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公开(公告)号：US20230412286A1
公开(公告)日：2023-12-21
申请号：US18459865
申请日：2023-09-01
Inventor： Hiroshi TAKAHASHI , Naganori SHIRAKATA , Tomohiro MURATA , Koji TAKINAMI , Yohei MORISHITA , Mei OKAMOTO
Abstract: In a radio network system containing a first radio apparatus that performs central control and a second radio apparatus, the second radio apparatus receives a first signal containing first identification information indicating a transmission source during a first reception period, receives a second signal containing second identification information indicating a transmission source during a second reception period, measures first reception information on reception of the first signal, measures second reception information on reception of the second signal, and transmits first measurement information containing the first reception information and the first identification information and second measurement information containing the second reception information and the second identification information to the first radio apparatus. When the first identification information and the second identification information are the same, the first radio apparatus compares the first reception information and the second reception information to determine whether a radio apparatus in an abnormal condition is present.
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2.发明申请公开(公告)号：US20220377644A1
公开(公告)日：2022-11-24
申请号：US17883293
申请日：2022-08-08
Inventor： Yohei MORISHITA , Naganori SHIRAKATA , Toshihiro TERAOKA , Tomohiro MURATA
Abstract: A radio communication apparatus includes reception circuitry, which, in operation, receives a first frame transmitted by a first node in a wireless mesh network; and control circuitry, which, in operation, configures a relay destination node as second information in case that the first frame includes first information indicating a third node that performs transmission in cooperation with a second node that transmits a radio signal to a radio link in which communication quality is less than a threshold in the wireless mesh network and in case that the third node included in the first information indicates the radio communication apparatus, the relay destination node being a node to which the second node transmits the first frame, the second information indicating a relay destination node to which the third node transmits the first frame.
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公开(公告)号：US20240401956A1
公开(公告)日：2024-12-05
申请号：US18690174
申请日：2022-03-15
Inventor： Mei OKAMOTO , Naganori SHIRAKATA
IPC: G01C21/20 , G06F40/40 , G06Q10/0631
Abstract: This path generation and display device is provided with: an extraction circuit that generates a first movement path taken by each of one or more workers from time-series data of position information indicating that the one or more workers performed work in a plurality of processes, and extracts behavioral characteristics associated with the times and processes for the movement path; a processing circuit that generates a second movement path to be recommended to the one or more workers, on the basis of the first movement path and the behavioral characteristics; and a monitor that displays the second movement path.
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公开(公告)号：US20240163645A1
公开(公告)日：2024-05-16
申请号：US18576283
申请日：2022-03-17
Inventor： Naganori SHIRAKATA , Mei OKAMOTO
IPC: H04W4/029
CPC classification number: H04W4/029
Abstract: This learning device is provided with: collection circuits (105, 106) for collecting step operation information indicating the operational state of each step, and reception level information that includes a reception level of a signal received by a first wireless station (104) from each of second wireless stations (103-1 to 103-3) installed for each step; and a learning circuit (108) for using teaching data formed of the step operation information and the reception level information linked to each other for each step to cause a generation model for estimating the operational state of a third wireless station (102) to learn.
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公开(公告)号：US20230231635A1
公开(公告)日：2023-07-20
申请号：US18189535
申请日：2023-03-24
Inventor： Mei OKAMOTO , Naganori SHIRAKATA , Tomohiro MURATA , Hiroshi TAKAHASHI , Yohei MORISHITA
IPC: H04B17/27 , H04B17/318 , G01S5/02
CPC classification number: H04B17/27 , H04B17/318 , G01S5/02525
Abstract: A mobile radio apparatus transmits to a plurality of fixed radio apparatuses, a fingerprint that indicates a reception strength distribution of radio signals from the plurality of fixed radio apparatuses. Each of the plurality of fixed radio apparatuses in which a learning model is installed inputs the fingerprint to the learning model and transmits a degree of proximity of the mobile radio apparatus output from the learning model to another one or more of the plurality of fixed radio apparatuses, and determines a position of the mobile radio apparatus, based on a first degree of proximity output from the learning model and a second degree of proximity received from the other one or more of the plurality of fixed radio apparatuses.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220361083A1
公开(公告)日：2022-11-10
申请号：US17872862
申请日：2022-07-25
Inventor： Tomohiro MURATA , Naganori SHIRAKATA
Abstract: A radio communication apparatus in a wireless mesh network includes reception circuitry, which, in operation, receives a radio signal; and control circuitry, which, in operation, determines a candidate radio device that is not selected as a forwarding destination of the received radio signal, based on destination information of the received radio signal and information on a group to which another candidate radio device capable of communication belongs.
