Patents by Inventor Yoshihiro Ujiie

Yoshihiro Ujiie has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220116405
    Abstract: An electronic control unit is connected to a network in an in-vehicle network system. The electronic control unit includes a first control circuit and a second control circuit. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on a frame to determine conformity of the frame with a first rule. Upon determining that the frame conforms to the first rule, the second control circuit transmits the frame to the first control circuit. The first control circuit performs a second determination process on the frame to determine conformity of the frame with a second rule. The second rule is different from the first rule.
    Type: Application
    Filed: December 22, 2021
    Publication date: April 14, 2022
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Jun ANZAI, Yoshihiko KITAMURA, Masato TANABE, Hideki MATSUSHIMA, Tomoyuki HAGA, Takeshi KISHIKAWA, Ryota SUGIYAMA
  • Patent number: 11296965
    Abstract: An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a mobility entity. In the abnormality detection method, for example, a gateway transmits identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: April 5, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Tomoyuki Haga, Manabu Maeda, Hideki Matsushima, Takeshi Kishikawa, Junichi Tsurumi, Hisashi Kashima, Yukino Toriumi, Takuya Kuwahara
  • Patent number: 11240253
    Abstract: An electronic control unit is connected to a network in an in-vehicle network system. The electronic control unit includes a first control circuit and a second control circuit. The first control circuit is connected to the network via the second control circuit. The second control circuit performs a first determination process on a frame to determine conformity of the frame with a first rule. Upon determining that the frame conforms to the first rule, the second control circuit transmits the frame to the first control circuit. The first control circuit performs a second determination process on the frame to determine conformity of the frame with a second rule. The second rule is different from the first rule.
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: February 1, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Jun Anzai, Yoshihiko Kitamura, Masato Tanabe, Hideki Matsushima, Tomoyuki Haga, Takeshi Kishikawa, Ryota Sugiyama
  • Patent number: 11223525
    Abstract: A gateway device connected to a network used in communication by multiple electronic control units provided on-board a vehicle. The gateway device performs operations including receiving firmware update information that includes updated firmware for one electronic control unit among the electronic control units, and acquiring system configuration information indicating a function of each of the electronic control units connected to the network. The gateway device further performs a controlling operation to update firmware of the one electronic control unit, for which updated firmware is received by the receiving, on a basis of the updated firmware, after an operation verification of the updated firmware is performed in an operating environment appropriately. The operating environment being configured with electronic control units of the same functions as each of the electronic control units indicated by the system configuration information.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: January 11, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Manabu Maeda, Hideki Matsushima, Tomoyuki Haga, Yoshihiro Ujiie, Takeshi Kishikawa
  • Patent number: 11190533
    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.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: November 30, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Junichi Tsurumi, Yoshihiro Ujiie, Takamitsu Sasaki, Takeshi Kishikawa, Tohru Wakabayashi, Toshihisa Nakano
  • Publication number: 20210365542
    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.
