Patents by Inventor Hiroyuki Motozuka

Hiroyuki Motozuka 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: 11894890
    Abstract: According to a communication method of the present disclosure, a responder, after the end of transmission sector sweep (TXSS), receives from an initiator a first feedback frame including a BF training type FIELD indicating whether or not to implement a beam forming training (BFT) of a single user multi-input multi-output (SU-MIMO). If the BF training type FIELD indicates that a BFT of the SU-MIMO is to be implemented, the responder transmits to the initiator a second feedback frame based on the result of the TXSS and including a signal to noise ratio (SNR) and a sector identifier (ID) order. The initiator implements the BFT of the SU-MIMO between the initiator and the responder on the basis of the SNR and the sector ID order.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: February 6, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
  • Patent number: 11888767
    Abstract: A transmission device that improves data reception quality includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal from a first baseband signal and a second baseband signal, respectively; a phase changer that applies a phase change of i×?? to the second precoded signal; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. ?? satisfies ?/2 radians<??<? radians or ? radians<??<3?/2 radians. Each of the first baseband signal and the second baseband signal is modulated via a modulation scheme of quadrature amplitude modulation (QAM) using non-uniform mapping.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: January 30, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
  • Patent number: 11882606
    Abstract: This wireless communication terminal device includes a control circuit that: causes, after receiving a beacon from a base station device, a connection to be established between the wireless communication terminal device and the base station device using a first control program; if a connection notification request to an external server was received from one or more application programs, uses a second control program, after the establishment of the connection, to output a connection establishment notification to the one or more application programs; and after the connection establishment notification is received, outputs to a communication circuit, via the first control program, a communication request to the external server device by the one or more application programs. The communication circuit of the wireless communication terminal device transmits the communication request to the base station device.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: January 23, 2024
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Kosei Nakano, Tomoya Urushihara, Hiroyuki Motozuka, Naganori Shirakata, Koji Takinami, Takenori Sakamoto, Yao Huang Gaius Wee
  • Patent number: 11876591
    Abstract: A reception apparatus includes reception circuitry and decoding circuitry. The reception receives a signal including a legacy header field, an enhanced directional multi-gigabit (EDMG) header field, and a data field. The decoding circuitry decodes data included in the data field of the received signal. The legacy header field includes a Length field comprising multiple bits. The reception apparatus is an EDMG terminal, and a subset of the multiple bits of the Length field included in the legacy header field is used to indicate bandwidth over which the signal is transmitted. Remaining bits of the Length field included in the legacy header field are used to indicate data length of the received signal.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: January 16, 2024
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Hiroyuki Motozuka, Naganori Shirakata, Masataka Irie, Takenori Sakamoto
  • Patent number: 11863264
    Abstract: A transmission device includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal; a first pilot inserter that inserts a pilot signal into the first precoded signal; a phase changer that applies a phase change of i×?? to the second precoded signal, where i is a symbol number and an integer that is greater than or equal to 0; an inserter that inserts a pilot signal into the phase-changed second precoded signal; and a phase changer that applies a phase change to the phase-changed and pilot-signal-inserted second precoded signal. ?? satisfies ?/2 radians<??<? radians or ? radians<??<3?/2 radians.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: January 2, 2024
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
  • Patent number: 11855717
    Abstract: An initiator device is provided with a generation circuit for supporting Single User (SU)-Multiple Input Multiple Output (MIMO) operation and generating a first signal including a value that indicates which of a reciprocal MIMO phase and a non-reciprocal MIMO phase is to be applied to SU-MIMO BF training, and a transmission circuit for transmitting the first signal to a responder device. The responder device is provided with a reception circuit for receiving the first signal from the initiator device, and a processing circuit for determining on the basis of the value which of the reciprocal MIMO phase and the non-reciprocal MIMO phase is to be applied to SU-MIMO BF training.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: December 26, 2023
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
  • Publication number: 20230388843
    Abstract: A non-AP/PCP communication apparatus comprises: a receiver which receives a measurement request which is transmitted from an AP/PCP communication apparatus and which requests measurement used in SPSH executability determination; and a transmitter which transmits to the AP/PCP communication apparatus the result of carrying out the measurement on the basis of the measurement request. Using a first period, which is a period in which communication is to be carried out with a first non-AP/PCP communication apparatus, the transmitter and the receiver carry out communication with the first device using a first protocol, and in a second period which is included in the measurement request and in which communication is not carried out with the first device, the receiver carries out measurement of a received signal using the first protocol. The result includes information relating to the measurement of the received signal and information relating to the first protocol.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventors: Lei HUANG, Hiroyuki MOTOZUKA, Takenori SAKAMOTO
  • Publication number: 20230327830
    Abstract: A transmission device that improves data reception quality includes: a first pilot inserter that inserts a pilot signal into a first precoded signal; a phase changer that applies a phase change of i×?? to the second precoded signal, where i is a symbol number and an integer that is greater than or equal to 0; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. ?? satisfies n/2 radians<??<? radians or ? radians<??<3?/2 radians. When the communications scheme is an OFDM scheme, the phase changer and the phase changer apply a phase change, and when the communications scheme is a single-carrier scheme, do not apply a phase change.
