Kabushiki Kaisha Toshiba

Sony Corporation

Toshiba Memory Corporation

Yusuke Doi

Masahiro Ishiyama

Yu Kaneko

Yasuyuki Nishibayashi

Takafumi Sakamoto

Tomonori Maegawa

Fumiaki Kanayama

Yoshihiro Oba

Toshiyuki Umeda

Keiichi Teramoto

Keisuke Mera

Shoji Otaka

Ren Sakata

Kotaro Ise

Hiroki Kudo

Satoshi Ozaki

Shirou Wakayama

Yuki Yonezawa

Ikuya Aoyama

Yumiko Sakai

Kenichi Maeda

Shinya Murai

Takeshi Ishihara

Koji Ogura

Yasuro Shobatake

Koichi Katagawa

Toshiyuki Nakanishi

Yoshiki Terashima

Noritaka Deguchi

Yuji Tohzaka

Nobuhiko Sugasawa

Yoichi Morishima

Takaomi Murakami

Yosuke Bando

Youyang Ng

Naoki Ando

Tomoro Yoshinaga

Yujen Lai

Tomoaki Kichimi

Cam Ly Nguyen

Takeshi Sakoda

Seisan Hoshimoto

Kouji Tada

Masahiro Yamazaki

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.

Communication apparatus, communication method, and computer program product

According to an embodiment, a wireless communication device includes a determiner, and an executor. The determiner is configured to determine whether the wireless communication device can continue operation by a stored electric power in which remaining capacity changes according to operation of the wireless communication device for a predetermined period, based on information including an operation timing associated with a cycle in which a management server. The executor is configured to execute an operation in which the data is transmitted and received between the other wireless communication device and the management server via the wireless communication device when the wireless communication device is able to continue the operation, and otherwise, cause the wireless communication device to move into intermittent operation and causes the other communication device to transmit the data to the management server not via the wireless communication device.

Wireless communication device and wireless communication system

According to one embodiment of the present invention, there is provided a communication device includes: processing circuitry configured to generate first bitmap data indicating a calculated value of a function based on identifiers of other first communication devices; and a communicator configured to transmit a first message including the first bitmap data.

Communication device, non-transitory computer readable medium and wireless communication system

According to one embodiment, a communication apparatus includes a congestion degree calculating unit and an operation mode setting unit. The congestion degree calculating unit calculates a third congestion degree related to wireless communication based on a first congestion degree of first wireless communication and a second congestion degree of second wireless communication. In the first wireless communication, peer-to-peer communication is performed directly between communication apparatuses, and in the second wireless communication, communication is performed through a wireless communication device. The operation mode setting unit switches an operation mode of the first wireless communication based on the third congestion degree to either of a mode in which the communication apparatus transmits content or a mode in which the communication apparatus receives content.

Communication apparatus and communication method

According to an embodiment of the present invention, a radio-apparatus-disposition estimation device includes a processor configured to execute a program to provide at least: a first acquirer, a second acquirer, and a calculator. The first acquirer acquires first information concerning communication among a respective plurality of radio apparatuses or radio waves transmitted and received among the respective plurality of radio apparatuses. The second acquirer acquires setting position candidates of the plurality of radio apparatuses. The calculator calculates, on the basis of the first information and the setting position candidates, one or a plurality of estimated patterns in which setting positions of the radio apparatuses are identified as different ones of the setting position candidates.

Device and method for determining disposition of a plurality of radio apparatuses

According to one embodiment, a control device in a power electronics device includes a controller, a configuration determiner and a manager. The controller performs control associated with power conversion, in accordance with a first logical configuration of control between the power electronics device and other power electronics device. The configuration determiner performs determination processing of a second logical configuration when a change condition of the first logical configuration is satisfied. The manager instructs the controller to perform the control in accordance with the second logical configuration, the manager performing management such that the controller performs the control in accordance with previously given control information for a period after the change condition of the first logical configuration is satisfied and until the manager instructs the controller to perform the control associated with the power conversion in accordance with the second logical configuration.

Power electronics device, control method, and non-transitory computer readable medium

There is a server apparatus in which: an issuing unit issues data to devices; a distribution manager distributes the data to devices; a data manager manages data set as issued; a revocation manager detects, from the data set, data that satisfies a condition, and invalidates the detected data; and a filter manager updates and distribute to devices a filter having a predetermined bit length each time data is invalidated, by setting one of a first value and a second value to each of bits in the filter when a revoked data set is projected onto the filter; the data manager identifies data other than the invalidated data, having projection onto at least one of bits whose value has changed between before and after the update, and having the first value for all of bits projected onto the updated filter and reissues data to the device having the identified data.

