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).
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Publication number: 20220038205Abstract: According to one embodiment, a wireless apparatus determines a state of a first wireless link with a first mobile station and a state of a second wireless link with a second mobile station in a first communication mode, and transmits a first signal to the first and the second mobile stations in accordance with the states of the first and the second wireless links. In response to the first signal, the first communication mode is changed to a second communication mode in which the wireless apparatus communicates with the second mobile station via a direct communication between the first and the second mobile stations.Type: ApplicationFiled: March 10, 2021Publication date: February 3, 2022Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Miyuki OGURA, Toshihisa NABETANI, Tomoya TANDAI, Tatsuma HIRANO, Tsuyoshi KOGAWA, Haruka OBATA
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Publication number: 20220038143Abstract: 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: ApplicationFiled: October 21, 2021Publication date: February 3, 2022Applicant: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Toshihisa NABETANI, Ryoko MATSUO, Tomoko ADACHI, Tsuguhide AOKI
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Patent number: 11190239Abstract: 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: GrantFiled: June 5, 2020Date of Patent: November 30, 2021Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATIONInventors: Toshihisa Nabetani, Ryoko Matsuo, Tomoko Adachi, Tsuguhide Aoki
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Publication number: 20210360396Abstract: According to one embodiment, a wireless communication apparatus includes a transmitter. The transmitter transmits, in a first period, a first information frame. The first information frame includes first, verification information and a first key usable in the first period. The transmitter transmits, in the first period and after transmitting the first information frame, a data frame including first data. The transmitter transmits, in the first period and after transmitting the first information frame, a second information frame. The data frame includes a fourth key usable in a second period following the first period. The transmitter transmits, in the second period, a third information frame including third verification information and the fourth key.Type: ApplicationFiled: March 1, 2021Publication date: November 18, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tatsuma HIRANO, Masahiro SEKIYA, Toshihisa NABETANI
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Publication number: 20210352630Abstract: According to one embodiment, a base station communicably connected to a wireless terminal is provided. The base station includes a processor and a transmitter. The processor is configured to acquire communication condition information indicating conditions of wireless communication with the wireless terminal. The transmitter is configured to transmit the communication condition information to a system managing a first network slice and a second network slice which can be used by the base station.Type: ApplicationFiled: March 1, 2021Publication date: November 11, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Haruka OBATA, Toshihisa NABETANI, Tomoya TANDAI, Miyuki OGURA, Tatsuma HIRANO, Tsuyoshi KOGAWA
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Patent number: 11153906Abstract: 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: GrantFiled: March 5, 2019Date of Patent: October 19, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Narendar Madhavan, Masahiro Sekiya, Toshihisa Nabetani, Kensuke Nakanishi
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Patent number: 11108399Abstract: 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: GrantFiled: September 8, 2020Date of Patent: August 31, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro Sekiya, Toshihisa Nabetani
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Publication number: 20210226746Abstract: 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: ApplicationFiled: September 10, 2020Publication date: July 22, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro SEKIYA, Toshihisa NABETANI, Tatsuma HIRANO, Toshio ARIGA
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Publication number: 20210127441Abstract: 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: ApplicationFiled: September 1, 2020Publication date: April 29, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tatsuma HIRANO, Toshio ARIGA, Masahiro SEKIYA, Toshihisa NABETANI
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Publication number: 20210111728Abstract: 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: ApplicationFiled: September 8, 2020Publication date: April 15, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro SEKIYA, Toshihisa NABETANI
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Publication number: 20210088997Abstract: 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: ApplicationFiled: March 3, 2020Publication date: March 25, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tsuyoshi KOGAWA, Toshihisa NABETANI, Tsuguhide AOKI
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Publication number: 20210083382Abstract: 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: ApplicationFiled: October 19, 2020Publication date: March 18, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Koji AKITA, Toshihisa NABETANI
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Publication number: 20210067278Abstract: 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: ApplicationFiled: February 28, 2020Publication date: March 4, 2021Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshihisa NABETANI, Masahiro SEKIYA
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Patent number: 10847882Abstract: 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: GrantFiled: March 12, 2020Date of Patent: November 24, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Koji Akita, Toshihisa Nabetani
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Patent number: 10833837Abstract: 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: GrantFiled: August 3, 2018Date of Patent: November 10, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Masahiro Sekiya, Toshihisa Nabetani, Narendar Madhavan
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Publication number: 20200304176Abstract: 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: ApplicationFiled: June 5, 2020Publication date: September 24, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Toshihisa NABETANI, Ryoko MATSUO, Tomoko ADACHI, Tsuguhide AOKI
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Patent number: 10721033Abstract: 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: GrantFiled: February 22, 2018Date of Patent: July 21, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Kentaro Taniguchi, Toshihisa Nabetani, Ryota Sekiya
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Patent number: 10715218Abstract: 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: GrantFiled: March 28, 2019Date of Patent: July 14, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Toshihisa Nabetani, Ryoko Matsuo, Tomoko Adachi, Tsuguhide Aoki
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Publication number: 20200195756Abstract: 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: ApplicationFiled: February 20, 2020Publication date: June 18, 2020Applicant: Kabushiki Kaisha ToshibaInventors: Toshihisa NABETANI, Ryoko MATSUO, Tomoko ADACHI, Tsuguhide AOKI
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Patent number: 10638476Abstract: 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: GrantFiled: January 17, 2019Date of Patent: April 28, 2020Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Ryoko Matsuo, Toshiyuki Nakanishi, Toshihisa Nabetani, Hirokazu Tanaka