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).
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Patent number: 11522584Abstract: A transmission method includes encoding processing that generates an encoded block, modulation processing that generates symbols from the encoded block, phase change processing that changes the phase of the symbols, and transmission processing that arranges the symbols in data carriers and transmits the symbols. The transmission processing configures a frame by arranging symbol groups in order in the frequency direction and transmits the frame. The symbol groups each include a symbol generated from a first encoded block and a symbol generated from a second encoded block. The phase change processing includes changing the phase of symbols the same symbol group using the same phase change value.Type: GrantFiled: October 7, 2019Date of Patent: December 6, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
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Patent number: 11509359Abstract: 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: GrantFiled: December 2, 2021Date of Patent: November 22, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
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Patent number: 11489564Abstract: 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: GrantFiled: April 19, 2019Date of Patent: November 1, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
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Publication number: 20220319320Abstract: A communication apparatus mounted on a vehicle includes: a camera that captures a still image used for generating a map; a positioning circuit that positions a captured position of the still image; a control circuit that associates position information indicating the captured position with image data of the still image; and a communication circuit that establishes a radio communication with a roadside unit and transmits the image data by radio to the roadside unit, in which the control circuit rearranges an transmission order of the image data to be transmitted by radio to the roadside unit, based on the position information.Type: ApplicationFiled: June 22, 2022Publication date: October 6, 2022Inventors: Kosei NAKANO, Hiroyuki MOTOZUKA, Masataka IRIE, Yao Huang Gaius WEE
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Patent number: 11372078Abstract: A wireless communication device for a road side zone includes a wireless communication circuit that forms beams in plural different directions in a time division scheme in an area which includes plural routes. The wireless communication device for a road side zone includes a recording circuit that records time transition in the direction of the beam used by the wireless communication circuit, which forms the beams in the plural different directions in a time division scheme, for wireless communication with a second wireless communication device provided to a mobile apparatus which moves on any of the plural routes.Type: GrantFiled: April 11, 2019Date of Patent: June 28, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Kosei Nakano, Masataka Irie, Takenori Sakamoto, Hiroyuki Motozuka, Kazuaki Takahashi
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Publication number: 20220182269Abstract: 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: ApplicationFiled: February 16, 2022Publication date: June 9, 2022Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI, Hiroyuki MOTOZUKA
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Publication number: 20220173777Abstract: 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: ApplicationFiled: February 10, 2022Publication date: June 2, 2022Inventors: Hiroyuki Motozuka, Masataka Irie, Takenori Sakamoto, Naganori Shirakata, Yao Huang Gaius Wee, Michael Hong Cheng Sim, Lei Huang
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Publication number: 20220150935Abstract: 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: ApplicationFiled: January 25, 2022Publication date: May 12, 2022Inventors: Lei HUANG, Hiroyuki MOTOZUKA, Yao Huang Gaius WEE, Takenori SAKAMOTO
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Patent number: 11296912Abstract: 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: GrantFiled: November 19, 2020Date of Patent: April 5, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka
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Publication number: 20220094398Abstract: 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: ApplicationFiled: December 2, 2021Publication date: March 24, 2022Inventors: Lei HUANG, Hiroyuki MOTOZUKA, Takenori SAKAMOTO
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Patent number: 11283498Abstract: 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: GrantFiled: March 30, 2021Date of Patent: March 22, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Hiroyuki Motozuka, Masataka Irie, Takenori Sakamoto, Naganori Shirakata, Yao Huang Gaius Wee, Michael Hong Cheng Sim, Lei Huang
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Publication number: 20220077902Abstract: 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: ApplicationFiled: November 17, 2021Publication date: March 10, 2022Inventors: Yutaka MURAKAMI, Hiroyuki MOTOZUKA
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Patent number: 11272524Abstract: 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: GrantFiled: July 21, 2020Date of Patent: March 8, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Lei Huang, Hiroyuki Motozuka, Yao Huang Gaius Wee, Takenori Sakamoto
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Publication number: 20220038326Abstract: A transmission device includes: a weighting synthesizer that generates a first precoded signal and a second preceded 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: ApplicationFiled: October 13, 2021Publication date: February 3, 2022Inventors: Yutaka MURAKAMI, Tomohiro KIMURA, Mikihiro OUCHI, Hiroyuki MOTOZUKA
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Publication number: 20220030663Abstract: 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: ApplicationFiled: October 7, 2021Publication date: January 27, 2022Inventors: TAKENORI SAKAMOTO, HIROYUKI MOTOZUKA, MASATAKA IRIE
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Publication number: 20220015004Abstract: The present invention improves the success rate of wireless connection in communications between moving objects or roadside unit-to-moving object communications. A wireless communication device (100) includes a first radio (101) and a second radio (102). The first radio (101) scans, at one of the front and rear of a moving object (10), a first connection destination detecting signal for first moving object-to-moving object communication or first roadside unit-to-moving object communication. The second radio (102) transmits, toward the other of the front and rear of the moving object (10), a second connection destination detecting signal for second moving object-to-moving object communication or second roadside unit-to-moving object communication.Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Inventors: Kosei NAKANO, Hiroyuki MOTOZUKA, Masataka IRIE
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Patent number: 11223393Abstract: 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: GrantFiled: October 17, 2018Date of Patent: January 11, 2022Assignee: Panasonic Intellectual Property Corporation of AmericaInventors: Lei Huang, Hiroyuki Motozuka, Takenori Sakamoto
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Publication number: 20210400739Abstract: 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: ApplicationFiled: August 26, 2021Publication date: December 23, 2021Inventors: Kosei NAKANO, Tomoya URUSHIHARA, Hiroyuki MOTOZUKA, Naganori SHIRAKATA, Koji TAKINAMI, Takenori SAKAMOTO, Yao Huang Gaius WEE
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Patent number: 11184031Abstract: The interleaver 104 interleaves first to Nth code words. The OFDM modulation circuit 105 converts the interleaved first to Nth code words into OFDM signals. The transmission RF circuit 106 transmits the OFDM signals. The number of data symbols included in the first code word is less than the number of data symbols included in the second code word. The interleaver 104 writes the first code word to the Nth code word in ascending order and starts reading from the second code word.Type: GrantFiled: April 10, 2018Date of Patent: November 23, 2021Assignee: Panasonic Intellectual Property Corporation Of AmericaInventors: Hiroyuki Motozuka, Takenori Sakamoto
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Patent number: 11184060Abstract: 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: GrantFiled: February 14, 2020Date of Patent: November 23, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yutaka Murakami, Tomohiro Kimura, Mikihiro Ouchi, Hiroyuki Motozuka