Patents by Inventor Toshihisa Nabetani

Toshihisa Nabetani 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: 11108399
    Abstract: According to one embodiment, a wireless communication apparatus includes receiver circuitry and transmitter circuitry. The receiver circuitry is configured to receive a first frame addressed to another apparatus, the first frame being transmitted by a first wireless communication apparatus, and estimate a difference between an oscillation frequency of an oscillator of the first wireless communication apparatus and an oscillation frequency of an oscillator of the wireless communication apparatus based on the first frame. The transmitter circuitry is configured to transmit a third frame at a frequency determined based on the difference during a period at least partially overlapping a period during which the first wireless communication apparatus transmits a second frame addressed to a second wireless communication apparatus.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: August 31, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro Sekiya, Toshihisa Nabetani
  • Publication number: 20210226746
    Abstract: According to one embodiment, a wireless communication apparatus includes transmitter circuitry, receiver circuitry and processing circuitry. The processing circuitry is configured to determine, based on a first acknowledgement frame and a second acknowledgement frame, a first data frame received by a first wireless communication apparatus and not received by a second wireless communication apparatus among data frames. The processing circuitry is configured to determine that the transmitter circuitry transmits at least one of the first data frame and a second data frame to the second wireless communication apparatus, and the first wireless communication apparatus transmits the first data frame to the second wireless communication apparatus.
    Type: Application
    Filed: September 10, 2020
    Publication date: July 22, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro SEKIYA, Toshihisa NABETANI, Tatsuma HIRANO, Toshio ARIGA
  • Publication number: 20210127441
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter. The transmitter transmits data to be transmitted to a third wireless communication apparatus and a first wireless signal to instruct transmission of the data to the third wireless communication apparatus, to the first and second wireless communication apparatuses. The transmitter transmits, if any second wireless signal transmitted from the first or second wireless communication apparatuses is not detected within a first period after transmission of the first wireless signal, a third wireless signal to instruct transmission of the data to the third wireless communication apparatus to the first and second wireless communication apparatuses in order to instruct retransmission of the data.
    Type: Application
    Filed: September 1, 2020
    Publication date: April 29, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tatsuma HIRANO, Toshio ARIGA, Masahiro SEKIYA, Toshihisa NABETANI
  • Publication number: 20210111728
    Abstract: According to one embodiment, a wireless communication apparatus includes receiver circuitry and transmitter circuitry. The receiver circuitry is configured to receive a first frame addressed to another apparatus, the first frame being transmitted by a first wireless communication apparatus, and estimate a difference between an oscillation frequency of an oscillator of the first wireless communication apparatus and an oscillation frequency of an oscillator of the wireless communication apparatus based on the first frame. The transmitter circuitry is configured to transmit a third frame at a frequency determined based on the difference during a period at least partially overlapping a period during which the first wireless communication apparatus transmits a second frame addressed to a second wireless communication apparatus.
    Type: Application
    Filed: September 8, 2020
    Publication date: April 15, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro SEKIYA, Toshihisa NABETANI
  • Publication number: 20210088997
    Abstract: According to one embodiment, an electronic apparatus includes a receiver, a processor and a transmitter. The receiver receives a reception signal including a value indicating a physical quantity related to operation of a control target object at a communication destination. The processor determines a state of wireless communication between the electronic apparatus and the communication destination. The processor calculates a target value for instructing operation of the control target object. The processor generates a transmission signal including a value obtained by modifying the target value. The transmitter transmits the transmission signal to the control target object.
    Type: Application
    Filed: March 3, 2020
    Publication date: March 25, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Tsuyoshi KOGAWA, Toshihisa NABETANI, Tsuguhide AOKI
  • Publication number: 20210083382
    Abstract: An electronic device comprises first and second array antennas, and first and second wireless communication devices. An orientation of the first array antenna is different from an orientation of the second array antenna. A frequency band of the second wireless communication device is lower than a frequency band of the first wireless communication device. An electromagnetic wave power of the second wireless communication device is larger than an electromagnetic wave power of the first wireless communication device. A size or distance of antenna elements of the second array antenna is larger than a size or distance of antenna elements of the first array antenna.
    Type: Application
    Filed: October 19, 2020
    Publication date: March 18, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji AKITA, Toshihisa NABETANI
  • Publication number: 20210067278
    Abstract: According to one embodiment, a wireless communication apparatus includes transmitter circuitry, receiver circuitry and control circuitry. The transmitter circuitry transmits a first frame including first data. The receiver circuitry receives, if the first frame is received by at least a first wireless communication apparatus and a second wireless communication apparatus, a second frame indicating a reception status of the first data by the first wireless communication apparatus and a third frame indicating a reception status of the first data by the second wireless communication apparatus. The control circuitry determines not retransmitting the first data if at least one of the second frame and the third frame indicates that reception has succeeded.
