Patents by Inventor Junichiro Fukuyama

Junichiro Fukuyama 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: 9736755
    Abstract: An open communication method between at least two sub-networks using a broker node. Each of the sub-networks has a different routable network addressing scheme. The method comprises receiving a packet for a specific application, the packet includes an application identifier, determining if the packet is to be relayed to another of the at least two sub-network based upon the application identifier, determining if a node receiving the packet is a broker node, relaying the packet to a broker node if not a broker node and forwarding, by the broker node, the packet to at least one node in another of the at least two sub-network. The node generating the packet is configured to communicate using a first of the at least two sub-networks. A broker node is configured for communicating using at least two of the at least two sub-network via a corresponding routable network addressing schemes for each of the sub-networks.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: August 15, 2017
    Assignee: Telcordia Technologies, Inc.
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Patent number: 9245446
    Abstract: A multiple hop communications method among a plurality of moving vehicles. Each moving vehicles has a plurality of unidirectional radio. The method comprises receiving an incoming packet at one of the plurality of unidirectional radios, determining if there is an active link between each of the plurality of unidirectional radios and an unidirectional radio of a neighbor vehicle, relaying the incoming packet to the plurality of unidirectional radios having an active link and transmitting the incoming packet as an outgoing packet from at least one of the plurality of unidirectional radios. If more than one packet is received, the packets can be encoded using group coding before send the packets out as an outgoing packet.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: January 26, 2016
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Patent number: 9077720
    Abstract: Network architecture configured for open communication between a plurality of sub-networks. Each of the plurality of sub-networks has a different routable network addressing scheme. The architecture includes at least one broker node adapted to communicate using at least two different routable network addressing schemes. The broker node comprises an identification management module configured to collect peer-application addresses for nodes currently accessing a specific application, the peer-application addresses being associated with a specific application, an address resolution module configured to map each of the peer-application addresses to a sub-network specific routable network address and a network coordination module configured to monitor and coordinate sub-network communication capabilities between the broker node and at least one other broker node and elect a primary broker node for each sub-network which the broker node and at least one other broker node is capable of communication.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: July 7, 2015
    Assignee: Telcordia Technologies, Inc.
    Inventors: Wai Chen, John Lee, Ratul Guha, Yibei Ling, Taek-Jin Kwon, Rama Vuyyuru, Junichiro Fukuyama
  • Publication number: 20150055540
    Abstract: An open communication method between at least two sub-networks using a broker node. Each of the sub-networks has a different routable network addressing scheme. The method comprises receiving a packet for a specific application, the packet includes an application identifier, determining if the packet is to be relayed to another of the at least two sub-network based upon the application identifier, determining if a node receiving the packet is a broker node, relaying the packet to a broker node if not a broker node and forwarding, by the broker node, the packet to at least one node in another of the at least two sub-network. The node generating the packet is configured to communicate using a first of the at least two sub-networks. A broker node is configured for communicating using at least two of the at least two sub-network via a corresponding routable network addressing schemes for each of the sub-networks.
    Type: Application
    Filed: July 28, 2014
    Publication date: February 26, 2015
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Patent number: 8894413
    Abstract: A method, simulator and program for simulating vehicular movement based upon user input parameters related to simulation topology and simulation vehicles including, but not limited to linear vehicular density. The simulator generates the simulation topology having a simulation area using the user input parameters, places a plurality of simulation vehicles within the simulation area at an initial placement using at least two input parameters related to simulation vehicle and the generated simulation topology; and determines movement of the plurality of simulation vehicles starting with the initial placement using a plurality of movement models. Each of the plurality of simulation vehicles has mobility characteristics generated using the plurality of movement models. When vehicle moves outside the simulation area, the vehicle re-emerges at a location within the simulation area. The vehicle re-emerges with new movement characteristics.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: November 25, 2014
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, USA, Inc.
    Inventors: Marcus Pang, Wai Chen, Jasmine Chennikara-Varghese, Ratul Guha, John Lee, Rama Vuyyuru, Junichiro Fukuyama
  • Patent number: 8792492
    Abstract: An open communication method between at least two sub-networks using a broker node. Each of the sub-networks has a different routable network addressing scheme. The method comprises receiving a packet for a specific application, the packet includes an application identifier, determining if the packet is to be relayed to another of the at least two sub-networks based upon the application identifier, determining if a node receiving the packet is a broker node, relaying the packet to a broker node if not a broker node and forwarding, by the broker node, the packet to at least one node in another of the at least two sub-networks. The node generating the packet communicates using a first of the at least two sub-networks. A broker node communicates using at least two of the at least two sub-networks via a corresponding routable network addressing schemes for each of the sub-networks.
    Type: Grant
    Filed: October 17, 2011
    Date of Patent: July 29, 2014
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center U.S.A., Inc.
