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公开(公告)号:US20240239354A1
公开(公告)日:2024-07-18
申请号:US18405519
申请日:2024-01-05
Inventor: Takayoshi ITO , Kaoru YOKOTA , Akihito TAKEUCHI
IPC: B60W50/00
CPC classification number: B60W50/0097 , B60W2556/20 , B60W2756/00
Abstract: An information processing system includes a pre-processor that obtains input data; a model processor that obtains output data by inputting the input data to part of a machine learning model, and outputs the output data; and a post-processor which obtains the output data from the model processor, and executes post-processing using the output data. The model processor obtains data indicating a feature as the output data, the data being data output from the part of the machine learning model for the input data and being obtained in the middle of the prediction performed by the data. The post-processor identifies the result of the prediction performed by the machine learning model by inputting the output data to a remaining part of the machine learning model, and executes post-processing on the result of the prediction.
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公开(公告)号:US20220239686A1
公开(公告)日:2022-07-28
申请号:US17724039
申请日:2022-04-19
Inventor: Kento TAMURA , Toshihisa NAKANO , Kaoru YOKOTA
Abstract: A server includes: an obtainer that obtains items of information including an item of frame information regarding a communication frame transmitted on an in-vehicle network of each of a plurality of vehicles; and a generator that generates an integrated rule that is suitable for the items of information obtained by the obtainer and is for anomaly detection processing in the in-vehicle network of one of the vehicles; and a provider that outputs the integrated rule generated by the generator. For example, the obtainer obtains condition information indicating a condition pertaining to each of the plurality of vehicles at a time when the communication frame is transmitted on the in-vehicle network, and the generator generates the integrated rule using the items of frame information associated with the condition information.
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公开(公告)号:US20200275247A1
公开(公告)日:2020-08-27
申请号:US16793493
申请日:2020-02-18
Inventor: Kaoru YOKOTA , Takayuki FUJII , Akihito TAKEUCHI , Kou ISHII , Minehisa NAGATA , Toshihisa NAKANO
Abstract: An electronic control unit includes: a first determination unit which determines whether a message received is an address claim message; a second determination unit which determines, when it is determined that the message received is an address claim message, whether a device name included in the address claim message received is a predetermined device name; and a third determination unit which performs a predefined determination process, when it is determined that the device name included in the address claim message received is the predetermined device name, and determine whether the address claim message received is an unauthorized message according to a result of the predefined determination process.
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4.
公开(公告)号:US20190387023A1
公开(公告)日:2019-12-19
申请号:US16436385
申请日:2019-06-10
Inventor: Kaoru YOKOTA , Toshihisa NAKANO , Jun ANZAI
IPC: H04L29/06
Abstract: An electronic control apparatus includes: an obtaining unit configured to obtain data transmitted via a network in a system; and a judging unit configured to judge presence or absence of an anomaly in the data obtained by the obtaining unit, based on a transmission state of the data. The judging unit is configured to judge that an anomaly is present in the data, when the transmission state of the data is a transmission stopped state.
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公开(公告)号:US20230401317A1
公开(公告)日:2023-12-14
申请号:US18143344
申请日:2023-05-04
Inventor: Kaoru YOKOTA
CPC classification number: G06F21/572 , H04L63/1441 , G06F2221/033 , G06F8/65 , H04L63/1425
Abstract: In a security method according to one aspect of the present disclosure, when a fraudulent command is detected in an in-vehicle communication network, an electronic control unit (ECU) which can transmit a fraudulent command is specified, the specified ECU is caused to execute update of the software used by the specified ECU, and execution of update of the software by the specified ECU is prohibited after the update of the software is executed.
