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公开(公告)号：US10723361B2
公开(公告)日：2020-07-28
申请号：US15879758
申请日：2018-01-25
Inventor： Yoshiharu Imamoto , Jun Anzai , Masato Tanabe
IPC: B60W50/04 , H04W4/48 , H04L29/06 , H04L12/40 , H04L9/32 , B60W50/14 , H04L9/08 , H04L29/08 , H04L12/26 , B60W50/02
Abstract: A monitoring apparatus includes a storage unit, a reception unit, a collation information generation unit, and a response unit. The storage unit stores a criterion for determining normality of a frame transmitted from a first electronic device. The reception unit receives the frame from a bus network. The collation information generation unit generates, when the reception unit receives a frame of a first identifier (ID) transmitted from the first electronic device, collation information which is information for collation with the criterion stored in the storage unit, based on the frame. The response unit transmits, when the reception unit receives a frame of a second ID transmitted from the second electronic device, information which is based on the criterion stored in the storage unit and the collation information generated by the collation information generation unit and which enables a check whether the first electronic device is valid, to the second electronic device.
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公开(公告)号：US11765191B2
公开(公告)日：2023-09-19
申请号：US18137168
申请日：2023-04-20
Inventor： Kou Ishii , Kaoru Yokota , Yuishi Torisaki , Toshihisa Nakano , Jun Anzai
IPC: H04L9/40
CPC classification number: H04L63/1425 , H04L63/1416
Abstract: An information processing device includes: an obtainer that obtains, from an anomaly detection sensor that detects an anomaly in a network, a detection log related to the anomaly in the network and the detection time of the anomaly indicated in the detection log; an occurrence time determiner that determines the occurrence time of an attack on the network based on the obtained detection time, and records the determined occurrence time; and an end time determiner that determines the expected end time of the attack on the network based on the obtained detection log, and records the determined expected end time.
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公开(公告)号：US11075927B2
公开(公告)日：2021-07-27
申请号：US16451388
申请日：2019-06-25
Inventor： Kazuya Fujimura , Jun Anzai , Masato Tanabe
IPC: H04L29/06 , B60R16/023 , H04L12/40 , B60R16/02 , H04L12/28
Abstract: A fraud detection electronic control unit is connected to an electronic control unit through an in-vehicle network system. The fraud detection electronic control unit includes a storage and a determination unit. The storage stores a first regulation for determining whether the frame transmitted from the electronic control unit is fraudulent. The determination unit determines whether the frame transmitted from the electronic control unit is fraudulent in pursuant to the first regulation. When a predetermined condition is satisfied, the storage acquires a second regulation retained by the electronic control unit and updates the stored first regulation.
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公开(公告)号：US10917387B2
公开(公告)日：2021-02-09
申请号：US16042160
申请日：2018-07-23
Inventor： Toshihisa Nakano , Jun Anzai , Masato Tanabe , Kaoru Yokota
Abstract: An information processing device includes: a first communication unit which transmits and receives communication data through a network connected to a first GW, a second GW, and at least one electronic control unit; a monitoring unit which determines whether the communication data is normal; and a notification unit which transmits, at least to the second GW, a notification that brings the network to a state in which one of a transfer function of the first GW and a transfer function of the second GW gateway is active and the other one of the transfer functions is inactive, when the monitoring unit does not determine that the communication data is normal.
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公开(公告)号：US12103478B2
公开(公告)日：2024-10-01
申请号：US17239187
申请日：2021-04-23
Inventor： Kento Tamura , Jun Anzai , Yoshiharu Imamoto
IPC: B60R16/023 , G06F21/55 , G07C5/08
CPC classification number: B60R16/023 , G06F21/554 , G07C5/085 , G06F2221/034
Abstract: A vehicle system is a vehicle system used for a vehicle, and includes: a plurality of in-vehicle apparatuses installed in the vehicle; and at least one of (i) a controller that, in accordance with a depth of penetration of a malicious attack carried out on the plurality of in-vehicle apparatuses, changes at least one of a communication method with an outside of the vehicle, a defense method against the malicious attack, or a storage method for logs pertaining to the plurality of in-vehicle apparatuses, or (ii) a determiner that determines whether or not the malicious attack is being carried out based on anomaly detection in the plurality of in-vehicle apparatuses.
