Patents by Inventor Makoto Umeuchi
Makoto Umeuchi 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: 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: 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: 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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Patent number: 11265841Abstract: An object is to enable high-accuracy position estimation of a wireless terminal station by efficiently performing connection between a wireless base station and the wireless terminal station using multiple distributed antennas.Type: GrantFiled: May 23, 2019Date of Patent: March 1, 2022Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Masamichi Hosoda, Yasushi Hanakago, Tadashi Mori, Masaru Miyamoto, Tomoki Murakami, Makoto Umeuchi, Hiroshi Sakamoto, Tomoaki Ogawa
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Publication number: 20220038246Abstract: 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: ApplicationFiled: September 13, 2019Publication date: February 3, 2022Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Hiroshi SAKAMOTO, Hiroyuki NAKAMURA, Tomoaki OGAWA, Makoto UMEUCHI, Shinya OTSUKI, Junichi IWATANI, Masayoshi NABESHIMA
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Publication number: 20210400506Abstract: 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: ApplicationFiled: October 18, 2019Publication date: December 23, 2021Inventors: Masayoshi Nabeshima, Shinya Otsuki, Tomoaki Ogawa, Hiroshi Sakamoto, Makoto Umeuchi, Junichi Iwatani, Hiroyuki Nakamura
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Publication number: 20210392535Abstract: 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: ApplicationFiled: October 18, 2019Publication date: December 16, 2021Inventors: Masayoshi Nabeshima, Hiroyuki Nakamura, Tomoaki Ogawa, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto
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Publication number: 20210385782Abstract: 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: ApplicationFiled: September 27, 2019Publication date: December 9, 2021Inventors: Tomoaki Ogawa, Hiroyuki Nakamura, Shinya Otsuki, Makoto Umeuchi, Junichi Iwatani, Hiroshi Sakamoto, Masayoshi Nabeshima
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Publication number: 20210377776Abstract: 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: September 13, 2019Publication date: December 2, 2021Inventors: Junichi Iwatani, Hiroyuki Nakamura, Tomoaki Ogawa, Makoto Umeuchi, Shinya Otsuki, Hiroshi Sakamoto, Masayoshi Nabeshima
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Publication number: 20210368364Abstract: 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: ApplicationFiled: September 13, 2019Publication date: November 25, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Shinya OTSUKI, Tomoaki OGAWA, Makoto UMEUCHI, Junichi IWATANI, Hiroshi SAKAMOTO, Masayoshi NABESHIMA, Hiroyuki NAKAMURA
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Publication number: 20210227487Abstract: An object is to enable high-accuracy position estimation of a wireless terminal station by efficiently performing connection between a wireless base station and the wireless terminal station using multiple distributed antennas.Type: ApplicationFiled: May 23, 2019Publication date: July 22, 2021Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Masamichi HOSODA, Yasushi HANAKAGO, Tadashi MORI, Masaru MIYAMOTO, Tomoki MURAKAMI, Makoto UMEUCHI, Hiroshi SAKAMOTO, Tomoaki OGAWA
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Patent number: 8917642Abstract: An application to be booted is selected and operation of the application is controlled according to status of a link between an access point and a station. A station (STA) which can be connected to an access point (AP) includes a link information obtaining procedure which obtains link information including an identifier of the AP to which the STA is connected while the STA is connected to the AP and an application control procedure which selects an application to be booted according to the link information by referring to an action profile in which an identifier of the link information and an application to be booted are related and registered.Type: GrantFiled: December 18, 2008Date of Patent: December 23, 2014Assignee: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Tomohiro Tokuyasu, Takefumi Hiraguri, Toshihiro Manabe
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Patent number: 8630220Abstract: A probe request for an access point scan is transmitted over a specified radio channel according to an order of scanning, a connection candidate AP list including information indicating an access point which transmits a probe response and a received signal strength indication is generated when the probe response is received, the connection candidate AP list is referred to, one access point is selected from access points whose corresponding received signal strength indications exceed a predetermined threshold, connection processing is performed on the one access point being selected on the specified radio channel, and scanning is repeatedly performed by specifying a radio channel which is second in the order until scanning on all radio channels for which the order of scanning is set is completed when no probe response is received or the connection candidate AP list includes no received signal strength indication which exceeds the threshold.Type: GrantFiled: December 18, 2008Date of Patent: January 14, 2014Assignee: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Tomohiro Tokuyasu, Takefumi Hiraguri, Toshihiro Manabe
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Patent number: 8619709Abstract: In an access point scan method by which a station disconnected from an access point scans for a next access point to which the station can be connected at a predetermined scan interval, the station sets a shorter scan interval when a possibility of connection to the next access point to which the station can be connected is presumed to be high or a need for connection is presumed to be great, and sets a longer scan interval when the possibility of connection is presumed to be low or the need for connection is presumed to be small, based on one of information on the access point to which the station being connected just before disconnection and information on the station.Type: GrantFiled: December 12, 2008Date of Patent: December 31, 2013Assignee: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Takefumi Hiraguri, Tomohiro Tokuyasu, Toshihiro Manabe
