Hitachi, Ltd.

Nidec Tosok Corporation

Hitachi Astemo Ltd.

Elpida Memory, Inc.

Renesas Electronics Corporation

Isuzu Motors Limited

Other

Nissan Motor Company Limited

Ps4 Luxco S.a.r.l.

Hitachi Metals, Ltd.

Hitachi Automotive Systems, Ltd.

Longitude Semiconductor S.a.r.l.

Yutaka Uematsu

Hideki Osaka

Shuichi Kinjo

Yoji Nishio

Hiroshi Shirai

Hideyuki Sakamoto

Yasuhiro Ikeda

Kenichi Shimbo

Satoshi Muraoka

Tadanobu Toba

Shun Kato

Kazumi Shinkai

Yukitoshi Hirose

Takumi Uezono

Masahiro Toyama

Mitsuaki Katagiri

Seiji Funaba

Ken Iwakura

Yuzo Akasaka

Goro Hamamoto

Yuki Nakamura

Satoru Watanabe

Takayuki Ono

Norio Chujo

Eiichi Suzuki

Masayoshi Yagyu

Toshiaki Nakamura

Hitoshi Ueno

Akio Idei

Masabumi Shibata

Tadayuki Hatsuda

Yuichi Fukuda

Michinori Naito

Jin Yokoyama

Takashi Miyagawa

Hiroshi Kakita

Ryunosuke Oikawa

Taishi Sumikura

Tatsuya Saito

Masayoshi Takahashi

Hiroki Funato

Shuuichi Kariyazaki

Kazuyuki Nakagawa

Masashi Saito

Keita Tsuchiya

Yuusuke Fukumura

Fujio Arai

Tatsuyuki Ootani

Hidetatsu Yamamoto

Kohei Osuga

Nozomi Kasahara

Hiroaki Itsuji

Yohei Oshima

Kazuhiro Saito

Hiroki Fujisawa

Keisuke Yamamoto

Junji Ogawa

Yoshiaki Sato

Teruo Nakada

Satoshi Nakamura

Takashi Suga

Hideyuki Koseki

Tsutomu Hara

Yoshihiro Kondo

Toshihiko Akiba

Susumu Hatano

Shunichi Saito

Masahiro Shiraishi

Kenichi Ozawa

Yoji Idei

Shinsuke Onoe

Isao Hoda

Takayoshi Matsuoka

Koichi Ishige

Mitsuhiro Masuda

Hiromasa Takeda

Kazunori Nakajima

Toru Yazaki

Naoya Ishikawa

Umberto Paoletti

Akihiro Inamura

Takahiko Iwasaki

Hiroyuki Nagatomo

Yosuke Katsura

Junichi Masukawa

Toshiaki Takai

Masatsugu Oshimi

Masato Shimizu

Yusuke Fukumura

Koichiro Aoki

Shinji Katayama

Shuichi Nishino

Jaehyun Kim

Shungo Okabe

Nobushige Nakajima

Go Shinkai

Tatusya Saito

Jouji Matsushita

Ryu Hariyoshi

A signal transmission system includes: a first signal line and a second signal line each making up a differential line; a first capacitive load mechanism disposed in a first region connected to the first signal line, the first capacitive load mechanism having a first capacitance value; and a second capacitive load mechanism disposed in a second region connected to the second signal line and to the ground point line, the second capacitive load mechanism having a capacitance value asymmetric with the first capacitance value. This signal transmission system suppresses an increase in mode conversion loss caused by component characteristics variations.

Signal transmission system

A processor system includes: one or more processors; and one or more memory resources. The memory resource is configured to store a diagnostic program configured to diagnose an electronic system including a mobile body or equipment, and a plurality of knowledge graphs for use in the diagnostic program and including at least a first knowledge graph and a second knowledge graph created based on domain knowledge different from that of the first knowledge graph. The processor is configured to execute the diagnostic program to (1) evaluate a semantic similarity between a first knowledge item included in the first knowledge graph and a second knowledge item included in the second knowledge graph, and (2) generate, when the similarity satisfies a predetermined condition, an integrated graph in which the first knowledge graph and the second knowledge graph are integrated.

