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公开(公告)号：US20220084328A1
公开(公告)日：2022-03-17
申请号：US17534876
申请日：2021-11-24
Inventor： Takeshi KISHIKAWA , Tomoyuki HAGA , Yuishi TORISAKI , Takamitsu SASAKI , Hideki MATSUSHIMA
Abstract: A vehicle monitoring apparatus includes: a first communicator that receives specifying information for specifying a target vehicle from a server; and an acquirer that acquires driving information from the target vehicle, the driving information being information regarding driving of the target vehicle specified by the specifying information received by the first communicator. The first communicator transmits the driving information acquired by the acquirer to the server. For example, the acquirer may acquire the driving information obtained from the target vehicle through communication.
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公开(公告)号：US20210365542A1
公开(公告)日：2021-11-25
申请号：US17393713
申请日：2021-08-04
Inventor： Yoshihiro UJIIE , Masato TANABE , Takeshi KISHIKAWA , Tomoyuki HAGA , Hideki MATSUSHIMA
IPC: G06F21/44 , H04L12/40 , H04L29/06 , B60R16/023 , G06F13/42
Abstract: A vehicle network system employing a controller area network protocol includes a bus, a first electronic control unit, and a second electronic control unit. The first electronic control unit transmits, via the bus, at least one data frame including an identifier relating to data used for a calculation for obtaining a message authentication code indicating authenticity of transmission content. The second electronic control unit receives the at least one data frame transmitted vis the bus and verifies the message authentication code in accordance with the identifier included in the at least one data frame.
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公开(公告)号：US20210314336A1
公开(公告)日：2021-10-07
申请号：US17354213
申请日：2021-06-22
Inventor： Takeshi KISHIKAWA , Ryo HIRANO , Yoshihiro UJIIE , Tomoyuki HAGA
Abstract: An unauthorized frame detection device that can keep an unauthorized ECU from spoofing as a legitimate server or client while suppressing an overhead during communication is provided. The unauthorized frame detection device includes a plurality of communication ports corresponding to the respective of networks, a communication controller, and an unauthorized frame detector. The plurality of communication ports are each connected to a corresponding predetermined network among the plurality of networks and each transmit or receive a frame via the predetermined network. The unauthorized frame detector determines whether an identifier of a service, a type of the service, and port information that are each included in the frame match a permission rule set in advance and outputs a result of the determination.
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公开(公告)号：US20210306365A1
公开(公告)日：2021-09-30
申请号：US17344097
申请日：2021-06-10
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method for use in a network communication system including a plurality of electronic controllers that communicate with each other via a bus in accordance with a Controller Area Network (CAN) protocol determines whether or not content of a predetermined field in a frame which has started to be transmitted meets a predetermined condition indicating fraud. In a case where the content of the predetermined field meets the predetermined condition, a frame including predetermined consecutive dominant bits for notifying an anomaly is transmitted before an end of the frame is transmitted. A number of times the frame including the predetermined consecutive dominant bits is transmitted is recorded for each identifier (ID) represented by content of an ID field included in a plurality of frames which has been transmitted. A malicious electronic controller is determined in accordance with the number of times recorded for each ID.
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65.发明申请公开(公告)号：US20210266244A1
公开(公告)日：2021-08-26
申请号：US17240098
申请日：2021-04-26
Inventor： Tomoyuki HAGA , Yuishi TORISAKI , Manabu MAEDA , Ryo KATO
IPC: H04L12/26
Abstract: A statistical information generation device that generates statistical information from Ethernet frames on a mobility network includes: a transceiver that transmits and receives the Ethernet frames; and a statistical information generator that collects a plurality of Ethernet frames transmitted or received by the transceiver within a predetermined time period, and classifies, out of the plurality of Ethernet frames collected, Ethernet frames containing the same destination IP address, source IP address, destination port number, source port number, and protocol, and containing, in payloads, same identification information related to mobility control, into the same group, generates the statistical information for each group from the Ethernet frames classified into groups, and transmits the generated statistical information from the transceiver.
