Hitachi, Ltd.

Other

Hitachi Microcomputer Engineering, Ltd.

Renesas Technology Corp.

Hitachi Car Engineering Co., Ltd.

Hitachi Engineering Co., Ltd.

Fumio Murabayashi

Tatsumi Yamauchi

Hiromichi Yamada

Yoji Nishio

Takashi Hotta

Takashi Sase

Mutsumi Kikuchi

Nobuyasu Kanekawa

Kohei Sakurai

Shoichi Kotoku

Masahiro Matsumoto

Keiji Hanzawa

Kazuo Kato

Atsuo Watanabe

Kozaburo Kurita

Masatsugu Amishiro

Kenji Tabuchi

Katsunori Koike

Hideo Hara

Kayoko Nemoto

Kosaku Hirose

Yutaka Kobayashi

Masahiro Iwamura

Mitsuru Watabe

Kotaro Shimamura

Atsushi Miyazaki

Tetsuya Shimomura

Toshio Hayashibara

Akihiko Kanouda

Akira Uragami

Yoshikazu Kiyoshige

Akiyoshi Osumi

Manabu Shibata

Noriyasu Ido

Fumiaki Matsuzaki

Takahiro Nishiyama

Yoshitatsu Kojima

Noboru Akiyama

Koji Tateno

Hiroyuki Shoji

Hideo Sawamoto

Fumikazu Takahashi

Yasuaki Norimatsu

Eiki Kamada

Kazuhisa Miyamoto

Akio Inada

Hiroyasu Sukesako

Kazuharu Kuchimachi

Haruki Komatsu

A first converter circuit converts a state signal, whose level is constant or slowly varies during a predetermine period of time, into a pulse signal to allow the signal to propagate across an electrically insulating area. A second converter circuit converts the pulse signal, which has propagated through an insulating circuit, into the original state signal or a signal having the same characteristics as the original state signal.

Interface device and information processing system

A battery and a DC-to-DC converter are contained in a battery pack. When the battery pack is connected to a load by means of a connector and an output voltage reference value, corresponding to the power supply voltage of the load, the output voltage of the battery is converted according to the output voltage reference value by the DC-to-DC converter. The output voltage reference value is set by an output voltage reference value output means in the connector. Furthermore, the converted voltage is supplied to the load via an output voltage line.

Mobile type power supply, connection device, and carried type electronic equipment

A semiconductor device capable of achieving downsizing without reducing the power supply efficiency and capable of reducing switching noises and a memory card using the same are disclosed. The device comprises a plurality of stages of voltage booster circuits for potentially raising a power supply voltage up to a final output voltage, a voltage control unit for controlling an output voltage at a nearby location of the final stage, and one or more internal elements to which the final output voltage is supplied. A primary voltage booster circuit at the first stage includes an inductance element, a switching element, a diode and a driver circuit. At a metal core part of the inductance element, a metal wiring line is used, which was formed by use of a fabrication process of semiconductor integrated circuits, while employing for its core part an inter-wiring layer dielectric film that was formed using the fabrication process. In addition, the switching element and the diode are arranged so that portions thereof are disposed beneath the inductance element.

Semiconductor device and memory card using same

A master unit sends a start signal to a slave unit. When receiving the start signal from the master unit, the slave unit sends, to the master unit, a synchronization field that is a data train (pulse signal) indicative of a transfer clock with which the slave unit is able to perform transferring and receiving operations. The master unit sends, to the slave unit, command data in accordance with the transfer clock indicated by the synchronization field sent from the slave unit. In response to the command data sent from the master unit, the slave unit sends, to the master unit, response data in accordance with the transfer clock indicated by the synchronization field. Thus, in a communication system employing a serial data transferring apparatus of the present invention, the master unit establishes the synchronization for the data transfer, while the slave unit is free from a burden of establishing the synchronization for the data transfer. A serial data transferring apparatus is realized which can simplify the structure of the slave unit, cut the total cost, and reduce noise.