    Type: Application
    Filed: February 28, 2020
    Publication date: March 4, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa NABETANI, Masahiro SEKIYA
  • Patent number: 10847882
    Abstract: According to one embodiment, an electronic device comprises first and second array antennas, and first and second wireless communication devices. An orientation of the first array antenna is different from an orientation of the second array antenna. A frequency band of the second wireless communication device is lower than a frequency band of the first wireless communication device. An electromagnetic wave power of the second wireless communication device is larger than an electromagnetic wave power of the first wireless communication device. A size or distance of antenna elements of the second array antenna is larger than a size or distance of antenna elements of the first array antenna.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 24, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koji Akita, Toshihisa Nabetani
  • Patent number: 10833837
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry and a receiver circuitry. The transmitter circuitry is configured to; transmit a first frame to a first terminal, and transmit a second frame to a second terminal when a first period elapsed after transmission of the first frame. The receiver circuitry is configured to receive a third frame including acknowledgement information of the first frame from the first terminal when the first period elapsed after transmission of the first frame. A duration of the second frame is set as equal to or greater than a difference between a duration of the third frame and a duration of the first frame.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: November 10, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Masahiro Sekiya, Toshihisa Nabetani, Narendar Madhavan
  • Publication number: 20200304176
    Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa NABETANI, Ryoko MATSUO, Tomoko ADACHI, Tsuguhide AOKI
  • Patent number: 10721033
    Abstract: According to one embodiment, a wireless communication apparatus includes controlling circuitry and transmitter circuitry. The controlling circuitry is configured to divide data into bit strings by a unit of a first number of bits; add at least one padding bit to one of the bit strings according to a difference between a number of bits of the one of the bit strings and the first number of bits, when the one of the bit strings has a number of bits less than the first number of bits; add error correction codes to the bit strings to generate encoded blocks, wherein each of the error correction codes has a second number of bits; combine the encoded blocks to generate encoded frames; and aggregate the encoded frames to generate a transmission packet. The transmitter circuitry is configured to transmit the transmission packet.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: July 21, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Taniguchi, Toshihisa Nabetani, Ryota Sekiya
  • Patent number: 10715218
    Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 14, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa Nabetani, Ryoko Matsuo, Tomoko Adachi, Tsuguhide Aoki
  • Publication number: 20200195756
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.
    Type: Application
    Filed: February 20, 2020
    Publication date: June 18, 2020
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Toshihisa NABETANI, Ryoko MATSUO, Tomoko ADACHI, Tsuguhide AOKI
  • Patent number: 10638476
    Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a beacon signal including first information to specify a first wireless communication device to be reassigned a slot and a start timing to allow use of a reassigned slot, and transmit, after transmission of the first information, a first signal including second information to specify the reassigned slot, the first signal being a signal different from the beacon signal and a receiver configured to receive a signal.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: April 28, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko Matsuo, Toshiyuki Nakanishi, Toshihisa Nabetani, Hirokazu Tanaka
  • Publication number: 20200119863
    Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry, a receiver circuitry, and a processing circuitry. The transmitter circuitry transmits a first data frame including first data to a destination apparatus. The receiver circuitry receives first acknowledgment information indicative of a reception state of the first data included in the first data frame. The receiver circuitry receives second acknowledgment information indicative of a reception state of the first data included in a second data frame. The second data frame is transmitted from another electronic apparatus to the destination apparatus. The processing circuitry determines whether the first data frame is retransmitted, based on at least one of the first and second acknowledgment information.
    Type: Application
    Filed: August 30, 2019
    Publication date: April 16, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kensuke NAKANISHI, Masahiro SEKIYA, Toshihisa NABETANI, Narendar MADHAVAN
  • Patent number: 10609186
    Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: March 31, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Toshihisa Nabetani, Ryoko Matsuo, Tomoko Adachi, Tsuguhide Aoki
  • Publication number: 20200077441
    Abstract: According to one embodiment, an electronic apparatus includes a receiver and a transmitter. The receiver is configured to receive, from a first wireless apparatus, a first physical frame including a destination address receivable by a second wireless apparatus different from the electronic apparatus. The transmitter is configured to transmit, to the first wireless apparatus, a first response frame including first information regarding the first physical frame, if the first physical frame is successfully received. A transmission period of the first response frame at least partially overlaps with a transmission period of a second response frame including second information regarding the first physical frame received by the second wireless apparatus.
    Type: Application
    Filed: March 5, 2019
    Publication date: March 5, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Narendar MADHAVAN, Masahiro SEKIYA, Toshihisa NABETANI, Kensuke NAKANISHI
  • Patent number: 10531450
    Abstract: According to one embodiment, a communication processing device mounted in a wireless communication device which uses a first channel and a second channel, includes controlling circuitry. The circuitry is configured to control to transmit, through the first channel, a first announcement signal including channel information of the second channel and control to transmit, through the second channel, a second announcement signal when slot allocation of a target communication device in the second channel is determined to be changed, the second announcement signal including a notification of the change in the slot allocation of the target communication device.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: January 7, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryoko Matsuo, Toshihisa Nabetani, Toshiyuki Nakanishi, Hirokazu Tanaka
  • Patent number: 10523398
    Abstract: According to one embodiment, an electronic apparatus includes controller circuitry, transmitter circuitry, and receiver circuitry. The controller circuitry is configured to judge whether a payload for a first packet comprises retransmission data; set a first PHY header for the first packet, when the payload does not comprise the retransmission data; set a second PHY header for the first packet, when the payload includes the retransmission data, wherein the second PHY header comprises an amount of information larger than an amount of information of the first PHY header; and generate the first packet comprising the payload and either one of the first PHY header or the second PHY header set for the first packet. The transmitter circuitry is configured to transmit the first packet. The receiver circuitry is configured to receive an ACK signal or a NACK signal for the first packet.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: December 31, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kentaro Taniguchi, Toshihisa Nabetani, Ryota Sekiya
  • Patent number: 10523407
    Abstract: According to one embodiment, a wireless communication device includes a receiver and a transmitter. The receiver receives a first frame in a predetermined frequency band. The transmitter transmits a second frame in the predetermined frequency band at a same time as receipt of the first frame. The transmitter transmits control information that controls a transmission timing of a third frame that is a response frame to the second frame. The transmitter transmits a fourth frame that is a response frame to the first frame, at a timing according to the control information.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: December 31, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Toshihisa Nabetani, Masahiro Sekiya, Narendar Madhavan