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Patent Agency Ranking
公开(公告)号：US20210234724A1
公开(公告)日：2021-07-29
申请号：US17233088
申请日：2021-04-16
Inventor： Manabu MAEDA , Tomoyuki HAGA , Takamitsu SASAKI , Hideki MATSUSHIMA
Abstract: An electronic control unit (ECU) is provided. The ECU is connected to a first network in an onboard network system. The onboard network system includes the first network and a second network. In the first network, first-type frames are transmitted following a first communication protocol. In the second network, second-type frames are transmitted following a second communication protocol. The first-type frame includes first information serving as a base for the second-type frame to be transmitted to the second network, and second information indicating that the first-type frame includes information that is to be transmitted to the second network. The ECU includes a generator that generates the first-type frame following the first communication protocol, and a transmitter that transmits, to the first network, the first-type frame generated by the generator.
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67.发明申请公开(公告)号：US20210185056A1
公开(公告)日：2021-06-17
申请号：US17169978
申请日：2021-02-08
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: H04L29/06 , H04W4/40 , B60R16/023 , G06F21/57 , G06F21/60 , G06F21/71 , G06F21/85 , H04L12/28 , H04L29/08
Abstract: In a fraud-detection method for use in an in-vehicle network system including a plurality of electronic control units (ECUs) that exchange messages on a plurality of networks, a plurality of fraud-detection ECUs each connected to a different one of the networks, and a gateway device, a fraud-detection ECU determines whether a message transmitted on a network connected to the fraud-detection ECU is malicious by using rule information stored in a memory. The gateway device receives updated rule information transmitted to a first network among the networks, selects a second network different from the first network, and transfers the updated rule information only to the second network. A fraud-detection ECU connected to the second network acquires the updated rule information and updates the rule information stored therein by using the updated rule information.
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公开(公告)号：US20210117537A1
公开(公告)日：2021-04-22
申请号：US17132824
申请日：2020-12-23
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Tomoyuki HAGA , Yuji UNAGAMI , Takeshi KISHIKAWA
Abstract: A method used in an on-board network system, having electronic controllers that exchange messages and a fraud detecting electronic controller. The method includes determining whether a message transmitted conforms to fraud detection rules, and querying an external device whether there is delivery data for updating the fraud detection rules. When there is the delivery data for updating the fraud detection rules, receiving from an external device the delivery data, including updated fraud detection rules and network type information indicating a network type that the updated fraud detection rules are to be applied. The method also includes determining whether a vehicle in which the on-board network system is installed is running, and whether the network type information indicates a drive network that is connected to an electronic controller related to travel of the vehicle. When the network type information does not indicate the drive network, updating the fraud detection rules.
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公开(公告)号：US20200296166A1
公开(公告)日：2020-09-17
申请号：US16891644
申请日：2020-06-03
Inventor： Takamitsu SASAKI , Tomoyuki HAGA , Manabu MAEDA , Hideki MATSUSHIMA
Abstract: A hub is connected to first and second networks where first-type and second-type frames are transmitted following first and second communication protocols. The hub sequentially receives each of the first-type and second-type frames, and stores data in first and second reception buffers. If the destination of data stored in the first and second reception buffers is the first network, the hub stores the data in a first transmission buffer. If the destination is the second network, the hub stores the data in a second transmission buffer. If the first transmission buffer is a priority transmission buffer, the hub transmits priority data in the first transmission buffer with priority over non-priority data in the second transmission buffer, which is a non-priority transmission buffer.
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公开(公告)号：US20200259677A1
公开(公告)日：2020-08-13
申请号：US16860353
申请日：2020-04-28
Inventor： Yoshihiro UJIIE , Hideki MATSUSHIMA , Toshihisa NAKANO , Tohru WAKABAYASHI , Hiroshi AMANO , Tomoyuki HAGA , Takeshi KISHIKAWA
IPC: H04L12/40 , H04L29/06 , H04L12/46 , H04L12/66 , H04B1/3822
Abstract: A gateway device for a vehicle network system is provided. The vehicle network system includes a first network, a second network, a first electronic control unit connected to the first network, a second electronic control unit connected to the second network, and the gateway device connected to the first network and the second network. The gateway device receives a first frame transmitted to the first network by the first electronic control unit; 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 second 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 second electronic control unit.
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