    Type: Application
    Filed: August 4, 2021
    Publication date: November 25, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Masato TANABE, Takeshi KISHIKAWA, Tomoyuki HAGA, Hideki MATSUSHIMA
  • Patent number: 11178013
    Abstract: Provided is a network monitor for a mobility network used in a mobility entity. The mobility network is formed of a source unit, a destination unit, and one or more repeaters. Each repeater includes a network monitor that receives, from the source unit, an announcement for a bandwidth reservation. The announcement includes a value of a first bandwidth requirement for the source unit to perform first data communication. The network monitor further determines a determination result of whether to reserve the first bandwidth by comparing the value of the first bandwidth with a range of values of a second bandwidth for the first data communication specified in a white list stored in a database. The network monitor reserves the first bandwidth for performing the first data communication depending on the determination result, and transmits, to the source unit, a reservation status of the first bandwidth.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: November 16, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Hiroyasu Terazawa, Tomoyuki Haga, Yuishi Torisaki, Ryo Kato, Yoshihiro Ujiie
  • Publication number: 20210349977
    Abstract: A vehicle surveillance device for an in-vehicle network system that includes one or more electronic control units includes: a frame transmitter and receiver that receives a frame flowing over the in-vehicle network system; and a score calculator that detects a suspicious behavior different from a normal driving behavior based on the frame received by the frame transmitter and receiver and vehicle data including information on one or more frames received by the frame transmitter and receiver prior to receiving the frame, and calculates, based on a detection result, a score indicating a likelihood that reverse engineering has been performed on a vehicle provided with the in-vehicle network system.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Takeshi KISHIKAWA, Ryo HIRANO, Yoshihiro UJIIE, Tomoyuki HAGA
  • Publication number: 20210349997
    Abstract: An anomalous vehicle detection server includes an anomaly score calculator that detects a suspicious behavior different from a predetermined driving behavior based on pieces of vehicle information that are received from a plurality of vehicles, respectively, and are each based on a vehicle log including the content of an event that has occurred in a vehicle system provided in the vehicle, and acquires an anomaly score of each of the plurality of vehicles that indicates a likelihood that reverse engineering is performed on the vehicle; and an anomalous vehicle determiner that determines whether one vehicle of the plurality of vehicles is an anomalous vehicle based on the anomaly score of the one vehicle and a statistical value of the anomaly scores of two or more vehicles of the plurality of vehicles.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Ryo HIRANO, Takeshi KISHIKAWA, Yoshihiro UJIIE, Tomoyuki HAGA
  • Publication number: 20210349981
    Abstract: An authentication method is used by an automated driving system that includes a vehicle and an external device, the external device communicating with the vehicle to cause the vehicle to implement automated driving. The vehicle holds a first certificate that certifies validity of the vehicle. The external device holds a second certificate that certifies validity of the external device. The authentication method includes: validating a third certificate that certifies validity of a combination of the vehicle and the external device, in accordance with a result of device authentication performed between the vehicle and the external device by reference to the first certificate and the second certificate.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Yoshihiro UJIIE, Hideki MATSUSHIMA, Makoto FUJIWARA
  • Publication number: 20210314336
    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.
    Type: Application
    Filed: June 22, 2021
    Publication date: October 7, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Takeshi KISHIKAWA, Ryo HIRANO, Yoshihiro UJIIE, Tomoyuki HAGA
  • Publication number: 20210306365
    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, a frame including predetermined consecutive dominant bits for notifying an anomaly is transmitted before an end of the frame is transmitted. A number of times the frame including the predetermined consecutive dominant bits 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.
    Type: Application
    Filed: June 10, 2021
    Publication date: September 30, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Hideki MATSUSHIMA, Tomoyuki HAGA, Manabu MAEDA, Yuji UNAGAMI, Takeshi KISHIKAWA
  • Publication number: 20210281595
    Abstract: An anomaly detection device (IDS ECU) includes a detection rule generator that monitors a communication establishment frame flowing over Ethernet in a communication establishment phase of service-oriented communication and that generates, for each communication ID, a detection rule including the communication ID written in the communication establishment frame and a server (or client) address written in the communication establishment frame; an anomaly detector that monitors a communication frame flowing over the Ethernet in a communication phase of the service-oriented communication and that, by referring to a detection rule that includes a communication ID written in the communication frame, detects the communication frame as an anomalous frame when a server (or client) address written in the communication frame differs from a server (or client) address included in the detection rule; and an anomaly notifier that provides a notification of an anomaly in response to the anomalous frame being detected.
    Type: Application
    Filed: May 25, 2021
    Publication date: September 9, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Ryo HIRANO, Takeshi KISHIKAWA, Yoshihiro UJIIE, Tomoyuki HAGA
  • Patent number: 11113382
    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 via the bus and verifies the message authentication code in accordance with the identifier included in the at least one data frame.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 7, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Masato Tanabe, Takeshi Kishikawa, Tomoyuki Haga, Hideki Matsushima
  • Publication number: 20210226966
    Abstract: In an anti-fraud control system, a first error monitoring device includes a first frame transmitting and receiving unit that receives a frame flowing on the on-board network; and a first error detector that causes transmission of an error notification frame for notifying of an occurrence of an error in the frame when detecting the occurrence of the error in the frame received by the first frame transmitting and receiving unit. Each of second error monitoring devices includes: a second frame transmitting and receiving unit that receives the error notification frame; and a second error detector that regards, as a frame to be invalidated, the frame subjected to the error and included in the received error notification frame, and shifts the second error monitoring device to an invalidation mode for invalidating reception of subsequent frames, if no error is detected in an own branch with respect to the frame.
