Patents by Inventor Tetsuya Shigeeda

Tetsuya Shigeeda 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).

  • Patent number: 11097622
    Abstract: A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a transmission unit connected to the pair of terminals via a pair of capacitor, and a DC power supply, a switch, and inductances, each connected in series between the pair of terminals without interposition of the pair of capacitors. A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a reception unit connected to the pair of terminals via a pair of capacitors, and a load resistor and inductances each connected in series between the pair of terminals without interposition of the pair of capacitors.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: August 24, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 11007881
    Abstract: A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a transmission unit connected to the pair of terminals via a pair of capacitors, a direct-current (DC) power supply connected in series between the pair of terminals without interposition of the pair of capacitors, and switches disposed on opposite sides of the DC power supply. A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a reception unit connected to the pair of terminals via a pair of capacitors, a load resistor and inductances connected in series between the pair of terminals without interposition of the pair of capacitors.
    Type: Grant
    Filed: October 24, 2016
    Date of Patent: May 18, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 10897426
    Abstract: The present invention provides a reception apparatus constituting an information-control central apparatus that is a communication apparatus that performs one-to-many communication with devices as a plurality of counterpart communication apparatuses. The reception apparatus includes a packet processor that processes a received packet and a buffer that, in response to input of a packet received from a counterpart communication apparatus, adjusts an interval between packets to be sequentially inputted to the packet processor to a specified value or more and outputs the input packet to the packet processor, thereby to avoid occurrence of packet loss.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 19, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 10589586
    Abstract: An inter-vehicle transfer apparatus in a vehicle includes a pulse transformer and auxiliary coils. The pulse transformer includes a first coil wound around a core and connected at one end to an electrical coupler; a capacitor connected at one end to the other end of the coil; and a second coil wound around the core in the same direction as the first coil, connected at one end to the other end of the capacitor, and connected at the other end to the electrical coupler. One auxiliary coil is connected at one end to the first coil. The other auxiliary coil is connected at one end to the second coil. In the inter-vehicle transfer apparatus, the other end of one auxiliary coil and the other end of the other auxiliary coil are connected to each other to enable application of a direct-current voltage across contact portions in the electrical coupler.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: March 17, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Publication number: 20190263273
    Abstract: A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a transmission unit connected to the pair of terminals via a pair of capacitor, and a DC power supply, a switch, and inductances, each connected in series between the pair of terminals without interposition of the pair of capacitors. A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a reception unit connected to the pair of terminals via a pair of capacitors, and a load resistor and inductances each connected in series between the pair of terminals without interposition of the pair of capacitors.
    Type: Application
    Filed: October 24, 2016
    Publication date: August 29, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tetsuya Shigeeda
  • Publication number: 20190248249
    Abstract: A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a transmission unit connected to the pair of terminals via a pair of capacitors, a direct-current (DC) power supply connected in series between the pair of terminals without interposition of the pair of capacitors, and switches disposed on opposite sides of the DC power supply. A transmission device includes a pair of terminals connected to an electrical coupler via a pair of signal lines, a reception unit connected to the pair of terminals via a pair of capacitors, a load resistor and inductances connected in series between the pair of terminals without interposition of the pair of capacitors.
    Type: Application
    Filed: October 24, 2016
    Publication date: August 15, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tetsuya SHIGEEDA
  • Patent number: 10277555
    Abstract: An IP address distribution device sequentially transmits, to a terminal device on receiving an IP address request signal from the terminal device, IP address distribution signals including respective distribution IP addresses that are IP addresses selected one by one from among all unused IP addresses in a network. For the received IP address distribution signals, the switch device is subjected to setting to determine passage or blockage of the IP address distribution signal for each port in accordance with contents of all or a part of the distribution IP address included in the IP address distribution signal.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: April 30, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Publication number: 20180201079
    Abstract: An inter-vehicle transfer apparatus in a vehicle includes a pulse transformer and auxiliary coils. The pulse transformer includes a first coil wound around a core and connected at one end to an electrical coupler; a capacitor connected at one end to the other end of the coil; and a second coil wound around the core in the same direction as the first coil, connected at one end to the other end of the capacitor, and connected at the other end to the electrical coupler. One auxiliary coil is connected at one end to the first coil. The other auxiliary coil is connected at one end to the second coil. In the inter-vehicle transfer apparatus, the other end of one auxiliary coil and the other end of the other auxiliary coil are connected to each other to enable application of a direct-current voltage across contact portions in the electrical coupler.
    Type: Application
    Filed: July 21, 2015
    Publication date: July 19, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tetsuya SHIGEEDA
  • Patent number: 10009314
    Abstract: The present invention provides an IP address distribution system including a network that is formed by a switch and an IP address distribution apparatus that is connected to the network. When receiving a signal including a distribution IP address, which is an IP address to be distributed to an apparatus that requests the IP address by the IP address distribution apparatus, the switch rewrites one part or entire of the distribution IP address included in the received signal to a value corresponding to a port that relays the signal.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: June 26, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 9923733
    Abstract: A network system that comprises a plurality of communication apparatuses, each of the communication apparatuses being capable of performing a VLAN setting by using a VLAN number set for a connection port, that sets a VLAN number for each of the communication apparatuses, and that performs communication among cars of a train, wherein in a case where a specific type of packet that disables a VLAN setting is a packet of a multicast address, when a distribution target apparatus is connected to a communication apparatus that has received the specific type of packet, the communication apparatus transfers the specific type of packet to the distribution target apparatus and, irrespective of a VLAN number set for another communication apparatus, regards a VLAN different from a VLAN of the communication apparatus as a same network and transfers the specific type of packet to the another communication apparatus.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: March 20, 2018
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya Shigeeda, Shingo Honda
  • Patent number: 9838057
    Abstract: An inter-vehicle communication device of a vehicle provided with an electrical coupler that constructs a communication path with another vehicle by using an electric contact with said another vehicle is provided. The inter-vehicle communication device has: a communication control circuit controlling a communication with said another vehicle; a pulse transformer arranged between the communication control circuit and the electrical coupler; and a power supply device arranged between a middle point of the pulse transformer and the electrical coupler to apply a direct-current voltage to the electric contact between the electrical coupler and an electrical coupler of said another vehicle.
