Patents by Inventor Takaomi Murakami

Takaomi Murakami 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: 10772006
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame which contains data; and a transmitter configured to transmit a second frame and a third frame by frequency multiplexing, the third frame containing the data and being addressed to a first relay station different from a sender device of the first frame. The second frame is a frame to instruct the sender device of the first frame to perform a frame transmission.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: September 8, 2020
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONICS DEVICES & STORAGE CORPORATION
    Inventors: Ryoko Matsuo, Takaomi Murakami
  • Publication number: 20200221334
    Abstract: An electronic apparatus includes processing circuitry functioning as an acquisition part and a change part, and includes communication circuitry. The acquisition part acquires a control command regarding the volume of traffic per unit time. The change part changes a communication parameter to reduce the volume of traffic per unit time in accordance with the control command. The communication circuitry performs multi-hop wireless communications with the volume of traffic according to the changed communication parameter.
    Type: Application
    Filed: August 26, 2019
    Publication date: July 9, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventor: Takaomi MURAKAMI
  • Publication number: 20200178154
    Abstract: According to an embodiment, an electronic apparatus includes communication circuitry and processing circuitry. The communication circuitry is configured to transmit a first packet to a first next hop and transmit a second packet to a second next hop in accordance with communication control information. The processing circuitry is configured to measure first information on the first packet transmitted to the first next hop, measure second information on the second packet transmitted to the second next hop, determine whether to change the communication control information based on both the first information and the second information, and change the communication control information if it is determined to change the communication control information.
    Type: Application
    Filed: September 6, 2019
    Publication date: June 4, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Takaomi MURAKAMI
  • Patent number: 10396886
    Abstract: According to an embodiment, a relay device includes a reception unit, a collection unit, a determination unit, a rewriting unit, and a transmission unit. The reception unit is configured to receive a wireless frame transmitted between a plurality of communication devices. The collection unit is configured to collect configuration information indicating a configuration of a wireless multi-hop network from the communication devices. The determination unit is configured to determine whether to relay the wireless frame on the basis of the configuration information. the rewriting unit is configured to rewrite a transmission destination address of the wireless frame to an address of the communication device of a relay destination specified on the basis of the configuration information and rewrite a transmission source address of the wireless frame to an address of the own device. The transmission unit is configured to transmit the wireless frame rewritten by the rewriting unit.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: August 27, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaomi Murakami, Takuya Kawamura
  • Patent number: 10187818
    Abstract: 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.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 22, 2019
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yosuke Bando, Yujen Lai, Youyang Ng, Kenichi Maeda, Takeshi Sakoda, Takaomi Murakami, Yusuke Doi, Masahiro Ishiyama
  • Patent number: 10103973
    Abstract: A communication device according to an embodiment is included in a multi-hop network. The communication device includes a holder, a storage, a switcher, and a controller. The holder holds communication data. The storage stores path information including an identifier that identifies a communication path and destination information that indicates a destination of communication data on the communication path. The switcher switches a communication path used to transmit communication data on the basis of the path information stored in the storage. The controller transmits communication data to a destination of a communication path switched by the switcher.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 16, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaomi Murakami, Yoshihiro Oba, Ren Sakata, Hiroki Kudo, Jumpei Ogawa
  • Publication number: 20180279171
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame which contains data; and a transmitter configured to transmit a second frame and a third frame by frequency multiplexing, the third frame containing the data and being addressed to a first relay station different from a sender device of the first frame. The second frame is a frame to instruct the sender device of the first frame to perform a frame transmission.
    Type: Application
    Filed: March 13, 2018
    Publication date: September 27, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventors: Ryoko MATSUO, Takaomi MURAKAMI
  • Publication number: 20180145743
    Abstract: According to an embodiment, a relay device includes a reception unit, a collection unit, a determination unit, a rewriting unit, and a transmission unit. The reception unit is configured to receive a wireless frame transmitted between a plurality of communication devices. The collection unit is configured to collect configuration information indicating a configuration of a wireless multi-hop network from the communication devices. The determination unit is configured to determine whether to relay the wireless frame on the basis of the configuration information. the rewriting unit is configured to rewrite a transmission destination address of the wireless frame to an address of the communication device of a relay destination specified on the basis of the configuration information and rewrite a transmission source address of the wireless frame to an address of the own device. The transmission unit is configured to transmit the wireless frame rewritten by the rewriting unit.
