Patents by Inventor Takashi Iwai

Takashi Iwai 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: 20240171312
    Abstract: According to the present invention, a base station can dynamically change a repetition transmission method as appropriate. In a base station (100), a repetition control unit (103) determines a data repetition pattern for a terminal (200). A transmission unit (109) repeatedly transmits data (repetition transmission) on the basis of the repetition pattern. The data repetition pattern corresponds to control information to be reported to the terminal (200) by dynamic signaling.
    Type: Application
    Filed: January 31, 2024
    Publication date: May 23, 2024
    Inventors: Takashi IWAI, Tetsuya YAMAMOTO, Tomoya NUNOME, Tomofumi TAKATA
  • Patent number: 11985513
    Abstract: Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit (107) of the radio communication device (SR initiator) (100) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device (100) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit (101) transmits the SR signal by using the determined transmission resources.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: May 14, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Jun Minotani, Atsushi Matsumoto, Takashi Iwai, Tomofumi Takata, Yoshio Urabe
  • Patent number: 11985086
    Abstract: Disclosed are a wireless transmitter and a reference signal transmission method that improve channel estimation accuracy. In a terminal, which transmits a reference signal using n (n is a non-negative integer 2 or greater) band blocks (which correspond to clusters here), which are disposed with spaces therebetween in a frequency direction, a reference signal controller switches the reference signal formation method of a reference signal generator between a first formation method and a second formation method based on the number (n) of band blocks. In addition, a threshold value setting unit adjusts a switching threshold value based on the frequency spacing between band blocks. Thus, the reference signal formation method can be selected with good accuracy and, as a result, channel estimation accuracy is further improved.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: May 14, 2024
    Assignee: Sun Patent Trust
    Inventors: Takashi Iwai, Sadaki Futagi, Tomohumi Takata, Daichi Imamura, Yoshihiko Ogawa
  • Patent number: 11985698
    Abstract: In an AP, a Trigger frame generator generates a trigger signal instructing an uplink signal transmission, the trigger signal including a terminal information field that includes a terminal ID subfield and a resource unit allocation information subfield, and a radio transmitter/receiver transmits the trigger signal. In a case where the trigger signal includes a first terminal information field specifying one or more contiguous resource units for random access, the Trigger frame generator sets an unused ID that is not to be used as a terminal ID in the first terminal information field.
    Type: Grant
    Filed: May 18, 2023
    Date of Patent: May 14, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Takashi Iwai, Yoshio Urabe, Tomohumi Takata
  • Publication number: 20240155407
    Abstract: A base station equipped with: a receiver circuit that receives control information pertaining to sharing channel state information during coordinated communication between base stations; and a control circuit that, on the basis of the control information, controls the transmission of the channel state information to another base station.
    Type: Application
    Filed: December 7, 2021
    Publication date: May 9, 2024
    Inventors: Takayuki NAKANO, Takashi IWAI, Yoshio URABE
  • Patent number: 11979104
    Abstract: A rotary electric machine control apparatus (1) suitably controls two inverters (10) connected to associated ends of open windings (8). The rotary electric machine control apparatus (1) performs target control involving: controlling a first one of the inverters (10), which is selected from a first inverter (11) and a second inverter (12), by rectangular wave control; and controlling a second one of the inverters (10) by special pulse width modulation control that is one type of pulse width modulation control. The special pulse width modulation control is a control method to produce a switching pattern (Su2+) that is based on a difference between a switching pattern resulting from the pulse width modulation control and a switching pattern (Su1+) resulting from the rectangular wave control when a target voltage is to be generated in the open windings (8).
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: May 7, 2024
    Assignees: AISIN CORPORATION, NAGOYA INSTITUTE OF TECHNOLOGY
    Inventors: Subrata Saha, Hiroki Iwai, Takashi Kosaka, Hiroaki Matsumori
  • Publication number: 20240146434
    Abstract: Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.
