Ricoh Company, Ltd.

Tokico, Ltd.

Hitachi, Ltd.

Kabushiki Kaisha Hitachi Seisakusho

Hitachi Automotive Systems, Ltd.

Japan Tobacco Inc.

Junichi Ikeda

Hiroyuki Takahashi

Noriyuki Terao

Koji Takeo

Satoru Numakura

Koji Oshikiri

Mitsuru Suzuki

Yukio Ohtani

Tetsuya Satoh

Hiroaki Kyougoku

Hideaki Yamamoto

Noriyuki Utsumi

Yoshimasa Ito

Yutaka Maita

Atsuhiro Oizumi

Tomonori Tanaka

Hiroo Kitagawa

Hirotaka Oikawa

Keiichi Iwasaki

Toshihiro Tsukagoshi

Hidetake Tanaka

Iwao Hamaguchi

Hiroyuki Kimbara

Naoki Tsumura

Kohki Sasaki

Atsuya Koshu

Kazuhiro Nagai

Tohru Sasaki

Jun Watanabe

Daisuke Goto

Hiromi Ando

Kazutaka Suefuji

Masaru Miyazaki

Yuichi Kobayashi

Hiroki Takeda

Yoshihisa Sato

Tatsutoshi Kitajima

Katsuhiko Aisu

Hiroyuki Abe

Takayuki Ohno

Norihiro Sakaguchi

Shinya Manabe

Yasuyuki Shindoh

Tamio Uemura

Toshihide Kohata

Iwao Ohtani

Takahisa Hirasawa

Hideaki Ikeda

Junji Hashizume

Yukio Otani

Hiroshi Yoshikura

Tsuyoshi Kawase

Tessyu Naka

Shinichi Nojima

A communication apparatus for carrying out communications to and from an external apparatus that includes a first interconnecting unit and a first non-transparent port and effects an interconnection for communications via the first non-transparent port is provided. The communication apparatus includes a second interconnecting unit that includes a second non-transparent port communicably connected to the first non-transparent port. The second interconnecting unit effects an interconnection for communications via the second non-transparent port. The second interconnecting unit performs, when the communication apparatus carries out communications to and from the external apparatus, address translation between an address for use by the communication apparatus and an address for use by the second non-transparent port.

Communication apparatus, communication system and adapter

A communication device includes a signal correcting unit that performs signal correction on an electric signal indicating information to be transmitted to reduce signal deterioration occurring in transmission of the electric signal; a conversion unit that converts the electric signal subjected to the signal correction into a digital signal on which information indicating the signal correction performed by the signal correcting unit is superimposed; and a light-emitting element that emits light in accordance with the digital signal converted by the conversion unit.

Communication device and communication method

An electrically actuated booster performs displacement control such that the relative displacement relationship between an input member and an assist member is variable according to the absolute displacement of the input member. A target displacement that makes variable the relative displacement relationship between an input piston and a booster piston is set according to a detection signal from a potentiometer (), and displacement control is performed so that the relative displacement between the two pistons becomes equal to the target displacement on the basis of a signal from a relative displacement sensor () that detects the relative displacement between the two pistons.

Electrically actuated booster

A memory control apparatus that controls writing and reading of data to/from a memory. The memory control apparatus includes: a sequence control unit that receives a packet sequence including a write packet including a write request of data and a read packet including a read request of the data, and changes an arrangement of the write packet and the read packet included in the packet sequence so that a first predetermined number of write packets are arranged successively and a second predetermined number of read packets are arranged successively; and a command output unit that receives the packet sequence from the sequence control unit, and outputs a write command according to the write packet and an a read command according to the read packet to the memory, in accordance with an order of arrangement of the write packet and the read packet.

Memory control apparatus, information processing apparatus, and memory control method

An image forming apparatus receives raster image data transferred from an external device and forms an image on the basis of the received raster image data. The apparatus includes a processor that controls a transfer of the raster image data from the external device, a first memory connected to the processor through a first bus is used as a working area of the processor, a second memory that stores the raster image data, a memory control unit connected to the second memory through a second bus controls an operation of writing and reading the raster image data in and from the second memory, a printer engine that forms an image on the basis of the raster image data, and an engine control unit that reads the raster image data from the second memory through the memory control unit and supplies the printer engine with the read raster image data.

Image forming apparatus and image forming system having a first memory and a second memory

A data transfer apparatus includes: a first port and a second port that communicate data; a memory unit that stores the data; and a securing unit that secures, when a first time period starting from transmission of data up to reception of a response to transmitted data at the first port is longer than a second time period starting from transmission of data up to reception of a response to transmitted data at the second port, a first memory space that is used in data transfer in the first port so as for the first memory space to have a larger size than a size of a second memory space used in data transfer in the second port.