    Type: Application
    Filed: July 31, 2017
    Publication date: May 24, 2018
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Takaomi MURAKAMI, Takuya KAWAMURA
  • Patent number: 9730142
    Abstract: A wireless communication device transmits data to a relay destination being one of first relaying devices capable of communicating out of relaying devices; obtains first information, from each first relaying device, that indicates a representative value of remaining operating times of relaying devices present on a relay route from the first relaying device to a target device; determines to perform a new route search, based on the first information; increases a transmission power; then transmits a request; receive responses from all or a part of second relaying devices, which are relaying devices that have received the request, including pieces of second information each of which indicates a representative value of remaining operating times of relaying devices present on a relay route from the second relaying device to the target device; and selects a relay destination of data from among the second relaying devices based on the pieces of second information.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: August 8, 2017
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takaomi Murakami, Shinya Murai, Takeshi Ishihara, Ren Sakata, Cam Ly Nguyen, Tatsuma Hirano, Toshiyuki Nakanishi, Keiji Yamamoto
  • Publication number: 20170111819
    Abstract: 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.
    Type: Application
    Filed: March 1, 2016
    Publication date: April 20, 2017
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Yosuke BANDO, Yujen LAI, Youyang NG, Kenichi MAEDA, Takeshi SAKODA, Takaomi MURAKAMI, Yusuke DOI, Masahiro ISHIYAMA
  • Patent number: 9291698
    Abstract: According to an embodiment, a wireless communication device includes a detector to detect a mobile object by referring to sensing information; a first communicating unit to communicate mobile object information, which is related to a detection result of the mobile object, with another wireless communication device; a first calculator to calculate a moving path of the mobile object between wireless communication devices by referring to the detection result of the mobile object and mobile object information received from the other wireless communication device; a second communicating unit to communicate movement information, which is related to the moving path of the mobile object, with the other wireless communication device; and a second calculator to calculate distances between wireless communication devices that are dependent on the number of times of movement in the moving path by referring to the calculated moving path and movement information received from the other wireless communication device.
    Type: Grant
    Filed: November 7, 2013
    Date of Patent: March 22, 2016
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tomoki Watanabe, Tatsuo Kozakaya, Ryuzo Okada, Yoshihiro Oba, Mitsuru Kanda, Seijiro Yoneyama, Yasuyuki Tanaka, Takaomi Murakami
  • Publication number: 20150381473
    Abstract: A communication device according to an embodiment is included in a multi-hop network. The communication device includes a holder, a storage, a switcher, and a controller. The holder holds communication data. The storage stores path information including an identifier that identifies a communication path and destination information that indicates a destination of communication data on the communication path. The switcher switches a communication path used to transmit communication data on the basis of the path information stored in the storage. The controller transmits communication data to a destination of a communication path switched by the switcher.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 31, 2015
    Inventors: Takaomi MURAKAMI, Yoshihiro OBA, Ren SAKATA, Hiroki KUDO, Jumpei OGAWA
  • Patent number: 9054890
    Abstract: According to an embodiment, a communication apparatus controls controllable nodes. The apparatus includes an acquisition unit and a generation unit. The acquisition unit acquires at least one of a first evaluation value indicating an occurrence frequency of a control request to a target controllable node and a second evaluation value indicating an occurrence frequency of communication error at the target controllable node. The generation unit generates identification information to be assigned to control the target controllable node in a manner such that a bit length of the identification information becomes shorter as at least one of the first evaluation value and the second evaluation value increases.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: June 9, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshimichi Tanizawa, Kotaro Ise, Eiji Kamagata, Tsuyoshi Kogawa, Takeshi Ishihara, Yuichiro Oyama, Takaomi Murakami
  • Patent number: 9024728
    Abstract: A remote activating device remotely activates a device to be activated connected to a first network and a second network. The remote activating device includes a first interface connected to the first network, a second interface connected to the second network, an arrival confirmation processing unit that transmits an arrival attribute confirmation signal to the device to be activated using the first interface and confirms whether or not the arrival attribute confirmation signal has arrived at the device to be activated, and a judging unit that decides the first interface as an activation signal transmitting interface when the arrival attribute confirmation signal has arrived at the device to be activated and decides the second interface as the activation signal transmitting interface when the arrival attribute confirmation signal has not arrived at the device to be activated.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: May 5, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takeshi Ishihara, Kotaro Ise, Yuichiro Oyama, Takaomi Murakami, Naohisa Shibuya, Eiji Kamagata
  • Publication number: 20140323037
    Abstract: A wireless communication device transmits data to a relay destination being one of first relaying devices capable of communicating out of relaying devices; obtains first information, from each first relaying device, that indicates a representative value of remaining operating times of relaying devices present on a relay route from the first relaying device to a target device; determines to perform a new route search, based on the first information; increases a transmission power; then transmits a request; receive responses from all or a part of second relaying devices, which are relaying devices that have received the request, including pieces of second information each of which indicates a representative value of remaining operating times of relaying devices present on a relay route from the second relaying device to the target device; and selects a relay destination of data from among the second relaying devices based on the pieces of second information.
