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41.发明申请公开(公告)号：US20200220716A1
公开(公告)日：2020-07-09
申请号：US16820428
申请日：2020-03-16
Inventor： Tomoyuki HAGA , Hideki MATSUSHIMA , Manabu MAEDA , Yuji UNAGAMI , Jun ANZAI
Abstract: An update management method is used in an onboard network system having a plurality of electronic control units (ECUs) that performs communication via a network and connects to an external tool. The method includes a master ECU storing a shared key and an expiration date of the shared key. When the master ECU receives an update message, verifying update authority information indicating authority of the external tool, and determining whether or not a transmission of the update message is within a range of an authority of the external tool. The method also includes acquiring external point-in-time information, determining whether or not the external point-in-time information is before the expiration date, and transmitting an alert message prompting an update of the shared key. The ECUs are prioritized according to a designated level of authority, including chassis-related functions, body-related functions, safety/comfort functions, and telematics/infotainment functions.
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42.发明申请公开(公告)号：US20200007567A1
公开(公告)日：2020-01-02
申请号：US16566269
申请日：2019-09-10
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, an error frame is transmitted before an end of the frame is transmitted. A number of times the error frame 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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公开(公告)号：US20190215252A1
公开(公告)日：2019-07-11
申请号：US16355069
申请日：2019-03-15
Inventor： Hideki MATSUSHIMA , Motoji OHMORI , Natsume MATSUZAKI , Yuichi FUTA , Toshihisa NAKANO , Manabu MAEDA , Yuji UNAGAMI , Hiroshi AMANO , Kotaro HAKODA
CPC classification number: H04L43/04 , G06F21/552 , G06Q10/20 , H04L41/069 , H04L67/10
Abstract: An information management method collects log information of one or more home electrical apparatuses corresponding to service providers. Display screen data is generated which indicates a status of the log information. The display screen data includes groups of information which each contain information on an apparatus, a service provider corresponding to the apparatus, and log information output from the apparatus. Provision of the log information of each group is individually selectable. The display screen data is provided via a network to a display terminal that performs access to a server device. Information is received from the display terminal, which indicates that selection on whether or not provision of the log information is performed. Provision of the log information is not performed on the selected group when a determination is made that refusal of provision of the log information on the selected group is performed.
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公开(公告)号：US20180126954A1
公开(公告)日：2018-05-10
申请号：US15868663
申请日：2018-01-11
Inventor： Tomoyuki HAGA , Hideki MATSUSHIMA , Manabu MAEDA , Yuji UNAGAMI , Yoshihiro UJIIE , Takeshi KISHIKAWA
CPC classification number: B60R25/307 , B60R2325/108 , H04L9/0891 , H04L9/3242 , H04L67/12 , H04L2209/84
Abstract: An anti-fraud method for use in an in-vehicle network system including a plurality of electronic control units that exchange, in an in-vehicle network, data frames, each having added thereto a message authentication code (MAC). The method includes generating a first MAC by using a MAC key and a value of a counter that counts a number of times a data frame having added thereto a MAC is transmitted to the in-vehicle network. The method also includes performing verification that the data frame received has added thereto the generated first MAC and incrementing a number of error occurrences when the verification has failed for the data frame, the data frame including a predetermined ID. When the number of error occurrences exceeds a predetermined threshold, a process associated in advance with the predetermined ID is executed.
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公开(公告)号：US20160006576A1
公开(公告)日：2016-01-07
申请号：US14441974
申请日：2014-09-11
Inventor： Natsume MATSUZAKI , Yuichi FUTA , Motoji OHMORI , Manabu MAEDA , Yuji UNAGAMI
CPC classification number: H04L12/2825 , G06F13/00 , G06Q10/00 , G06Q10/20 , H04L43/065 , H04Q9/00 , H04Q2209/40 , H04Q2209/86
Abstract: When it is determined that a position of the display terminal is within a range of a prescribed distance from the house and when it is determined that the log information and the information indicating the operational state of the one electric home appliance are not consistent with each other, the server provides the display terminal with information on a possibility of a malfunction of the one electric home appliance while the position of the display terminal is still within the range of the prescribed distance from the house.
