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公开(公告)号：US12261857B2
公开(公告)日：2025-03-25
申请号：US17852038
申请日：2022-06-28
Inventor： Takashi Ushio , Takamitsu Sasaki
IPC: H04L9/40
Abstract: An attack detection method includes determining a sampling rule including a sampling interval and a sampling time on the basis of at least one of a statistic indicating a variation in sensor values included in the sensor data or event information on the mobility entity, which indicates the timing of a change in sensor values; generating sampling data including two or more sensor values selected from the sensor data on the basis of the sampling interval and the sampling time, first order information, and second order information; and calculating a first anomaly score indicating the degree of anomalies in the evaluation target data and a second anomaly score indicating the degree of anomalies in the evaluation target data, determining on the basis of the calculated first and second anomaly scores whether the evaluation target data has resulted from the attack, and outputting a determination result.
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公开(公告)号：US12155682B2
公开(公告)日：2024-11-26
申请号：US17744862
申请日：2022-05-16
Inventor： Yuishi Torisaki , Tomoyuki Haga , Takamitsu Sasaki , Takeshi Kishikawa , Hideki Matsushima
Abstract: A vehicle anomaly detection server includes: a communicator that communicates with a vehicle to receive a log of an in-vehicle network in the vehicle; a processor; and a memory including at least one set of instructions that, when executed by the processor causes the processor to perform operations including: selecting, when information indicating that an anomaly is occurring to a first vehicle among vehicles is obtained by the processor, an anomaly-related vehicle from among the vehicles based on the anomaly, the first vehicle being the vehicle that communicates with the communicator; transmitting, to the anomaly-related vehicle via the communicator, a first request to transmit a log of an in-vehicle network in the anomaly-related vehicle; and determining whether an anomaly is occurring to the anomaly-related vehicle, based on information indicated by the log transmitted from the anomaly-related vehicle and received by the communicator.
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公开(公告)号：US11824871B2
公开(公告)日：2023-11-21
申请号：US16730970
申请日：2019-12-30
Inventor： Yuishi Torisaki , Takamitsu Sasaki , Tomoyuki Haga
CPC classification number: H04L63/1416 , G07C5/008 , G07C5/0808 , H04L12/40013 , H04L12/40026 , H04L63/0236 , H04L63/10 , H04L63/126 , H04W80/02 , H04L2012/40215 , H04L2012/40273
Abstract: An in-vehicle relay device for a vehicle is provided. The in-vehicle relay device includes a first communication circuit that transmits and receives first data to and from a first in-vehicle equipment in the vehicle. A second communication circuit transmits and receives second data to and from a second in-vehicle equipment in the vehicle. A control circuit controls relay of third data among the first communication circuit and the second communication circuit. In a case where reception data received by the control circuit from the first communication circuit or the second communication circuit is unauthorized, the control circuit stops relaying the third data in accordance with a traveling state of the vehicle.
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公开(公告)号：US11431579B2
公开(公告)日：2022-08-30
申请号：US16929691
申请日：2020-07-15
Inventor： Ryo Hirano , Takamitsu Sasaki
IPC: H04L41/142 , H04L12/40 , H04L67/131
Abstract: An IDS ECU includes: an anomalous frame detector that detects an anomalous frame; a connector communicator that transmits an anomaly-related request frame to a connector that is a transmitter of the anomalous frame, to request a response from the connector, and receives, from the connector, an anomaly-related response frame generated by the connector based on the anomaly-related request frame and indicating the transmitter; a network anomaly determiner that calculates, from the anomaly-related response frame, the number of anomalous connectors indicating the number of connectors that transmitted the anomaly-related response frame, and determines that an in-vehicle network system is: in a first anomalous state when the number is 0; and in a second anomalous state when the number is not 0; and a network anomaly handler that handles the first or second anomalous state determined by the network anomaly determiner.
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5.发明授权公开(公告)号：US10601852B2
公开(公告)日：2020-03-24
申请号：US16255877
申请日：2019-01-24
Inventor： Ryota Takahashi , Takamitsu Sasaki
IPC: H04L29/06 , G06F21/55 , G06K9/62 , G07C5/00 , H04L29/08 , G06N20/00 , H04L12/40 , G06N99/00 , G07C9/00
Abstract: Provided is an information processing device that includes a processor and has a capability to detect abnormalities on an in-vehicle network that may be caused by an attack. The processor receives input of data elements to be used as training data, normalizes the training data so as to be distributed within a first region, divides a multi-dimensional second region that encompasses the first region into third regions that are hypercubes of equal sizes, obtains S data elements that are contained by each of the third regions, and for each third region that includes a number of data elements that is less than a first threshold value T, adds noise elements that are vectors with a uniform distribution to the third regions, generates noise-added training data including the vectors in the second region, and generates and outputs Isolation Forest learning model data by using the generated noise-added training data.