Server apparatus, communication system, and data issuing method

According to one embodiment, a memory stores a first information including a positional relationship among a plurality of positional candidates, a second information including an influence on the plurality of positional candidates due to at least any of an attenuation and a reflection of a radio wave by an object located at a periphery of the plurality of positional candidates, and a third information including a first received signal strength indicator of the radio wave transmitted from a first wireless communication device and received by a second wireless communication device. A processor estimates a position of the second wireless communication device from the plurality of positional candidates, based on a first value as the first received signal strength indicator corrected with a first correction value based on the second information, and a plurality of first distances between the first wireless communication device and each of the plurality of positional candidates.

Apparatus and method for estimating position of wireless communication device, and wireless communication system

An energy management device includes a measurement manager and a communicator. The measurement manager manages energy information based on a physical quantity measured from at least one measurement object belonging to each of a plurality of energy types in a customer. The communicator communicates the energy information of each of the energy types to another device over a network.

Energy management device, energy management system, and energy management method

A power-saving control apparatus includes a memory storing first to Nth different authentication codes, determines, every time a signal including an authentication code is received, whether the authentication code in the received signal is a valid code which matches one of the authentication codes in the memory, outputs an operation signal to a main apparatus when the authentication code in the received signal is determined to be the valid code, and generates a new authentication code, when (a) the number of times the authentication code in each received signal matches a first authentication code of the authentication codes in the memory is equal to a predetermined value or (b) the authentication code in the received signal matches a second or subsequent authentication code of the authentication codes in the memory, to delete one of the authentication codes in the memory, and to store the new authentication code in the memory.

Power saving control apparatus and method

A transmitting apparatus includes a first communicator, a designator, and a second communicator. The first communicator sends out a message by wireless broadcast communication to plural first communication apparatus, being located within a wireless communication range of the first communicator, of plural communication apparatus that have a wireless broadcast communication function and that constitute a wireless multi-hop network. The designator designates a second communication apparatus that is located outside the wireless communication range of the first communicator and that can establish a first communication channel, from among the plural communication apparatus having a the wireless broadcast communication function. The second communicator is wider in a communication range than the first communicator. The second communicator establishes the first communication channel with the second communication apparatus designated by the designator. The second communicator sends out the message over the established first communication channel.

Transmitting apparatus, receiving apparatus, managing apparatus, and computer readable medium

According to some embodiments, there is provided a power electronics device including: a controlling unit, a determining unit, a confirming unit and a determining unit. The controlling unit performs surveillance/control concerning an input/output of power to a power line with other power electronics devices connected via the power line. The determining unit determines a master device which is a subject of the surveillance/control and a slave device which is controlled by the master device, based on power characteristic information of the other power electronics devices from among the other power electronics devices and the power electronics device. The confirming unit confirms whether the master device and the slave device determined by the determining unit are matched with the master device and the slave device determined by the other power electronics devices. The determining unit permits a start of the surveillance/control when matching is determined by the confirming unit.

Power electronics device, communication device, cooperative control method and computer readable medium

According to an embodiment, a verification device includes an encoding rule generating unit, a test data generating unit, an error rule generating unit, a determined value generating unit, and a verifying unit. The encoding rule generating unit is configured to generate an encoding rule based on a definition document for a structured document. The test data generating unit is configured to generate test data in which all combinations of state transitions are expressed in bits in accordance with an encoding rule. The error rule generating unit is configured to add an error rule to the encoding rule. The determined value generating unit is configured to generate a determined value indicating whether a transition is normal. The verifying unit is configured to determine that a decoding device is not normal when the determined value and an output determined value resulting from inputting the test data to the decoding device are different.

Verification device, verification method and computer program product

An equipment set generation support apparatus (a) acquires, from a plurality of equipments connected to a network, state change event information notifying a state change of each equipment and an occurrence time and date of the state change, (b) sets a detection condition including a start time and an end time of a detection period, (c) selects state change event information whose occurrence time and date of the state change falling within the detection period from the state change event information acquired, and (d) detects, from the plurality of equipments, a set of equipments whose states change in the detection period and a set of state values after the state change of each equipment based on the state change event information selected.

Equipment set generation support apparatus and method

According to one embodiment, a control device communicates with a power measurement device. The control device includes a communication unit, a threshold storage, a calculation unit, and a control unit. The communication unit is configured to receive a usable electric power from the power measurement device. The threshold storage stores a first threshold. The calculation unit is configured to calculate a usable electric energy by integrating the usable electric power. The control unit is configured to change an operation status of the control device based on a comparison result between the usable electric energy and the first threshold.

Control device, a control method, and a non-transitory computer readable medium thereof

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Yokohama, Japan

Yusuke Doi