Patents by Inventor Shinya Otsuki
Shinya Otsuki 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: 20250039730Abstract: A wireless communication system according to one embodiment is a wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, and the wireless communication system includes: delay determination circuitry configured to determine whether a delay in communication of the second communication scheme exceeds a predetermined value; and a controller to perform control such that the wireless terminals and the base station communicate by the first communication scheme without using the second communication scheme until a predetermined time elapses in a case where the delay determination circuitry determine that the delay exceeds the predetermined value.Type: ApplicationFiled: December 3, 2021Publication date: January 30, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
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Publication number: 20250024351Abstract: A wireless communication system includes a multi-device-compatible base station to mixedly accommodate one or more first wireless terminals capable of performing simultaneous communication by a plurality of different communication schemes. There is a control device configured to control the base station. The control device includes a collection unit that collects scheme information regarding the communication schemes by which the first wireless terminals are able to perform communication and scheme information regarding the communication schemes by which the second wireless terminals are able to perform communication. There is also a distribution control unit that controls distribution of traffic.Type: ApplicationFiled: December 1, 2021Publication date: January 16, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Junichi IWATANI, Yusuke ASAI, Akira KISHIDA, Shinya OTSUKI, Riku OMIYA, Yasushi TAKATORI
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Publication number: 20250024499Abstract: The wireless communication system includes a plurality of wireless terminals each including a plurality of wireless interfaces corresponding to a plurality of channels in different frequency bands, and a wireless base station device that establishes wireless communication with the wireless terminals. Each of the wireless terminals performs channel sensing, and transmits sensing information including an identifier of a sensed channel, a sensing result of the channel, and an identifier of the wireless terminal. The wireless base station device calculates and stores a sensing time for each of the wireless terminals on the basis of the sensing information, the sensing time being an accumulated value of time required for sensing by the wireless terminal, and allocates a reward according to the sensing time to each of the plurality of wireless terminals.Type: ApplicationFiled: November 29, 2021Publication date: January 16, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
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Publication number: 20250016827Abstract: A wireless communication system includes: a first wireless terminal capable of communicating through both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band higher than the first frequency band; a second wireless terminal that is compatible with communication through the first communication scheme and is not compatible with communication through the second communication scheme; and a multi-link compatible base station that accommodates the first wireless terminal and the second wireless terminal. A contention window value during transmission in communication between the base station and the first wireless terminal through the first communication scheme is set to a value greater than a predetermined value that is a contention window value during transmission in communication between the base station and the second wireless terminal through the first communication scheme.Type: ApplicationFiled: December 17, 2021Publication date: January 9, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
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Publication number: 20250016616Abstract: A wireless communication system according to one embodiment is a wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, and the wireless communication system includes: number-of-times measurement circuitry configured to measure the number of retries for attempting communication by the second communication scheme; and a controller to perform control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the number of times measured by the number-of-times measurement circuitry exceed a predetermined number of times.Type: ApplicationFiled: December 3, 2021Publication date: January 9, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
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Publication number: 20250016594Abstract: The wireless communication system includes a plurality of wireless terminals each including a plurality of wireless interfaces corresponding to a plurality of channels in different frequency bands, and a wireless base station device that establishes wireless communication with the wireless terminals. Each of the wireless terminals performs channel sensing, and transmits sensing information including an identifier of a sensed channel, a sensing result of the channel, and an identifier of the wireless terminal. The wireless base station device calculates and stores the number of sensing channels for each of the wireless terminals on the basis of the sensing information, the number of sensing channels being the number of channels sensed by the wireless terminal, and allocates a reward according to the number of sensing channels to each of the plurality of wireless terminals.Type: ApplicationFiled: November 29, 2021Publication date: January 9, 2025Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Riku OMIYA, Junichi IWATANI, Akira KISHIDA, Shinya OTSUKI, Yusuke ASAI, Tomoaki OGAWA, Yasushi TAKATORI
