Patents by Inventor Taek-Jin Kwon

Taek-Jin Kwon 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: 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
  • Patent number: 8995447
    Abstract: An on-demand method of routing data between a plurality of local peer groups (LPG) of plural moving nodes comprises transmitting a route request message from a source node, relaying the route request message to a native boundary node; forwarding the route request message to a foreign boundary node, determining if the destination node is within an LPG for the foreign boundary node; relaying the route request message to another boundary node if the destination node is not within the LPG, relaying the route request message to the destination node if the destination node is within the LPG, receiving the routing request message at the destination node, transmitting a routing response to the source node, relaying the routing response to the source node through a path discovered by the route request, receiving the routing response at the source node, and transmitting the data, upon receipt of the routing response.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: March 31, 2015
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Marcus Pang, Taek Jin Kwon, Ryokichi Onishi, Toshiro Hikita
  • Patent number: 8762518
    Abstract: A method for maintaining a local peer group (LPG) for supporting communications among vehicles. The LPG is formed from a plurality of vehicles. Each vehicle is equipped with a wireless communications device. One of the vehicles is selected as a group header node (GH). The method comprises receiving periodically a heartbeat packet from the GH, the heartbeat packet including a maximum hop count, and a heartbeat cycle, forwarding the heartbeat packet until the maximum hop count is reached after waiting for a first random relay delay, which is less than a maximum allowable adjustable value, replying to the heartbeat packet with a membership report packet, forwarding a membership report packet towards the GH, and adding a vehicle that submitted the membership report packet to a LPG membership as a member node of the LPG if the membership report packet is new or updating information for a member node.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: June 24, 2014
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center U.S.A., Inc.
    Inventors: Wai Chen, Taek-Jin Kwon, Ryokichi Onishi, 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: 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: 20130315099
    Abstract: A method and communication device for routing unicast and multicast messages. The method for routing a unicast message includes receiving a first control packet including routing parameters from a group header node, updating a routing table based upon the routing parameters, receiving a second control packet including additional routing parameters from a group node, updating the routing table based upon the additional routing parameters and generating a forwarding table from the routing table when both of the updated steps are completed. The unicast message is routed based upon the forwarding table. A method for routing a multicast message comprises receiving the multicast message, determining if a multicast group destination for the multicast message is in a multicast forwarding table (MFT), determining if the multicast message has been previously forwarded and forwarding the multicast message if the message was not previously forwarded and the multicast group destination is in the MFT.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 28, 2013
    Applicant: Telcordia Techmologies, Inc.
    Inventors: Wai Chen, Taek-Jin Kwon, Toshiro Hikita, Ryokichi Onishi, John Lee
  • Patent number: 8520673
    Abstract: A method and communication device for routing unicast and multicast messages. The method for routing a unicast message includes receiving a first control packet including routing parameters from a group header node, updating a routing table based upon the routing parameters, receiving a second control packet including additional routing parameters from a group node, updating the routing table based upon the additional routing parameters and generating a forwarding table from the routing table when both of the updated steps are completed. The unicast message is routed based upon the forwarding table. A method for routing a multicast message comprises receiving the multicast message, determining if a multicast group destination for the multicast message is in a multicast forwarding table (MFT), determining if the multicast message has been previously forwarded and forwarding the multicast message if the message was not previously forwarded and the multicast group destination is in the MFT.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: August 27, 2013
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Taek-Jin Kwon, Toshiro Hikita, Ryokichi Onishi, John Lee
  • Patent number: 8490175
    Abstract: A security method and system for Layer Independent Passive Clustering (LIPC) is presented. The inventive method and system maintains the states in the LIPC cluster formation protocol while adding a ‘Trusworthy’ event to each state and provides a methodology that depends on the state of the transmitting node to quantify Trustworthy and derive a Trust Confidence Value (TCV) to represent the level of confidence in quantifying ‘Trustworthy’. The invention dynamically computes a degree of trustworthiness for each participating network node and eliminates nodes from participating in the PC cluster formation protocol and packet forwarding if they do not meet established trust metrics. The security solution can also apply to PC-based Mobile Ad hoc Networks (MANETs). The novel system and method applies a multidimensional set of security algorithms to protect the LIPC cluster formation protocol from malicious attacks that compromise cluster formation and secure routing.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: July 16, 2013
    Assignee: Telcordia Technologies, Inc.
