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公开(公告)号：US20210184886A1
公开(公告)日：2021-06-17
申请号：US17169958
申请日：2021-02-08
Inventor： Manabu MAEDA , Takamitsu SASAKI , Tomoyuki HAGA , Hideki MATSUSHIMA
Abstract: A network hub is provided for an onboard network system. The onboard network system includes first and second networks for transmission of first-type and second-type frames following first and second communication protocols. The network hub includes a receiver that receives a first-type frame. A processor determines whether or not the first-type frame received by the receiver includes first information that is a base for a second-type frame to be transmitted to the second network, to obtain a determination result, and selects a port to send a frame based on the first-type frame based on the determination result. A transmitter sends the frame based on the first-type frame to a wired transmission path connected to the port selected by the processor based on the first-type frame received by the receiver.
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公开(公告)号：US20200310782A1
公开(公告)日：2020-10-01
申请号：US16902780
申请日：2020-06-16
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Jun ANZAI , Toshihisa NAKANO , Tomoyuki HAGA , Manabu MAEDA , Takeshi KISHIKAWA
Abstract: A gateway device is connected via one or more networks to electronic controllers on-board a vehicle. The gateway device includes one or more memories, and circuitry that acquires firmware update information. The circuitry determines whether or not a first electronic controller satisfies a second condition based on second information about the first electronic controller, where the second information is whether the first electronic controller includes a firmware cache for performing a pre-update firmware cache operation. The circuitry also causes, when the second condition is not satisfied, the gateway device to execute a proxy process, where the gateway device requests the first electronic controller to transmit boot ROM data to the gateway device, creates updated boot ROM data with the updated firmware, and transmits the updated boot ROM data to the first electronic controller that updates the boot ROM and resets the first electronic controller with the updated firmware.
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23.发明申请公开(公告)号：US20200053112A1
公开(公告)日：2020-02-13
申请号：US16654728
申请日：2019-10-16
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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24.发明申请公开(公告)号：US20190263336A1
公开(公告)日：2019-08-29
申请号：US16413035
申请日：2019-05-15
Inventor： Tomoyuki HAGA , Hideki MATSUSHIMA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: B60R16/023 , H04W12/12 , G08G1/00 , G08G1/16
Abstract: An anomaly handling method using a roadside device is disclosed. The method includes receiving, from a vehicle, an anomaly detection notification, which includes level information indicating a level affecting safety, and a location of the vehicle. The method also includes obtaining a location of the roadside device and determining whether a distance between the location of the vehicle and the location of the roadside device is within a predetermined range. When the distance is within the predetermined range and shorter than a first predetermined distance, transmitting the received anomaly detection notification externally from the roadside device. When the distance is within the predetermined range and is longer than or equal to the first predetermined distance, changing to decrement a level indicated by the level information, and transmitting changed anomaly detection notification. When the distance is not within the predetermined range, not transmitting the received anomaly detection notification.
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25.发明公开公开(公告)号：US20240236115A1
公开(公告)日：2024-07-11
申请号：US18584704
申请日：2024-02-22
Inventor： Yoshihiro UJIIE , Jun ANZAI , Yoshihiko KITAMURA , Masato TANABE , Hideki MATSUSHIMA , Tomoyuki HAGA , Takeshi KISHIKAWA , Ryota SUGIYAMA
IPC: H04L9/40 , B60R16/023 , H04L12/40 , H04L67/12
CPC classification number: H04L63/123 , B60R16/023 , H04L12/40 , H04L63/08 , H04L63/102 , H04L63/20 , H04L67/12 , H04L2012/40215 , H04L2012/40273
Abstract: An electronic control unit is connected to a network in an in-vehicle network system. The electronic control unit includes a first control circuit that operates on a first operating system and a second control circuit that operates on a second operating system. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on frames to determine conformity of the frames with a first rule. Upon determining that the frames conform to the first rule, the second control circuit transmits contents of the frames to the first control circuit. The first control circuit performs a second determination process on the contents of the frames to determine conformity with a second rule. The second rule is different from the first rule.
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Patent Agency Ranking
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：US20240039932A1
公开(公告)日：2024-02-01
申请号：US18376672
申请日：2023-10-04
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: A module for a vehicle includes: a first communication module that transmits and receives first data to and from a first in-vehicle module; a second communication module that transmits and receives second data to and from a second in-vehicle module; and a control module that controls relay of third data among the first communication module and the second communication module. In a case where reception data received by the control module from the first or second communication module is unauthorized, the control module stops relaying the third data in accordance with a traveling state of the vehicle satisfying a predetermined condition, The traveling state includes: the vehicle being stopped; a vehicle speed being at or below a predetermined speed; brakes being applied; a hazard indicator being on; a driver being in a state capable of driving; and/or self-driving functions being in an off state.
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公开(公告)号：US20210385244A1
公开(公告)日：2021-12-09
申请号：US17406474
申请日：2021-08-19
Inventor： Takeshi KISHIKAWA , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Takamitsu SASAKI
IPC: H04L29/06 , B60R16/023 , G07C5/00
Abstract: A gateway that notifies a fraud detection server located outside a vehicle of information about an in-vehicle network system including an in-vehicle network includes: a priority determiner that determines a priority using at least one of: a state of the vehicle including the in-vehicle network system; an identifier of a message communicated on the in-vehicle network; and a result of fraud detection performed on the message; a frame transmitter-receiver that transmits and receives the message communicated on the in-vehicle network; a frame interpreter that extracts information about the in-vehicle network based on the message received by the frame transmitter-receiver; and a frame uploader that notifies the fraud detection server of notification information including the priority and the information about the in-vehicle network.
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公开(公告)号：US20210273966A1
公开(公告)日：2021-09-02
申请号：US17322371
申请日：2021-05-17
Inventor： Takamitsu SASAKI , Tomoyuki HAGA , Daiki TANAKA , Makoto YAMADA , Hisashi KASHIMA , Takeshi KISHIKAWA
Abstract: In an anomaly detection method that determines whether each frame in observation data constituted by a collection of frames sent and received over a communication network system is anomalous, a difference between a data distribution of a feature amount extracted from the frame in the observation data and a data distribution for a collection of frames sent and received over the communication network system, obtained at a different timing from the observation data, is calculated. A frame having a feature amount for which the difference is predetermined value or higher is determined to be an anomalous frame. An anomaly contribution level of feature amounts extracted from the frame determined to be an anomalous frame is calculated, and an anomalous payload part, which is at least one part of the payload corresponding to the feature amount for which the anomaly contribution level is at least the predetermined value, is output.
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30.发明申请公开(公告)号：US20210105143A1
公开(公告)日：2021-04-08
申请号：US17101876
申请日：2020-11-23
Inventor： Yuji UNAGAMI , Manabu MAEDA , Tomoyuki HAGA , Hideki MATSUSHIMA , Jun ANZAI
Abstract: A method for verifying content data to be used in a vehicle is provided. The method includes acquiring content data, acquiring, from partial data divided from the content data, a respective plurality of first hash values, acquiring a signature generated by using the first hash values and a key, acquiring state information that indicates a state of a vehicle, determining an integer N that is greater than or equal to one based on the acquired state information, generating, from N pieces of partial data included in the partial data, respective second hash values, verifying the content data by using each of (a) a subset of the plurality of first hash values respectively generated from partial data other than the N pieces of partial data, (b) the second hash values, and (c) the signature, and outputting information that indicates a result of the verifying.
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