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Publication number: 20240292266Abstract: There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.Type: ApplicationFiled: April 5, 2024Publication date: August 29, 2024Inventors: Junichi Iwatani, Hiroyuki Nakamura, Tomoaki Ogawa, Makoto Umeuchi, Shinya Otsuki, Hiroshi Sakamoto, Masayoshi Nabeshima
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Patent number: 12058078Abstract: A predetermined radio base station and subordinate radio terminals detect signals (beacons) regularly transmitted by other radio base stations, transmit information about radio channels and base station identifiers of the detected signals, and position information about the radio terminals to an interference area detection device to aggregate the information and the position information as a base station-base station detection list and a terminal-base station detection list.Type: GrantFiled: September 13, 2019Date of Patent: August 6, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hiroshi Sakamoto, Hiroyuki Nakamura, Tomoaki Ogawa, Makoto Umeuchi, Shinya Otsuki, Junichi Iwatani, Masayoshi Nabeshima
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Patent number: 11985529Abstract: A plurality of access points configured to communicate with a subordinate wireless LAN terminal, an information collecting device configured to collect a frame respectively transmitted and received between the plurality of access points and the wireless LAN terminal, and extract information on communication quality of an access point of the plurality of access points from a header of the frame, and an information collecting server configured to acquire the information on the communication quality of the access point from the information collecting device, analyze the information to determine whether the communication quality is good or bad for each of the plurality of access points, and execute processing of externally displaying or notifying a result that is determined are included.Type: GrantFiled: October 18, 2019Date of Patent: May 14, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Masayoshi Nabeshima, Hiroyuki Nakamura, Tomoaki Ogawa, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto
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Patent number: 11985533Abstract: There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.Type: GrantFiled: September 13, 2019Date of Patent: May 14, 2024Assignee: Nippon Telegraph and Telephone CorporationInventors: Junichi Iwatani, Hiroyuki Nakamura, Tomoaki Ogawa, Makoto Umeuchi, Shinya Otsuki, Hiroshi Sakamoto, Masayoshi Nabeshima
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Publication number: 20240036227Abstract: A capture device which captures propagation path information communicated between the two or more wireless devices and transmits the propagation path information to a first detection device and a second detection device; and a learning model generation device which generates a learning model for object detection using supervised machine learning are provided. The first detection device performs object detection between the wireless devices using a learning model generated by the learning model generation device, the second detection device performs object detection with higher accuracy than the first detection device, and the learning model generation device generates and updates a learning model which is used by the first detection device as teacher data using determination data including object detection results of the second detection device. This makes it possible to easily generate a learning model using supervised machine learning without spending time or manpower.Type: ApplicationFiled: December 17, 2020Publication date: February 1, 2024Inventors: Shinya Otsuki, Tomoki Murakami, Tomoaki Ogawa
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Patent number: 11889329Abstract: A wireless base station and a first wireless terminal include means for collecting first wireless performance information regarding wireless communication in both a downstream direction and an upstream direction and transmitting the first wireless performance information to a wireless performance measurement device. The wireless base station and a second wireless terminal include means for collecting second wireless performance information regarding wireless communication in both the downstream direction and the upstream direction and transmitting the second wireless performance information to the wireless performance measurement device.Type: GrantFiled: September 13, 2019Date of Patent: January 30, 2024Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shinya Otsuki, Tomoaki Ogawa, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto, Masayoshi Nabeshima, Hiroyuki Nakamura
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Patent number: 11838087Abstract: Provided is an antenna placement method in a system for detecting an object in a detection area between at least one set of a transmission station and a reception station by a wireless signal.Type: GrantFiled: March 11, 2020Date of Patent: December 5, 2023Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoki Murakami, Shinya Otsuki, Takafumi Hayashi, Yasushi Takatori
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Publication number: 20230361890Abstract: Provided is a wireless communication system that detects an object inside a communication area including: a base station device; and a terminal device, in which the base station device controls a timing for transmitting a reference signal for measuring a state of a propagation path on the basis of a pilot signal included in a wireless signal received from the terminal device during wireless communication and detects an object inside the communication area on the basis of propagation state information indicating a state of the propagation path received from the terminal device during wireless sensing, and the terminal device transmits, to the base station device, propagation state information measured on the basis of a reference signal received from the base station device. It is thus possible to transmit the reference signal for measuring a state of the propagation path without degrading a throughput of wireless communication.Type: ApplicationFiled: September 18, 2020Publication date: November 9, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shinya OTSUKI, Tomoki MURAKAMI, Tomoaki OGAWA