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公开(公告)号:US20220261304A1
公开(公告)日:2022-08-18
申请号:US17738695
申请日:2022-05-06
Inventor: Akihiko TAKEUCHI , Toshihisa NAKANO , Kaoru YOKOTA , Yuishi TORISAKI
IPC: G06F11/07
Abstract: An information processing device that detects an anomaly in an in-vehicle network provided in a vehicle includes: a local rule storage in which at least an individual rule which is a rule generated for the vehicle is stored; a global rule storage in which an integrated rule which is a rule generated for a plurality of vehicles including the vehicle is stored; and a processing unit that performs, using a rule stored in at least one of the local rule storage or the global rule storage, an anomaly detection process on a frame transmitted on the in-vehicle network.
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7.
公开(公告)号:US20190302753A1
公开(公告)日:2019-10-03
申请号:US16366636
申请日:2019-03-27
Inventor: Takayuki FUJII , Kaoru YOKOTA
IPC: G05D1/00 , H04L29/08 , H04L12/40 , G08G1/0962
Abstract: A communications interruption system includes, in an in-vehicle network system in which it is possible to communicate data between a plurality of groups that each include a plurality of communication devices and a communication line, a communicator that receives data from at least one of the plurality of communication devices included in a first group via the communication line, a determiner configured to detect a communication anomaly in the first group based on the data received by the communicator and determine whether to execute a predetermined communications interruption between the plurality of groups based on contents of the communication anomaly detected, and a switcher that executes the predetermined communications interruption. The predetermined communications interruption includes interrupting a flow of the data transmitted from the first group to a group other than the first group.
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公开(公告)号:US20230247037A1
公开(公告)日:2023-08-03
申请号:US18134183
申请日:2023-04-13
Inventor: Yuishi TORISAKI , Takayoshi ITO , Kaoru YOKOTA , Akihito TAKEUCHI , Toshihisa NAKANO
IPC: H04L9/40
CPC classification number: H04L63/1425
Abstract: A log management module includes: an anomaly detection information receiver that receives anomaly detection information; a detection history information storage that stores detection history information; an attack route information storage that stores attack route information indicating a candidate for an attack route in the CAN bus; an attack route estimator that estimates an attack route including the specific device, based on the attack route information; and a collection target determiner that, upon receipt of the anomaly detection information by the anomaly detection information receiver, determines, as collection targets whose log information for analysis which is for analyzing presence or absence of an undetected anomaly in the CAN bus is to be collected, one or more candidate devices which have been narrowed down from the devices, are present on the attack route estimated by the attack route estimator, and have no history of anomaly detection.
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公开(公告)号:US20230229762A1
公开(公告)日:2023-07-20
申请号:US18126651
申请日:2023-03-27
Inventor: Kaoru YOKOTA , Takayuki FUJII , Toshihisa NAKANO
IPC: G06F21/55
CPC classification number: G06F21/552 , G06F21/554
Abstract: An anomaly detection device is a device for detecting an anomaly in a mobile body and includes: a type determiner that determines a type of an anomaly detected; a type change determiner that determines whether or not a change has occurred between a type of an anomaly detected last time and a type of an anomaly detected this time; and an anomaly detection log transmitter that transmits an anomaly detection log related to the anomaly detected this time when the change has occurred, and does not transmit the anomaly detection log related to the anomaly detected this time when the change has not occurred.
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公开(公告)号:US20190217869A1
公开(公告)日:2019-07-18
申请号:US16244453
申请日:2019-01-10
Inventor: Akihito TAKEUCHI , Kaoru YOKOTA , Hiroyuki WADA , Toshihisa NAKANO , Takayuki FUJII , Yuusuke NEMOTO
CPC classification number: B60W50/0205 , B60W50/045 , B60W2050/021 , B60W2050/046 , G07C5/008
Abstract: A control apparatus (communication device) includes: a determination unit which determines, based on a communication data item passing through a network to which a plurality of ECUs are connected in a system, an anomaly level of the communication data item or an operating state of the system; and a first control unit which (i) changes at least one of a method of transmitting a log of the communication data item and a method of storing the log of the communication data item, according to the anomaly level of the communication data item determined, or (ii) performs sampling on the communication data item according to a method of sampling corresponding to the operating state determined.
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