    Type: Application
    Filed: January 9, 2024
    Publication date: May 2, 2024
    Inventors: Takashi IWAI, Daichi IMAMURA, Akihiko NISHIO, Yoshihiko OGAWA, Masaru FUKUOKA
  • Publication number: 20240146476
    Abstract: This wireless communication control device is a first wireless control device provided with: a control circuit that causes the waveform of a reference signal transmitted to a wireless communication device in coordination with a second wireless communication control device to differ, either in the frequency domain or the time domain, from the waveform of a reference signal transmitted to the wireless communication device by the second wireless communication control device; and a transmission circuit that transmits the reference signal.
    Type: Application
    Filed: September 4, 2020
    Publication date: May 2, 2024
    Inventors: Takayuki NAKANO, Hiroyuki KANAYA, Yoshio URABE, Ryutaro HASHI, Jun MINOTANI, Takashi IWAI, Tomofumi TAKATA
  • Patent number: 11973603
    Abstract: Provided is a base station that performs feedback with regard to data transmission. The base station includes a downlink feedback information (DFI) generation unit and a transmitter. On the basis of a resource allocation configuration that was configured by a terminal, the DFI generation unit determines a transmission method for feedback information that includes a response signal regarding uplink data. The transmitter transmits the feedback information on the basis of the transmission method.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: April 30, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Tomoya Nunome, Takashi Iwai, Hidetoshi Suzuki, Ayako Horiuchi, Yoshihiko Ogawa
  • Publication number: 20240116654
    Abstract: According to an aspect of the present invention, there is provided a method for rendezvous with an orbiting object comprising: launching a tug and a servicer into a client orbit; separating the servicer from the tug; and docking the servicer with a client. According to another aspect of the present invention, there is provided system for rendezvous with an orbiting object comprising: a first spacecraft raft comprising a tug capable of towing a second spacecraft, wherein the second spacecraft is a servicer configured to dock with a tumbling client orbiting object.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 11, 2024
    Applicant: Astroscale Holdings Inc.
    Inventors: Michael Lindsay, Takashi Iwai
  • Patent number: 11956833
    Abstract: A communication apparatus in the present disclosure comprises an AID generator, a Trigger frame generator, and a wireless transmitter/receiver. When a Trigger Type in a trigger frame is an RA trigger, the AID generator (103) generates, as information for an AID12 subfield, information that is different from an AID. The Trigger frame generator (104) generates a RA variant Trigger frame when the Trigger Type in the trigger frame is an RA trigger, and sets, in the AID12 subfield included in the RA variant Trigger frame, the information output from the AID generator (103). The wireless transmitter/receiver (106) transmits the Trigger frame, generated by the Trigger frame generator (104), to a terminal (200).
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: April 9, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Takashi Iwai, Tomohumi Takata, Atsushi Matsumoto
  • Publication number: 20240101532
    Abstract: A compound useful as an active ingredient of a pharmaceutical composition for treatment of cancer related to activation of immune cells or cancer resistant to anti-PD-1 antibody/anti-PD-L1 antibody therapy is provided. The present inventors have conducted studies on a compound useful as an active ingredient of a pharmaceutical composition for treatment of cancer related to activation of immune cells or cancer resistant to anti-PD-1 antibody/anti-PD-L1 antibody therapy, and confirmed that a heteroaryl carboxamide compound has DGK ? (DGKzeta) inhibitory effect, leading to completion of the present invention. The heteroaryl carboxamide compound of the present invention has DGK ? inhibitory effect, and can be used as a therapeutic agent for treatment of cancer related to activation of immune cells or cancer resistant to anti-PD-1 antibody/anti-PD-L1 antibody therapy.
    Type: Application
    Filed: November 28, 2023
    Publication date: March 28, 2024
    Inventors: Hideyuki Watanabe, Takashi Kamikubo, Akio Kamikawa, Takuya Washio, Yohei Seki, Keiichiro Okuyama, Osamu Ikeda, Hiroshi Tomiyama, Yoshinori Iwai, Akihiko Nakamura, Kozo Miyasaka
  • Patent number: 11943788
    Abstract: A terminal includes a receiver, which, in operation, receives time unit information related to an amount of an uplink time resource per a time unit, and receives a number of repetitions over a plurality of the time units, wherein the time unit includes a downlink time resource for a downlink signal and the uplink time resource for a response signal. The amount of the uplink time resource is expressed as a fixed number of consecutive symbols that remains the same number over the plurality of the time units over which the response signal is repeatedly transmitted. The terminal includes a transmitter, which, in operation, repeatedly transmits the response signal over the plurality of the time units.
