a road to improve appearance and readability. A map display system includes a temporarily arranging part that obtains directions of a plurality of characters for when the plurality of characters are temporarily arranged along a road in a direction of the road, the direction of the road being a reference direction; and an arranging part that arranges, when a difference between directions of consecutive characters is greater than or equal to a threshold value, the consecutive characters so as to reduce the difference, the consecutive characters being two consecutive characters in the direction of the road, and arranges, when the difference is less than the threshold value, the consecutive characters in a temporary arrangement position.

Provided is a map display system including: a destination acquiring section which acquires a destination specified on a map displayed on the display section; a position acquiring section which acquires a starting position of the map when the destination is specified and an ending position of the map which allows a travel route to be displayed; and a display control section which displays so that the position on the display section gradually moves from the starting position to the ending position, acquires a starting scale of the map when the destination is specified and an ending scale of the map which allows display of the entire proposed travel route, and gradually changes a scale of the map displayed from the starting scale to the ending scale during movement, in which the position of the map displayed gradually moves from the starting position to the ending position.

In a drive apparatus, a transmission unit mounted to a first region stops transmission of a pulse signal from a physical-quantity transmission terminal. The transmission unit transmits, from the failure information transmission terminal, a first signal indicative of an occurrence of the failure associated with the target switch when it is determined that the failure associated with the target switch has occurred, and transmits, from the physical-quantity transmission terminal, a second signal indicative of a content of the failure associated with the target switch. A controller mounted to a second region electrically isolated from the first region detects, based on the pulse signal from the physical-quantity transmission terminal, the physical quantity upon no input of the first signal to the controller. The controller identifies, based on the second signal transmitted from the physical-quantity transmission terminal, the content of the failure upon the first signal being input to the controller.

Drive apparatus for switch

A route information transmission system, method and medium that acquire information for transferring a first travel route, on which a terminal device provides guidance, to an in-vehicle device as a second travel route on the basis of information pertaining to the first travel route, and transmit the acquired information.

Route information transmission system, route information transmission device, route information terminal, route information transmission method, and route information transmission program

Growing community of inventors

Okazaki, Japan

Kazunori Watanabe