    Type: Application
    Filed: June 7, 2023
    Publication date: October 12, 2023
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI, Hiroyuki MOTOZUKA
  • Publication number: 20230309088
    Abstract: A transmitting apparatus generates at least one of a first type of schedule element supporting an allocation involving a single channel and a second type of schedule element supporting an allocation involving a plurality of channels and transmits a MAC frame including the generated at least one schedule element over a first channel. When the allocation involving the plurality of channels includes the first channel, the transmitting apparatus generates a first type of schedule element including information regarding the allocation involving the plurality of channels and generates the second type of schedule element including difference information, and when the allocation involving the plurality of channels does not include the first channel, the transmitting apparatus omits the generation of the first type of schedule element and generates the second type of schedule element including all the information regarding the allocation involving the plurality of channels.
    Type: Application
    Filed: May 31, 2023
    Publication date: September 28, 2023
    Inventors: Lei HUANG, Hiroyuki MOTOZUKA, Yao Huang Gaius WEE, Takenori SAKAMOTO
  • Patent number: 11770730
    Abstract: A non-AP/PCP communication apparatus comprises: a receiver which receives a measurement request which is transmitted from an AP/PCP communication apparatus and which requests measurement used in SPSH executability determination; and a transmitter which transmits to the AP/PCP communication apparatus the result of carrying out the measurement on the basis of the measurement request. Using a first period, which is a period in which communication is to be carried out with a first non-AP/PCP communication apparatus, the transmitter and the receiver carry out communication with the first device using a first protocol, and in a second period which is included in the measurement request and in which communication is not carried out with the first device, the receiver carries out measurement of a received signal using the first protocol. The result includes information relating to the measurement of the received signal and information relating to the first protocol.
    Type: Grant
    Filed: November 15, 2022
    Date of Patent: September 26, 2023
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
  • Publication number: 20230291512
    Abstract: A transmission device that improves data reception quality includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal from a first baseband signal and a second baseband signal, respectively; a phase changer that applies a phase change of i x ?? to the second precoded signal; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. ?? satisfies ?/2 radians < ?? < ? radians or ? radians < ?? < 3?/2 radians. Each of the first baseband signal and the second baseband signal is modulated via a modulation scheme of quadrature amplitude modulation (QAM) using non-uniform mapping.
    Type: Application
    Filed: January 27, 2023
    Publication date: September 14, 2023
    Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI, Hiroyuki MOTOZUKA
  • Publication number: 20230246680
    Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.
    Type: Application
    Filed: April 7, 2023
    Publication date: August 3, 2023
    Inventors: Hiroyuki Motozuka, Masataka Irie, Takenori Sakamoto, Naganori Shirakata, Yao Huang Gaius Wee, Michael Hong Cheng Sim, Lei Huang
  • Patent number: 11716182
    Abstract: A transmission device that improves data reception quality includes: a first pilot inserter that inserts a pilot signal into a first precoded signal; a phase changer that applies a phase change of i×?? to the second precoded signal, where i is a symbol number and an integer that is greater than or equal to 0; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. ?? satisfies ?/2 radians<??<? radians or ? radians<??<3?/2 radians. When the communications scheme is an OFDM scheme, the phase changer and the phase changer apply a phase change, and when the communications scheme is a single-carrier scheme, do not apply a phase change.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: August 1, 2023
    Assignee: PANANSONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
  • Patent number: 11706755
    Abstract: A transmitting apparatus generates at least one of a first type of schedule element supporting an allocation involving a single channel and a second type of schedule element supporting an allocation involving a plurality of channels and transmits a MAC frame including the generated at least one schedule element over a first channel. When the allocation involving the plurality of channels includes the first channel, the transmitting apparatus generates a first type of schedule element including information regarding the allocation involving the plurality of channels and generates the second type of schedule element including difference information, and when the allocation involving the plurality of channels does not include the first channel, the transmitting apparatus omits the generation of the first type of schedule element and generates the second type of schedule element including all the information regarding the allocation involving the plurality of channels.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: July 18, 2023
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Lei Huang, Hiroyuki Motozuka, Yao Huang Gaius Wee, Takenori Sakamoto
  • Patent number: 11700159
    Abstract: In a transmission device, a signal processing circuit generates an aggregate physical layer convergence protocol data unit (A-PPDU) by adding a guard interval to each of a first part of a first physical layer convergence protocol data unit (PPDU) transmitted over each of a first through L?th channel of a predetermined channel bandwidth, where L is an integer of 2 or greater, a second part of the first PPDU transmitted over each of an (L+1)?th through P?th channel, which is a variable channel bandwidth that is N times the predetermined channel bandwidth, where N is an integer of 2 or greater and P is an integer of L+1 or greater, and a second PPDU transmitted over the (L+1)?th through P?th channel. A wireless circuit transmits the A-PPDU.
