Hitachi, Ltd.

Renesas Technology Corp.

Nissan Motor Company Limited

Hitachi Tohbu Semiconductor, Ltd.

Other

Murata Manufacturing Co., Ltd.

Renesas Electronics Corporation

Fujitsu Component Limited

Space Communications Research Corporation

Kenji Sekine

Osamu Kagaya

Kiichi Yamashita

Akira Endo

Eiichi Hase

Tetsuaki Adachi

Masami Ohnishi

Yasuhiro Nunogawa

Shizuo Kondo

Sakae Kikuchi

Iwamichi Kohjiro

Ken Takei

Tomonori Tanoue

Yoichi Kaneko

Isao Yoshida

Masatoshi Morikawa

Yoshikuni Matsunaga

Toru Fujioka

Mineo Katsueda

Hidetoshi Matsumoto

Hiroshi Kondoh

Yukitsugu Hirota

Katsuhiro Kimura

Hiroshi Shinoda

Akira Matsumura

Haruhiko Funaki

Masahiro Tsuchiya

Tetsuo Ono

Keishi Tamura

Tetsuhiro Ishikawa

Hideaki Sasaki

Seiichi Murayama

Hiroshi Okabe

Kazuyuki Hori

Hideyuki Nagaishi

Yuzo Taniguchi

Isao Ohbu

Eriko Takeda

Dai Taninaka

Masanobu Yamamoto

Terumi Nakazawa

Michio Tanimoto

Tomoyuki Kato

Kazuhide Sano

Kazuo Matsuura

Takahiko Tanigami

Hiroji Yamada

Akira Tachibana

Hiroshi Morozumi

Hiroshi Kishida

Matsuo Yamasaki

Keigo Kamozaki

Akio Iso

Nobuo Masuda

A printer includes a head unit and a platen unit. The head unit includes a print head. The platen unit includes a platen roller, a support, and a guide roller. The platen roller is rotatably supported on the support and configured to rotate to convey recording sheet. The guide roller includes a roller part, and the roller part is configured to rotate in contact with the recording sheet as the recording sheet is conveyed.

Printer including guide roller with roller part that rotates in contact with recording sheet

This invention proposes a computing system and a backup method capable of improving the backup efficiency. In accordance with copy requests from the host, the data written to the first logical volume in the first storage system is copied to the second logical volume in the first storage system, the data copied to the second logical volume is used to form a journal and is transferred to the second storage system asynchronously, with the writing of data from the host to the first logical volume. In the second storage system, the data transferred from the first storage system is written to the third logical volume in the second storage system.

Computing system and backup method

In a semiconductor device such as a high-frequency power amplifier module, a plurality of amplifying means are formed on a semiconductor chip which is mounted on a main surface of a wiring substrate, and electrodes of the semiconductor chip are electrically connected by wires to electrodes of the wiring substrate. In order to make the high-frequency power amplifier module small in size, a substrate-side bonding electrode electrically connected to a wire set at a fixed reference electric potential is place at a location farther from a side of the semiconductor chip than a substrate-side output electrode electrically connected to an output wire. A substrate-side input electrode electrically connected to an input wire is located at a distance from the side of the semiconductor chip about equal to the distance from the side of the semiconductor chip to the substrate-side output electrode, or at a location farther from the side of the semiconductor chip than the substrate-side bonding electrode is.

Semiconductor device

Provided is a storage system having one or more logical devices mapped to a virtual device provided in a mapping destination storage system, and a storage controller for controlling the reading and writing of data from and to the logical devices. Upon receiving a reserve command from the mapping destination storage system, the storage controller restricts the access from an initiator other than the mapping destination storage system to a logical device to which access restriction is designated with the reserve command.

Storage system, storage access restriction method and computer program product

A maintenance terminal for a disk array device is provided which can make setting of the disk array device and can easily confirm the setting contents. The maintenance terminal for the disk array device has three jumper connectors as setting terminals into which a conduction pin is inserted. The maintenance terminal also has eight light emitting diodes disposed in two rows and being capable of turning on and off in correspondence with a setting state of the disk array device in a network selectively changed through insertion of the conduction pin into the setting terminals.

