Patents by Inventor Sook Jin Lee

Sook Jin 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).

  • Publication number: 20110074634
    Abstract: A wireless positioning method of a receiver is provided. Signals are received from a plurality of transmitters, propagation taps of the plurality of transmitters received from the plurality of transmitters are determined, respectively, the distance between the receiver and each of the transmitters is calculated, respectively, the distances are corrected by using propagation delay taps of the respective transmitters to determine final distances between the receiver and each of the transmitters, and an area, in which circles away by the final distances between the receiver and each of the transmitters on the basis of the center of each of the transmitters overlap with each other, is estimated as the location of the receiver. Thus, an error of wireless positioning according to a propagation environment can be reduced.
    Type: Application
    Filed: September 30, 2010
    Publication date: March 31, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Geon Min Yeo, Byung-Han Ryu, Hyeong Jun Park, Jisoo Park, Sook Jin Lee
  • Patent number: 7904070
    Abstract: The present invention relates to a method for searching and releasing an abnormal subscriber station in a wireless portable Internet system, and an apparatus using the same. The apparatus searches for an abnormal group including abnormal subscriber stations based on a ranging code provided in a periodic ranging process, and searches for an abnormal subscriber station by transmitting a connection maintenance message to subscriber stations included in the abnormal group so as to check an operation status of the respective subscriber stations. In addition, the apparatus releases a connection of an abnormal subscriber station. Therefore, waste of radio resources allocated to the abnormal subscriber station can be prevented, thereby achieving efficient resource management. Further, a secondary search process is performed only for subscriber stations included in an abnormal group, thereby preventing a system load from occurring when searching for an abnormal subscriber station.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: March 8, 2011
    Assignees: Samsung Electronics Co., Ltd., Electronics and Telecommunications Research Institute, Hanaro Telecom, Inc., SK Telecom Co., Ltd., KT Corporation
    Inventors: Sook-Jin Lee, Sung-Cheol Chang, Eun-Kyung Kim, Kyung-Soo Kim
  • Publication number: 20110053616
    Abstract: Provided is a paging method in a broadband wireless communication system. In order to provide a paging service to a terminal in a wireless communication system in which a macrocell base station and a femtocell base station coexist, the femtocell base station receives a deregistration request message from the terminal, and checks whether the femtocell base station can provide a paging service to the terminal. When failing to provide a paging service to the terminal, the femtocell base station receives paging service information from a paging controller, includes paging service information in a deregistration confirmation message, and transmits it to the terminal, and the macrocell base station provides a paging service to the terminal.
    Type: Application
    Filed: June 22, 2010
    Publication date: March 3, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Namsuk LEE, Sook Jin Lee
  • Publication number: 20110051686
    Abstract: A method of performing a handover procedure of a handover performing apparatus in a wireless communication system in which a macro base station and a femto base station coexist is provided. The method of performing the handover procedure of the handover performing apparatus includes detecting an uplink signal transmitted from a terminal to the macro base station, sending a report message including information about the uplink signal to the macro base station, and performing the handover procedure with the terminal when the macro base station triggers handover based on the report message.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 3, 2011
    Applicants: SAMSUNG ELECTRONICS CO. LTD., ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Sook Jin LEE, Yong Seouk CHOI, Namsuk LEE, Nak Woon SUNG
  • Publication number: 20110053617
    Abstract: In order for a femto cell base station located within an area of a macro cell base station to provide a paging service to a terminal, the femto cell base station receives paging information from the macro cell base station having the same paging group ID as that of the femto cell base station. Then, common paging area information including paging information is transmitted to the terminal, and when a paging message is received from a paging controller, the received paging message is transmitted based on the common paging area information to the terminal, thereby providing a paging service to the terminal.
    Type: Application
    Filed: August 25, 2010
    Publication date: March 3, 2011
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Namsuk Lee, Sook Jin Lee
  • Publication number: 20110034195
    Abstract: A base station generates a ranging bitmap for indicating whether a ranging code is received through a corresponding ranging channel for each ranging channel, and transmits it to terminals. The terminals check whether the ranging code is successfully transmitted through the ranging bitmap provided by the base station and ranging code identity information included in a ranging response message.
