Patents by Inventor HIROYASU TERAZAWA
HIROYASU TERAZAWA 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).
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Publication number: 20230336576Abstract: A threshold value calculation device includes: a device state acquirer that acquires a device state of a first device provided in a facility in which a home network is installed during a first period; an occupancy state determiner that determines an occupancy state by people in the facility during the first period based on information acquired from a second device in the facility; a communication log collector that collects a communication log; and a learner that calculates a threshold value for the communication transmitted and received by the first device during a second period that is a period after the first period. The learner calculates the threshold value for each of combinations of one or more states of the first device and one or more states of the people.Type: ApplicationFiled: June 20, 2023Publication date: October 19, 2023Applicant: Panasonic Intellectual Property Corporation of AmericaInventors: Yusuke SUZUKI, Moe YOSHIDA, Hiroyasu TERAZAWA, Seiichi MUROYA, Toshimasa TAKAKI
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Publication number: 20230216873Abstract: A detection system includes an obtainer that obtains a first log, the first log being a log of communication in a first network; a determiner that determines whether the first log obtained by the obtainer includes anomaly information indicating anomalous communication in a second network; and a controller that, when the determiner has determined that the first log includes the anomaly information, performs control of notifying of an anomaly in the second network.Type: ApplicationFiled: March 1, 2023Publication date: July 6, 2023Applicant: Panasonic Intellectual Property Corporation of AmericaInventors: Yasushi MURAKAWA, Akira KAMOGAWA, Seiichi MUROYA, Hiroyasu TERAZAWA
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Patent number: 11553484Abstract: A communication device is a communication device connected to a mobility network which is a network mounted in a mobility and which is used by a plurality of electronic control devices for communication. The communication device includes: a holding unit which holds range information indicating a transferable path range determined for a message on the mobility network; a receiving unit which receives the message on the mobility network; and a determining unit which determines validity of the received message by using the range information.Type: GrantFiled: December 21, 2020Date of Patent: January 10, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yoshihiro Ujiie, Yuishi Torisaki, Tomoyuki Haga, Hiroyasu Terazawa, Ryo Kato
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Patent number: 11546363Abstract: An anomaly detection device for detecting anomaly in frames flowing through an in-vehicle network system includes: an obtainer that obtains one or more frames; a first holder holding a first rule defining a rule indicating that when a frame satisfies a first condition based on a source or a destination, the frame is to be transferred; a first frame controller that transfers the one or more frames in accordance with the first rule; a second holder holding a second rule defining a rule indicating that a frame satisfying a second condition is to be determined as being anomalous; and a second frame controller that performs, in accordance with the second rule, an anomaly detection process on each of the one or more frames transferred by the first frame controller. When an anomalous frame is detected, the second frame controller provides or stores a detection result.Type: GrantFiled: June 10, 2020Date of Patent: January 3, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Tomoyuki Haga, Yuishi Torisaki, Hiroyasu Terazawa, Ryo Kato
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Patent number: 11539727Abstract: An abnormality detection apparatus for a mobility entity and for detecting an abnormality in a network system is provided. The network system includes a first network and a second network that use different communication protocols. A first communication circuit receives state information indicating a state of the mobility entity. The state information is acquired from the second network. A second communication circuit transmits and receives a first frame according to a communication protocol used in the first network. A memory stores an abnormality detection rule. A processor detects, based on the state information and the abnormality detection rule, whether a control command included in the first frame received by the second communication circuit is abnormal. In a case where the control command is abnormal, the processor prohibits the control command from being transmitted.Type: GrantFiled: December 30, 2019Date of Patent: December 27, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Tomoyuki Haga, Masato Tanabe, Yuishi Torisaki, Hiroyasu Terazawa, Ryo Kato
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Patent number: 11438355Abstract: An anomaly detection system is on an in-vehicle network including: a first network connected to first devices that communicate using a first protocol; and a second network connected to second devices that includes a driving assistance controller communicates using a second protocol. The system includes: a communicator receiving, through the first network, first unit data including (i) source information indicating a source first device and (ii) second unit data including a data identifier; a database storing rule; and an anomaly determiner that determines whether the first unit data has anomaly by comparing the source information and the data identifier with the rule. Based on the rule, the first unit data is determined to have anomaly when the source first device is a sensing device and, according to the identifier, the second unit data is to be received by the controller.Type: GrantFiled: March 13, 2020Date of Patent: September 6, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Hiroyasu Terazawa, Tomoyuki Haga, Yuishi Torisaki, Ryo Kato
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Patent number: 11381420Abstract: An in-vehicle relay device prevents an anomaly of a control command exchanged over networks having different transmittable data sizes in a frame. The in-vehicle relay device relays communication between multiple control devices in a vehicle over the networks to which the control devices are connected. The in-vehicle relay device receives control data from a first control network. The control data includes, in a frame, a plurality of control commands to be executed by at least one of the control devices. The in-vehicle relay device determines, as a first determination, whether types of the control commands included in the frame form a first combination that is preset as a combination of control commands that are executable simultaneously. The in-vehicle relay device thereafter determines, as a second determination, whether the control data is anomalous by using the result of the first determination, and outputs the result of the second determination.Type: GrantFiled: January 6, 2020Date of Patent: July 5, 2022Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yuishi Torisaki, Hiroyasu Terazawa, Tomoyuki Haga, Yoshihiro Ujiie, Ryo Kato