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Publication number: 20140133402
    Abstract: Network architecture configured for open communication between a plurality of sub-networks. Each of the plurality of sub-networks has a different routable network addressing scheme. The architecture includes at least one broker node adapted to communicate using at least two different routable network addressing schemes. The broker node comprises an identification management module configured to collect peer-application addresses for nodes currently accessing a specific application, the peer-application addresses being associated with a specific application, an address resolution module configured to map each of the peer-application addresses to a sub-network specific routable network address and a network coordination module configured to monitor and coordinate sub-network communication capabilities between the broker node and at least one other broker node and elect a primary broker node for each sub-network which the broker node and at least one other broker node is capable of communication.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 15, 2014
    Applicants: Toyota InfoTechnology Center, U.S.A., Inc., Telcordia Technologies, Inc.
    Inventors: Wai Chen, John Lee, Ratul Guha, Yibei Ling, Taek-Jin Kwon, Rama Vuyyuru, Junichiro Fukuyama
  • Patent number: 8725395
    Abstract: A first leader vehicle system and method for forming a first group including the first leader vehicle system is disclosed. The first leader vehicle system comprises a requesting module, a determination module and an aggregation module. The requesting module identifies a second leader vehicle system within a transmission range. The second leader vehicle system is in a second group. The requesting module chooses a first merging direction and receives a second merging direction chosen by the second leader vehicle system. The determination module determines that the first merging direction matches the second merging direction. The aggregation module aggregates probe vehicle data from the second leader vehicle system based at least in part on the determination that the first merging direction matches the second merging direction so that the first leader vehicle system merges with the second leader vehicle system to form the first group.
    Type: Grant
    Filed: January 10, 2012
    Date of Patent: May 13, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Junichiro Fukuyama
  • Patent number: 8665789
    Abstract: Network architecture configured for open communication between a plurality of sub-networks. Each of the plurality of sub-networks has a different routable network addressing scheme. The architecture includes at least one broker node adapted to communicate using at least two different routable network addressing schemes. The broker node comprises an identification management module configured to collect peer-application addresses for nodes currently accessing a specific application, the peer-application addresses being associated with a specific application, an address resolution module configured to map each of the peer-application addresses to a sub-network specific routable network address and a network coordination module configured to monitor and coordinate sub-network communication capabilities between the broker node and at least one other broker node and elect a primary broker node for each sub-network which the broker node and at least one other broker node is capable of communication.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: March 4, 2014
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A.
    Inventors: Wai Chen, John Lee, Ratul Guha, Yibei Ling, Taek-Jin Kwon, Rama Vuyyuru, Junichiro Fukuyama
  • Publication number: 20130179056
    Abstract: A first leader vehicle system and method for forming a first group including the first leader vehicle system is disclosed. The first leader vehicle system comprises a requesting module, a determination module and an aggregation module. The requesting module identifies a second leader vehicle system within a transmission range. The second leader vehicle system is in a second group. The requesting module chooses a first merging direction and receives a second merging direction chosen by the second leader vehicle system. The determination module determines that the first merging direction matches the second merging direction. The aggregation module aggregates probe vehicle data from the second leader vehicle system based at least in part on the determination that the first merging direction matches the second merging direction so that the first leader vehicle system merges with the second leader vehicle system to form the first group.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 11, 2013
    Applicants: TOYOTA INFOTECHNOLOGY CENTER CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Junichiro Fukuyama
  • Publication number: 20130094509
    Abstract: An open communication method between at least two sub-networks using a broker node. Each of the sub-networks has a different routable network addressing scheme. The method comprises receiving a packet for a specific application, the packet includes an application identifier, determining if the packet is to be relayed to another of the at least two sub-networks based upon the application identifier, determining if a node receiving the packet is a broker node, relaying the packet to a broker node if not a broker node and forwarding, by the broker node, the packet to at least one node in another of the at least two sub-networks. The node generating the packet communicates using a first of the at least two sub-networks. A broker node communicates using at least two of the at least two sub-networks via a corresponding routable network addressing schemes for each of the sub-networks.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 18, 2013
    Applicants: TOYOTA INFOTECHNOLOGY CENTER USA, INC., TELCORDIA TECHNOLOGIES, INC.
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Publication number: 20120327840
    Abstract: A multiple hop communications method among a plurality of moving vehicles. Each moving vehicles has a plurality of unidirectional radio. The method comprises receiving an incoming packet at one of the plurality of unidirectional radios, determining if there is an active link between each of the plurality of unidirectional radios and an unidirectional radio of a neighbor vehicle, relaying the incoming packet to the plurality of unidirectional radios having an active link and transmitting the incoming packet as an outgoing packet from at least one of the plurality of unidirectional radios. If more than one packet is received, the packets can be encoded using group coding before send the packets out as an outgoing packet.
