Patents by Inventor Keisuke Mera

Keisuke Mera has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9985754
    Abstract: An information processing apparatus comprises a first circuitry and a second circuitry. The first circuitry first/second demand response requests from first/second communication devices. The second circuitry creates first request content information representing contents of the first demand response request, sends it to a time-stamping authority, and acquires first time certification information containing a time stamp that the time-stamping authority issues for the first demand response request. The second circuitry stores the first time certification information in a storage device to be associates with the first demand response request; and determine, when the second demand response request is received, whether the second demand response request is retransmission of the first demand response request.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: May 29, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yu Kaneko, Tomonori Maegawa, Keisuke Mera, Masashi Ito
  • Patent number: 9787716
    Abstract: 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.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: October 10, 2017
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Keisuke Mera, Yusuke Doi, Takafumi Sakamoto, Toshiyuki Umeda, Shoji Otaka
  • Patent number: 9397916
    Abstract: According to one embodiment, a communication device includes a clock to measure time, communication circuitry and processing circuitry. The communication circuitry transmits a request signal to the other communication device in a certain cycle, and receives a response signal transmitted in response to the request signal, from the other communication device. The processing circuitry changes a transmission timing of the request signal; compares first round-trip delay time with second round-trip delay time; and if a result of comparison shows that the second round-trip delay time is shorter than the first round-trip delay time, adjusts the time measured by the clock using a transmission time point of the second request signal and the reception time point of the second request signal in the other communication device, and the transmission time point of the second response signal from the other communication device and a reception time point of the second response signal.
    Type: Grant
    Filed: August 24, 2015
    Date of Patent: July 19, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masashi Ito, Tomonori Maegawa, Keisuke Mera, Yu Kaneko
  • Publication number: 20160065435
    Abstract: According to one embodiment, a communication device includes a clock to measure time, communication circuitry and processing circuitry. The communication circuitry transmits a request signal to the other communication device in a certain cycle, and receives a response signal transmitted in response to the request signal, from the other communication device. The processing circuitry changes a transmission timing of the request signal; compares first round-trip delay time with second round-trip delay time; and if a result of comparison shows that the second round-trip delay time is shorter than the first round-trip delay time, adjusts the time measured by the clock using a transmission time point of the second request signal and the reception time point of the second request signal in the other communication device, and the transmission time point of the second response signal from the other communication device and a reception time point of the second response signal.
    Type: Application
    Filed: August 24, 2015
    Publication date: March 3, 2016
    Inventors: Masashi ITO, Tomonori MAEGAWA, Keisuke MERA, Yu KANEKO
  • Publication number: 20160056925
    Abstract: An information processing apparatus comprises a first circuitry and a second circuitry. The first circuitry first/second demand response requests from first/second communication devices. The second circuitry creates first request content information representing contents of the first demand response request, sends it to a time-stamping authority, and acquires first time certification information containing a time stamp that the time-stamping authority issues for the first demand response request. The second circuitry stores the first time certification information in a storage device to be associates with the first demand response request; and determine, when the second demand response request is received, whether the second demand response request is retransmission of the first demand response request.
    Type: Application
    Filed: August 24, 2015
    Publication date: February 25, 2016
    Inventors: Yu KANEKO, Tomonori MAEGAWA, Keisuke MERA, Masashi ITO
  • Patent number: 8984169
    Abstract: There is provided a data collecting device configured to collect data from a plurality of nodes. An inquiry transmitting unit transmits inquiry messages to request transmission of the data to the nodes, respectively. A response receiving unit receives response messages including the data from the nodes, respectively. A reception scheduler generates a reception schedule of the response messages from the nodes based on request information indicating data collection condition from the nodes. A transmission scheduler generates a transmission schedule of the inquiry messages based on the reception schedule and characteristics of communication with the nodes. The inquiry transmitting unit transmits the inquiry messages to the nodes, respectively, based on the transmission schedule.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: March 17, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keisuke Mera, Shigeo Matsuzawa, Tomonori Maegawa, Yu Kaneko, Toshio Ito
  • Publication number: 20150066812
    Abstract: There is provided a system including a reference consumption calculator and a load shift determining unit. The calculator calculates a reference consumption being a statistic for an energy consumption based on a history of the energy consumption of a demander. The determining unit determines whether or not load shift was performed based on and the reference consumption and a target energy consumption being the energy consumption in a period including a target time period in the history of the energy consumption, the load shift including at least one of a first operation and a second operation by the demander. The first operation is to charge energy in an energy accumulating device. The second operation is to shift an energy consumption operation to be made in a time period other than the target time period so as to be made in the target time period.
