Kabushiki Kaisha Toshiba

Toshiba Memory Corporation

Toshiba Energy Systems & Solutions Corporation

Hiroki Kudo

Ren Sakata

Sakie Nagakubo

Yuji Tohzaka

Suh Wuk Kim

Yasuyuki Tanaka

Kenichirou Ogawa

Noriaki Oodachi

Hiroki Shoki

Kenichi Maeda

Masahiro Ishiyama

Shuichi Obayashi

Yoshihiro Oba

Takafumi Sakamoto

Hiroaki Ishihara

Tetsu Shijo

Kohei Onizuka

Akiko Yamada

Fumi Moritsuka

Fumiaki Kanayama

Yosuke Akimoto

Shoji Otaka

Hiroto Nakai

Hiroaki Yamazaki

Yusuke Doi

Hiroyuki Kitagawa

Yosuke Bando

Masaki Nishio

Yujen Lai

Jumpei Ogawa

Yuma Nogami

Kentaro Nakajima

Daisuke Takeda

Noritaka Deguchi

Takaomi Murakami

Arata Miyamoto

Kohei Suzuki

Takeshi Sakoda

Suhwuk Kim

A communication device according to one embodiment includes one or more hardware processors. The processors serve to acquire, from at least one electronic device, output data output from the electronic device. The processors serve to communicate with a server device by a communication technique in which numbers indicating communication timings are synchronized. The processors also serve to transmit, to the server device as a destination, the output data in association with a first number out of the numbers. The first number indicates a timing at which the output data is acquired.

Communication device, computer program product, and communication system

An information processing device according to one embodiment includes a hardware processor. The hardware processor functions to receive, from each of communication devices, communication data including sensor data and time information. The sensor data indicates a result of measurement by a sensor of each communication device. The time information indicates a measurement time of the sensor data. The hardware processor functions to specify, as event communication data, the communication data including event sensor data being the sensor data of an event simultaneously occurring in the network. The hardware processor functions to calculate a time delay amount among the communication devices on the basis of the event sensor data and the time information, each being included in the event communication data of each communication device. The hardware processor functions to correct the time information included in the communication data on the basis of the delay amount.

Information processing device, information processing method, computer program product, and information processing system

A communication system according to an embodiment includes a server system and one or more communication apparatuses. The server system includes a first hardware processor. The first hardware processor determines frequency information indicating processing frequency of predetermined processing executed by the communication apparatuses. The frequency information is determined on the basis of determination information affecting the predetermined processing. The first hardware processor transmits processing frequency of the predetermined processing to the communication apparatuses. The processing frequency is determined on the basis of the frequency information. The communication apparatuses each include a second hardware processor. The second hardware processor receives the processing frequency of the processing from the server system. The second hardware processor executes the predetermined processing on the basis of the received processing frequency.

Communication system, communication method, communication apparatus, and computer program product

A sensor includes a handhole part and a sensor module. The handhole part includes an inner wall and a holder. The holder is located at the inner wall. The sensor module is provided in the handhole part. The sensor module includes a held part held by the holder, a housing connected with the held part, a sensor circuit provided in the housing and including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. A gap is between the inner wall and the housing and between the housing and a first member under the housing.

Sensor and sensor module

A communication device includes one or more processors. The processors acquire, from at least one electronic device, output data output from the electronic device and current time information managed by the electronic device. The processors communicate with a server device using a communication technique in which numbers indicating communication timings are synchronized, and transmits the output data to the server device. The processors calculate corrected time information by correcting the current time information on the basis of a reference number indicating a number serving as a reference. The processors set the calculated corrected time information in the electronic device.

According to one embodiment, a sensor includes a handhole part, a sensor module, and a holder. The handhole part includes an inner wall. The sensor module is provided in the handhole part. The sensor module includes a housing, a sensor circuit provided in the housing, the sensor circuit including a gas sensor element, and a battery configured to supply electrical power to the sensor circuit. The holder holds the sensor module so that a gap is formed between the inner wall and the housing and between the housing and a first member under the housing.

A wireless communication device according to an embodiment is a wireless communication device included in a multi-hop network in which data is relayed in multiple stages in time division communication. A decision unit decides an additional slot, based on identification information received from a child node that transmits data to the wireless communication device. A communication processing unit transmits and receives data using the additional slot and a basic slot assigned based on frame information in the time division communication.