    Type: Grant
    Filed: October 7, 2021
    Date of Patent: July 11, 2023
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Takenori Sakamoto, Hiroyuki Motozuka, Masataka Irie
  • Publication number: 20230208499
    Abstract: A non-personal basic service set control point/access point (non-PCP/AP) communication apparatus includes a reception circuit, an estimation circuit, and a transmission circuit. The reception circuit receives a Directional Multi-Gigabit (DMG) Beacon frame including a sector sweep (SSW) field, the SSW field including a Parameter subfield indicating a value obtained by using a transmission Equivalent Isotropic Radiated Power (EIRP) of a PCP/AP communication partner apparatus and a reception antenna gain of the PCP/AP communication partner apparatus. The estimation circuit estimates an expected reception power at the PCP/AP communication partner apparatus by using the value of the Parameter subfield, and checks inequality between the estimated expected reception power and a receiver sensitivity value. The transmission circuit transmits a frame for Association Beamforming Training (A-BFT) if the estimated expected reception power is larger than the receive sensitivity value.
    Type: Application
    Filed: February 17, 2023
    Publication date: June 29, 2023
    Inventors: Yao Huang Gaius Wee, Hiroyuki Motozuka, Lei Huang, Tomoya Urushihara, Masataka Irie
  • Publication number: 20230198583
    Abstract: A transmission device includes: a weighting synthesizer that generates a first precoded signal and a second precoded signal from a first baseband signal and a second baseband signal, respectively; a phase changer that applies a phase change of i×?? to the second precoded signal; an inserter that inserts a pilot signal into the second precoded signal applied with the phase change; and a phase changer that applies a phase change to the second precoded signal applied with the phase change and inserted with the pilot signal. The weighting synthesizer performs, in the precoding process, a calculation that uses F = ( e j ? ? 11 e j ( ? 11 + ? 4 ) e j ? ? 21 e j ( ? 21 + ? + ? 4 ) ) on the first baseband signal and the second baseband signal modulated via a modulation scheme of QPSK.
    Type: Application
    Filed: February 16, 2023
    Publication date: June 22, 2023
    Inventors: Yutaka MURAKAMI, Hiroyuki MOTOZUKA
  • Publication number: 20230179504
    Abstract: A method for use of a wireless terminal device includes transmitting a Probe request frame by using a quasi-omni antenna pattern in a first channel if beam-forming training with a wireless base station device is not completed, selecting the wireless base station device as a connection destination if a Probe response frame corresponding to the Probe request frame is received from the wireless base station device, and performing the beam-forming training with the wireless base station device in a second channel if a time period for receiving the Probe response frame from the wireless base station device has passed.
    Type: Application
    Filed: January 30, 2023
    Publication date: June 8, 2023
    Inventors: Yao Huang Gaius WEE, Hiroyuki MOTOZUKA, Masataka IRIE
  • Publication number: 20230171834
    Abstract: A radio communication apparatus includes: processing circuitry, which, in operation, scans a radio connection destination candidate; and control circuitry, which, in operation, determines, when first initial-connection processing to the connection destination target fails, a start timing of second-initial connection processing based on a cause of the failure. The processing circuitry scans the connection destination candidate based on the start timing of the second initial-connection processing.
    Type: Application
    Filed: January 25, 2023
    Publication date: June 1, 2023
    Inventors: Kosei NAKANO, Hiroyuki MOTOZUKA, Takenori SAKAMOTO, Akihiro EGAMI, Masataka IRIE, Yao Huang Gaius WEE
  • Patent number: 11658714
    Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: May 23, 2023
    Assignee: Panasonic Intellectual Property Corporation of America
    Inventors: Hiroyuki Motozuka, Masataka Irie, Takenori Sakamoto, Naganori Shirakata, Yao Huang Gaius Wee, Michael Hong Cheng Sim, Lei Huang