Processor system and failure diagnosis method

An arithmetic operation target is input to an information processing apparatus which causes an accelerator apparatus to perform an arithmetic operation using the arithmetic operation target. The information processing apparatus performs, regarding each of a plurality of arithmetic operation elements of the arithmetic operation target, whether to allocate one or more diagnostic circuits, which are available processing circuits for an accuracy diagnosis of the arithmetic operation from a plurality of processing circuits in the accelerator apparatus to the arithmetic operation element on the basis of a failure influence degree. The reliability of the information processing apparatus that is used to judge whether or not to continue an action(s) of the information processing apparatus is calculated on the basis of the number of arithmetic operation elements of the arithmetic operation target, the number of arithmetic operation elements to which at least one diagnostic circuit is allocated, and the failure influence degree.

Information processing device and information processing method using accelerator device

There is provided a printed wiring board including an outermost conductive layer that includes a plurality of conductive pads, a first conductive layer that includes a first inner-layer wiring and is stacked on the conductive layer, a second conductive layer that includes a second inner-layer wiring and is stacked on the conductive layer and the first conductive layer, a first signal via that connects one of the conductive pads and the first inner-layer wiring with each other, a second signal via connecting another one of the conductive pads and the second inner-layer wiring with each other, and a stitching via that is connected to a ground. The first inner-layer wiring and the second inner-layer wiring form a common wiring route in which the first inner-layer wiring and the second inner-layer wiring are stacked and disposed in a connection area in which the conductive pads are arranged.

Printed wiring board and information processing apparatus

The subject is to provide a technique of dealing with an internal state of a controller in an edge device by cooperation between an edge device and a computer such as a cloud server, and to generalize data communication for the cooperation and reduce an amount of data communication. Provided is a distributed system including an edge device and a diagnostic data computer. The edge device includes an in-edge controller including at least a processing unit, and a system element to be monitored by the in-edge controller. The processing unit diagnoses presence or absence of an abnormality in the processing unit due to an abnormality occurring in the system element, generates first diagnostic data indicating presence or absence of the abnormality of the processing unit, converts the first diagnostic data into second diagnostic data indicating a type of the abnormality of the processing unit, and transmits the second diagnostic data to the diagnostic data computer.

Distributed system and data transmission method

It is possible to reduce the amount of data transmitted from the edge system to the outside while securing the amount of information necessary for purposes such as factor analysis and diagnosis and the cycle of information acquisition. A distributed system includes: an edge device that is a moving body or equipment capable of automatic operation; and a diagnostic data computer. The edge device has: at least one of a movement mechanism and an actuation mechanism for implementing automatic operation; a component corresponding to at least one of the movement mechanism and the actuation mechanism; and an intra-edge controller that controls the component. The intra-edge controller reads state data acquired in the component, aggregates the read state data into component-level state data, determines an allowable latency when transferring the component-level state data to a transfer destination according to a predetermined rule, and transfers the component-level state data to the diagnostic data computer based on the allowable latency.

Distributed system and data transfer method

A signal transmission circuit includes: a circuit board stored in a housing; a connector which is mounted on the circuit board and includes a first signal terminal and a first ground terminal; and an integrated circuit which is mounted on the circuit board and includes a second signal terminal and a second ground terminal. The first signal terminal and the second signal terminal are connected to each other by a signal wiring arranged on the circuit board. The first around terminal and the second ground terminal are connected to each other by a ground wiring arranged in a predetermined range including a portion immediately above or immediately below the signal wiring in the circuit board. At least a part of the ground wiring immediately above or immediately below the signal wiring has a high impedance structure formed to be wider than the signal wiring and narrower than a combined width of the first signal terminal and the first ground terminal.