    Type: Application
    Filed: July 30, 2014
    Publication date: March 5, 2015
    Inventors: Keisuke MERA, Shigeo MATSUZAWA
  • Patent number: 8725962
    Abstract: A main memory data rewriting device includes a rewrite condition analysis unit configured to analyze a rewrite condition for target data in main memory data stored in a main memory before deactivation of an information processing device, and create a first processing content to acquire environment data substituting the target data from outside of the information processing device and a second processing content to rewrite the target data to the environment data, an environment data processing unit configured to acquire the environment data according to the first processing content when the information processing device is temporarily activated at an activation time set to rewrite the target data during a deactivating period of the information processing device, and a rewrite processing unit configured to rewrite a region of a nonvolatile storage medium in which the target data is stored with the environment data according to the second processing content.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keisuke Mera, Takeshi Ishihara, Nobuhiko Sugasawa
  • Patent number: 8588247
    Abstract: A relay device is provided that includes a reception unit and a transmission unit. The reception unit receives a startup packet including a magic packet, a MAC address of controllable equipment, and a first ID for starting up the controllable equipment. The transmission unit transmits a first electric signal indicating the first ID to all link-downed Ethernet ports.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: November 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yu Kaneko, Masahiro Ishiyama, Takeshi Ishihara, Yusuke Doi, Nobuhiko Sugasawa, Keisuke Mera, Koji Ogura
  • Patent number: 8588118
    Abstract: A wireless communication device includes: a packet detection part detecting presence/absence of a reception of a packet; a judgment part judging whether or not temporal change of presence/absence of the reception of the packet detected in the packet detection part corresponds to a predetermined identifier; and a power source control unit controlling power supply from a power source based on a result of a judgment in the judgment part.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: November 19, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takafumi Sakamoto, Kiyoshi Toshimitsu, Toshiyuki Umeda, Shoji Otaka, Keisuke Mera
  • Patent number: 8452892
    Abstract: According to one embodiment, a scheduling apparatus sends queries to communication modules in buildings and receives facility information measured at monitor-control points from the communication modules. As for each communication module, a network address, a waiting time to receive the facility information after sending a query, and a connection with the monitor-control points, are stored. When a service request indicating at least one monitor-control point is received, queries each including the network address of a communication module connected with a monitor-control point indicated by the service request, are generated. A priority of each query is decided based on the waiting time corresponding to the communication module. Each query is added to a first send queue or a second send queue based on the priority. When queries are sent, a timing to send from the first send queue is same as or earlier than a timing to send from the second send queue.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: May 28, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomonori Maegawa, Keisuke Mera, Shigeo Matsuzawa, Koichi Ikeda, Nobutaka Nishimura
  • Patent number: 8407470
    Abstract: A control device being a control device communicating with a controlled device to control the controlled device includes: a first memory to store first authentication information for authenticating the controlled device; a second memory to store second authentication information for making the controlled device authenticate itself; a determination unit to compare third authentication information sent from the controlled device for specifying the controlled device with the first authentication information; a calculator to perform calculation processing on the first authentication information or the third authentication information using the second authentication information to generate a calculated value; a transmitter to transmit, when the determination unit determines that the first authentication information and the third authentication information are the same, the calculated value to the controlled device; and a memory controller to update the first authentication information.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: March 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshiyuki Nakanishi, Takafumi Sakamoto, Keisuke Mera, Toshiyuki Umeda, Shoji Otaka, Yusuke Doi
  • Patent number: 8327160
    Abstract: In a remote controller, a startup time or a first time duration until the startup time is input into an input unit. A timer unit counts a clock time or a second time duration. A control unit generates a signal to turn on an electrical apparatus when the second time duration reaches the first time duration, or when the clock time equals to the startup time. A transmitting unit transmits the signal. In the electrical apparatus, a main unit operates main function. A transformer supplies electricity from an external power source to the main unit through a switch. A rectifier rectifies the signal. A signal identifying unit identifies it. A reservation memory unit keeps parameter for main function. A control unit turns on the switch and controls the main unit according to the parameter when the signal is received. A battery supplies electricity to above units.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: December 4, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takafumi Sakamoto, Toshiyuki Nakanishi, Makoto Tsuruta, Keisuke Mera, Toshiyuki Umeda, Shoji Otaka
  • Patent number: 8271767
