Patents by Inventor Hee-jin Jang
Hee-jin Jang 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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Patent number: 10961337Abstract: Provided are a method of preparing a dicyclopentadiene-based resin and a dicyclopentadiene-based resin. According to the present invention, provided is a dicyclopentadiene-based resin including an aromatic olefin-based comonomer as a comonomer to have improved quality including high compatibility, a favorable color characteristic, and a low softening point, and also having improved adhesive strength due to a low molecular weight and a narrow molecular weight distribution.Type: GrantFiled: December 11, 2017Date of Patent: March 30, 2021Assignee: HANWHA CHEMICAL CORPORATIONInventors: Hyeon Uk Kang, Pil Je Seong, Kyong Jun Yoon, Hee Jin Jang
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Publication number: 20190309114Abstract: Provided are a method of preparing a dicyclopentadiene-based resin and a dicyclopentadiene-based resin. According to the present invention, provided is a dicyclopentadiene-based resin including an aromatic olefin-based comonomer as a comonomer to have improved quality including high compatibility, a favorable color characteristic, and a low softening point, and also having improved adhesive strength due to a low molecular weight and a narrow molecular weight distribution.Type: ApplicationFiled: December 11, 2017Publication date: October 10, 2019Inventors: Hyeon Uk KANG, Pil Je SEONG, Kyong Jun YOON, Hee Jin JANG
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Patent number: 9901899Abstract: A carbon dioxide adsorbent may include a double salt having a first metal salt and a second metal salt. The first metal salt may include a first metal selected from Ca, Sr, and Ba. The second metal salt may include a second metal selected from Li, Na, K, Rb, and Cs. The present disclosure also discloses a process for preparing the carbon dioxide adsorbent and a method of separating carbon dioxide using the same.Type: GrantFiled: February 12, 2015Date of Patent: February 27, 2018Assignees: Samsung Electronics Co., LTD., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Hyuk Jae Kwon, Soon Chul Kwon, Hyun Chul Lee, Ki-bong Lee, Chan Hyun Lee, Hee Jin Jang
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Publication number: 20170326526Abstract: A carbon dioxide adsorbent may include a double salt having a first metal salt and a second metal salt. The first metal salt may include a first metal selected from Ca, Sr, and Ba. The second metal salt may include a second metal selected from Li, Na, K, Rb, and Cs. The present disclosure also discloses a process for preparing the carbon dioxide adsorbent and a method of separating carbon dioxide using the same.Type: ApplicationFiled: February 12, 2015Publication date: November 16, 2017Applicant: Korea University Research and Business FoundationInventors: Hyuk Jae KWON, Soon Chul KWON, Hyun Chul LEE, Ki Bong LEE, Chan Hyun LEE, Hee Jin JANG
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Publication number: 20150306564Abstract: A carbon dioxide adsorbent may include a double salt having a first metal salt and a second metal salt. The first metal salt may include a first metal selected from Ca, Sr, and Ba. The second metal salt may include a second metal selected from Li, Na, K, Rb, and Cs. The present disclosure also discloses a process for preparing the carbon dioxide adsorbent and a method of separating carbon dioxide using the same.Type: ApplicationFiled: February 12, 2015Publication date: October 29, 2015Applicant: Korea University Research and Business FoundationInventors: Hyuk Jae KWON, Soon Chul KWON, Hyun Chul LEE, Ki Bong LEE, Chan Hyun LEE, Hee Jin JANG
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Patent number: 9008668Abstract: A service handover control apparatus and a method using the apparatus are provided. The service handover control apparatus includes a service handover management unit collecting information associated with a transmitting terminal and a wireless access network, which operate based on an Internet Protocol multimedia subsystem (IMS), and outputting a control signal which controls service handovers of the transmitting terminal and the receiving terminal based on the collected information; and a service handover controller providing the service handover management unit with the information associated with the transmitting terminal and the receiving terminal, and controlling the service handovers of the transmitting terminal and the receiving terminal based on the control signal.Type: GrantFiled: November 13, 2007Date of Patent: April 14, 2015Assignees: Samsung Electronics Co., Ltd., Fraunhofer Gesellschaft zur Foerderung der angewandten Forschung e.V.Inventors: Su-won Lee, Xiaoyu Liu, John Williams Floroiu, Eun Sun Jung, Hee Jin Jang, Marius Corici, Byoung Joon Lee
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Patent number: 8677012Abstract: A method of transmitting/receiving a frame between a portable terminal and a base station in a wireless broadband Internet network are provided. More particularly, a method of transmitting/receiving frames can include activating a session between the portable terminal and the base station, removing at least one header information field included in an Internet protocol (IP) datagram after activating the session, adding a network header which sets a predetermined transport connection identifier (TCID) to the IP datagram, generating the frame, and transmitting the generated frame via the activated session. Preferably, the frame is generated in any one of the portable terminal and the base station, and transmitted to the other one of the portable terminal and the base station.Type: GrantFiled: June 28, 2007Date of Patent: March 18, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Chee Ha Kim, Hee-Jin Jang, Byoung-Joon Lee, Jong Ho Bang, Su Won Lee
