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公开(公告)号：US10187406B2
公开(公告)日：2019-01-22
申请号：US15183398
申请日：2016-06-15
Inventor： Manabu Maeda , Hideki Matsushima , Tomoyuki Haga , Yuji Unagami , Yoshihiro Ujiie , Takeshi Kishikawa
IPC: H04L29/06 , H04L12/28 , B60R16/023 , H04L29/08 , H04L12/40
Abstract: A fraud sensing method for use in an in-vehicle network system including a plurality of electronic control units that communicate with each other via a bus includes detecting that a state of a vehicle satisfies a predetermined condition, and switching, upon detecting that the state of the vehicle satisfies the predetermined condition, an operation mode of a fraud-sensing electronic control unit connected to the bus between a first mode in which a first type of sensing process for sensing a fraudulent message in the bus is performed and a second mode in which the first type of sensing process is not performed.
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12.发明申请SPOT NOTIFICATION METHOD, SPOT NOTIFICATION DEVICE, AND SPOT NOTIFICATION DEVICE PROGRAM 有权点通知方法，点通知装置和点通知装置程序公开(公告)号：US20150143391A1
公开(公告)日：2015-05-21
申请号：US14400924
申请日：2014-03-04
Inventor： Yuka Ozawa , Yoshihiro Ujiie
IPC: H04N21/4722 , H04H60/31 , H04H60/54 , H04H60/70 , H04L29/08 , H04N21/435 , H04N21/442 , H04N21/45 , H04W4/02 , G06F17/30 , H04M11/00
CPC classification number: H04N21/4722 , G01C21/00 , G06F17/30 , G06F17/30241 , G06F17/3087 , H04H60/31 , H04H60/54 , H04H60/70 , H04L67/18 , H04L67/22 , H04M11/00 , H04N21/435 , H04N21/44222 , H04N21/4524 , H04W4/025
Abstract: A spot notification device includes: a viewing history acquisition unit that acquires a program viewing history of a user; a program metadata acquisition unit that acquires program metadata including a name and locational information on a spot introduced in a program; a spot list generation unit that generates, on the basis of the viewing history and the program metadata, a spot list including the name and locational information on the spot; a current location acquisition unit that acquires a current location of the user; an activity history holding unit that holds the current location in time series as an activity history; a notifying spot determination unit that sets a search range in accordance with the activity history and refers to the spot list to search for the spot present within the search range; and a spot notification unit that notifies the user of information relating to the spot.
Abstract translation: 现场通知装置包括：观看历史获取单元，其获取用户的节目观看历史; 节目元数据获取单元，其在节目中引入的点上获取包括姓名和位置信息的节目元数据; 基于观看历史和节目元数据生成包含当地名称和位置信息的点列表的点列表生成单元; 当前位置获取单元，其获取所述用户的当前位置; 活动历史保持单元，其以时间序列的形式保存当前位置作为活动历史; 通知点确定单元，其根据活动历史设置搜索范围，并参考点列表以搜索存在于搜索范围内的点; 以及通知用户有关该点的信息的点通知单元。
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公开(公告)号：US12135783B2
公开(公告)日：2024-11-05
申请号：US18120749
申请日：2023-03-13
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 receiving an inquiry for a vehicle status indicating whether a vehicle in which the fraud-detecting electronic controller is installed is running from an external device, transmitting the vehicle status to the external device, and determining whether a message transmitted conforms to fraud detection rules. The method also includes receiving from the 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 further includes determining whether the vehicle 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：US12107876B2
公开(公告)日：2024-10-01
申请号：US17665218
申请日：2022-02-04
Inventor： Takeshi Kishikawa , Ryo Hirano , Tomoyuki Haga , Yoshihiro Ujiie
IPC: H04L9/40
CPC classification number: H04L63/1425 , H04L63/02 , H04L63/145
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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公开(公告)号：US12083971B2
公开(公告)日：2024-09-10
申请号：US17031224
申请日：2020-09-24
Inventor： Yoshihiro Ujiie , Takeshi Kishikawa , Ryo Hirano
IPC: B60R16/023 , H04L12/44 , H04L12/64 , H04L12/40
CPC classification number: B60R16/0232 , H04L12/44 , H04L12/6418 , H04L2012/40215 , H04L2012/40273 , H04L2012/644
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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Patent Agency Ranking
公开(公告)号：US11971978B2
公开(公告)日：2024-04-30
申请号：US17393713
申请日：2021-08-04
Inventor： Yoshihiro Ujiie , Masato Tanabe , Takeshi Kishikawa , Tomoyuki Haga , Hideki Matsushima
CPC classification number: G06F21/44 , B60R16/0231 , G06F13/4208 , H04L12/40 , H04L63/123 , H04L2012/40215 , H04L67/12
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：US11930021B2
公开(公告)日：2024-03-12
申请号：US17354213
申请日：2021-06-22
Inventor： Takeshi Kishikawa , Ryo Hirano , Yoshihiro Ujiie , Tomoyuki Haga
CPC classification number: H04L63/1416 , H04L63/1466 , H04L63/20 , H04L67/12
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：US11792219B2
公开(公告)日：2023-10-17
申请号：US17738837
申请日：2022-05-06
Inventor： Ryo Hirano , Yoshihiro Ujiie , Takeshi Kishikawa
IPC: H04L9/40 , H04L41/0681 , H04L47/10
CPC classification number: H04L63/1425 , H04L41/0681 , H04L47/10 , H04L63/1458
Abstract: An anomaly detecting device includes a flow collector that collects an amount of flow communication traffic in each of two or more networks in an in-vehicle network system that including the two or more networks, the amount of flow communication traffic being information obtained by tallying an amount of communication traffic of one or more frames classified according to a predetermined rule that is based on header information of a network protocol; and an anomaly detector that calculates, based on the amount of flow communication traffic, an observed ratio indicating a ratio of respective amounts of communication traffic in the two or more networks and determines whether the two or more networks are anomalous based on the observed ratio calculated and a normal ratio indicating a ratio of respective amounts of communication traffic in the two or more networks in a normal state.
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公开(公告)号：US11636201B2
公开(公告)日：2023-04-25
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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20.发明授权公开(公告)号：US11636196B2
公开(公告)日：2023-04-25
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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