Data transfer apparatus, data transfer device, and data transfer method in a data transfer device

Even when a rigidity table stored in a RAM at the time of a start of a brake operation does not coincide with an actual rigidity characteristic of an electric caliper which changes according to brake conditions including how often and how long a brake operation is applied, it is possible to reduce a deviation between a pressing force instruction value and a generated pressing force by updating the characteristic of the relation between a pressing force instruction value and rotational position each time an estimated thrust force value is calculated during one brake operation. It is possible to steadily keep followability to a pressing force instruction according to an actual state of the rigidity characteristic of the electric caliper, thereby ensuring generation of an appropriate brake force.

Electric brake apparatus

Electrically Actuated Booster

A pulse current from a pulse current supply side is fed to a middle part of an anode holding body to which anodes are connected; both end portions of a cathode holding body, to which cathodes are connected, are connected to a negative pole on the pulse power source side; and inductances of wiring between adjacent anodes and inductances of wiring between adjacent cathodes are set at a ratio of 1:2:3:4 in a direction of spacing from a connection to the pulse power source side. Pulse currents are equally fed to each work and it can be ensured that chromium plating treatment of each work is made equal.

Method of manufacturing chromium plated article and chromium plating apparatus

An electric booster according to the present invention comprises a booster piston disposed around an input piston so as to movable relative to the input piston. The booster piston and input piston also serve as a primacy piston of a tandem master cylinder. A brake fluid pressure is generated in the tandem master cylinder by an input thrust force provided from a brake pedal to the input piston and a booster thrust force provided from the electronic actuator to the booster piston. In this electric booster, a slide hole is formed through the secondary piston of the tamed master cylinder in the axial direction therefore, and a rod member is slidably disposed through the slide hole. When the fluid pressure is not increased in the primary pressure chamber, due to the fluid pressure in the secondary pressure chamber, the rod member comes to abut against the input piston, and a reactive force in the secondary pressure chamber is returned to the brake pedal.

Electrically driven brake booster and master cylinder

An electrically actuated brake booster capable of obtaining a desired boost ratio for a given input pressure when an electric actuator is activated as a boost source, so as to ensure a desired operability of a brake pedal. The electrically actuated brake booster comprises: an input pistonto which an input thrust is applied through an input rodthat moves in coordination with operation of a brake pedal; and a booster pistonto which a booster thrust is applied by an electric actuatorthat uses an electric motoras a drive source, such that the input pistonand the booster pistonare disposed to be movable relative to each other but are normally maintained in a neutral position of relative displacement by means of springs. While an amount of relative displacement between the pistonsandis determined by the potentiometer, the electric motoris controlled to adjust the amount of relative displacement to a predetermined value. At the same time, a reaction force acting on the input pistonresulting from a hydraulic brake pressure is offset by urging forces of the springsto thereby obtain a desired level of boost ratio.

Electrically actuated brake booster

A communication apparatus is disclosed that includes a transmission circuit configured to transmit transmission data to a communication counterpart; a reception circuit configured to receive reception data from the communication counterpart; a storage device configured as at least two buffers including a transmission buffer that stores the transmission data and a reception buffer that stores the reception data; and an address mapping unit configured to perform address mapping of the buffers including the transmission buffer and the reception buffer on the storage device, and adjust the storage capacity of the transmission buffer and the storage capacity of the reception buffer.

Communication apparatus, electronic apparatus, imaging apparatus

A statistical-information generating unit monitors packet data output from a transaction layer that constitutes architecture of a PCI Express. The result of the monitored is feedback-controlled to a weight-information updating unit in real time, and is reflected in an arbitration table. A priority is set to the packet data corresponding to a quantity of the packet data actually transferred on a serial communication path.

Data communication circuit and arbitration method

An image forming apparatus includes an image input device that reads an image to obtain image data and a printer engine that forms an image on a medium based on image data. A bus of a PCI Express standard is used to transfer data. Storage areas serving as end points of the standard and hardware resources that transmit data and receive image data to and from the storage areas are connected to an identical switch according to the PCI Express standard. Specifically, an input/output area, an image input device, and a printer engine are connected to one switch, and a storage area, a compressor, and a hard disk is connected to another switch.

Image processing apparatus and image forming apparatus

Growing community of inventors

Tokyo, Japan

Junichi Ikeda