    Abstract: An HW arithmetic unit executes a predetermined arithmetic operation. An arithmetic-mode determining unit determines, based on an attribute or a content of data relating to processing that has requested the arithmetic operation, either a synchronous mode that executes the processing after waiting for completion of the arithmetic operation by an arithmetic circuit or an asynchronous mode that executes the processing without waiting for completion of the arithmetic operation by the arithmetic circuit, as an execution mode of the arithmetic operation. An arithmetic-process control unit controls the arithmetic operation by the arithmetic circuit according to the determined execution mode.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 18, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keisuke Mera, Takeshi Ishihara, Yasuhiro Fukuju
  • Patent number: 8249644
    Abstract: In a wireless terminal having a wireless transceiver and a wireless receiver which operates with lower power than the wireless transceiver, when the wireless receiver receives, from a base station, a notification message notifying that data addressed to the terminal is existent, the wireless transceiver is turned on to acquire the data.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: August 21, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kenichi Taniuchi, Kotaro Ise, Yasuro Shobatake, Takafumi Sakamoto, Nobuhiko Sugasawa, Keisuke Mera, Takeshi Ishihara
  • Publication number: 20120185560
    Abstract: There is provided a data collecting device configured to collect data from a plurality of nodes. An inquiry transmitting unit transmits inquiry messages to request transmission of the data to the nodes, respectively. A response receiving unit receives response messages including the data from the nodes, respectively. A reception scheduler generates a reception schedule of the response messages from the nodes based on request information indicating data collection condition from the nodes. A transmission scheduler generates a transmission schedule of the inquiry messages based on the reception schedule and characteristics of communication with the nodes. The inquiry transmitting unit transmits the inquiry messages to the nodes, respectively, based on the transmission schedule.
    Type: Application
    Filed: December 6, 2011
    Publication date: July 19, 2012
    Inventors: Keisuke MERA, Shigeo MATSUZAWA, Tomonori MAEGAWA, Yu KANEKO, Toshio ITO
  • Patent number: 8149722
    Abstract: A VPN (Virtual Private Network) communication detecting apparatus connecting to an internal network for detecting a VPN node on an external network which connects to the internal network through a relay apparatus, transmits response request packet to test target node, receives response packet from the test target node in response to the response request packet, measures response time which is from first time point when the response request packet is transmitted to second time point when the response packet is received, and determines whether the test target node is the VPN node, based on correlation between the response time and delay time inserted by the relay apparatus when test target packet pass through the relay apparatus, the test target packet, if the test target node is the other of the VPN nodes, including the response request packet or the response packet.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: April 3, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Keisuke Mera, Naoki Esaka, Shigeo Matsuzawa
  • Publication number: 20120011356
    Abstract: According to one embodiment, a communication device to be connected with an external device via a network includes a connection unit, a variable resistance unit, and a control unit. The connection unit is connected to the network. The variable resistance unit is connected to the connection unit such that a resistance value is detectable from the external device, the resistance value being variable. The control unit changes the resistance value according to an operation state.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 12, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takeshi ISHIHARA, Nobuhiko Sugasawa, Kenichi Taniuchi, Keisuke Mera, Yu Kaneko
  • Publication number: 20110066758
    Abstract: According to one embodiment, a scheduling apparatus sends queries to communication modules in buildings and receives facility information measured at monitor-control points from the communication modules. As for each communication module, a network address, a waiting time to receive the facility information after sending a query, and a connection with the monitor-control points, are stored. When a service request indicating at least one monitor-control point is received, queries each including the network address of a communication module connected with a monitor-control point indicated by the service request, are generated. A priority of each query is decided based on the waiting time corresponding to the communication module. Each query is added to a first send queue or a second send queue based on the priority. When queries are sent, a timing to send from the first send queue is same as or earlier than a timing to send from the second send queue.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 17, 2011
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomonori Maegawa, Keisuke Mera, Shigeo Matsuzawa, Koichi Ikeda, Nobutaka Nishimura
  • Publication number: 20100250752
    Abstract: A communication apparatus, comprising has a generator which generates format information of a start instruction message, a memory which stores the format information, a communication unit which transmits the format information and receives a start instruction message via a network, and a controller which detects whether or not the received start instruction message corresponds to the format information stored in the memory, and performs start processing and initialization processing based on a content of the start instruction message when the received start instruction message corresponds to the format information.
    Type: Application
    Filed: September 17, 2009
    Publication date: September 30, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takeshi ISHIHARA, Nobuhiko Sugasawa, Kensaku Yamaguchi, Keisuke Mera, Yuichiro Oyama