Patents by Inventor Joji Ido
Joji Ido 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: 20200195456Abstract: A relay that controls packet transfer includes: a storage that stores output cycle control information in which an output cycle at which a packet identified by identification information is output, and a determination value indicating whether to output the packet identified by the identification information are set for a set of a port as an output destination of the packet and the identification information for identifying the packet; a cycle controller that rewrites the determination value at each set output cycle; and a transfer processor that controls output of the received packet, in accordance with the determination value.Type: ApplicationFiled: January 27, 2017Publication date: June 18, 2020Applicant: Mitsubishi Electric CorporationInventors: Joji Ido, Akikazu Yasui
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Patent number: 10069709Abstract: A communication apparatus that forms, in a train in which fixed formations are coupled, a backbone network relaying signals between branch networks formed in the fixed formations with another communication apparatus that is made redundant, includes: a VRRP functional unit that, when operating as a master, periodically transmits an alive monitoring frame to another communication apparatus operating as a backup via the branch network, and, when operating as a backup, receives an alive monitoring frame transmitted from another communication apparatus operating as a master via the branch network; a port-malfunction detection unit detecting malfunction of the port to which the branch network is connected; and an alive determination unit that, when operating as a backup, detects whether another communication apparatus operating as a master has malfunctioned based on an alive-monitoring-frame reception result from the VRRP functional unit and a malfunction detection result from the port-malfunction detection unit.Type: GrantFiled: May 17, 2013Date of Patent: September 4, 2018Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuji Ogawa, Joji Ido, Shogo Tatsumi
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Patent number: 9787542Abstract: A central device includes an information replacing unit. When the information replacing unit detects, on the basis of contact information acquired from an electric coupler provided in a coupled vehicle in a formation B having a train-information management device that manages vehicle information in accordance with the Ethernet® protocol, that a formation A that includes a train-information management device that manages vehicle information in accordance with the ARCNET protocol is coupled to the formation B, then the information replacing unit replaces vehicle information from the formation A with vehicle information in accordance with the Ethernet® protocol; outputs the replaced vehicle information to the formation B; replaces the vehicle information from the formation B with the vehicle information in accordance with the ARCNET protocol; and outputs the replaced vehicle information to the formation A.Type: GrantFiled: May 20, 2013Date of Patent: October 10, 2017Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsuo Komura, Takashi Miyauchi, Toshiko Kadono, Akinori Yoshinaga, Joji Ido
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Publication number: 20150381458Abstract: A communication apparatus that forms, in a train in which fixed formations are coupled, a backbone network relaying signals between branch networks formed in the fixed formations with another communication apparatus that is made redundant, includes: a VRRP functional unit that, when operating as a master, periodically transmits an alive monitoring frame to another communication apparatus operating as a backup via the branch network, and, when operating as a backup, receives an alive monitoring frame transmitted from another communication apparatus operating as a master via the branch network; a port-malfunction detection unit detecting malfunction of the port to which the branch network is connected; and an alive determination unit that, when operating as a backup, detects whether another communication apparatus operating as a master has malfunctioned based on an alive-monitoring-frame reception result from the VRRP functional unit and a malfunction detection result from the port-malfunction detection unit.Type: ApplicationFiled: May 17, 2013Publication date: December 31, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yuji OGAWA, Joji IDO, Shogo TATSUMI
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Publication number: 20150358199Abstract: A central device includes an information replacing unit. When the information replacing unit detects, on the basis of contact information acquired from an electric coupler provided in a coupled vehicle in a formation B having a train-information management device that manages vehicle information in accordance with the Ethernet® protocol, that a formation A that includes a train-information management device that manages vehicle information in accordance with the ARCNET protocol is coupled to the formation B, then the information replacing unit replaces vehicle information from the formation A with vehicle information in accordance with the Ethernet® protocol; outputs the replaced vehicle information to the formation B; replaces the vehicle information from the formation B with the vehicle information in accordance with the ARCNET protocol; and outputs the replaced vehicle information to the formation A.Type: ApplicationFiled: May 20, 2013Publication date: December 10, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tetsuo KOMURA, Takashi MIYAUCHI, Toshiko KADONO, Akinori YOSHINAGA, Joji IDO
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Publication number: 20150341204Abstract: A second-system terminal device installed in one vehicle is connected to a first-system backbone transmission line and a second-system backbone transmission line, and when having received a status information packet B from a first-system terminal device installed in another vehicle from the first-system backbone transmission line or the second-system backbone transmission line, the second-system terminal device installed in the one vehicle transfers a control packet A to the second-system terminal device adjacent to a side farther from a central device than the second-system terminal device that has received the status information packet B, by using the backbone transmission line from which the status information packet B has been received.Type: ApplicationFiled: March 11, 2013Publication date: November 26, 2015Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shogo TATSUMI, Yosuke ASAI, Shingo HONDA, Yusuke ISHIMARU, Joji IDO
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Patent number: 8260855Abstract: Relay devices 1 and vehicle monitoring control devices 2 include communication cycle management sections 111 and 211 for managing communication cycles in accordance with cycle information that divides the communication cycle to communication enabled periods which include a period of enabling only communication of a message to be communicated periodically and correspond to a communication period of a message; and carry out communication in the communication cycles managed by the communication cycle management sections 111 and 211.Type: GrantFiled: November 27, 2008Date of Patent: September 4, 2012Assignee: Mitsubishi Electric CorporationInventors: Joji Ido, Shogo Tatsumi
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Publication number: 20110113093Abstract: Relay devices 1 and vehicle monitoring control devices 2 include communication cycle management sections 111 and 211 for managing communication cycles in accordance with cycle information that divides the communication cycle to communication enabled periods which include a period of enabling only communication of a message to be communicated periodically and correspond to a communication period of a message; and carry out communication in the communication cycles managed by the communication cycle management sections 111 and 211.Type: ApplicationFiled: November 27, 2008Publication date: May 12, 2011Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Joji Ido, Shogo Tatsumi