Patents by Inventor Tomoko Adachi

Tomoko Adachi 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).

  • Publication number: 20210274447
    Abstract: A wireless communication apparatus supports a first scheme and a second scheme. A communication range for the second scheme is narrower than a communication range for the first scheme. Processing circuitry of the apparatus is configured to set first information and second information. If the second scheme is used, the processing circuitry sets a second level greater than a first level for the second information and sets a second power value smaller than a first power value for the first information. The first level and the first power value are used for the first scheme. The second power value is decided based on a receiving sensitivity required for a physical scheme selected by the second scheme.
    Type: Application
    Filed: May 14, 2021
    Publication date: September 2, 2021
    Applicant: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPOR
    Inventors: Tomoko ADACHI, Koichiro BAN, Tomoya TANDAI, Hideo KASAMI
  • Publication number: 20210266878
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Application
    Filed: May 3, 2021
    Publication date: August 26, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Tomoko ADACHI
  • Publication number: 20210227541
    Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive from each of a plurality of other wireless communication devices first information specifying at least one communication resource requested to be allocated; and a transmitter configured to transmit second information specifying at least one communication resource allocated to each of the other wireless communication devices based on the first information. The transmitter is configured to transmit signals via the communication resources specified in the second information and the receiver is configured to receive signals via the communication resources specified in the second information.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko MATSUO, Tomoko ADACHI
  • Publication number: 20210219307
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including information to specify a plurality of frequency components; and controlling circuitry configured to determine whether a second frame is received via each of the plurality of frequency components. The transmitter is configured to transmit a third frame including first information concerning a first value range which is used to determine whether to respond to the first frame, the first value range being dependent on a number of frequency components via which the second frame has been received.
    Type: Application
    Filed: March 26, 2021
    Publication date: July 15, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko ADACHI, Ryoko MATSUO
  • Publication number: 20210219294
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame notifying a start of resource unit-based OFDMA (Orthogonal Frequency Division Multiple Access) communication via a first channel; and controlling circuitry configured to control, when the first frame is received, the receiver to perform standby operation at least in a first resource unit in a second channel different from the first channel, wherein the first resource unit includes one or more subcarriers among a plurality of subcarriers disposed in the second channel.
    Type: Application
    Filed: March 31, 2021
    Publication date: July 15, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko MATSUO, Tomoko ADACHI, Tomoya TANDAI
  • Patent number: 11064526
    Abstract: An electronic apparatus includes processing circuitry configured to select a first interval to be used for an access to a medium when a first condition is satisfied. The first interval has a fixed length shorter than DIFS (distribute coordination function inter frame space) defined in IEEE802.11 standard. The processing circuitry is also configured to select a second interval to be used for the access to the medium when a second condition different from the first condition is satisfied. The second interval has a fixed length equal to or longer than the DIFS defined in the IEEE802.11 standard. The electronic apparatus also includes wireless circuitry configured to access the medium to transmit a radio wave conforming to a first wireless specification different from the IEEE802.11 standard after the medium is idle for the selected first or second interval.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: July 13, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Adachi, Ryoko Matsuo, Tomoya Tandai, Takeshi Tomizawa
  • Publication number: 20210204249
    Abstract: According to one embodiment, a wireless device includes a transmitter; and a receiver. The transmitter is configured to transmit a first frame including information that designates a plurality of frequency components and instructing execution of frequency multiplexing transmission by a plurality of wireless communication terminals; and the receiver is configured to receive the second frame by at least one frequency component of the plurality of frequency components. The first frame has either a first form or a second form, the first form designates individual terminal identifiers of the plurality of wireless communication terminals, the terminal identifiers each being associated with at least one of the plurality of frequency components, and the second form designates a group identifier of a group to which the plurality of wireless communication terminals belong.