    Type: Application
    Filed: February 28, 2014
    Publication date: October 30, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaomi MURAKAMI, Shinya MURAI, Takeshi ISHIHARA, Ren SAKATA, Cam Ly NGUYEN, Tatsuma HIRANO, Toshiyuki NAKANISHI, Keiji YAMAMOTO
  • Patent number: 8782448
    Abstract: According to one embodiment, a communication device includes a start-up signal reception unit that receives a start-up signal that a start node transmits for starting up a node to be started; a first interface connected to Ethernet; a second interface connected to Ethernet; a power reception unit that receives PoE power through the first interface; a PoE controller that receives the start-up signal and PoE power and gives a transmission instruction of a start-up power signal which is a PoE power signal having a signal pattern corresponding to the start-up signal; and a power transmission unit that receives the transmission instruction from the PoE controller and transmits the start-up power signal through the second interface.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: July 15, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yoshimichi Tanizawa, Takeshi Ishihara, Kotaro Ise, Eiji Kamagata, Yuichiro Oyama, Takaomi Murakami
  • Publication number: 20140141823
    Abstract: According to an embodiment, a communication device includes an analyzer, a switching unit and a communication unit. The analyzer is configured to analyze an image taken at a periphery of the communication device. The switching unit is configured to switch a communication counterpart from a first communication device to a second communication device based on an analysis result of the image. The communication unit is configured to communicate with the second communication device after switching.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 22, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tatsuo Kozakaya, Tomoki Watanabe, Ryuzo Okada, Yoshihiro Oba, Mitsuru Kanda, Yasuyuki Tanaka, Takaomi Murakami, Seijiro Yoneyama
  • Publication number: 20140139663
    Abstract: According to an embodiment, a wireless communication device includes a detector to detect a mobile object by referring to sensing information; a first communicating unit to communicate mobile object information, which is related to a detection result of the mobile object, with another wireless communication device; a first calculator to calculate a moving path of the mobile object between wireless communication devices by referring to the detection result of the mobile object and mobile object information received from the other wireless communication device; a second communicating unit to communicate movement information, which is related to the moving path of the mobile object, with the other wireless communication device; and a second calculator to calculate distances between wireless communication devices that are dependent on the number of times of movement in the moving path by referring to the calculated moving path and movement information received from the other wireless communication device.
    Type: Application
    Filed: November 7, 2013
    Publication date: May 22, 2014
    Applicant: KABUSHIKI KAISHA TOHSIBA
    Inventors: Tomoki Watanabe, Tatsuo Kozakaya, Ryuzo Okada, Yoshihiro Oba, Mitsuru Kanda, Seijiro Yoneyama, Yasuyuki Tanaka, Takaomi Murakami
  • Publication number: 20140139690
    Abstract: An information processing apparatus has a communication part, a message receiving part, a network-information acquiring part, a peripheral-apparatus information managing part, a task accepting part, a task allocating part, a task processing part, a process-related information generating part, and a message transmitting part configured to generate a message that includes the process-related information and transmit the message including the process-related information to the other communication apparatuses via the communication part and the network.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuyuki TANAKA, Yoshihiro OBA, Mitsuru KANDA, Seijiro YONEYAMA, Takaomi MURAKAMI, Tatsuo KOZAKAYA, Ryuzo OKADA, Tomoki WATANABE
  • Publication number: 20120242461
    Abstract: According to an embodiment, a communication apparatus controls controllable nodes. The apparatus includes an acquisition unit and a generation unit. The acquisition unit acquires at least one of a first evaluation value indicating an occurrence frequency of a control request to a target controllable node and a second evaluation value indicating an occurrence frequency of communication error at the target controllable node. The generation unit generates identification information to be assigned to control the target controllable node in a manner such that a bit length of the identification information becomes shorter as at least one of the first evaluation value and the second evaluation value increases.
    Type: Application
    Filed: March 23, 2012
    Publication date: September 27, 2012
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yoshimichi TANIZAWA, Kotaro ISE, Eiji KAMAGATA, Tsuyoshi KOGAWA, Takeshi ISHIHARA, Yuichiro OYAMA, Takaomi MURAKAMI