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Patent number: 11812292Abstract: There are provided an information collecting device configured to collect a frame A transmitted and received between a wireless LAN base station that is an evaluation target and a wireless LAN terminal subordinate to the wireless LAN base station that is the evaluation target and a frame B transmitted and received between a wireless LAN base station that is a non-evaluation target and a wireless LAN terminal subordinate to the wireless LAN base station that is the non-evaluation target, and extract radio information on communication quality of each of the wireless LAN base stations from a header of a corresponding one of the frames A and B, and a wireless LAN communication quality estimation device configured to acquire, from the wireless LAN base station that is the evaluation target, information on the number of currently connected wireless LAN terminals, acquire, from the information collecting device, the radio information on the communication quality of each of the wireless LAN base stations, and analyzeType: GrantFiled: October 18, 2019Date of Patent: November 7, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Masayoshi Nabeshima, Shinya Otsuki, Tomoaki Ogawa, Hiroshi Sakamoto, Makoto Umeuchi, Junichi Iwatani, Hiroyuki Nakamura
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Patent number: 11732311Abstract: The improved Tm mapping method using imperfect-match linear long quenching probes can accurately distinguish among and identify microorganisms at least at the genus level and often at the species level even in a real-time PCR instrument having measurement errors of Tm values between PCR tubes within ±0.5° C. Therefore, the Tm mapping method can be performed in almost all real-time PCR instruments and can identify unspecified infection-causing pathogenic microorganisms in about 4 hours after sample collection.Type: GrantFiled: June 19, 2020Date of Patent: August 22, 2023Inventors: Hideki Niimi, Shinya Otsuki, Isao Kitajima
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Publication number: 20230239709Abstract: There are provided a first wireless system, a second wireless system, an information collection terminal, and a wireless control apparatus. The first wireless system includes a fixed wireless access apparatus that performs communication with a movable wireless terminal. The second wireless system performs communication in a limited communication area using a frequency band that is the same as or overlaps a frequency band of the first wireless system. The information collection terminal is installed in the communication area of the second wireless system and collects information on the wireless communication of the first wireless system. The wireless control apparatus controls the communication of the first wireless system.Type: ApplicationFiled: June 1, 2020Publication date: July 27, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shinya OTSUKI, Junichi IWATANI, Hiroshi SAKAMOTO, Masayoshi NABESHIMA, Tomoaki OGAWA
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Publication number: 20230204750Abstract: A wireless transmission device transmits a radio signal with a plurality of beam patterns and outputs transmission beam identifiers corresponding to the beam patterns to an object detection device, a wireless reception device receives the radio signal transmitted by the wireless transmission device with a plurality of beam patterns, measures received signal strength for each of the beam patterns and outputs reception beam identifiers and the received signal strength to the object detection device, and the object detection device detects an object within a detection area on the basis of the transmission beam identifiers, the reception beam identifiers and the received signal strength. This enables device-free object detection by utilizing a beamforming function, so that it is possible to achieve high detection accuracy while preventing increase in cost.Type: ApplicationFiled: May 15, 2020Publication date: June 29, 2023Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoki MURAKAMI, Shinya OTSUKI, Masashi IWABUCHI, Tomoaki OGAWA
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Patent number: 11595935Abstract: In a wireless information collecting method executed by at least one user terminal device that measures wireless information used in a site survey and a server device that stores the wireless information and performs the site survey, the user terminal device performs a step of periodically measuring a current position and transmitting positioning information indicating the current position to the server device, and a step of measuring the wireless information in accordance with a wireless information measurement number instructed by the server device and transmitting wireless information including a position and time to the server device.Type: GrantFiled: September 27, 2019Date of Patent: February 28, 2023Assignee: Nippon Telegraph and Telephone CorporationInventors: Tomoaki Ogawa, Hiroyuki Nakamura, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto, Masayoshi Nabeshima
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Publication number: 20220103222Abstract: Provided is an antenna placement method in a system for detecting an object in a detection area between at least one set of a transmission station and a reception station by a wireless signal.Type: ApplicationFiled: March 11, 2020Publication date: March 31, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Tomoki MURAKAMI, Shinya OTSUKI, Takafumi HAYASHI, Yasushi TAKATORI