    Type: Grant
    Filed: June 10, 2013
    Date of Patent: December 5, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 9813503
    Abstract: An IP-address distribution system according to the present invention includes a network formed by a plurality of switching devices, and a plurality of IP-address distribution devices connected to the network, wherein the switching devices are grouped into two or more groups, and the switching devices interrupt an IP-address request signal transmitted from a terminal that requests allocation of an IP address at a physical port to which a switching device in another group is connected.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: November 7, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya Shigeeda, Shingo Honda
  • Patent number: 9762674
    Abstract: Provided is a network that is constituted in a train formation; communication relay devices; terminal devices; and a position-information distribution device. The communication relay devices rewrite position information from the position-information distribution device to vehicle information indicating positions of vehicles that are provided with the communication relay devices and transfer rewritten information. The terminal devices include an IP-address correspondence table in which IP addresses that are set so as not to overlap with each other for respective types of the terminal devices and are to be used while corresponding to the vehicle information and connection destination information of the terminal devices correspond to each other. IP addresses to be allocated to the terminal devices are decided on the basis of the correspondence table and the vehicle information from the communication relay devices.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: September 12, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Publication number: 20170214653
    Abstract: An IP address distribution device sequentially transmits, to a terminal device on receiving an IP address request signal from the terminal device, IP address distribution signals including respective distribution IP addresses that are IP addresses selected one by one from among all unused IP addresses in a network. For the received IP address distribution signals, the switch device is subjected to setting to determine passage or blockage of the IP address distribution signal for each port in accordance with contents of all or a part of the distribution IP address included in the IP address distribution signal.
    Type: Application
    Filed: July 18, 2014
    Publication date: July 27, 2017
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tetsuya SHIGEEDA
  • Patent number: 9571298
    Abstract: In a configuration where an apparatus network is connected to a backbone network at two points, a first apparatus and a first switch device are normally communicatively connected to each other and also communication between a second apparatus and a second switch device is normally disconnected. The first apparatus monitors the link state with the first switch device. The second apparatus queries the first apparatus about the link state. When the first apparatus and the first switch device are not communicatively connected to each other or when the second apparatus cannot communicate with the first apparatus via the apparatus network, the second apparatus cancels the disconnected state with the second switch device.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: February 14, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 9565133
    Abstract: To provide a network system including a network constructed by combining a plurality of switching devices. The network includes a first partial network including switching devices and a second partial network that is formed outside the first partial network and includes switching devices. The switching device in the first partial network connected to the second partial network blocks passage of a broadcast signal that is transmitted from a terminal device and that has a specific logical port number as transmission information at a physical port.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: February 7, 2017
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Patent number: 9531567
    Abstract: A communication apparatus for performing communication among cars of a train includes two or more connection ports, and two or more VLANs set through VLAN numbers in each connection port. When receiving a specific kind of packet for disabling the VLAN settings, the communication apparatus regards the set two or more VLANs as the same network with respect to the specific kind of packet and transfers the packet to a desired destination apparatus set in any one of the VLANs irrespective of the VLAN settings.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: December 27, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tetsuya Shigeeda, Shingo Honda
  • Publication number: 20160212059
    Abstract: The present invention provides a reception apparatus constituting an information-control central apparatus that is a communication apparatus that performs one-to-many communication with devices as a plurality of counterpart communication apparatuses. The reception apparatus includes a packet processor that processes a received packet and a buffer that, in response to input of a packet received from a counterpart communication apparatus, adjusts an interval between packets to be sequentially inputted to the packet processor to a specified value or more and outputs the input packet to the packet processor, thereby to avoid occurrence of packet loss.
    Type: Application
    Filed: September 30, 2013
    Publication date: July 21, 2016
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya SHIGEEDA
  • Patent number: 9391950
    Abstract: An IP address distribution system includes a network containing a plurality of switch apparatuses, IP address distribution apparatuses that assign an IP address according to a request from each of devices connected to the switch apparatuses, and a plurality of position information distribution apparatuses that broadcast a position information packet containing position information into the network, wherein a specific physical port of at least one switch apparatus blocks the position information packet to cause only a single position information packet to be delivered to the devices, the devices transmit an IP-address request signal containing the position information and device-specific information, when requesting assignment of an IP address, and the IP address distribution apparatuses select an IP address from a range corresponding to the position information and the device-specific information and distribute the IP address to a request source device, when receiving the IP-address request signal.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: July 12, 2016
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Tetsuya Shigeeda
  • Publication number: 20160164829
    Abstract: The present invention provides an IP address distribution system including a network that is formed by a switch and an IP address distribution apparatus that is connected to the network. When receiving a signal including a distribution IP address, which is an IP address to be distributed to an apparatus that requests the IP address by the IP address distribution apparatus, the switch rewrites one part or entire of the distribution IP address included in the received signal to a value corresponding to a port that relays the signal.
    Type: Application
    Filed: September 12, 2013
    Publication date: June 9, 2016
    Applicant: Mitsubishi Electric Corporation
    Inventor: Tetsuya SHIGEEDA