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公开(公告)号：US12028353B2
公开(公告)日：2024-07-02
申请号：US17211211
申请日：2021-03-24
Inventor： Tomoyuki Haga , Takamitsu Sasaki , Hajime Tasaki , Hideki Matsushima
IPC: H04L9/40 , G06F21/57 , H04W12/122
CPC classification number: H04L63/1416 , H04L63/1425
Abstract: A threat information analysis server includes: an update manager that manages update information indicating that function addition to an IoT device is performed; a threat information manager that stores threat information of a cyberattack; a risk level manager that manages risk level information defining a risk level of the IoT device; a related threat information manager that manages the threat information and related threat information associating the IoT device with the risk level; a risk level updater that associates the threat information and the risk level of the IoT device with each other and updates the related threat information, based on the update information; and an outputter that outputs the related threat information managed by the related threat information manager.
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公开(公告)号：US11943243B2
公开(公告)日：2024-03-26
申请号：US17322371
申请日：2021-05-17
Inventor： Takamitsu Sasaki , Tomoyuki Haga , Daiki Tanaka , Makoto Yamada , Hisashi Kashima , Takeshi Kishikawa
CPC classification number: H04L63/1425 , H04L12/40 , H04L63/1466 , H04L2012/40215 , H04L2463/142
Abstract: In an anomaly detection method that determines whether each frame in observation data constituted by a collection of frames sent and received over a communication network system is anomalous, a difference between a data distribution of a feature amount extracted from the frame in the observation data and a data distribution for a collection of frames sent and received over the communication network system, obtained at a different timing from the observation data, is calculated. A frame having a feature amount for which the difference is predetermined value or higher is determined to be an anomalous frame. An anomaly contribution level of feature amounts extracted from the frame determined to be an anomalous frame is calculated, and an anomalous payload part, which is at least one part of the payload corresponding to the feature amount for which the anomaly contribution level is at least the predetermined value, is output.
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53.发明授权公开(公告)号：US11190533B2
公开(公告)日：2021-11-30
申请号：US16237243
申请日：2018-12-31
Inventor： Junichi Tsurumi , Yoshihiro Ujiie , Takamitsu Sasaki , Takeshi Kishikawa , Tohru Wakabayashi , Toshihisa Nakano
IPC: H04L29/06 , H04L12/28 , B60R1/00 , B60R16/023 , H04L12/40
Abstract: An anomaly detection electronic control unit (ECU) that detects unauthorized messages on a communication path is provided. An ECU that periodically transmits a first-type message including data to be monitored, and an ECU that periodically transmits a second-type message including data for comparison, are connected to the communication path. The anomaly detection ECU includes: a receiver that successively receives first-type and second-type messages; a processor that determines whether a first-type message received is normal or anomalous; and a transmitter that transmits a predetermined message in accordance with results of the determining. The determining is performed based on content of the first-type message, content of a second-type message last received at the time of receiving this first-type message, and at least one of content of a first-type message received further in the past than this first-type message, and content of a second-type message received further in the past than the second-type message last received.
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公开(公告)号：US11018897B2
公开(公告)日：2021-05-25
申请号：US16872881
申请日：2020-05-12
Inventor： Takamitsu Sasaki , Tomoyuki Haga , Manabu Maeda , Hideki Matsushima
Abstract: An electronic control unit connected to a bus of a first network where first-type frames are transmitted following a first communication protocol and a second network where second-type frames are transmitted following a second communication protocol in an onboard network system. The electronic control unit sequentially receives the first-type and the second-type frames from the bus and the second network respectively, and stores in first and second reception buffers, respectively. The electronic control unit sequentially generates first-type data and second-type data by referencing the contents of the first reception buffer and the second reception buffer, and stores the first-type and second-type data in first and second transmission buffers, respectively. The first-type data is traveling control data for a vehicle, and the second-type data is other data. The first-type or second-type data that is priority type data is transmitted with priority.
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公开(公告)号：US11012514B2
公开(公告)日：2021-05-18
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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Patent Agency Ranking
公开(公告)号：US11012255B2
公开(公告)日：2021-05-18
申请号：US16785040
申请日：2020-02-07
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 ECU generates first-type frames following the first communication protocol, and transmits the generated first-type frames to the first network. The ECU receives external information indicating state information of a device on the onboard network system received from another electronic control unit connected to the first network or the second network, or receives external information indicating information received from a communication module configured to communicate with the server via an external network.
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公开(公告)号：US10861253B2
公开(公告)日：2020-12-08
申请号：US16241039
申请日：2019-01-07
Inventor： Takamitsu Sasaki
IPC: G07C5/00 , G07C5/08 , G07C5/10 , H04L29/08 , B60W50/02 , H04W12/12 , H04W4/44 , H04L29/06 , H04L12/66 , B60W50/00
Abstract: An information processing method is provided to reduce an amount of data to be monitored in an onboard system of a vehicle. In the method, detection results that indicate whether an abnormality is included in communication data on an onboard network are obtained, and a first log transmission instruction is generated to cause periodic transmission of a first log from the onboard system to a server device. The first log is a log of the communication data. A second log transmission instruction is generated to cause transmission of a second log from the onboard system to the server device in a case of the detection results indicating the abnormality is included in the communication data. The second log is a log of the communication data and includes an amount of data generated per unit time that is greater than the first log.
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公开(公告)号：US10715600B2
公开(公告)日：2020-07-14
申请号：US16188330
申请日：2018-11-13
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 first yet-to-be-transmitted data in the first transmission buffer with priority. If the second transmission buffer is the priority transmission buffer, the hub transmits second yet-to-be-transmitted data in the second transmission buffer with priority.
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公开(公告)号：US10601607B2
公开(公告)日：2020-03-24
申请号：US16166361
申请日：2018-10-22
Inventor： Manabu Maeda , Tomoyuki Haga , Takamitsu Sasaki , Hideki Matsushima
Abstract: An electronic control unit (ECU) is provided. The electronic control unit 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 electronic control unit generates first-type frames following the first communication protocol, and transmits the generated first-type frames to the first network. The first-type frame includes first information and second information. The first information serves as a base for a second-type frame to be transmitted to the second network. The second information indicates information that the first-type frame is to be transmitted to the second network.
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公开(公告)号：US10466881B2
公开(公告)日：2019-11-05
申请号：US14462614
申请日：2014-08-19
Inventor： Takamitsu Sasaki , Eiichi Naito
IPC: G06F3/0484 , G06F3/0481 , G06F3/0482 , G06F3/0488 , A47H5/02 , E06B9/32 , H04L29/08 , G08C17/00 , H04L12/28 , E06B3/48
Abstract: A control method of the present disclosure causes a computer of an information apparatus to: display on a touch panel display, a display screen representing a floor plan; display device icons on the display screen, the device icons representing one or more target devices respectively, the device icons including an icon representing an electric shutter device that is capable of opening or closing a shutter; display an operation screen on the display screen, when selection of the icon representing the electric shutter device is sensed, the operation screen including a shutter image representing the shutter; and output a movement control command to a network when a swipe operation is sensed on the shutter image, the movement control command being for moving the shutter of the electric shutter device in a swipe direction of the swipe operation, the electric shutter device corresponding to the selected icon.
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