    Type: Application
    Filed: April 7, 2021
    Publication date: July 22, 2021
    Applicant: Panasonic Intellectual Property Corporation of America
    Inventors: Takeshi KISHIKAWA, Ryo HIRANO, Yoshihiro UJIIE
  • Publication number: 20210226872
    Abstract: An abnormality detection method is provided. The abnormality detection method is for detecting an abnormality that may be transmitted to a bus in an on-board network system. The on-board network system includes a plurality of electronic controllers that transmit and receive messages via the bus in a mobility entity. In the abnormality detection method, for example, a gateway transmits identification information to a server and receives a response determining a unit time. An operation process is performed using feature information based on a number of messages received from the bus per the determined unit time and using a model indicating a criterion in terms of a message occurrence frequency. A judgment is made as to an abnormality according to a result of the operation process.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 22, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Tomoyuki HAGA, Manabu MAEDA, Hideki MATSUSHIMA, Takeshi KISHIKAWA, Junichi TSURUMI, Hisashi KASHIMA, Yukino TORIUMI, Takuya KUWAHARA
  • Patent number: 11063971
    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.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: July 13, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro Ujiie, Hideki Matsushima, Tomoyuki Haga, Manabu Maeda, Yuji Unagami, Takeshi Kishikawa
  • Publication number: 20210203525
    Abstract: A gateway device for a vehicle network system installed in a vehicle is provided. The vehicle network system includes a network, an electronic control unit connected to the network, and the gateway device connected to the first network and configured to communicate outside the vehicle. The gateway device receives a first frame from outside the vehicle; determines whether or not the first frame is appropriate; generates a second frame when the first frame is not determined to be appropriate; and transmits the second frame to the network. The second frame includes control information and additional information based on content of the first frame. The control information restricts processing of the additional information included in the second frame by the electronic control unit, after the second frame is received by the electronic control unit.
    Type: Application
    Filed: March 15, 2021
    Publication date: July 1, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yoshihiro UJIIE, Hideki MATSUSHIMA, Toshihisa NAKANO, Tohru WAKABAYASHI, Hiroshi AMANO, Tomoyuki HAGA, Takeshi KISHIKAWA
  • Publication number: 20210188201
    Abstract: A gateway connected to a bus, a bus, and the like used by a plurality of electronic control units for communication includes a frame communication unit that receives a frame, a transfer control unit that removes verification information used to verify a frame from the content of the frame received by the frame communication unit and transfers the frame to a destination bus or that adds verification information to the content of the frame and transfers the frame to the destination bus, and the like.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Tomoyuki HAGA, Toshihisa NAKANO, Jun ANZAI, Hideki MATSUSHIMA, Yoshihiro UJIIE, Yuji UNAGAMI
  • Publication number: 20210185056
    Abstract: In a fraud-detection method for use in an in-vehicle network system including a plurality of electronic control units (ECUs) that exchange messages on a plurality of networks, a plurality of fraud-detection ECUs each connected to a different one of the networks, and a gateway device, a fraud-detection ECU determines whether a message transmitted on a network connected to the fraud-detection ECU is malicious by using rule information stored in a memory. The gateway device receives updated rule information transmitted to a first network among the networks, selects a second network different from the first network, and transfers the updated rule information only to the second network. A fraud-detection ECU connected to the second network acquires the updated rule information and updates the rule information stored therein by using the updated rule information.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 17, 2021
    Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
    Inventors: Yuji UNAGAMI, Hideki MATSUSHIMA, Tomoyuki HAGA, Manabu MAEDA, Yoshihiro UJIIE, Takeshi KISHIKAWA