    Inventors: Melbourne Barton, Taek Jin Kwon
  • Publication number: 20130145461
    Abstract: A security method and system for Layer Independent Passive Clustering (LIPC) is presented. The inventive method and system maintains the states in the LIPC cluster formation protocol while adding a ‘Trusworthy’ event to each state and provides a methodology that depends on the state of the transmitting node to quantify Trustworthy and derive a Trust Confidence Value (TCV) to represent the level of confidence in quantifying ‘Trustworthy’. The invention dynamically computes a degree of trustworthiness for each participating network node and eliminates nodes from participating in the PC cluster formation protocol and packet forwarding if they do not meet established trust metrics. The security solution can also apply to PC-based Mobile Ad hoc Networks (MANETs). The novel system and method applies a multidimensional set of security algorithms to protect the LIPC cluster formation protocol from malicious attacks that compromise cluster formation and secure routing.
    Type: Application
    Filed: December 6, 2011
    Publication date: June 6, 2013
    Applicant: TELCORDIA TECHNOLOGIES, INC.
    Inventors: Melbourne Barton, Taek Jin Kwon
  • Patent number: 8351417
    Abstract: The present invention provides methods for efficient control message distribution in a VANET. Efficient flooding mechanisms are provided to fulfill the objective of flooding (delivering a message to every connected node) with a limited number of re-broadcasting by selected key nodes. A suppression-based efficient flooding mechanism utilizes a Light Suppression (LS) technique to reduce the number of flooding relays by giving up the broadcasting of a flooding message when a node observes downstream relay of the same flooding message. Additionally, a relay-node based efficient flooding mechanism selects Relay Nodes (RN) to form an efficient flooding tree for control message delivery. RNs are nodes that relay at least one control message, for instance a Membership Report (MR) to the upstream node in “k” previous control message cycles The upstream node may be the group header (GH) for the LPG.
    Type: Grant
    Filed: May 14, 2008
    Date of Patent: January 8, 2013
    Assignees: Telcordia Technologies, Inc., Toyota InfoTechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Taek Jin Kwon, John Lee, Ryokichi Onishi, Toshiro Hikita
  • 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
  • Patent number: 8274910
    Abstract: A method and system for determining a size of a local peer group (LPG) network in a dynamic roadway (mobile) environment is provided. In one embodiment, the method comprises measuring a roundtrip time between a first node and a second node, and utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table. In another embodiment, the method comprises determining when the roundtrip time exceeds a time interval of the heartbeat signal, and when the roundtrip time exceeds the time interval of the heartbeat signal adjusting the size of the local peer group network.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: September 25, 2012
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A, Inc.
    Inventors: Wai Chen, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
  • Publication number: 20120201167
    Abstract: An on-demand method of routing data between a plurality of local peer groups (LPG) of plural moving nodes comprises transmitting a route request message from a source node, relaying the route request message to a native boundary node; forwarding the route request message to a foreign boundary node, determining if the destination node is within an LPG for the foreign boundary node; relaying the route request message to another boundary node if the destination node is not within the LPG, relaying the route request message to the destination node if the destination node is within the LPG, receiving the routing request message at the destination node, transmitting a routing response to the source node, relaying the routing response to the source node through a path discovered by the route request, receiving the routing response at the source node, and transmitting the data, upon receipt of the routing response.
    Type: Application
    Filed: March 13, 2012
    Publication date: August 9, 2012
    Applicants: TOYOTA INFOTECHNOLOGY CENTER USA, INC., TELCORDIA TECHNOLOGIES, INC.
    Inventors: Wai Chen, Marcus Pang, Taek Jin Kwon, Ryokichi Onishi, Toshiro Hikita
  • Patent number: 8160078
    Abstract: An on-demand method of routing data between a plurality of local peer groups (LPG). Each LPG includes a plurality of moving nodes. The method comprises transmitting a route request message from a source node, relaying the route request message to a native boundary node; forwarding the route request message to a foreign boundary node, determining if the destination node is within an LPG for the foreign boundary node; relaying the route request message to another boundary node if the destination node is not within the LPG, relaying the route request message to the destination node if the destination node is within the LPG, receiving the routing request message at the destination node, transmitting a routing response to the source node, relaying the routing response to the source node through a path discovered by the route request, receiving the routing response at the source node, and transmitting the data, upon receipt of the routing response.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: April 17, 2012
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Marcus Pang, Taek Jin Kwon, Ryokichi Onishi, Toshiro Hikita
  • Patent number: 8106792
    Abstract: A method of controlling a wireless communication device that is installed in a moving vehicle. The method comprises receiving roadway topology information and vehicle traffic pattern information, receiving vehicle and wireless communication device performance information from a plurality of other moving vehicles, determining current position information for the moving vehicle; determining a first set of metrics for a performance of the wireless communication device installed in the moving vehicle, estimating at least one second metric related to the performance of the wireless communication device or an ad-hoc network which includes each wireless communication device and changing an operation or routing parameter for the wireless communication device based upon the estimation. The second metric is based upon at least a sub-set of the first set of metrics, the received information and the determined current position information for the moving vehicle.