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Patent Agency Ranking
公开(公告)号：US10986093B2
公开(公告)日：2021-04-20
申请号：US16505628
申请日：2019-07-08
Inventor： Jun Anzai , Tomoyuki Haga
Abstract: The monitoring device includes a receiver and a processor. The receiver receives a frame from a communication network. The processor performs a first determination that determines whether the frame is illegal based on a result of message authentication for the frame and a second determination that determines whether the frame is illegal based on a state of the frame and a predetermined rule. In addition, the processor executes, in accordance with a combination of a result of the first determination and a result of the second determination, at least one of processing for the frame, processing for a transmission source device of the frame, change of contents to be notified to an external device, and change of priority of notification to the external device.
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公开(公告)号：US10713106B2
公开(公告)日：2020-07-14
申请号：US15770182
申请日：2016-12-09
Inventor： Masato Tanabe , Jun Anzai , Manabu Maeda , Yoshihiro Ujiie , Takeshi Kishikawa
Abstract: A communication unit receives a message in a network. A first anomaly detector detects an anomalous message by detecting values of a plurality of monitoring items from the message received by the communication unit and determining whether each of the detected values of the plurality of monitoring items is inside a corresponding first reference range and a corresponding second reference range. The second reference range is narrower than the first reference range. The first anomaly detector detects the message as the anomalous message, when any of the detected values is outside the first reference range, and detects the message as the anomalous message, when any of the detected values is inside the first reference range and is outside the second reference range and when a predetermined rule is satisfied.
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公开(公告)号：US10165442B2
公开(公告)日：2018-12-25
申请号：US15308171
申请日：2015-05-25
Inventor： Masato Tanabe , Jun Anzai , Yoshihiko Kitamura
Abstract: A transmission device has a detector, a generator, and a transmitter. When the detector has detected that a communication rule of a message that has been broadcasted to a network by another transmission device coincides with a communication rule of a message that is broadcasted to the network by the present transmission device, the generator generates an abnormality notification message. Then, the transmitter broadcasts an abnormality notification message to the network.
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公开(公告)号：US11084495B2
公开(公告)日：2021-08-10
申请号：US16250545
申请日：2019-01-17
Inventor： Toshihisa Nakano , Jun Anzai , Kaoru Yokota
Abstract: A master control device is communicatively coupled to a first slave control device and a second slave control device via a first network and a second network, respectively. The master control device provides output data to the first slave control device based on input data received from the second slave control device. A monitoring apparatus which monitors an operation of the master control device stores determination data indicating a correspondence relationship between the input data and the output data, obtains the input data provided to the second network by the second slave control device and the output data provided to the first slave control device via the first network, and determines a presence or an absence of an anomaly in the operation of the master control device by determining whether the input data and the output data correspond to the determination data.
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10.发明授权公开(公告)号：US10601843B2
公开(公告)日：2020-03-24
申请号：US15578760
申请日：2016-06-28
Inventor： Masato Tanabe , Jun Anzai , Yoshihiko Kitamura , Seiji Sakaki , Yoshihiro Ujiie , Hideki Matsushima
Abstract: A communication device includes: a communication section that transmits and receives a message in a network; an acquisition unit that acquires state information on a state of an object for which the network is provided; an estimation unit that estimates the state of the object based on the state information acquired in the acquisition unit; a setting unit that sets a filtering rule based on the state estimated in the estimation unit; and a filter unit that executes filtering processing for the message in accordance with the filtering rule set in the setting unit.
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