Abstract translation: 当确定显示终端的位置在距离房屋规定距离的范围内时，并且当确定日志信息和指示一个家用电器的操作状态的信息彼此不一致时 服务器向显示终端提供关于一个家用电器故障的可能性的信息，同时显示终端的位置仍在距离房屋规定距离的范围内。
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Patent Agency Ranking
公开(公告)号：US20240406259A1
公开(公告)日：2024-12-05
申请号：US18802033
申请日：2024-08-13
Inventor： Yuji UNAGAMI , Hideki MATSUSHIMA , Tomoyuki HAGA , Manabu MAEDA
IPC: H04L67/1087 , H04L9/00 , H04L9/40
Abstract: In a data distribution method according to the disclosure, first authentication servers and a first data server belong to a first group, and second authentication servers and a second data server belong to a second group different from the first group. A first authentication server obtains first transaction data that includes a data obtaining request indicating a request for obtaining or referring to data pertaining to an apparatus, and records a block including the first transaction data into its distributed ledger belonging to the first group. A second authentication server obtains the first transaction data, and records the block including the first transaction data into a distributed ledger belonging to the second group. The first authentication server causes the first data server to transfer the data pertaining to the apparatus held therein to the second data server or to make such data available for reference by the second data server.
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公开(公告)号：US20240126877A1
公开(公告)日：2024-04-18
申请号：US18394174
申请日：2023-12-22
Inventor： Ryo KATO , Manabu MAEDA , Tomoyuki HAGA , Naohisa NISHIDA
CPC classification number: G06F21/56 , G06F11/3062
Abstract: A malware detection method for a home network system including one or more home appliances that are connected to a home network includes: obtaining a plurality of setting values including at least information indicating a device type and an operating state of a target device subject to malware detection; selecting one detection model out of a plurality of detection models according to the plurality of setting values obtained; obtaining power consumption or current consumption of the target device; and detecting whether the target device is infected with malware, using the one detection model selected in the selecting and based on the power consumption or the current consumption obtained.
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公开(公告)号：US20240031385A1
公开(公告)日：2024-01-25
申请号：US18376591
申请日：2023-10-04
Inventor： Manabu MAEDA , Hideki MATSUSHIMA , Tomoyuki HAGA , Yuji UNAGAMI , Yoshihiro UJIIE , Takeshi KISHIKAWA
IPC: H04L9/40 , H04L12/28 , B60R16/023
CPC classification number: H04L63/1416 , H04L12/28 , B60R16/0231 , H04L63/1425 , H04L2012/40215
Abstract: A fraud detecting method for use in an in-vehicle network system including a plurality of electronic control units that communicate with each other via a network includes detecting whether a state of a vehicle satisfies a first condition or a second condition, and switching, upon detecting that the state of the vehicle satisfies the first condition or the second condition, an operation mode of a second electronic control unit connected to the network. A first mode in which a first type of detecting process for detecting a fraudulent message in the network is performed is switched to a second mode in which the first type of detecting process is not performed upon detecting that the state of the vehicle satisfies the first condition. Moreover, the second mode is switched to the first mode upon detecting that the state of the vehicle satisfies the second condition.
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49.发明公开公开(公告)号：US20230351825A1
公开(公告)日：2023-11-02
申请号：US18218807
申请日：2023-07-06
Inventor： Masashi HISAI , Manabu MAEDA , Ryo KATO , Naohisa NISHIDA , Kenji HARADA , Tomoyuki HAGA , Yuji UNAGAMI
CPC classification number: G07C9/00309 , G07C9/00571 , G07C9/00563 , G07C9/253 , G07C9/27 , G07C2209/63
Abstract: An electric lock control method includes: performing a first determination of whether a person is present in a predetermined region surrounding an electric lock, based on first information generated by an electronic device; when it is determined that a first person is present in the predetermined region in the performing of the first determination, performing a second determination of whether the first person is a person who is permitted to unlock the electric lock, based on second information related to movement of the first person; and controlling a state of the electric lock based on a result of the second determination, the state being a locked state or an unlocked state.
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公开(公告)号：US20230048058A1
公开(公告)日：2023-02-16
申请号：US17975004
申请日：2022-10-27
Inventor： Manabu MAEDA , Toshihisa NAKANO , Yoshiharu IMAMOTO
IPC: H04L12/40
Abstract: In an anomaly determination method for determining an anomaly in a received message, a plurality of messages which include messages that are periodic and each of which includes a first field having a fixed value and a second field having a variable value are each received as the received message, and one of a plurality of combinations to be used for determination each of which includes at least one of a plurality of anomaly determinations including an anomaly determination utilizing a reception timing based on the periodicity or the number of received messages, an anomaly determination utilizing the first field, and an anomaly determination utilizing the second field, is selected according to one or more criteria among available execution time of the anomaly determination method, a load amount, a data amount, and the number of messages.
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