    Type: Grant
    Filed: July 10, 2009
    Date of Patent: January 31, 2012
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Jasmine Chennikara-Varghese, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
  • Publication number: 20110182484
    Abstract: A mobile terminal and a method of forming a human network using the same are provided. The method for forming a human network includes selecting a person of interest from an image; selecting a relay person from the first stored image to which information about the selected person of interest is relayed through facial recognition; and acquiring the personal information for the selected person of interest from a mobile terminal of the selected relay person.
    Type: Application
    Filed: August 25, 2010
    Publication date: July 28, 2011
    Applicant: Pantech Co., Ltd.
    Inventors: Hyeong-Baek JEON, Taek-Jin Kwon, Ill-Kwon Park, Jae-Woon Park, Yong-ho Lee, Ki-Hyun Jung, Su-Kyoung Jung, Sun-Bong Hong
  • Publication number: 20110134762
    Abstract: A method and system for determining a size of a local peer group (LPG) network in a dynamic roadway (mobile) environment is provided. In one embodiment, the method comprises measuring a roundtrip time between a first node and a second node, and utilizing the measured roundtrip time to select the size of the local peer group network from a lookup table. In another embodiment, the method comprises determining when the roundtrip time exceeds a time interval of the heartbeat signal, and when the roundtrip time exceeds the time interval of the heartbeat signal adjusting the size of the local peer group network.
    Type: Application
    Filed: December 4, 2009
    Publication date: June 9, 2011
    Applicants: TELCORDIA TECHNOLOGIES, INC., TOYOTA INFOTECHNOLOGY CENTER U.S.A., INC.
    Inventors: Wai Chen, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
  • Publication number: 20110010446
    Abstract: A method for maintaining a local peer group (LPG) for supporting communications among vehicles. The LPG is formed from a plurality of vehicles. Each vehicle is equipped with a wireless communications device. One of the vehicles is selected as a group header node (GH). The method comprises receiving periodically a heartbeat packet from the GH, the heartbeat packet including a maximum hop count, and a heartbeat cycle, forwarding the heartbeat packet until the maximum hop count is reached after waiting for a first random relay delay, which is less than a maximum allowable adjustable value, replying to the heartbeat packet with a membership report packet, forwarding a membership report packet towards the GH, and adding a vehicle that submitted the membership report packet to a LPG membership as a member node of the LPG if the membership report packet is new or updating information for a member node.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Applicants: TELCORDIA TECHNOLOGIES, INC., TOYOTA INFOTECHNOLOGY CENTER U.S.A., INC.
    Inventors: Wai Chen, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
  • Publication number: 20110006913
    Abstract: A method of controlling a wireless communication device that is installed in a moving vehicle. The method comprises receiving roadway topology information and vehicle traffic pattern information, receiving vehicle and wireless communication device performance information from a plurality of other moving vehicles, determining current position information for the moving vehicle; determining a first set of metrics for a performance of the wireless communication device installed in the moving vehicle, estimating at least one second metric related to the performance of the wireless communication device or an ad-hoc network which includes each wireless communication device and changing an operation or routing parameter for the wireless communication device based upon the estimation. The second metric is based upon at least a sub-set of the first set of metrics, the received information and the determined current position information for the moving vehicle.
    Type: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Applicants: TELCORDIA TECHNOLOGIES, INC., TOYOTA INFOTECHNOLOGY CENTER U.S.A., INC.
    Inventors: Wai Chen, Jasmine Chennikara-Varghese, Taek-Jin Kwon, Ryokichi Onishi, Rama Vuyyuru
  • Patent number: 7848278
    Abstract: An ad-hoc wireless network with a roadside network unit (RSU) and a local peer group (LPG). The LPG is formed from a plurality of moving vehicles. The LPG includes a group header node (GH) for managing the LPG. The GH is elected from one of the moving vehicles. The LPG further includes group nodes (GN) designated from the remaining moving vehicles in a given area. Each of the moving vehicles, whether the GH or the GN, communicates with other using routing paths created based upon a first control packet broadcast from the GH and a second control packet broadcast from each of the GN. Each moving vehicle communicates with the RSU using a routing paths created based upon a beacon broadcast by the RSU and a reply signal from each of the moving vehicles. The RSU can also be a member of the LPG and act as GN or GH.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: December 7, 2010
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Wai Chen, Marcus Pang, Jasmine Chennikara-Varghese, John Lee, Toshiro Hikita, Ryokichi Onishi, Taek-Jin Kwon