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tomoko ADACHI
  • Patent number: 11032810
    Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to change a value of a first parameter in accordance with a history of uplink multi-user transmission or whether capability of uplink multi-user transmission is in an enabled or disabled state, the first parameter defining an upper limit of duration during which a wireless medium is allowed to be occupied; and a transmitter configured to transmit a first frame.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 8, 2021
    Assignee: KABUSHIKIKAISHA TOSHIBA
    Inventors: Narendar Madhavan, Tomoko Adachi
  • Patent number: 11012951
    Abstract: A wireless communication apparatus supports a first scheme and a second scheme. A communication range for the second scheme is narrower than a communication range for the first scheme. Processing circuitry of the apparatus is configured to set first information and second information. If the second scheme is used, the processing circuitry sets a second level greater than a first level for the second information and sets a second power value smaller than a first power value for the first information. The first level and the first power value are used for the first scheme. The second power value is decided based on a receiving sensitivity required for a physical scheme selected by the second scheme.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: May 18, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Adachi, Koichiro Ban, Tomoya Tandai, Hideo Kasami
  • Publication number: 20210112567
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first field containing information to identify a plurality of wireless communication terminals, and configured to multiplex and transmit a plurality of second fields in each of which a first frame containing an address of any of the wireless communication terminals is set; and a controller configured to determine, for the first frames, values pertaining to lengths of durations to suppress access to a wireless medium to the wireless communication terminal having an address different from the address contained in each of the first frames. The transmitter is configured to set the values in the first frames, the second fields, or the first field. The controller is configured to determine the values so that the durations have an end at an identical time.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko ADACHI, Ryoko MATSUO, Tomoya TANDAI, Hiroki MORI, Kentaro TANIGUCHI
  • Patent number: 10980024
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a first frame notifying a start of resource unit-based OFDMA (Orthogonal Frequency Division Multiple Access) communication via a first channel; and controlling circuitry configured to control, when the first frame is received, the receiver to perform standby operation at least in a first resource unit in a second channel different from the first channel, wherein the first resource unit includes one or more subcarriers among a plurality of subcarriers disposed in the second channel.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: April 13, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko Matsuo, Tomoko Adachi, Tomoya Tandai
  • Patent number: 10966214
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including information to specify a plurality of frequency components; and controlling circuitry configured to determine whether a second frame is received via each of the plurality of frequency components. The transmitter is configured to transmit a third frame including first information concerning a first value range which is used to determine whether to respond to the first frame, the first value range being dependent on a number of frequency components via which the second frame has been received.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: March 30, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Adachi, Ryoko Matsuo
  • Patent number: 10966180
    Abstract: According to one embodiment, a wireless device includes a transmitter; and a receiver. The transmitter is configured to transmit a first frame including information that designates a plurality of frequency components and instructing execution of frequency multiplexing transmission by a plurality of wireless communication terminals; and the receiver is configured to receive the second frame by at least one frequency component of the plurality of frequency components. The first frame has either a first form or a second form, the first form designates individual terminal identifiers of the plurality of wireless communication terminals, the terminal identifiers each being associated with at least one of the plurality of frequency components, and the second form designates a group identifier of a group to which the plurality of wireless communication terminals belong.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: March 30, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tomoko Adachi
  • Publication number: 20210037349
    Abstract: According to one embodiment, a wireless communication device, includes: a receiver configured to receive a first frame a transmitter address of which is an address of a first wireless communication device and a receiver address of which is an address of the wireless communication device; and a transmitter configured to transmit a second frame generated using a first address process in response to receipt of the first frame. The first address process is a process to set a first value in a first region in a receiver address field of the second frame. The first value is a value different from values settable in first regions in addresses of the first wireless communication device and another wireless communication device capable of receiving the second frame.
    Type: Application
    Filed: October 20, 2020
    Publication date: February 4, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tomoko ADACHI
  • Patent number: 10910881
    Abstract: According to one embodiment, an electronic apparatus includes a signal detector and processor circuitry. The signal detector is configured to detect communication information based on a wireless signal. The processor circuitry is configured to determine at least one of (1) a first period to wait from a timing of when power transmission is ended to a timing of when power transmission is started, (2) a second period to wait from a timing of when the wireless signal is not detected to a timing of when power transmission is started, and (3) a third period for continuously performing power transmission. The processor circuitry is configured to transmit a power with electromagnetic wave according to at least one of the first period, the second period, and the third period.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Taniguchi, Tomoko Adachi
  • Patent number: 10911185
    Abstract: A wireless communication device includes a receiver and a transmitter. The receiver is configured to receive a plurality of first frames. The plurality of first frames are multiplexed and transmitted. The transmitter is configured to multiplex and transmit a second frame and a third frame. The second frame includes acknowledgement responses that indicate reception success or failure for at least two of the plurality of first frames.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: February 2, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko Matsuo, Tomoko Adachi
  • Patent number: 10887895
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first field containing information to identify a plurality of wireless communication terminals, and configured to multiplex and transmit a plurality of second fields in each of which a first frame containing an address of any of the wireless communication terminals is set; and a controller configured to determine, for the first frames, values pertaining to lengths of durations to suppress access to a wireless medium to the wireless communication terminal having an address different from the address contained in each of the first frames. The transmitter is configured to set the values in the first frames, the second fields, or the first field. The controller is configured to determine the values so that the durations have an end at an identical time.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: January 5, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko Adachi, Ryoko Matsuo, Tomoya Tandai, Hiroki Mori, Kentaro Taniguchi
  • Publication number: 20200351830
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit first information specifying at least one communication resource requested to be allocated; and a receiver configured to receive second information specifying at least one communication resource allocated depending on the first information.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Ryoko MATSUO, Tomoko ADACHI
  • Patent number: 10827313
    Abstract: According to one embodiment, a wireless communication device, includes: a receiver configured to receive a first frame a transmitter address of which is an address of a first wireless communication device and a receiver address of which is an address of the wireless communication device; and a transmitter configured to transmit a second frame generated using a first address process in response to receipt of the first frame. The first address process is a process to set a first value in a first region in a receiver address field of the second frame. The first value is a value different from values settable in first regions in addresses of the first wireless communication device and another wireless communication device capable of receiving the second frame.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: November 3, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventor: Tomoko Adachi
  • Publication number: 20200334934
    Abstract: According to one embodiment, when a control unit is notified of information in at least one second signal received by one of first and second wireless communication units after the control unit provides the second wireless communication unit with a command to transmit a first signal containing first address information and before a waiting time elapses and when the at least one second signal contains second address information assigned to an authentication apparatus having received the first signal, then the control unit provides the first wireless communication unit with a command to transmit a third signal for a connection request with the second address information set in a destination address.
    Type: Application
    Filed: July 6, 2020
    Publication date: October 22, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tomoko ADACHI, Seiichiro HORIKAWA, Koji AKITA, Ryoko MATSUO