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Patent Agency Ranking
公开(公告)号：US10534529B2
公开(公告)日：2020-01-14
申请号：US15659985
申请日：2017-07-26
Inventor： Takamitsu Sasaki , Kohei Tahara
IPC: G05B15/00 , G06F3/0488 , G06F3/0481 , H04L12/28
Abstract: A control method of the disclosure causes a computer of an information apparatus to: display a display screen representing a floor plan for one floor including at least two rooms on the display; display device icons representing target devices within regions of the respective rooms included in the floor plan, the device icons being initially displayed at positions within the regions of the respective rooms; and when it is sensed that an illumination icon representing an illumination device among the one or more target devices is selected within a region of any room of the at least two rooms, display a region corresponding to the room, in which it is sensed that the illumination icon is selected, with brightness not less than specific brightness, in a case where power for the illumination device installed in the room, in which it is sensed that the illumination icon is selected, is on.
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公开(公告)号：US10454781B2
公开(公告)日：2019-10-22
申请号：US14325755
申请日：2014-07-08
Inventor： Takamitsu Sasaki , Kohei Tahara
IPC: H04L12/24 , G08C17/02 , H04L12/28 , G06F3/0481 , G06F3/0484 , G06F3/0487
Abstract: When selection of a device icon representing one target device among one or more target devices is sensed in a region corresponding to one room included in a floor plan, a control screen for operating, or confirming a state of, the one target device corresponding to the sensed device icon is displayed on a display as overlapped on a display screen representing the floor plan, and device icons representing the target devices installed in the one room are moved out of a display region of the control screen.
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公开(公告)号：US10102554B2
公开(公告)日：2018-10-16
申请号：US14722633
申请日：2015-05-27
Inventor： Ryuji Inoue , Takamitsu Sasaki
Abstract: A method includes: inputting information indicating power usage; generating a differential value between i) a first cumulative value of power usage corresponding to a first user ID and ii) a second cumulative value of power usage corresponding to a second user ID in a prescribed period; generating a first conversion value by converting the differential value to a use time of a first electric home appliance; generating a first electricity bill value by converting the differential value to an electricity bill; generating display data indicating that the first electricity bill value corresponds to the first conversion value; and transmitting the display data.
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公开(公告)号：US10074116B2
公开(公告)日：2018-09-11
申请号：US14722709
申请日：2015-05-27
Inventor： Ryuji Inoue , Takamitsu Sasaki
Abstract: A method includes: inputting information indicating power usage corresponding to each of the plurality of user IDs; generating a differential value between i) a first cumulative value of power usage corresponding to a first user ID and ii) a second cumulative value of power usage corresponding to a second user ID in a prescribed period; generating a first conversion value by converting the differential value to a use time of a first electric home appliance among electric home appliances corresponding to the first user ID; generating display data indicating that the differential value corresponds to the first conversion value; and transmitting the display data to an information terminal device corresponding to the first user ID.
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公开(公告)号：US10067640B2
公开(公告)日：2018-09-04
申请号：US14541545
申请日：2014-11-14
Inventor： Takamitsu Sasaki , Minehisa Nagata
IPC: G06F3/0482 , G06F17/30 , G06F3/0488 , H04L29/08 , H04L12/28 , H04L12/64 , F24F11/30 , G06F3/0484 , F24F110/10 , F24F11/56 , F24F11/52
CPC classification number: G06F3/0482 , F24F11/30 , F24F11/52 , F24F11/56 , F24F2110/10 , G05B2219/2642 , G06F3/04847 , G06F3/0488 , H04L12/2803 , H04L12/6418 , H04L67/025
Abstract: In the case where selection of an icon representing an air conditioner is sensed in a region corresponding to a first room on the floor plan that is larger than a predetermined area, the region corresponding to the first room is switched to an adjustment region for changing the set temperature of the air conditioner. In the case where selection of the icon representing the air conditioner is sensed in a region corresponding to a second room on the floor plan that is equal to or smaller than the predetermined area, an adjustment screen for changing the set temperature of the air conditioner installed in the region corresponding to the second room is displayed on the display screen.
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