Hitachi, Ltd.

Hitachi Astemo Ltd.

Daisuke Mashimo

Hiroki Ikeda

Hideki Endo

Hiroyuki Kubo

Jun Sugawa

Masahiro Kimura

Mikio Kuwahara

Hideyuki Sakamoto

Takashi Nomura

Keisuke Ampo

Akihiko Sato

Masayuki Takase

Taisuke Ueta

Kiyotaka Takahashi

Shoji Yunoki

Yoshinobu Morita

Yuji Oishi

Shouta Takagi

Masahito Takei

Akihiro Ohnuma

Tao Lin

Takamasa Higashi

It is provided a network system that transfers data, the network system comprising: a first network; a second network connected with the first network and to which a server is connected; a third network connected with the first network and in which a terminal is accommodated; a terminal identification device, wherein the terminal identification device is configured to hold terminal identification information in which the address information of the gateway device in the first network, an identifier of the terminal, and the connection availability of the terminal to the second network are associated with each other, determine the connection availability of the terminal to the second network based on the terminal identification information, and acquire the address information of the gateway device in the first network and the identifier of the terminal from the gateway device to register or update the terminal identification information.

Network system, communication control device, and communication control method

An electronic control device apparatus includes a storage apparatus, a communication apparatus, and a processing apparatus. The processing apparatus determines, based on the level of the shape data included in external map information acquired by the communication apparatus, one of the plurality of control modes with different control methods of the vehicle as the control mode of the autonomous driving control.

Electronic control apparatus, control method, and automated driving system

An electronic control device is mounted on a vehicle and executes automatic driving control using a plurality of pieces of map information. Each piece of the map information includes one or more pieces of partial data corresponding to a predetermined geographical area and being information of a predetermined attribute related to a road of the predetermined geographical area. The electronic control device includes a storage unit that stores one or more pieces of the map information, a specification unit that specifies the map information corresponding to a traveling position of the vehicle, and a control unit that determines a control method of the vehicle at a traveling position of the vehicle according to the partial data included in the map information specified by the specification unit.

Electronic control device, control method, and automatic driving system

A data transfer apparatus includes an acquisition side communication port that receives data including an identifier indicating a classification from an outside, a distribution side communication port that transmits the data to the outside, a storage unit that stores transfer information in which the identifier and a condition related to a time of the data are associated, and a transfer processing unit that decides whether or not to transmit received data which is the data to the distribution side communication port based on the identifier included in the received data and information of the time of the received data, and the transfer information when the received data is received by the acquisition side communication port. The information of the time of the received data is a time at which the received data is received by the acquisition side communication port or a time included in the received data.

Data transfer apparatus and data transfer method

A moving body control method for a moving body includes detecting position information and generating a surrounding map of surroundings of the moving body from map information corresponding to the position information, acquiring sensor information from a sensor and detecting non-map information from the sensor information, determining whether the traveling route can be calculated by adding the non-map information to the surrounding map and applying to the surrounding map first restriction information in which restrictions in setting a traveling route, if the moving body can calculate the traveling route, the first restriction information is applied to the surrounding map to calculate the traveling route, if the moving body cannot calculate the traveling route, second restriction information that relaxes restrictions in setting the traveling route is applied to the first restriction information to calculate the traveling route and the calculated traveling route is outputted to the traveling control module.

Moving body control method, moving body, and moving body control system

To stabilize data communication with a small delay while keeping communication cost low, it is provided a wireless communication terminal, which is capable of coupling to a plurality of wireless communication systems, comprising: a transmission buffer configured to store data to be transmitted; a determination module configured to determine communication quality of the plurality of wireless communication systems based on a result of comparison between an amount of data stored in the transmission buffer and a given threshold; a selection module configured to control a number of wireless communication systems to be used to transmit data, based on a result of the determination of the communication quality; and at least one wireless interface configured to transmit data via the controlled number of wireless communication systems.

Wireless communication terminal, wireless communication system, and communication control method

A transmission system that uses resources of a transmission network efficiently to a request of dynamic bandwidth guarantee from a communication network while controlling a load of a managing server, and connects a logical path of the communication network and a logical path of a transmission network. In the transmission system that has multiple transmission nodes each serving as a component of the transmission network, multiple communication nodes each serving as a component of the communication network, and a managing computer, when an available bandwidth of a default path is smaller than a guaranteed bandwidth contained in control information and then when information about the logical path already having been dynamically constructed coincides with a condition, a logical path that uses a route different from a specified default path is dynamically constructed as a logical path in the transmission network.

Transmission system, managing computer, and logical path construction method

Technology to provide linked control of bandwidth allocation to a plurality of optical network units among the plural wavelengths by a bandwidth allocation section coupled to the plural optical network units.

Optical line terminal and optical network system

In a gain-switching-type transimpedance amplifier, in order to provide a technique capable of preventing unnecessary gain switching caused when noise is received, and preventing decrease in sensitivity caused when noise with a large input level is received, and then, a burst signal with a small input level is received, a transimpedance amplifierincludes: a pre-amplifierto which the burst signal is inputted; an average detection start determination unitfor comparing an output of a pre-amplifierwith a first threshold voltage; an average detection circuitfor detecting and outputting an average value of the output of the pre-amplifierduring a certain period of time from a time point when the output of the pre-amplifierexceeds the first threshold voltage; and a gain switching control unitfor determining whether to switch a gain of the pre-amplifierbased on an output of the average detection circuit

Transimpedance amplifier and PON system

There is a need to provide a multirate burst mode receiver for an OLT to be capable of receiving a high-speed burst signal without the need for a special capability of an ONU in a PON system including a mix of ONUs at different transmission bit rates. A multirate burst mode receiver according to the invention includes a signal input discrimination section and a bit rate discrimination section. The signal input discrimination section detects an average amplitude to discriminate signal input. The bit rate discrimination section detects an envelope curve for a high-frequency component to discriminate a signal bit rate. Based on a discrimination result from the signal input discrimination section and the bit rate discrimination section, the multirate burst mode receiver switches a setting for an optical signal reception section and a serial-parallel converter corresponding to the reception bit rate.

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Tachikawa, Japan

Daisuke Mashimo