Wireless communication device, communication system, wireless communication method, and computer program product

A communication device according to an embodiment includes one or more hardware processors. The one or more hardware processors: receives, from a server device performing communication by a communication method of synchronizing a number indicating a communication timing, a reference number indicating the number serving as a reference; and determines a processing timing of predetermined processing, based on the reference number.

Communication device, communication method, computer program product, and communication system

According to an embodiment, a wireless communication device includes a memory and one or more hardware processors coupled to the memory. The one or more hardware processors are configured to function as a communication control unit and a determination unit. The communication control unit transmits and receives data to and from a first wireless communication device. The determination unit calculates transmission and reception information based on a transmission and reception result of the data, and variation of received signal intensity of the data, and determines whether to maintain connection to the first wireless device based on the transmission and reception information and the variation. The communication control unit controls communication according to a determination result of the determination unit.

Wireless communication device, wireless communication system, wireless communication method, and computer program product

A wireless communication device includes a memory and a wireless interface and processing circuitry. The memory configured to store data to be transmitted and received. The wireless interface configured to transmit and receive a wireless signal. The processing circuitry coupled to the memory and configured to receive a message from another wireless device, including destination information and acknowledgement information, via the wireless interface, set, in a first period being a period in which the message from a child node which transmits the message upward while setting the child node itself as a destination is received, the acknowledgement information with respect to data received from the child node, process the message including the destination information and the acknowledgement information, and transmit a message including the set acknowledgement information via the wireless interface to another wireless device.

Wireless communication device, wireless communication method and non-transitory computer readable medium

A power transmitting apparatus including a power supply to generate AC power; a power transmitting inductor to transfer the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus; a mutual coupling adjusting unit to adjust a relative position between the power transmitting inductor and the power receiving inductor; and a control unit to control the mutual coupling adjusting unit based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor. The control unit controls the mutual coupling adjusting unit so that the mutual coupling coefficient falls within a predetermined range and an upper limit of the predetermined range is a value less than a maximum of the mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.

Power transmitting apparatus, power receiving apparatus, control apparatus, and wireless power transfer system

According to one embodiment, a data transmission device, includes: a wireless transmitting circuitry transmitting a wireless signal; measurement circuitry measuring a state of a measurement target at a first sampling rate and acquiring a first measurement value of the state of the measurement target; and controlling circuitry determining whether the first measurement value satisfies a first condition based on a first threshold value. The wireless transmitting circuitry transmits the plurality of first measurement values acquired before the first condition is satisfied when the first condition is satisfied. The measurement circuitry switches the first sampling rate to a second sampling rate higher than the first sampling rate when the first condition is satisfied, measures a state of the measurement target at the second sampling rate, and acquires a second measurement value of the state of the measurement target. The wireless transmitting circuitry transmits the second measurement value.

Data transmission device, non-transitory computer readable medium, and data reception device

According to one embodiment, a wireless communication device connected with a multi-hop network includes one or more processors. The processors communicate with a first parent node of the wireless communication device and with a child node of the wireless communication device. The processors transmit an instruction to restrict communication to the child node or do not receive data from the child node when receiving an abnormality notification indicating an abnormality from the first parent node.

According to one embodiment, a data management device collecting data from a plurality of wireless nodes in a wireless multihop network is provided. The data management device includes a transceiver configured to transmit and receive a radio signal; and controlling circuitry. The controlling circuitry determines a first range of numbers of hops from the data management device for execution of route control in the wireless multihop network, performs the route control for the first range of numbers of hops and does not perform the route control beyond the first range of numbers of hops from the data management device.

Data management device, wireless communication device and wireless multihop network

According to an embodiment, a communication apparatus includes a receiver, a first beacon processor, a second beacon processor, and an authentication processor. The receiver receives a first beacon transmitted over a wireless network while being protected by a first common key and a second beacon transmitted over the wireless network while not being protected by the first common key. The first beacon processor accesses the wireless network using information contained in the first beacon when the first common key is provided. The second beacon processor accesses the wireless network using information contained in the second beacon when the first common key is not provided. The authentication processor performs connection authentication to the wireless network using information contained in the second beacon and acquires the first common key.

Growing community of inventors

Kawasaki, Japan

Hiroki Kudo