    Type: Application
    Filed: June 23, 2010
    Publication date: February 10, 2011
    Applicant: ELECTRONIC AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Namsuk LEE, Sook Jin Lee
  • Publication number: 20110025942
    Abstract: A liquid crystal display device includes a support main having a rectangular frame shape, a reflection plate in the support main, a light guide plate over the reflection plate, a light-emitting diode (LED) assembly including LEDs arranged along a light-incident surface of the light guide plate and a metal core printed circuit board (MCPCB) on which the LEDs are mounted, a thermal conductive means contacting the MCPCB and having a thermal conductivity within a range of 1.5 to 3 W/m·K, a plurality of optical sheets over the light guide plate, a liquid crystal panel over the plurality of optical sheets, a cover bottom at a rear surface of the reflection plate and having a bottom wall and at least one side wall perpendicular to the bottom wall, wherein heats are conducted from the thermal conductive means to the at least one side wall, and a top cover covering edges of a front surface of the liquid crystal and combined with the support main and the cover bottom.
    Type: Application
    Filed: December 11, 2009
    Publication date: February 3, 2011
    Inventor: Sook-Jin LEE
  • Publication number: 20110029306
    Abstract: An audio discriminating device includes a plurality of audio discriminators for discriminating an input audio signal as a speech signal or a non-speech signal by using at least one feature parameter, and determines whether to drive the audio discriminator connected next to the corresponding audio discriminator according to the audio discriminator's audio signal discriminating result.
    Type: Application
    Filed: June 22, 2010
    Publication date: February 3, 2011
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Manho PARK, Sook Jin Lee, Jee Hwan Ahn
  • Publication number: 20100254330
    Abstract: A signal receiving method includes allocating a first uplink channel, receiving first mode change data from a mobile station through the first uplink channel, releasing the allocation of the first uplink channel, allocating a second uplink channel for desired mode feedback at predetermined intervals, and receiving first feedback data from the mobile station through the second uplink channel. Therefore, when a mobile station tries to change a mode to another mode, it can perform the mode change with a minimum delay and without a wasteful use of resources.
    Type: Application
    Filed: August 20, 2008
    Publication date: October 7, 2010
    Inventors: Nam Suk Lee, Yong Seouk Choi, Sook Jin Lee, Kyung Soo Kim
  • Publication number: 20100111045
    Abstract: A method for providing uplink service from a base station to a terminal includes: transmitting information on a TCP packet and a dedicated code to a terminal; receiving a code number from the terminal using the dedicated code; searching a requesting bandwidth for the code number and allocating resources to the terminal; and receiving the ACK packet for the TCP packet through the allocated resources from the terminal.
    Type: Application
    Filed: November 6, 2009
    Publication date: May 6, 2010
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Samsung Electronics Co. Ltd.
    Inventors: Juhee KIM, Eunkyung KIM, Sook Jin LEE, Kyung Soo KIM
  • Publication number: 20080198291
    Abstract: A liquid crystal display includes a cover bottom and a cover shield. The liquid crystal display includes a nut coupled to a bracket through a fastening bolt. An upper portion and a lower portion of the nut have different diameters.
    Type: Application
    Filed: December 28, 2007
    Publication date: August 21, 2008
    Inventor: Sook Jin Lee
  • Publication number: 20080186909
    Abstract: The present invention relates to a scheduling apparatus and a method thereof in an HPi system. A scheduling algorithm is applied appropriate to a characteristic of each multimedia service (e.g., real-time service, non real-time service, best-effort service, etc.) and a transmission order of the IP packets transmitted from a network is determined such that a transmit wait queue is generated. Radio resource allocation is performed in accordance with the order of the data items queued in the transmit wait queue, the size of transmittable data is determined such that a PDU is generated. In addition, frame data formed of bursts of PDUs is generated and transmitted to a physical layer. Therefore, a scheduling algorithm can be applied appropriate to characteristics of each multimedia service. In addition, packet scheduling is performed in two steps in order to schedule traffic corresponding to radio frames such that packets can be efficiently processed.
    Type: Application
    Filed: June 27, 2006
    Publication date: August 7, 2008
    Applicants: SAMSUNG ELECTRONICS CO., LTD., KT CORPORATION, SK TELECOM CO., LTD., KTFREETEL CO., LTD., HANARO TELECOM, INC.
    Inventors: Ju-Hee Kim, Sook-Jin Lee, Kyung-Soo Kim
  • Publication number: 20080130723
    Abstract: The present invention relates to a mobile communication system, and more particularly, to a repeater and a ranging method using the repeater. In the mobile communication system including the repeater, a ranging operation is performed so that data are transmitted to a base station regardless of whether a mobile terminal is within a repeater area. Accordingly, it is determined whether a ranging code received through a ranging flag is directly received from the mobile terminal or if it is received through the repeater. When the ranging code is transmitted to the base station through the repeater, the ranging operation of the mobile terminal is performed.