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Patent number: 11178013Abstract: 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: GrantFiled: January 6, 2020Date of Patent: November 16, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Hiroyasu Terazawa, Tomoyuki Haga, Yuishi Torisaki, Ryo Kato, Yoshihiro Ujiie
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Publication number: 20210153194Abstract: A communication device is a communication device connected to a mobility network which is a network mounted in a mobility and which is used by a plurality of electronic control devices for communication. The communication device includes: a holding unit which holds range information indicating a transferable path range determined for a message on the mobility network; a receiving unit which receives the message on the mobility network; and a determining unit which determines validity of the received message by using the range information.Type: ApplicationFiled: December 21, 2020Publication date: May 20, 2021Inventors: Yoshihiro UJIIE, Yuishi TORISAKI, Tomoyuki HAGA, Hiroyasu TERAZAWA, Ryo KATO
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Patent number: 10904883Abstract: A communication device is a communication device connected to a mobility network which is a network mounted in a mobility and which is used by a plurality of electronic control devices for communication. The communication device includes: a holding unit which holds range information indicating a transferable path range determined for a message on the mobility network; a receiving unit which receives the message on the mobility network; and a determining unit which determines validity of the received message by using the range information.Type: GrantFiled: April 10, 2019Date of Patent: January 26, 2021Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICAInventors: Yoshihiro Ujiie, Yuishi Torisaki, Tomoyuki Haga, Hiroyasu Terazawa, Ryo Kato
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Publication number: 20200304532Abstract: An anomaly detection device for detecting anomaly in frames flowing through an in-vehicle network system includes: an obtainer that obtains one or more frames; a first holder holding a first rule defining a rule indicating that when a frame satisfies a first condition based on a source or a destination, the frame is to be transferred; a first frame controller that transfers the one or more frames in accordance with the first rule; a second holder holding a second rule defining a rule indicating that a frame satisfying a second condition is to be determined as being anomalous; and a second frame controller that performs, in accordance with the second rule, an anomaly detection process on each of the one or more frames transferred by the first frame controller. When an anomalous frame is detected, the second frame controller provides or stores a detection result.Type: ApplicationFiled: June 10, 2020Publication date: September 24, 2020Inventors: Tomoyuki HAGA, Yuishi TORISAKI, Hiroyasu TERAZAWA, Ryo KATO
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Publication number: 20200220888Abstract: An anomaly detection system is on an in-vehicle network including: a first network connected to first devices that communicate using a first protocol; and a second network connected to second devices that includes a driving assistance controller communicates using a second protocol. The system includes: a communicator receiving, through the first network, first unit data including (i) source information indicating a source first device and (ii) second unit data including a data identifier; a database storing rule; and an anomaly determiner that determines whether the first unit data has anomaly by comparing the source information and the data identifier with the rule. Based on the rule, the first unit data is determined to have anomaly when the source first device is a sensing device and, according to the identifier, the second unit data is to be received by the controller.Type: ApplicationFiled: March 13, 2020Publication date: July 9, 2020Inventors: Hiroyasu TERAZAWA, Tomoyuki HAGA, Yuishi TORISAKI, Ryo KATO
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Publication number: 20200145293Abstract: 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: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Inventors: HIROYASU TERAZAWA, TOMOYUKI HAGA, YUISHI TORISAKI, RYO KATO, YOSHIHIRO UJIIE
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Publication number: 20200145252Abstract: An in-vehicle relay device prevents an anomaly of a control command exchanged over networks having different transmittable data sizes in a frame. The in-vehicle relay device relays communication between multiple control devices in a vehicle over the networks to which the control devices are connected. The in-vehicle relay device receives control data from a first control network. The control data includes, in a frame, a plurality of control commands to be executed by at least one of the control devices. The in-vehicle relay device determines, as a first determination, whether types of the control commands included in the frame form a first combination that is preset as a combination of control commands that are executable simultaneously. The in-vehicle relay device thereafter determines, as a second determination, whether the control data is anomalous by using the result of the first determination, and outputs the result of the second determination.Type: ApplicationFiled: January 6, 2020Publication date: May 7, 2020Inventors: Yuishi TORISAKI, Hiroyasu TERAZAWA, Tomoyuki HAGA, Yoshihiro UJIIE, Ryo KATO
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Publication number: 20200137099Abstract: An abnormality detection apparatus for a mobility entity and for detecting an abnormality in a network system is provided. The network system includes a first network and a second network that use different communication protocols. A first communication circuit receives state information indicating a state of the mobility entity. The state information is acquired from the second network. A second communication circuit transmits and receives a first frame according to a communication protocol used in the first network. A memory stores an abnormality detection rule. A processor detects, based on the state information and the abnormality detection rule, whether a control command included in the first frame received by the second communication circuit is abnormal. In a case where the control command is abnormal, the processor prohibits the control command from being transmitted.Type: ApplicationFiled: December 30, 2019Publication date: April 30, 2020Inventors: TOMOYUKI HAGA, MASATO TANABE, YUISHI TORISAKI, HIROYASU TERAZAWA, RYO KATO
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Publication number: 20190239221Abstract: A communication device is a communication device connected to a mobility network which is a network mounted in a mobility and which is used by a plurality of electronic control devices for communication. The communication device includes: a holding unit which holds range information indicating a transferable path range determined for a message on the mobility network; a receiving unit which receives the message on the mobility network; and a determining unit which determines validity of the received message by using the range information.Type: ApplicationFiled: April 10, 2019Publication date: August 1, 2019Inventors: Yoshihiro UJIIE, Yuishi TORISAKI, Tomoyuki HAGA, Hiroyasu TERAZAWA, Ryo KATO