Fujitsu Corporation

Subaru Corporation

Autoliv Development Ab

Mitsubishi Denki Kabushiki Kaisha

Fujitsu Semiconductor Limited

Spansion Llc.

Panasonic Holdings Corporation

Osamu Takahashi

Takeshi Kimura

Yoshihiko Matsuo

Noriyuki Tsukada

Eiji Nishimori

Masayuki Honma

Akihiro Okada

Hidehiko Sugimoto

Toshiaki Kobayashi

Takateru Sawada

Kiyotaka Shikata

Hideki Tsuruse

Yasuyuki Sohara

Masahito Sekine

Shogo Maenaka

Akira Saitou

Isao Fudemoto

Takao Yagi

Shunichiro Shinmen

Seigou Tsukada

Shun Suzuki

Ryosuke Kubo

Kenji Makino

Kota Tatsumi

Syunsuke Kanagami

Naoya Neriugawa

A vehicle driving system to be provided in a vehicle includes a touch sensor and a control unit. The touch sensor is to be provided in the steering operation device and configured to measure a fluctuation in electrostatic capacitance. The control unit determines, based on information from the touch sensor, whether a driver of the vehicle is in a steering-holding state or in a non-steering-holding state. After a detection of a first fluctuation that is a fluctuation in the electrostatic capacitance occurring before a malfunction of the touch sensor, the control unit determines that the driver is in the non-steering-holding state even if the information from the touch sensor to the control unit indicates that the driver is in the steering-holding state.

Vehicle driving system

A steering wheel is provided that is able to prevent damage to a layer adjacent to an outer surface layer due to an external force applied when a joined portion between outer surface layer material parts is finished. In a steering wheel comprising a rim portion having a core metal and a covering portioncovering the core metal, and a mat materialprovided between an outer surface materialand the covering portionof the rim portion and having a conductive portionon a part facing the outer surface material, and the outer surface materialhas a joined portionformed in a direction intersecting a circumferential direction of the rim portion, the covering portionis provided with a groovein which the joined portionand a part of the mat materialare housed, and between the outer surface materialand the conductive portion, a sliding memberis interposed at least in a vicinity of the joined portion

Steering wheel

A DC-DC converter control circuit includes: a slope signal generation circuit that generates a reference voltage by superimposing a slope voltage onto a standard voltage; a comparator that performs comparison of the reference voltage with an output voltage and generates a signal according to a result of the comparison; an oscillator that generates a pulse signal with a substantially constant cycle; and a control signal generation circuit that generates a control signal that turns on a switch based on a comparator output signal and turns off the switch based on the pulse signal.

Control circuit for DC-DC converter, DC-DC converter, and method for controlling DC-DC converter

A power supply includes a first switch and a second switch coupled in series between an input voltage terminal to which an input voltage is applied and a reference voltage terminal to which a reference voltage lower than the input voltage is applied, an inductor disposed between a junction coupling the first and second switches and an output terminal from which an output voltage is output, and a controller controlling the first and second switches to be alternately switched at a given switching cycle depending on an error of the output voltage with respect to a target voltage, wherein the controller changes the switching cycle from a first cycle to a second cycle longer than the first cycle, depending on a voltage at the junction when the second switch is in a turned-on state.

Power supply and power control device

A file handling device designed to improve the efficiency of file selection in a GUI environment. When a menu is opened with a file, a folder or an icon selected in a file menu, a file selection screen, a folder tree menu or a file browser or with an icon on the desktop selected, file menu item creation/display unit, file selection screen item creation/display means, folder tree item creation/display unit and file/icon menu item creation/display unit read out data set by means of environment setting unit and stored in settings storing unit, as well as history data stored in history storing unit, and additionally display the read data in the menu or the like. At the time of drag-and-drop operation, drop list window creation/display unit reads out the set data and the history data and displays a list of the read data in a drop list window.

File handling device, and a recording medium storing a file handling program

Disclosed are an exchange which performs call connection control for subscribers in a plurality of areas having different toll numbers, and a method of controlling connection of calls in this exchange. A telephone number translation table is created in accordance with a telephone number structure comprising an internal toll number and internal local office numbers, wherein the internal toll number is a string of numerals shared by toll numbers in the plurality of areas, and the internal local office numbers are numbers obtained by adding a number, which is not shared by the toll numbers in the plurality of areas, onto the beginning of local office numbers that follow the unshared number. The exchange performs switching service control using the telephone number translation table.

Call connection control method in exchange

A DC-DC converter comprises a switching element having a rise time t.sub.on and a fall time t.sub.off ; a control device for controlling the switching operation of the switching element; a transformer having a primary winding and a secondary winding, the primary winding being connected to a DC power source through the switching element, and having an open inductance L.sub.M ; an inductance coil having an inductance L connected to the secondary winding of the transformer; and a rectifying device for rectifying the output from the secondary winding of the transformer; assuming that the voltage applied to the primary winding of the transformer is E, the load current flowing through the transformer is I.sub.D, and the sum of the stray capacitance of the switching element and the distributed capacity of the windings of the transformer is C1, the following relational expressions being established:

Low-switching loss DC-DC converter

An optical communication system including repeaters which return a preamble signal to the receive line as soon as it detects a carrier on the transmit line of a single line optical bus. Therefore, transmission equipment can confirm data transmission quickly because the time delay between data transmission and its confirmation is decreased. The repeater also monitors a time delay associated with the return through a return loop of the transmitted data, and produces and transmits a failure signal when the time delay is longer than a predetermined value. The system also includes an optical transceiver connected between the optical bus and the transmission equipment which converts optical signals into electrical signals and visa versa and also adds the preamble signal to the front of data to be transmitted.

Optical communication system

In a packet transmission system in which a plurality of kinds of telephone signals are packetized and transmitted, when a voice signal call is originated, a real channel is established for the voice signal call prior to a signal call other than a voice signal call, so that a transmission channel is occupied in each frame. When the voice signal call is over, the transmission channel allocated to the voice signal call, is changed to a condition in which another call can be allocated thereto. The system is useful for effective utilization of a packet communication network, without impairing the transmission quality requirement for a voice signal call.

Packet transmission system

Growing community of inventors

Yokohama, Japan

Osamu Takahashi