    Type: Application
    Filed: October 29, 2007
    Publication date: June 5, 2008
    Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sook-Jin LEE, Eun-Kyung KIM, Kyung-Soo KIM
  • Publication number: 20070195225
    Abstract: A liquid crystal display device includes a liquid crystal panel; a backlight unit to provide a light to the liquid crystal panel, the backlight unit includes an optical sheet and a light guide plate; and a main support to receive the liquid crystal panel and the backlight unit together, the main support having first and second movement preventing members to prevent shifting of the optical sheet and the light guide plate of the backlight unit in a direction on a plane, and a third movement preventing member to prevent shifting of the light guide plate of the backlight unit in a direction normal to the plane.
    Type: Application
    Filed: December 20, 2006
    Publication date: August 23, 2007
    Inventor: Sook Jin Lee
  • Publication number: 20070155378
    Abstract: The present invention relates to a method for searching and releasing an abnormal subscriber station in a wireless portable Internet system, and an apparatus using the same. The apparatus searches for an abnormal group including abnormal subscriber stations based on a ranging code provided in a periodic ranging process, and searches for an abnormal subscriber station by transmitting a connection maintenance message to subscriber stations included in the abnormal group so as to check an operation status of the respective subscriber stations. In addition, the apparatus releases a connection of an abnormal subscriber station. Therefore, waste of radio resources allocated to the abnormal subscriber station can be prevented, thereby achieving efficient resource management. Further, a secondary search process is performed only for subscriber stations included in an abnormal group, thereby preventing a system load from occurring when searching for an abnormal subscriber station.
    Type: Application
    Filed: December 11, 2006
    Publication date: July 5, 2007
    Applicants: SAMSUNG ELECTRONICS CO., LTD., Electronics and Telecommunications Research Institute, KT Corporation, SK TELECOM CO., LTD, HANARO TELECOM., INC.
    Inventors: Sook-Jin Lee, Sung-Cheol Chang, Eun-Kyung Kim, Kyung-Soo Kim
  • Patent number: 7205909
    Abstract: A touch panel device includes a wiring terminal, a flexible printed circuit film connected to the wiring terminal, an adhesion part corresponding to a location where the flexible printed circuit film is connected to the wiring terminal, and an adhesion-reinforcing part adjacent to the adhesion part for strengthening an adhesive bonding strength of the adhesion part.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 17, 2007
    Assignee: LG.Philips LCD Co. Ltd.
    Inventor: Sook Jin Lee
  • Publication number: 20040041796
    Abstract: A touch panel device includes a wiring terminal, a flexible printed circuit film connected to the wiring terminal, an adhesion part corresponding to a location where the flexible printed circuit film is connected to the wiring terminal, and an adhesion-reinforcing part adjacent to the adhesion part for strengthening an adhesive bonding strength of the adhesion part.
    Type: Application
    Filed: June 27, 2003
    Publication date: March 4, 2004
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventor: Sook Jin Lee
  • Patent number: 5912884
    Abstract: The method for controlling an overload cell in a CDMA Mobile System comprises the steps of: a first step of receiving information on the overload cell from an overload detection module within a base station controller to retrieve the information on the load of neighboring cells and calculating the information on the total overload of neighboring cells; a second step of determining whether or not the total overload of the neighboring cell in a second hierarchy is greater than the maximum value of the neighboring cells; a third step of informing the overload detection module of the impossibility of control and terminating the procedure when it is determined that the total overload of the neighboring cell in the second hierarchy is not greater than the maximum value of the neighboring cells; a fourth step of retrieving a cell group as a third hierarchy with minimum load when at the second step it is determined that the total overload of the neighboring cell in the second hierarchy is greater than the maximum val
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: June 15, 1999
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo Goo Park, Sook Jin Lee, Jee Hwan Ahn
  • Patent number: 5835490
    Abstract: An improved overload control method using a call control process load ratio of a CDMA mobile system which is capable of which is capable of controlling a paging, a signal transmission, and an overload by a signal transmission and receiving by their threshold values by computing an average load ratio of a process and a variable permission ratio at the time of overload using the current CPU occupying ratio and a load ratio of a call control process, which includes the steps of a first step for judging as to whether an overload is loaded by calling an overload judgement procedure when a timer of an overload control process is driven in accordance with a generation of a periodical process of an operating system; a second step for controlling an overload by calling the overload control procedure when it is judged as an overload as a result of the first step; and a third step for releasing the overload state by calling an overload release procedure when the previous state is an overload state by checking the previo
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: November 10, 1998
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woo-Goo Park, Sook-Jin Lee, Jee-Hwan Ahn, Hun Lee