Serial data transferring apparatus

A low-cost vehicle control system and a car using the system controls radiation of an actuator driver and thereby reduces the radiation component cost and allows downsizing of an electronic control unit to improve the versatility. The vehicle control system has an electronic control unit, a plurality of actuators and actuator drivers for driving the actuators at the actuator side. The actuator drivers, respectively, have an independent self-diagnosis section, a self-protection section, and a communication control section and are dispersed correspondingly to the actuators.

Vehicle control system and automobile using the same

A low-cost vehicle control system and a car using the system controls radiation of an actuator driver and thereby reduces the radiation component cost and allows downsizing of an electronic control unit to improve the versatility. The vehicle control system has an electronic control unit, a plurality of actuators and actuator drivers for driving the actuators at the actuator side. The actuator drivers, respectively, have a independent self-diagnosis section, a self-protection section, and a communication control section and are dispersed correspondingly to the actuators.

A semiconductor integrated circuit device including a driver circuit, a first long-distance wiring connected to the driver circuit, and a plurality of gate circuits connected over the entire length of the first long-distance wiring, so that an output signal of the driver circuit is received by the plurality of gate circuits via the first long-distance wiring, wherein a node arranged in the vicinity of an input terminal of the gate circuit connected to an input terminal of the driver circuit and an end of the first long-distance wiring is connected by a second long-distance wiring and a speed-increasing circuit.

Semiconductor integrated circuit device

A lighting apparatus capable of improving amenity and energy-saving and controlling a lighting load as a user intends to do. The lighting apparatus is connected to a network and controlling the lighting load corresponding to information from the network, and the lighting apparatus further comprises an automatic mode for controlling the lighting load corresponding to the information from the network, a manual mode for controlling the lighting load independently of the information from the network, and a switching means for switching between the automatic mode and the manual mode.

Lighting apparatus, lighting control system and home electric appliance

A semiconductor integrated circuit device, responsive to an input signal having a low amplitude and short transition time, operates with low power consumption and prevents the flow of breakthrough current. In an example circuit thereof, the input signal is transmitted through an NMOS pass transistor to the gate of a first NMOS transistor and is applied, through a second NMOS transistor, to the gate of a first PMOS transistor, the first PMOS transistor performing complementary operation with the first NMOS transistor through the second NMOS transistor; the gate of the first PMOS transistor is connected to the power supply potential through the second PMOS transistor; the gate of the second NMOS transistor is connected to the power supply potential; and the gate of the second PMOS transistor is controlled by the signal at a common drain connection of the first NMOS and first PMOS transistors.

Gate circuit and semiconductor circuit to process low amplitude signals, memory, processor and information processing system manufactured by use of them

There is disclosed a circuit apparatus which is highly tolerant to noises and operates at a higher speed than a conventional completely complementary static CMOS circuit. To achieve this, the circuit apparatus features a plurality of CMOS static logic circuits which are series-connected and potential setting circuitry which is connected to the output parts of these logic circuits and sets the outputs of the output parts to a low level in synchronization with a clock signal, thus propagating signals by operation of the NMOS circuit. In other words, a signal propagation delay occurs only when the N-type logic block conducts. Therefore, circuit operation is speeded up and &agr; particle noise and noises due to charge redistribution effect or leakage current can be prevented. There is also disclosed a parallel data processing apparatus which features such logic circuitry, the data processing apparatus having both a plurality of data processing units, each having a processor and a memory, and a plurality of hard disks.

Semiconductor integrated circuit apparatus

In an interface device in which by means of a buried insulation film and a region insulation portion an SOI substrate is divided into a semiconductor support substrate region a controller side region and a network side region and a part of isolator circuits and making use of a static capacitance are formed in the network side region the semiconductor support substrate region and the network side region are connected to a network power source to always keep these regions at a same potential, thereby, an interface device using a dielectric isolation substrate which suppresses erroneous operations due to noises and characteristic deterioration, and a system using the same are provided.

Interface device and interface system

Growing community of inventors

Urizura, Japan

Fumio Murabayashi