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Patent number: 8284746Abstract: A wireless relay device connecting a wireless terminal to one of a plurality of access networks with different wireless interfaces and performing relay processing between the wireless terminal and one of the plurality of access networks being connected, the wireless relay device including a wireless interface on local side to be connected to the wireless terminal, a plurality of wireless interfaces on network side to be connected to the plurality of respective access networks, and a connection control section which boots the plurality of wireless interfaces on network side when the wireless interface on local side receives a signal from the wireless terminal, connects a wireless interface on network side establishing a fastest connection and the wireless interface on local side, and connects the wireless terminal to an access network corresponding to the wireless interface on network side establishing the fastest connection.Type: GrantFiled: August 28, 2008Date of Patent: October 9, 2012Assignees: Nippon Telegraph and Telephone Corporation, NTT Broadband Platform, Inc.Inventors: Tomohiro Tokuyasu, Makoto Umeuchi, Toshihiro Manabe, Hiroshi Hojo, Kengo Nagata, Tadao Kobayashi
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Publication number: 20110032857Abstract: An application to be booted is selected and operation of the application is controlled according to status of a link between an access point and a station. A station (STA) which can be connected to an access point (AP) includes a link information obtaining procedure which obtains link information including an identifier of the AP to which the STA is connected while the STA is connected to the AP and an application control procedure which selects an application to be booted according to the link information by referring to an action profile in which an identifier of the link information and an application to be booted are related and registered.Type: ApplicationFiled: December 18, 2008Publication date: February 10, 2011Applicant: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Tomohiro Tokuyasu, Takefumi Hiraguri, Toshihiro Manabe
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Publication number: 20100303051Abstract: A probe request for an access point scan is transmitted over a specified radio channel according to an order of scanning, a connection candidate AP list including information indicating an access point which transmits a probe response and a received signal strength indication is generated when the probe response is received, the connection candidate AP list is referred to, one access point is selected from access points whose corresponding received signal strength indications exceed a predetermined threshold, connection processing is performed on the one access point being selected on the specified radio channel, and scanning is repeatedly performed by specifying a radio channel which is second in the order until scanning on all radio channels for which the order of scanning is set is completed when no probe response is received or the connection candidate AP list includes no received signal strength indication which exceeds the threshold.Type: ApplicationFiled: December 18, 2008Publication date: December 2, 2010Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATIONInventors: Makoto Umeuchi, Tomohiro Tokuyasu, Takefumi Hiraguri, Toshihiro Manabe
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Publication number: 20100265885Abstract: In an access point scan method by which a station disconnected from an access point scans for a next access point to which the station can be connected at a predetermined scan interval, the station sets a shorter scan interval when a possibility of connection to the next access point to which the station can be connected is presumed to be high or a need for connection is presumed to be great, and sets a longer scan interval when the possibility of connection is presumed to be low or the need for connection is presumed to be small, based on one of information on the access point to which the station being connected just before disconnection and information on the station.Type: ApplicationFiled: December 12, 2008Publication date: October 21, 2010Applicant: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Takefumi Hiraguri, Tomohiro Tokuyasu, Toshihiro Manabe
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Publication number: 20100172285Abstract: A wireless relay device connecting a wireless terminal to one of a plurality of access networks with different wireless interfaces and performing relay processing between the wireless terminal and one of the plurality of access networks being connected, the wireless relay device including a wireless interface on local side to be connected to the wireless terminal, a plurality of wireless interfaces on network side to be connected to the plurality of respective access networks, and a connection control section which boots the plurality of wireless interfaces on network side when the wireless interface on local side receives a signal from the wireless terminal, connects a wireless interface on network side establishing a fastest connection and the wireless interface on local side, and connects the wireless terminal to an access network corresponding to the wireless interface on network side establishing the fastest connection.Type: ApplicationFiled: August 28, 2008Publication date: July 8, 2010Applicants: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, NTT BROADFORM PLATFORM, INC.Inventors: Tomohiro Tokuyasu, Makoto Umeuchi, Toshihiro Manabe, Hiroshi Hojo, Kengo Nagata, Tadao Kobayashi
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Patent number: 6512747Abstract: In an ATM transmission system in which a plurality of ATM cells are grouped to a packet with an end of ATM cell having an EOP (End Of Packet) flag, a transmitting station comprises a transmit buffer for storing temporarily ATM cells to be transmitted, a transmit cell process means which discards all the ATM cells in the group in case that a NAK response indicating loss or wrong reception of an ATM cell is received from a receiving station, and an EOP cell generator for transmitting an EOP cell which has said EOP flag in stead of the discarded ATM cells. As no ATM cell in a packet is transmitted after an erroneous ATM cell is detected, no useless ATM cell which would be discarded in a destination terminal equipment because of an erroneous ATM cell occupies a transmission line when an erroneous ATM cell is detected, and traffic is saved.Type: GrantFiled: March 4, 1999Date of Patent: January 28, 2003Assignee: Nippon Telegraph and Telephone CorporationInventors: Makoto Umeuchi, Masamitsu Nakura, Masahiro Umehira