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公开(公告)号：US12192301B2
公开(公告)日：2025-01-07
申请号：US18220072
申请日：2023-07-10
Inventor： Takeshi Kishikawa , Yoshihiro Ujiie , Ryo Hirano
IPC: H04L67/562 , H04L67/12 , H04L67/51
Abstract: A service broker that is connected to each of a server unit and a client unit in a service offer system for offering a service from the server unit to the client unit by way of a service oriented communication includes: a communication controller that receives a frame for use in offer of the service, from the server unit or the client unit; and a service manager that determines whether a combination of a service identifier included in the frame received by the communication controller, an identifier indicating one of a transmission source and a destination of the frame, and a type of the frame is appropriate, and provides output of a result of the determination.
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公开(公告)号：US20240391401A1
公开(公告)日：2024-11-28
申请号：US18796671
申请日：2024-08-07
Inventor： Yoshihiro UJIIE , Takeshi Kishikawa , Ryo Hirano
IPC: B60R16/023 , H04L12/40 , 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：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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Patent Agency Ranking
14.发明授权公开(公告)号：US12021886B2
公开(公告)日：2024-06-25
申请号：US17222325
申请日：2021-04-05
Inventor： Ryo Hirano , Takeshi Kishikawa
CPC classification number: H04L63/1425 , G07C5/008 , G07C5/0808 , G07C5/0816 , H04L12/40169 , H04L2012/40215 , H04L2012/40273
Abstract: A vehicle log transmission device includes: a vehicle log obtainer that obtains the vehicle log; a vehicle state extractor that extracts a vehicle state from the obtained vehicle log; difference generation log storage that stores a list of difference generation logs, each being a vehicle log for each of vehicle states shared between the vehicle log transmission device and a vehicle log analysis server; a difference generation log selector that selects a difference generation log from the list in accordance with the extracted vehicle state; a difference log generator that generates a difference log based on the obtained vehicle log and the selected difference generation log; and a difference log transmitter that transmits, to the vehicle log analysis server, the generated difference log and a difference generation log identifier corresponding to the selected difference generation log.
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公开(公告)号：US12003521B2
公开(公告)日：2024-06-04
申请号：US17082431
申请日：2020-10-28
Inventor： Takeshi Kishikawa , Yoshihiro Ujiie , Ryo Hirano , Tohru Wakabayashi
CPC classification number: H04L63/1425 , H04L63/20
Abstract: An anomaly detection device included in a communication network adopting a time-triggered protocol based on a time slot includes: a frame transceiver that receives frames; and an anomaly detector that detects an occurrence of an anomalous frame in accordance with a time slot among a plurality of time slots included in a cycle and the number of repeated cycles of the cycle for each frame. The anomaly detector detects an occurrence of an anomalous frame by verifying a statistic on the frames received while the cycle is repeated a predetermined number of times, which is at least once, against a rule indicating a reference range of the statistic.
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公开(公告)号：US11995181B2
公开(公告)日：2024-05-28
申请号：US17380209
申请日：2021-07-20
Inventor： Takeshi Kishikawa , Ryo Hirano , Yoshihiro Ujiie , Tomoyuki Haga
CPC classification number: G06F21/552 , B60W40/09 , B60W40/12 , G06F21/14 , G06F21/55 , H04L63/1425 , H04W4/48
Abstract: A vehicle surveillance device for an in-vehicle network system that includes one or more electronic control units includes: a frame transmitter and receiver that receives a frame flowing over the in-vehicle network system; and a score calculator that detects a suspicious behavior different from a normal driving behavior based on the frame received by the frame transmitter and receiver and vehicle data including information on one or more frames received by the frame transmitter and receiver prior to receiving the frame, and calculates, based on a detection result, a score indicating a likelihood that reverse engineering has been performed on a vehicle provided with the in-vehicle network system.
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公开(公告)号：US11929895B2
公开(公告)日：2024-03-12
申请号：US17854182
申请日：2022-06-30
Inventor： Takeshi Kishikawa , Ryo Hirano , Yoshihiro Ujiie
IPC: H04L43/026 , G07C5/08 , H04L67/12
CPC classification number: H04L43/026 , G07C5/0858 , H04L67/12
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：US11829472B2
公开(公告)日：2023-11-28
申请号：US17380228
申请日：2021-07-20
Inventor： Ryo Hirano , Takeshi Kishikawa , Yoshihiro Ujiie , Tomoyuki Haga
CPC classification number: G06F21/56 , G06F21/552
Abstract: An anomalous vehicle detection server includes an anomaly score calculator that detects a suspicious behavior different from a predetermined driving behavior based on pieces of vehicle information that are received from a plurality of vehicles, respectively, and are each based on a vehicle log including the content of an event that has occurred in a vehicle system provided in the vehicle, and acquires an anomaly score of each of the plurality of vehicles that indicates a likelihood that reverse engineering is performed on the vehicle; and an anomalous vehicle determiner that determines whether one vehicle of the plurality of vehicles is an anomalous vehicle based on the anomaly score of the one vehicle and a statistical value of the anomaly scores of two or more vehicles of the plurality of vehicles.
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