Patents by Inventor Keun-jae Lee

Keun-jae Lee 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: 12238903
    Abstract: A water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: February 25, 2025
    Assignee: DONG YANG PISTON CO., LTD.
    Inventors: Kwan Ho Ryu, Jeong Keun Lee, Min Woo Lee, Ju Hyun Sun, Tae Keun Park, Kang Wook Park, Lee Cheol Ji, Hyeok Chul Yang, Tae Heon Kim, Keun Jae Lee
  • Publication number: 20240121924
    Abstract: A water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.
    Type: Application
    Filed: August 4, 2022
    Publication date: April 11, 2024
    Inventors: Kwan Ho RYU, Jeong Keun LEE, Min Woo LEE, Ju Hyun SUN, Tae Keun PARK, Kang Wook PARK, Lee Cheol JI, Hyeok Chul YANG, Tae Heon KIM, Keun Jae LEE
  • Publication number: 20110145374
    Abstract: A software system capable of enabling efficient communication between an application and an operating environment in a heterogeneous network is provided. A distributed processing system adopting the software system may obtain optimized latency during a network communication between distributed software modules.
    Type: Application
    Filed: November 4, 2010
    Publication date: June 16, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Keun-Jae LEE
  • Patent number: 7881200
    Abstract: A method of controlling a transmission rate and a communication device using the same are disclosed. A method of controlling a transmission rate includes changing a path for packet transmission/reception from a first path to a second path, setting a congestion window and a slow-start threshold to be used in the second path to a congestion window and a slow-start threshold used in the first path, and adapting the congestion window and the slow-start threshold to be used in the second path according to a packet loss generated in the second path.
    Type: Grant
    Filed: September 22, 2006
    Date of Patent: February 1, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-jae Lee, Sang-su Nam, Byung-in Mun
  • Patent number: 7826432
    Abstract: An apparatus and method for routing on a mobile ad-hoc network are provided. The apparatus and method allow each node in a network to: measure a packet transmission rate to a neighboring node using a signal-to-noise ratio (SNR); measure variation in the number of nodes due to their insertion or deletion; distribute relative packet transmission time relative to the SNR, which is measured using the packet transmission rate; and determine a routing path using the stored relative packet transmission time relative to the SNR. The apparatus includes a transceiver that receives a reply packet from a neighboring node, a measuring unit that uses the reply packet to measure movement of the neighboring node and a relative packet transmission time thereto, and a routing path determination unit that uses the relative packet transmission time to determine a routing path in the network.
    Type: Grant
    Filed: December 28, 2005
    Date of Patent: November 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-jae Lee, Min-soo Kim, Song-yean Cho
  • Publication number: 20080076423
    Abstract: A handover method and apparatus are provided. The handover method of a mobile station (MS) moving from a network of a first access point (AP) to a network of a second AP includes scanning the second AP through a specific channel according to a handover history registered in the MS; and associating the MS with the second AP according to a result obtained from the scanning. Accordingly, a time delay occurring in the process of scanning an AP is minimized, thereby avoiding data loss of a service requiring real-time based data transmission.
    Type: Application
    Filed: May 2, 2007
    Publication date: March 27, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun-jae LEE, Sang-su NAM
  • Patent number: 7349370
    Abstract: A method and network apparatus for setting a routing path and managing a neighbor node in mobile ad hoc, network environment are provided. The method for setting a routing path in mobile ad hoc network environment includes receiving a packet periodically broadcast from a neighbor node, measuring the quality of a link with the neighbor node through the received packet, calculating routing paths using the routing information of the neighbor node when the measured link quality is higher than a first threshold value, and selecting the shortest routing path to a destination node, among the calculated routing paths, as a path for packet transmission.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: March 25, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Keun-jae Lee, Song-yean Cho, Byung-in Mun
  • Publication number: 20070070892
    Abstract: A method of controlling a transmission rate and a communication device using the same are disclosed. A method of controlling a transmission rate includes changing a path for packet transmission/reception from a first path to a second path, setting a congestion window and a slow-start threshold to be used in the second path to a congestion window and a slow-start threshold used in the first path, and adapting the congestion window and the slow-start threshold to be used in the second path according to a packet loss generated in the second path.
    Type: Application
    Filed: September 22, 2006
    Publication date: March 29, 2007
    Inventors: Keun-jae Lee, Sang-su Nam, Byung-in Mun
  • Publication number: 20060146720
    Abstract: An apparatus and method for routing on a mobile ad-hoc network are provided. The apparatus and method allow each node in a network to: measure a packet transmission rate to a neighboring node using a signal-to-noise ratio (SNR); measure variation in the number of nodes due to their insertion or deletion; distribute relative packet transmission time relative to the SNR, which is measured using the packet transmission rate; and determine a routing path using the stored relative packet transmission time relative to the SNR. The apparatus includes a transceiver that receives a reply packet from a neighboring node, a measuring unit that uses the reply packet to measure movement of the neighboring node and a relative packet transmission time thereto, and a routing path determination unit that uses the relative packet transmission time to determine a routing path in the network.
    Type: Application
    Filed: December 28, 2005
    Publication date: July 6, 2006
    Inventors: Keun-jae Lee, Min-soo Kim, Song-yean Cho
  • Publication number: 20060126514
    Abstract: A method and network apparatus for setting a routing path and managing a neighbor node in mobile ad hoc, network environment are provided. The method for setting a routing path in mobile ad hoc network environment includes receiving a packet periodically broadcast from a neighbor node, measuring the quality of a link with the neighbor node through the received packet, calculating routing paths using the routing information of the neighbor node when the measured link quality is higher than a first threshold value, and selecting the shortest routing path to a destination node, among the calculated routing paths, as a path for packet transmission.
    Type: Application
    Filed: December 2, 2005
    Publication date: June 15, 2006
    Inventors: Keun-jae Lee, Song-yean Cho, Byung-in Mun