    Type: Grant
    Filed: April 11, 2023
    Date of Patent: March 26, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Tetsuya Yamamoto, Ayako Horiuchi, Takashi Iwai
  • Publication number: 20240098758
    Abstract: A base station according to the present invention is equipped with: a receiver circuit that receives control information pertaining to sharing a response signal to a downlink signal during coordinated communication between base stations; and a control circuit that, on the basis of the control information, controls the transmission of the response signal to another base station.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 21, 2024
    Inventors: Takayuki NAKANO, Takashi IWAI, Yoshio URABE
  • Publication number: 20240089052
    Abstract: A base station (100, 300) is provided with a transmitter and a receiver. The transmitter (109) transmits a downlink signal in a downlink transmission region, in a time unit that includes the downlink transmission region, an uplink transmission region, and a gap period that is a switching point between the downlink transmission region and the uplink transmission region. The receiver (111) receives an uplink signal in the uplink transmission region, in the time unit. Furthermore, a delay tolerant signal for which a delay is tolerated more than for the downlink signal and the uplink signal is mapped to within the gap period.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: TOMOHUMI TAKATA, TAKASHI IWAI, HIDETOSHI SUZUKI, AYAKO HORIUCHI, JOACHIM LOEHR, TETSUYA YAMAMOTO
  • Publication number: 20240089065
    Abstract: Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.
    Type: Application
    Filed: November 14, 2023
    Publication date: March 14, 2024
    Inventors: Atsushi MATSUMOTO, Daichi IMAMURA, Takashi IWAI, Yoshihiko OGAWA, Tomofumi TAKATA, Katsuhiko HIRAMATSU
  • Publication number: 20240080150
    Abstract: The present invention improves channel estimation accuracy in wireless communication. This communication device comprises: a control circuit that sets, to a control signal, information relating to an additional reference signal for each destination device; and a transmission circuit that transmits the control signal.
    Type: Application
    Filed: July 9, 2021
    Publication date: March 7, 2024
    Inventors: Jun MINOTANI, Yoshio URABE, Takashi IWAI, Tomofumi TAKATA
  • Patent number: 11923982
    Abstract: According to the present invention, a base station can dynamically change a repetition transmission method as appropriate. In a base station (100), a repetition control unit (103) determines a data repetition pattern for a terminal (200). A transmission unit (109) repeatedly transmits data (repetition transmission) on the basis of the repetition pattern. The data repetition pattern corresponds to control information to be reported to the terminal (200) by dynamic signaling.
    Type: Grant
    Filed: October 28, 2022
    Date of Patent: March 5, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Takashi Iwai, Tetsuya Yamamoto, Tomoya Nunome, Tomofumi Takata
  • Publication number: 20240064657
    Abstract: The present invention provides a transmitter which can suitably perform a transmission power control in a PT-RS port. In this transmitter (100), a control unit (101) determines a transmission power for transmitting a reference signal (PT-RS) for phase tracking and a data signal within a range in which the maximum transmission power for each antenna port is not exceeded. In addition, a transmission unit (105) transmits the reference signal for phase tracking and the data signal at the transmission power determined by the control unit (101).
    Type: Application
    Filed: October 24, 2023
    Publication date: February 22, 2024
    Inventors: Shotaro MAKI, Takashi IWAI, Hidetoshi SUZUKI
  • Patent number: 11909511
    Abstract: Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit (101) sets whether the terminal (100) thereof is a CoMP terminal or a Non-CoMP terminal. When the terminal (100) is set as a Non-CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, from among all the ZC sequence numbers that can be used within the system. When the terminal (100) is set as a CoMP terminal, the hopping pattern calculating unit (104) calculates a ZC sequence number to be used as the transmission timing, by hopping the ZC sequence numbers to be used within the CoMP set. A ZC sequence generating unit (105) generates a ZC sequence to be used as an SRS, using the calculated ZC sequence number.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: February 20, 2024
    Assignee: SUN PATENT TRUST
    Inventors: Takashi Iwai, Daichi Imamura, Akihiko Nishio, Yoshihiko Ogawa, Masaru Fukuoka