    Type: Application
    Filed: June 23, 2011
    Publication date: December 27, 2012
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Wai Chen, Ratul Guha, John Lee, Junichiro Fukuyama, Rama Vuyyuru
  • Publication number: 20120263102
    Abstract: Network architecture configured for open communication between a plurality of sub-networks. Each of the plurality of sub-networks has a different routable network addressing scheme. The architecture includes at least one broker node adapted to communicate using at least two different routable network addressing schemes. The broker node comprises an identification management module configured to collect peer-application addresses for nodes currently accessing a specific application, the peer-application addresses being associated with a specific application, an address resolution module configured to map each of the peer-application addresses to a sub-network specific routable network address and a network coordination module configured to monitor and coordinate sub-network communication capabilities between the broker node and at least one other broker node and elect a primary broker node for each sub-network which the broker node and at least one other broker node is capable of communication.
    Type: Application
    Filed: April 13, 2011
    Publication date: October 18, 2012
    Applicants: TOYOTA INFOTECHNOLOGY CENTER, U.S.A., INC., TELCORDIA TECHNOLOGIES, INC.
    Inventors: Wai Chen, John Lee, Ratul Guha, Yibei Ling, Taek-Jin Kwon, Rama Vuyyuru, Junichiro Fukuyama
  • Publication number: 20120197618
    Abstract: A system and method for vehicular networking and applications visualization comprises selecting a simulation area, converting the selected simulation area to graph representation, eliminating streets outside the simulation area, generating, using the graph representation, vehicles and random vehicle traffic in the simulation area, calculating vehicle movement in coordinates, transforming the calculated coordinates into a format compatible with a general purpose communication networking simulation tool, simulating, using the transformed calculated coordinates and the general purpose communication networking simulation tool, an application, and performing visualization of the simulation. The application can be local traffic information, the vehicle movement and communication among the vehicles. The simulation can be at least 2000 seconds and communication can be disruption tolerant.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 2, 2012
    Applicants: Toyota InfoTechnology Center, U.S.A., Inc., Telcordia Technologies, Inc.
    Inventors: Marcus Pang, Wai Chen, Jasmine Chennikara-Varghese, Yibei Ling, Rama Vuyyuru, Junichiro Fukuyama
  • Publication number: 20120070804
    Abstract: A method, simulator and program for simulating vehicular movement based upon user input parameters related to simulation topology and simulation vehicles including, but not limited to linear vehicular density. The simulator generates the simulation topology having a simulation area using the user input parameters, places a plurality of simulation vehicles within the simulation area at an initial placement using at least two input parameters related to simulation vehicle and the generated simulation topology; and determines movement of the plurality of simulation vehicles starting with the initial placement using a plurality of movement models. Each of the plurality of simulation vehicles has mobility characteristics generated using the plurality of movement models. When vehicle moves outside the simulation area, the vehicle re-emerges at a location within the simulation area. The vehicle re-emerges with new movement characteristics.
    Type: Application
    Filed: September 22, 2010
    Publication date: March 22, 2012
    Applicants: TOYOTA INFOTECHNOLOGY CENTER, U.S.A., INC., TELCORDIA TECHNOLOGIES, INC.
    Inventors: Marcus Pang, Wai Chen, Jasmine Chennikara-Varghese, Ratul Guha, John Lee, Rama Vuyyuru, Junichiro Fukuyama
  • Patent number: 7885285
    Abstract: A probabilistic method of determining a second vehicle in the VANET to which a packet is to be forwarded from a first vehicle is provided. The method includes determining the second vehicle to forward the packet from the first vehicle based on pre-calculated expected latency data corresponding to the second vehicle, and forwarding the packet from the first vehicle to the determined second vehicle. The expected latency data is indicative of the latency expected for communication of the packet from the first vehicle to the destination if the packet is forwarded from the first vehicle to the second vehicle, and is calculated in advance of the step of the determining the second vehicle to forward the packet. The second vehicle to forward the packet may also be determined based on pre-calculated communication probability data corresponding to the second vehicle in addition to the pre-calculated expected latency.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: February 8, 2011
    Assignee: Toyota Infotechnology Center Co., Ltd.
    Inventor: Junichiro Fukuyama
  • Publication number: 20100080168
    Abstract: A probabilistic method of determining a second vehicle in the VANET to which a packet is to be forwarded from a first vehicle is provided. The method includes determining the second vehicle to forward the packet from the first vehicle based on pre-calculated expected latency data corresponding to the second vehicle, and forwarding the packet from the first vehicle to the determined second vehicle. The expected latency data is indicative of the latency expected for communication of the packet from the first vehicle to the destination if the packet is forwarded from the first vehicle to the second vehicle, and is calculated in advance of the step of the determining the second vehicle to forward the packet. The second vehicle to forward the packet may also be determined based on pre-calculated communication probability data corresponding to the second vehicle in addition to the pre-calculated expected latency.
    Type: Application
    Filed: September 29, 2008
    Publication date: April 1, 2010
    Applicant: Toyota InfoTechnology Center Co., Ltd.
    Inventor: Junichiro Fukuyama