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Patent number: 8619729Abstract: The present invention relates to a wireless network, and more particularly, a method (*“and system”?*) which a mobile station discovers a neighbor network in an Internet protocol based wireless network, a network management server for enabling the method, and a method of operating the network management server.Type: GrantFiled: June 5, 2006Date of Patent: December 31, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Yegin Alper, Youn-Hee Han, JinHyeock Choi, Hee-Jin Jang, Xiaoyu Liu
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Patent number: 8588183Abstract: An access router including a module buffering first data to be transmitted to a first mobile station, and transmitting the first data to a second access router when the first mobile station moves to the second access router. Methods of processing a handover by the access router during a handover of the mobile station are also described.Type: GrantFiled: November 6, 2007Date of Patent: November 19, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hee Jin Jang, Boung-Joon Lee, Su Won Lee
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Patent number: 8547936Abstract: A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.Type: GrantFiled: January 6, 2012Date of Patent: October 1, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Chee Ha Kim, Hee-Jin Jang, Boung Jun Lee, Jong Ho Bang, Su Won Lee
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Patent number: 8422458Abstract: A handoff apparatus and method in FMIPv6 for seamless TCP packet transmissions. The handoff method includes steps of intercepting by a previous access router certain TCP packets sent from a correspondent node to a previous temporary address of a mobile node; and creating a TCP ACK by the previous access router in response to the certain TCP packets and sending by the previous access router the created TCP ACK to the correspondent node every time the certain TCP packets are forwarded to a new access router through a bi-directional tunnel. The handoff method has an advantage in that the packet transmission rate can be secured at the same level as the mobile node stays still during the performance of the handoff of the mobile node since the previous access router instead of the mobile node creates and sends the TCP ACK to the correspondent node during the performance of the handoff of the mobile node.Type: GrantFiled: November 18, 2010Date of Patent: April 16, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-jin Jang, Xiaoyu Liu, Youn-hee Han
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Patent number: 8412198Abstract: An apparatus and method for providing a seamless communication service in a wireless communication system. The method includes transmitting a first message to a base station when an IP subnet has been changed due to movement of the portable terminal, the first message including a Medium Access Control (MAC) address of the portable terminal, receiving IP address information from the base station, which can be used in a new IP subnet, and configuring a new IP address based on the received IP address information.Type: GrantFiled: September 14, 2006Date of Patent: April 2, 2013Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-Jin Jang, Jae-Hoon Kim, Youn-Hee Han, Jong-Ho Bang
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Patent number: 8335505Abstract: A mobile station and method for neighbor discovery are provided. The mobile station comprises a mapping table storing a connection identifier (CID) prefix and a neighbor identifier, a controller generating a CID with respect to a message that will be transmitted by referring to the mapping table, and a message transmitter transmitting, by using the CID, the message to a base station connected to the mobile station.Type: GrantFiled: October 17, 2006Date of Patent: December 18, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Youn-Hee Han, Jin-Hyeock Choi, Hee-Jin Jang
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Patent number: 8275383Abstract: A method for ranging in a wireless communication system and a communication apparatus and/or system using the same are provided. A base station (BS) device includes a terminal grouping unit to group terminals associated with the BS device into a plurality of groups, a radio resource assignment unit to allocate a radio resource assigned to the BS device to each of the plurality of groups, a transmission unit to transmit information about a radio resource assigned to a first group of the plurality of groups to a terminal included in the first group, and a receiving unit to receive a ranging signal from the terminal using the radio resource assigned to the first group, wherein the terminal grouping unit assigns the terminal to be included in a second group of the plurality of groups where the ranging signal is not received by the receiving unit.Type: GrantFiled: November 4, 2008Date of Patent: September 25, 2012Assignees: Samsung Electronics Co., Ltd., Industry-Academic Cooperation Foundation, Sogang UniversityInventors: Hee Jin Jang, Su Won Lee, Daehyoung Hong, Bongjhin Shin