Maintenance terminal of disk array device

The present invention provides a radio frequency power amplifier which may not introduce radio frequency loss during switching power amplifier units between high and low output power levels. By connecting a first-stage matching network Mand first-stage matching network Mto respective output nodes of a power amplifier unit Aand power amplifier unit Athat either one operate by switching, connecting the output nodes of the first-stage matching network Mand Min parallel, connecting a last-stage matching network Mbetween the junction of Mand Mand the output terminal OUT, the first-stage matching networks M, M, and last-stage matching network Mare formed, for both power amplifier units Aand A, so that impedance matching is established between the output terminal OUT and the power amplifier unit in operation when one unit is in operation the other is in stop of operation. The present invention allows switching from one power amplifier unit to the other without the need of a radio frequency switch.

Radio frequency power amplifier

The present invention provides a communication terminal that enables precise communications with optimum receive sensitivity at any time regardless of any change in peripheral environments of an antenna thereof. The communication terminal including means for transmitting and receiving radio waves is provided with a training mechanism for enabling the communication terminal itself to conduct training mode for tuning receive sensitivity, and switching mechanism for switching between normal communication mode and the training mode. The communication terminal is particularly useful as a communication terminal for automobile in the Intelligent Transport System or the like.

Communication terminal, automobile communication terminal, and automobile

The present invention provides a radio frequency power amplifier which may not introduce radio frequency loss during switching power amplifier units between high and low output power levels. By connecting a first-stage matching network M12 and first-stage matching network M13 to respective output nodes of a power amplifier unit A11 and power amplifier unit A12 that either one operate by switching, connecting the output nodes of the first-stage matching network M12 and M13 in parallel, connecting a last-stage matching network M11 between the junction of M12 and M13 and the output terminal OUT, the first-stage matching networks M12, M13, and last-stage matching network M11 are formed, for both power amplifier units A11 and A12, so that impedance matching is established between the output terminal OUT and the power amplifier unit in operation when one unit is in operation the other is in stop of operation. The present invention allows switching from one power amplifier unit to the other without the need of a radio frequency switch.

In a semiconductor device such as a high-frequency power amplifier module, a plurality of amplifying means are formed on a semiconductor chip which is mounted on a main surface of a wiring substrate, and electrodes of the semiconductor chip are electrically connected by wires to electrodes of the wiring substrate. In order to make the high-frequency power amplifier module small in size, a substrate-side bonding electrode electrically connected to a wire set at a fixed reference electric potential is placed at a location farther from a side of the semiconductor chip than a substrate-side output electrode electrically connected to an output wire. A substrate-side input electrode electrically connected to an input wire is located at a distance from the side of the semiconductor chip about equal to the distance from the side of the semiconductor chip to the substrate-side output electrode, or at a location farther from the side of the semiconductor chip than the substrate-side bonding electrode is.

In a mobile telephone apparatus corresponding to dual-band provided with an RF power module to operate in two kinds of different frequencies, a common harmonics control circuit is provided to the output circuit of such RF power module to realize higher efficiency in view of controlling respective harmonics power for both band frequencies. Moreover, a means for selectively setting the bias is also provided so that the maximum efficiency can be attained depending on the output power required with respective communication systems with the bias control signal output from the CPU of the control unit interlocking with selection of frequency of the mobile telephone apparatus body.

Mobile telephone apparatus

A high frequency communication device which can reduce undesired electromagnetic coupling inside and outside a box thereof in which circuit parts constituting a transmitter-receiver circuit are contained. Periodic structures () are provided on at least a part of a wall constituting a box () so that the periodic structures () serve as a filter which has a non-propagating frequency band corresponding a frequency band covering an undesired electromagnetic emission inside the box. Thus, undesired electromagnetic emission energy from any electromagnetic emission source can be confined locally to prevent a possible problem of electromagnetic interference.

High frequency communication device

Growing community of inventors

Hinode, Japan

Kenji Sekine