Signal transmission circuit and electronic control device

An electronic control device includes: a circuit board configured to be provided in a frame and to have a communication circuit capable of receiving or transmitting differential signals via a pair of signal pins; a connector configured to be electrically connected to the circuit board and to input signals transmitted from an electronic device outside the frame by single-end transmission to the communication circuit; and a noise cancellation signal output circuit configured to output noise cancellation signals corresponding to noise superimposed on the signals in the connector, wherein one signal pin of the pair of signal pins of the communication circuit is connected to the connector, and the other signal pin is connected to the noise cancellation signal output circuit.

Electronic control device

An electronic control device includes a conductive casing; a circuit board which is provided in the casing, and on which an electronic component including an integrated circuit is mounted; and a conductive conductor component that is provided on the circuit board, is disposed at a position higher than the electronic component, and has an elongated shape, in which a distance between the conductor component and the casing is shorter than a distance between the conductor component and the circuit board.

A distributed system includes an edge device which is at least one of an automatically operable moving body and equipment, and a diagnostic data computer, in which the edge device converts state data representing a state of a component that is a constituent of a replaceable unit forming the edge device, into diagnostic data according to a predetermined diagnostic algorithm, and the diagnostic data computer acquires the diagnostic data from a first edge device, and specifies a second edge device that employs a component related to the component employed in he first edge device.

Distributed system and data processing method

A signal transmission device includes a communication unit that performs communication using differential transmission with an electronic device via a differential wiring, and a signal processing unit that performs signal processing related to the communication, in which the communication unit is capable of receiving, via the differential wiring, communication signals transmitted from the electronic device at each of a plurality of signal transmission rates including at least a first signal transmission rate and a second signal transmission rate lower than the first signal transmission rate, the communication unit measures an amplitude of the communication signals received from the electronic device at the second signal transmission rate, and the signal processing unit detects a short-circuit failure of a filter circuit on the basis of the amplitude measured by the communication unit.

Signal transmission device, signal transmission system, and information provision method

An electronic control device includes a receiving unit that receives a data signal from an external device via a transmission line, a determination criterion selection unit that determines a determination criterion based on transition information of a waveform in the data signal, and a condition determination unit that determines a condition of a communication system including the external device, the receiving unit, and the transmission line based on a transmission waveform characteristic in the data signal and the determination criterion.

Electronic control device and determination method

A signal transmission circuit includes a common frequency filter configured to filter a signal centering on a common frequency that is an anti-resonance frequency; a first frequency filter configured to filter a signal centering on a first frequency that is an anti-resonance frequency; a second frequency filter configured to filter a signal centering on a second frequency that is an anti-resonance frequency; a first route connected to a first signal wiring line configured to transmit a digital signal; and a second route connected to a second signal wiring line configured to transmit a digital signal. The first route has the common frequency filter connected to a power supply circuit, and the first frequency filter disposed between the common frequency filter and the first signal wiring line and connected in series to the common frequency filter, the second route has the common frequency filter, and the second frequency filter disposed between the common frequency filter and the second signal wiring line and connected in series to the common frequency filter, and both the first frequency and the second frequency are equal to or higher than the common frequency.

Signal transmission circuit and signal transmission system

A signal transmission device including a signal wiring, a wide wiring that is formed continuously with one and the other of the signal wirings and has a wiring width larger than a wiring width of at least the one or the other of the signal wirings, a power wiring to which a signal/power separation filter is connected via a branch wiring branching from the wide wiring, and an open stub wiring that is connected to the branch wiring and has an open tip.

Signal transmission device

A signal transmission device includes a signal side electrode; a first signal line connected to one side of the signal side electrode; a second signal line connected to the other side of the signal side electrode; a power source side electrode that forms a pair with the signal side electrode and is connected to the signal side electrode via an electronic component including at least an inductor component; and a capacitive coupling part that capacitively couples the power source side electrode to a ground wiring or a power source wiring. The first signal line, the signal side electrode, and the second signal line form a transmission path for transmitting an electric signal. The first signal line and the second signal line transmit power via the signal side electrode, the electronic component, and the power source side electrode.

Signal transmission device and signal transmission circuit

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Tokyo, Japan

Yutaka Uematsu