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Publication number: 20120113956Abstract: A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.Type: ApplicationFiled: January 6, 2012Publication date: May 10, 2012Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chee Ha KIM, Hee-Jin JANG, Boung Jun LEE, Jong Ho BANG, Su Won LEE
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Patent number: 8116279Abstract: A method of providing a handover service to a mobile communication terminal supporting multi-modal communications, and a mobile communication terminal for performing the method are provided. More particularly, a method of eliminating an interruption of a data transmission service occurring during a handover between different communication networks, and a terminal for performing the method are provided. A method of providing a handover service of a mobile communication terminal supporting multi-modal communications can include: transmitting and receiving data to/from a corresponding node via a first access network and a second access network while simultaneously maintaining an association with the first access network and the second access network, determining a point in time of completing a handover registration, and releasing an association with the first access network after the point in time of completing the handover registration.Type: GrantFiled: May 2, 2007Date of Patent: February 14, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Chee Ha Kim, Hee-Jin Jang, Boung Jun Lee, Jong Ho Bang, Su Won Lee
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Patent number: 8107417Abstract: A method and mobile terminal for allocating an Internet protocol (IP) address in a wireless network. A method of allocating an IP address in a wireless network which is applied to a system including a mobile terminal and an access router (AR) storing IP addresses, which are used on a connected link, in an address cache, managing the IP addresses, and performing a duplicate address detection (DAD) based on the IP addresses, the method including confirming whether a notification message, transmitted from the AR, is received, and automatically configuring an IP address and requesting the AR to perform the DAD with respect to the automatically configured IP address, when the notification message is received.Type: GrantFiled: July 19, 2007Date of Patent: January 31, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Jin-Hyeock Choi, Hee-Jin Jang
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Patent number: 8078179Abstract: A mobility supporting method and a mobility supporting system using the method are provided. The mobility supporting method includes a first access router for allocating a prefix to a mobile terminal, and registering the allocated prefix in an authentication server when the mobile terminal connects to the first access router. There is also the authentication server for verifying the mobile terminal based on the registered prefix, and reporting a result of the verifying of the mobile terminal to a second access router when the mobile terminal moves to connect to the second access router and the second access router for notifying the reported result of the verifying the mobile terminal to the first access router.Type: GrantFiled: July 27, 2007Date of Patent: December 13, 2011Assignee: Samsung Electronics, Co., Ltd.Inventors: Jin-Hyeock Choi, Hee-Jin Jang, Young Don Chung
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Patent number: 7953045Abstract: A control method for a mobile terminal which connects to a router linked to an external network through at least one interface, including receiving a router advertisement message from the router through a first interface, determining whether prefix information of the received router advertisement message is identical with prefix information of a preset internet protocol (IP) configuration reuse group including the first interface, and generating an IP configuration of the first interface when the two prefix information are identical. Accordingly, at the time of a vertical handover, continuity of the A/V session can be maintained without having to use mobile IP technology.Type: GrantFiled: September 14, 2005Date of Patent: May 31, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Youn-hee Han, Jung-ho Kim, Xiaoyu Liu, Jung-hoon Cheon, Hee-jin Jang
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Patent number: 7948947Abstract: A handoff apparatus and method in FMIPv6 for seamless TCP packet transmissions. The handoff method includes steps of intercepting by a previous access router certain TCP packets sent from a correspondent node to a previous temporary address of a mobile node; and creating a TCP ACK by the previous access router in response to the certain TCP packets and sending by the previous access router the created TCP ACK to the correspondent node every time the certain TCP packets are forwarded to a new access router through a bi-directional tunnel. The handoff method has an advantage in that the packet transmission rate can be secured at the same level as the mobile node stays still during the performance of the handoff of the mobile node since the previous access router instead of the mobile node creates and sends the TCP ACK to the correspondent node during the performance of the handoff of the mobile node.Type: GrantFiled: January 4, 2006Date of Patent: May 24, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Hee-jin Jang, Xiaoyu Liu, Youn-hee Han