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公开(公告)号：US20240019575A1
公开(公告)日：2024-01-18
申请号：US18356012
申请日：2023-07-20
Inventor： Yohei MORISHITA , Tomohiro MURATA , Naganori SHIRAKATA , Koji TAKINAMI , Mei OKAMOTO
CPC classification number: G01S17/04 , B65G43/00 , B65G2203/042
Abstract: This sensor includes: a sensing circuit for detecting an object moving along a path; a receiving circuit for receiving, from other sensors that have detected the object, identification information for the other sensors; and a control circuit for causing a storage circuit to store the most recently received identification information for another sensor in response to the detection of the object by the sensing circuit.
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公开(公告)号：US20230412289A1
公开(公告)日：2023-12-21
申请号：US18360574
申请日：2023-07-27
Inventor： Tomohiro MURATA , Naganori SHIRAKATA , Koji TAKINAMI
IPC: H04B17/318 , H04B17/27
CPC classification number: H04B17/318 , H04B17/27
Abstract: An information processing apparatus for associating an identifier of each of a plurality of sensors and a known installation position of a corresponding one of the plurality of sensors receives an identifier transmitted by a detection-complete sensor that has detected an object; associates, in a first path that is a part of the path, the identifier with an installation position of the detection-complete sensor in a reception order of a plurality of the identifiers; receives, from a detection-incomplete sensor that has not detected the object, reception strength information including an identifier of the detection-incomplete sensor and a reception strength of a signal of another one or more of the plurality of sensors in the detection-incomplete sensor; and associates, for the detection-incomplete sensor installed on a second path that is a rest of the path, the identifier of the detection-incomplete sensor and an installation position of the detection-incomplete sensor.
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公开(公告)号：US20230297854A1
公开(公告)日：2023-09-21
申请号：US18324051
申请日：2023-05-25
Inventor： Naganori SHIRAKATA , Zhiqi LIU , Tenta KOMATSU , Takayuki TSUKIZAWA
IPC: G06N5/022
CPC classification number: G06N5/022
Abstract: The learning apparatus according to one exemplary embodiment includes: a pattern extractor that extracts a time fluctuation pattern of an amplitude of a feature frequency from state observation signal data up to a first time point, the state observation signal data indicating an operation state of equipment, the feature frequency being associated with a part of the equipment; a training data generator that generates, based on the time fluctuation pattern of the amplitude of the feature frequency, simulated state observation signal data representing the time fluctuation pattern of the amplitude of the feature frequency at and after the first time point, and generates training data including the simulated state observation signal data; and a learner that generates a classification model for determination of a failure state of the part of the equipment using the training data.
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10.发明申请公开(公告)号：US20220330409A1
公开(公告)日：2022-10-13
申请号：US17586615
申请日：2022-01-27
Inventor： Junichi MORITA , Naganori SHIRAKATA
IPC: H05B47/19 , H04W4/029 , H04W64/00 , H04W24/08 , H04B17/318
Abstract: A position estimation apparatus includes a selection circuit and an estimation circuit. The selection circuit selects at least one radio electronic device as an anchor used for estimating a position of a mobile terminal, based on first information and second information, the first information being related to an arrangement in a first region in which at least one of radio electronic devices including the at least one radio electronic device is arranged, the second information being related to a second region within which the mobile terminal is movable in the first region. The estimation circuit estimates a position of the mobile terminal based on third information related to radio communication quality between the anchor and the mobile terminal and on information related to the anchor in the first information.
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