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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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22.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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公开(公告)号：US20240086541A1
公开(公告)日：2024-03-14
申请号：US18515925
申请日：2023-11-21
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE
CPC classification number: G06F21/57 , G06F21/64 , G06F2221/033
Abstract: An integrity verification device, in which software is executed by one of one or more electronic control units connected to an in-vehicle network system, includes: a verification schedule determiner that determines a verification timing at which to verify the integrity of the software; an integrity verifier that, for the software, determines, at the verification timing determined for the software, whether first integrity information, that is information for verifying the integrity of the software and that corresponds to at least part of the software corresponding to a verification scope, matches second integrity information, that is information calculated from at least part of the software at the verification timing, and determines that the integrity of the software is ensured when the first integrity information and the second integrity information match; and a verification priority determiner that determines a verification priority that affects determining of the verification timing or the verification scope.
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公开(公告)号：US20240053977A1
公开(公告)日：2024-02-15
申请号：US18495971
申请日：2023-10-27
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Jun ANZAI , Toshihisa NAKANO , Tomoyuki HAGA , Manabu MAEDA , Takeshi KISHIKAWA
CPC classification number: G06F8/65 , G06F8/654 , B60R16/02 , B60R16/023 , G06F11/00 , G06F11/1433 , H04L12/40006 , H04L12/4625 , H04W4/48
Abstract: A gateway device is connected to a plurality of electronic controllers on-board a vehicle. The gateway device acquires firmware update information, which includes at least a part of updated firmware to be applied to a first electronic controller, patch data, and information indicating where to apply the patch data. When the gateway device determines that the first electronic controller does not include a firmware cache for performing a pre-update firmware cache operation, the gateway device executes a proxy process. In this regard, the gateway device requests the first electronic controller to transmit boot ROM data to the gateway device, merges the patch data and existing firmware to create updated boot ROM data with updated firmware, and transmits the updated boot ROM data to the first electronic controller that updates the boot ROM data and resets the first electronic controller with the updated firmware.
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25.发明申请公开(公告)号：US20230129603A1
公开(公告)日：2023-04-27
申请号：US18086282
申请日：2022-12-21
Inventor： Yoshihiro UJIIE , Jun ANZAI , Yoshihiko KITAMURA , Masato TANABE , Takeshi KISHIKAWA
IPC: H04L9/08 , H04L9/40 , B60R16/023
Abstract: A key management method serves as an electronic control unit (ECU) in an onboard network system having a plurality of ECUs that perform communication by frames via a network. The method includes storing, in a first-type ECU, a shared key to be mutually shared with second-type ECUs, and executing encryption processing regarding a framed transmitted or received via the network, based on the shared key. The method further includes executing, by the first-type ECU, inspection of a security state of the shared key stored by the second type ECUs in a case where a vehicle is in at least one of the following particular states, including immediately after the vehicle is not driving and is entering the accessory-on state, immediately after the vehicle is not driving and the vehicle is entering the accessory-off state, and immediately after the vehicle engine is started.
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Patent Agency Ranking
26.发明申请公开(公告)号：US20220116405A1
公开(公告)日：2022-04-14
申请号：US17559749
申请日：2021-12-22
Inventor： Yoshihiro UJIIE , Jun ANZAI , Yoshihiko KITAMURA , Masato TANABE , Hideki MATSUSHIMA , Tomoyuki HAGA , Takeshi KISHIKAWA , Ryota SUGIYAMA
IPC: H04L67/12 , H04L12/40 , B60R16/023
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 and a second control circuit. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on a frame to determine conformity of the frame with a first rule. Upon determining that the frame conforms to the first rule, the second control circuit transmits the frame to the first control circuit. The first control circuit performs a second determination process on the frame to determine conformity of the frame with a second rule. The second rule is different from the first rule.
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公开(公告)号：US20210226966A1
公开(公告)日：2021-07-22
申请号：US17224883
申请日：2021-04-07
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE
Abstract: In an anti-fraud control system, a first error monitoring device includes a first frame transmitting and receiving unit that receives a frame flowing on the on-board network; and a first error detector that causes transmission of an error notification frame for notifying of an occurrence of an error in the frame when detecting the occurrence of the error in the frame received by the first frame transmitting and receiving unit. Each of second error monitoring devices includes: a second frame transmitting and receiving unit that receives the error notification frame; and a second error detector that regards, as a frame to be invalidated, the frame subjected to the error and included in the received error notification frame, and shifts the second error monitoring device to an invalidation mode for invalidating reception of subsequent frames, if no error is detected in an own branch with respect to the frame.
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公开(公告)号：US20210203525A1
公开(公告)日：2021-07-01
申请号：US17201797
申请日：2021-03-15
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Toshihisa NAKANO , Tohru WAKABAYASHI , Hiroshi AMANO , Tomoyuki HAGA , Takeshi KISHIKAWA
IPC: H04L12/40 , H04L29/06 , H04L12/46 , H04B1/3822 , H04L12/66
Abstract: A gateway device for a vehicle network system installed in a vehicle is provided. The vehicle network system includes a network, an electronic control unit connected to the network, and the gateway device connected to the first network and configured to communicate outside the vehicle. The gateway device receives a first frame from outside the vehicle; determines whether or not the first frame is appropriate; generates a second frame when the first frame is not determined to be appropriate; and transmits the second frame to the network. The second frame includes control information and additional information based on content of the first frame. The control information restricts processing of the additional information included in the second frame by the electronic control unit, after the second frame is received by the electronic control unit.
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公开(公告)号：US20210144124A1
公开(公告)日：2021-05-13
申请号：US17152286
申请日：2021-01-19
Inventor： Manabu MAEDA , Jun ANZAI , Yoshihiro UJIIE , Masato TANABE , Takeshi KISHIKAWA
Abstract: A security apparatus includes a receiver that receives a frame front at least one network, a parameter storage that stores at least one examination parameter defining a content of an examination on a frame, and processing circuitry that performs operations. The operations include judging whether a predetermined condition is satisfied for the frame received by the receiver. When the predetermined condition is satisfied, updating the stored at least one examination parameter, and when the predetermined condition is not satisfied, not updating the stored at least one examination parameter. The operations also include executing an examination, based on the stored at least one examination parameter, as to whether the frame received by the receiver is an attack frame, and performing a process depending on a result of the execution of the examination such that an influence of an attack frame on at least one electronic control unit is suppressed.
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30.发明申请公开(公告)号：US20210133309A1
公开(公告)日：2021-05-06
申请号：US17122659
申请日：2020-12-15
Inventor： Takeshi KISHIKAWA , Yoshihiro UJIIE , Manabu MAEDA , Hideki MATSUSHIMA , Hiroshi AMANO , Toshihisa NAKANO
Abstract: A misuse detection method used in an electronic control unit in a vehicle network system including multiple electronic control units that communicate with one another through networks. The misuse detection method includes receiving a target data frame at one time point, and receiving a reference data frame at another time point different than the one time point. The misuse detection method further includes performing, as misuse detection for the target data frame based on a certain rule specifying a reception interval between the one time point at which the target data frame is received and the other time point at which the reference data frame is received, and determining the target data frame received is for misuse based on a length of the reception interval.
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