Hitachi, Ltd.

Nec Corporation

Yuichi Igarashi

Takuma Nishimura

Ryo Nakano

Hiroshige Kashiwabara

Jumpei Honda

Takahiro Ohira

Takashi Yano

Kenzaburo Fujishima

Yoshiyuki Tajima

Masayuki Shirane

Shinichi Tsunoo

Masami Oonishi

Hiroki Yamada

Ryo Hirana

Hidemasa Nakai

Aiko Yamaguchi

Tomoyuki Yamagata

Yoichi Nakamoto

Toshiko Takamura

Daisuke Inaba

In an aspect, the present disclosure provides a superconducting circuit including: a ground plane including a superconducting member; a plurality of superconducting parts surrounded by a non-conductive part with space from the ground plane, each of the plurality of superconducting parts including four coupling ports each configured to enable the superconducting part to interact with another superconducting part; a superconducting quantum interference device configured to set a resonance frequency of a first superconducting part included in the plurality of superconducting parts; and a multilevel wiring line configured to form, in cooperation with the ground plane, a superconducting loop surrounding the superconducting quantum interference device, in which the superconducting quantum interference device is disposed, in an area inside the superconducting loop, at a place where a magnetic field generated by a current from a bias line for the first superconducting part is applied.

Superconducting circuit

A photodetection element that includes: a substrate with a high infrared transmittance in a desired wavelength region; an electron barrier layer of a type-I superlattice structure, the electron barrier layer being formed above the substrate and lattice-matched to the substrate; and a light-receiving layer of a type-II superlattice structure, formed in contact with the electron barrier layer.

Photodetection element

An inspection target reading device includes a wireless slave station that performs communication via a wireless network, a measurement unit that measures a state of an inspection target, and an analysis unit that generates measurement data, and transmits the measurement data from the wireless slave station via the wireless network. An automatic inspection system includes a wireless master station that communicates with each inspection target reading device via the wireless network, a data acquisition unit that acquires the measurement data from each inspection target reading device through a wireless master station, a data storage unit that stores the measurement data, a determination condition storage unit that stores determination conditions related to the measurement data, and an inspection unit that outputs predetermined measurement data selected from the stored measurement data and a predetermined determination condition corresponding to the predetermined measurement data among the stored determination conditions in association with each other.

Automatic inspection system and method for controlling automatic inspection system

A communication system includes: storage to store location information of each of a plurality of devices capable of wireless multi-hop communication, site configuration information including location and size information of an obstacle present at a site of the plurality of devices, and communication quality information between devices; a determination unit determines whether a repeater needs to be added for each of the plurality of devices, based on communication quality information; and a decision unit calculates an expected value related to attenuation of received power between the first and second devices caused by the obstacle, and decides a location for the determination unit to add the repeater based on location information of the first device determined, location information of the second device different from the first device and communicated with the first device through the repeater, the communication quality information between the first and second device, and the site configuration information.

Communication system, communication management method, and network management apparatus

A computer system, which estimates a radio wave propagation characteristic in a space where a wireless communication system using structure data and system data is constructed, includes a computer having a processor and a storage apparatus and holds feature parameter information, which stores an entry that associates a parameter included in structure data, that is, a feature parameter which greatly contributes to an estimation result of the radio wave propagation characteristic in the space with a type of the space. When receiving a request for estimation of a radio wave propagation characteristic in a target space, the processor retrieves an entry associated with a type of the target space from the feature parameter information, and presents an interface to input a value of the feature parameter included in the retrieved entry as estimation structure data and an interface to input estimation system data.

Computer system, method for estimating radio wave propagation characteristic in space, and computer

A data collection apparatus collecting data from a terminal device connected through a communication path, comprising a schedule managing unit determining a schedule transmitting a data acquisition request to the terminal device according to managed timing data, a transmission amount adjusting unit adjusting a transmission amount of the data acquisition request, and a collected data managing unit managing the data collected from the terminal device, in which the schedule managing unit manages a start point time that is a time at which a data collection from each terminal device starts, a collection period that is an interval of the data collection from each terminal device, a retransmission interval that is a time until the data acquisition request is retransmitted when the data collection from the terminal device fails, and a retransmission number that is the number of times to retransmit the data acquisition request as the timing data.

Data collection apparatus and data collection method

An on-site system includes a disclosure-condition-table storage unit and a disclosure-condition-table creation unit. The disclosure-condition-table storage unit stores a disclosure condition table for management of a relationship between a purpose of a service and a data characteristic of on-site data, as a disclosure condition for disclosing the on-site data to a service device that provides the service. The disclosure-condition-table creation unit creates the disclosure condition table in which a purpose of a service included in descriptive information of the service is associated with a data characteristic included in descriptive information of the on-site data, and stores the disclosure condition table in the disclosure-condition-table storage unit.

On-site system

A data providing apparatus includes a field data acquisition unit configured to acquire field data relating to field equipment, and a data providing unit configured to transmit and receive information to and from a service providing unit, the service providing unit being a communication target and configured to use the field data as service data, in which the data providing unit manages information on a conversion rule defining a relationship between the field data and the service data, acquires the field data specified in a data acquisition request from the service providing unit, from the field data acquisition unit, converts the acquired field data to service data according to the conversion rule when there is a difference between a specification of the field data and a specification of the service data, and transmits the data obtained by the conversion to the service providing unit.

Data providing apparatus and data providing method

A data provision apparatus for providing site data to a service apparatus stores explanatory information for the site data including a specification of the site data, explanatory information of the service including the site data and a specification of the site data required by the service, and a rule for transforming the site data into that required by the service using the site data, the explanatory information of the site data, the explanatory information of the service, and the transformation rule being registered in advance; and refers to the explanatory information of the site data, the explanatory information of the service, and the transformation rule in response to a transfer request of the data from the service apparatus. All pieces of the site data used by the service are transformed into data of the specification required by the service and are transferred to the service apparatus.

Data provision apparatus and data provision method

An infrared detector includes a semiconductor substrate, a first contact layer formed on the semiconductor substrate, a light-absorbing layer formed on the first contact layer, a second contact layer formed on the light-absorbing layer, and a voltage source that applies a voltage between the first contact layer and the second contact layer. The light-absorbing layer includes at least a part in which a first intermediate layer, a quantum dot layer, a second intermediate layer, a current block layer, a third intermediate layer, and an electron-doped layer are stacked in this order. The energy at a bottom of a conduction band in the current block layer is larger than the energy at a bottom of a conduction band in the intermediate layer and the thickness of the first intermediate layer is larger than the thickness of the third intermediate layer.

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Tokyo, Japan

Yuichi Igarashi