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公开(公告)号：US20210001793A1
公开(公告)日：2021-01-07
申请号：US17031224
申请日：2020-09-24
Inventor： Yoshihiro UJIIE , Takeshi KISHIKAWA , Ryo HIRANO
IPC: B60R16/023 , H04L12/44 , H04L12/64
Abstract: An anomaly handling method in an in-vehicle network includes: transmitting and receiving frames; detecting a frame having an anomaly; and switching, when the anomaly is detected in the detecting, a transmission timing of the frame in which the anomaly is detected. The switching includes changing a switched transmission timing to which the transmission timing is switched, according to predetermined information.
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公开(公告)号：US20200351168A1
公开(公告)日：2020-11-05
申请号：US16929691
申请日：2020-07-15
Inventor： Ryo HIRANO , Takamitsu SASAKI
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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公开(公告)号：US20240086290A1
公开(公告)日：2024-03-14
申请号：US18519690
申请日：2023-11-27
Inventor： Ryo HIRANO , Yoshihiro UJIIE , Takeshi KISHIKAWA , Tomoyuki HAGA , Jun ANZAI , Yoshiharu IMAMOTO
CPC classification number: G06F11/301 , B60W50/04
Abstract: A monitoring device includes three or more monitors each monitoring, as a monitoring target, at least one of software and a communication log. The three or more monitors include a first monitor operating with a first execution privilege, a second monitor operating with a second execution privilege having a reliability level lower than the first execution privilege, and a third monitor operating with a third execution privilege having a reliability level that is the same as the second execution privilege or that is lower than the second execution privilege. The first monitor monitors software of the second monitor, and at least one of the first monitor or the second monitor monitors software of the third monitor.
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公开(公告)号：US20230205181A1
公开(公告)日：2023-06-29
申请号：US18112311
申请日：2023-02-21
Inventor： Takeshi KISHIKAWA , Yoshihiro UJIIE , Ryo HIRANO
IPC: G05B19/4155 , G05D1/00
CPC classification number: G05B19/4155 , G05D1/0038 , G05D1/0061 , G05B2219/50391
Abstract: A control mode switching apparatus switches a control mode of a robot. The control mode includes at least two of a remote control mode, a manual control mode, and an autonomous control mode. The control mode switching apparatus includes: an anomaly detector that, based on a communication message on a control network in the robot and the control mode, obtains a detection result of at least one anomaly among a user anomaly caused by user control, a robot anomaly caused by the control network, an operating environment anomaly caused by an operating environment of the robot, and an application anomaly caused by an application; and a switcher that calculates, for each type of anomaly detected, a score indicating a likelihood that the type is a cause of the anomaly in the robot, and switches the control mode based on the score calculated.
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公开(公告)号：US20210051090A1
公开(公告)日：2021-02-18
申请号：US17089277
申请日：2020-11-04
Inventor： Takeshi KISHIKAWA , Yoshihiro UJIIE , Ryo HIRANO
IPC: H04L12/755 , H04L12/717 , H04L12/44 , H04L12/40 , H04L12/46
Abstract: A secure star coupler in a communication network adopting a time-triggered protocol based on a time slot include: transceivers each of which is connected to one of branches and transmits and receives signals; a routing table holder that holds a predetermined rule indicating a correspondence between a time slot and a branch; and a router that routes a signal received from a first branch to another branch unless a no-transfer condition is satisfied. The no-transfer condition includes a condition that the predetermined rule is not followed by the first branch and a condition that routing of a signal received from a second branch different from the first branch has started in the time slot.
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Patent Agency Ranking
公开(公告)号：US20240086226A1
公开(公告)日：2024-03-14
申请号：US18517128
申请日：2023-11-22
Inventor： Yoshihiro UJIIE , Ryo HIRANO , Takeshi KISHIKAWA
IPC: G06F9/455 , B60R16/023 , G06F21/57
CPC classification number: G06F9/45558 , B60R16/0239 , G06F21/57 , G06F2009/45587 , G06F2009/45591 , G06F2221/033
Abstract: A monitoring system is for monitoring a vehicle or a monitoring target that operates inside the vehicle, and the monitoring system includes: a reliability manager that manages reliability indicating a security protection state of the monitoring target, according to a vehicle event of the vehicle; and a function restrictor that places a restriction on at least a part of functions of the monitoring target, according to the reliability.
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公开(公告)号：US20220337494A1
公开(公告)日：2022-10-20
申请号：US17854182
申请日：2022-06-30
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE
IPC: H04L43/026 , H04L67/12 , G07C5/08
Abstract: A communication log aggregation device includes: a communicator that obtains flow information including one or more flow records and first statistical information for each flow from each of collection devices, the one or more flow records each including flow identification information included in a message received by at least one observer that is disposed in a control network system, the flow being classified based on the flow identification information, the collection devices each collecting the one or more flow records and the first statistical information for each flow from the message received by the observer; and a flow aggregator that generates aggregated flow information by performing at least one of the following: (i) selecting at least one of the one or more flow records, (ii) adding second statistical information, and (iii) deleting at least one of the one or more flow records, and outputs the aggregated flow information.
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公开(公告)号：US20220263849A1
公开(公告)日：2022-08-18
申请号：US17739935
申请日：2022-05-09
Inventor： Yoshihiro UJIIE , Takeshi KISHIKAWA , Ryo HIRANO , Tomoyuki HAGA
Abstract: An anomaly detection method in an in-vehicle network system in which a plurality of ECUs are connected. Among the plurality of ECUs, at least one ECU includes a detector which determines whether a received message satisfies a predetermined rule, and the at least one ECU transmits the detection result determined to a network. The anomaly detection method includes (i) receiving the detection result from the network, and storing the detection result received in a memory, (ii) determining whether the detection result is received within a predetermined time, and storing a determination result in the memory in association with the detection result, and (iii) outputting a message to the outside, the message including the detection result in association with the determination result.
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公开(公告)号：US20220254198A1
公开(公告)日：2022-08-11
申请号：US17728085
申请日：2022-04-25
Inventor： Ryo HIRANO , Takeshi KISHIKAWA , Yoshihiro UJIIE , Tomoyuki HAGA
Abstract: A vehicle log transmission device includes: an anomaly detector that obtains a vehicle log from at least one electronic control unit, detects an anomaly based on log information in the vehicle log, and extracts log information in which the anomaly is detected as an anomaly log; an anomaly notifier that transmits the anomaly log to a server; a change instructor that, based on a vehicle state extracted from the vehicle log, transmits, to the at least one electronic control unit, a change instruction to change a save priority level of the log information included in the vehicle log; and a vehicle log request responder that, when a vehicle log request is received, obtains the vehicle log including log information saved based on the save priority level changed in response to the change instruction, and transmits the vehicle log obtained to the server.
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公开(公告)号：US20220182404A1
公开(公告)日：2022-06-09
申请号：US17665218
申请日：2022-02-04
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Tomoyuki HAGA , Yoshihiro UJIIE
IPC: H04L9/40
Abstract: The control network system is connected to electronic control unit(s) and a communication device, and includes security sensor(s) that transmits a security alert indicating that an indication of a security breach is detected to the network, if the indication is detected in at least one of the network, the electronic control unit(s), or the communication device. The intrusion path analysis device includes: an alert obtainer that obtains the security alert from the security sensor(s); an event obtainer that obtains an event history of an event that occurs in the control network system; and an intrusion path analyzer that performs an analysis on an intrusion path of an attack on the basis of the security alert, the event history, and an intrusion depth indicating an intrusion level to be assumed in a case the security alert occurs, and that outputs a result of the analysis.
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