Patents by Inventor Ji-Chul Lee

Ji-Chul 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: 10247739
    Abstract: The present invention relates to a method for the immunological measurement using a hapten and an antibody binding to the hapten as a reference antibody, and a device for the immunological measurement using the reference antibody. According to the present invention, the method and the device for the immunological measurement can be used in an immunoassay by reflecting surrounding environments, for example, by reflecting a numerical value in a test zone, which is changed by external factors such as temperatures of a sample and a device, an amount and components of an injected sample, variations of the device, and the like, in a reference zone and changing the numerical value in the test zone, and can be useful in minimizing analysis errors due to a low probability of causing a non-specific reaction with a material in the sample.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 2, 2019
    Assignee: SK TELECOM CO., LTD.
    Inventors: Sunyoung Park, Jeongryul Kim, Seong Woo Kim, Kum-Joo Shin, Ji-Chul Lee
  • Patent number: 9859617
    Abstract: An antenna methodology where a set of antennas are formed that take the shape of a mobile wireless device and can be integrated into the outer housing of the mobile device. Tuning points are integrated into the design to provide the capability to compensate for hand effects and loading while the mobile device and antenna are touched by the user. The body then becomes a part of the antenna and acts as an anchor for the poles within the matching circuit. These antennas are actively tuned based on detection criteria while dynamically tracking system performance. The structure is based on a loaded loop coupled to an isolated magnetic dipole (IMD) element. The loop is actively tuned according to design rules residing in a processor in the mobile device.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: January 2, 2018
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Sung-Soo Nam, Ji-Chul Lee, Sung Hawan, Chun-Su Yoon
  • Patent number: 9755305
    Abstract: An active antenna and associated circuit topology is adapted to provide active impedance matching and band switching of the antenna using a shared tunable component. Using a shared tunable component, such as a tunable capacitor or other tunable component, the antenna provides a low cost and effective active antenna solution. In certain embodiments, one or more passive components can be further utilized to design band switching of the antenna from a first frequency to a second desired frequency.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: September 5, 2017
    Assignee: Ethertronics, Inc.
    Inventors: Laurent Desclos, Chun Su Yoon, Sung-soo Nam, M K Chun, Ji-Chul Lee
  • Patent number: 9692122
    Abstract: An active antenna system and algorithm is described that provides for dynamic tuning and optimization of antenna system parameters for a MIMO system where correlation and isolation between antennas in the system are dynamically altered to provide for greater throughput. As one or multiple antennas are loaded or de-tuned due to environmental changes, corrections to correlation and/or isolation are made by selecting the optimal antenna radiation pattern and by adjusting electrical length and/or reactive loading of transmission lines connecting the antennas. Multiple Isolated Magnetic Dipole (IMD) antennas are co-located and connected with a feed network that can include switches that adjust phase length for transmission lines connecting the antennas. Filtering is integrated into the feed network to improve rejection of unwanted frequencies. Filtering can also be implemented on the antenna structure.
    Type: Grant
    Filed: December 2, 2013
    Date of Patent: June 27, 2017
    Assignee: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Jeffrey Shamblin, Sung-Su Nam, Sung Hawan, Ji-Chul Lee, Chun-Su Yoon
  • Publication number: 20160291038
    Abstract: The present invention relates to a method for the immunological measurement using a hapten and an antibody binding to the hapten as a reference antibody, and a device for the immunological measurement using the reference antibody. According to the present invention, the method and the device for the immunological measurement can be used in an immunoassay by reflecting surrounding environments, for example, by reflecting a numerical value in a test zone, which is changed by external factors such as temperatures of a sample and a device, an amount and components of an injected sample, variations of the device, and the like, in a reference zone and changing the numerical value in the test zone, and can be useful in minimizing analysis errors due to a low probability of causing a non-specific reaction with a material in the sample.
    Type: Application
    Filed: October 31, 2014
    Publication date: October 6, 2016
    Inventors: Sunyoung PARK, Jeongryul KIM, Seong Woo KIM, Kum-Joo SHIN, Ji-Chul LEE
  • Publication number: 20140306859
    Abstract: An active antenna and associated circuit topology is adapted to provide active impedance matching and band switching of the antenna using a shared tunable component. Using a shared tunable component, such as a tunable capacitor or other tunable component, the antenna provides a low cost and effective active antenna solution. In certain embodiments, one or more passive components can be further utilized to design band switching of the antenna from a first frequency to a second desired frequency.
    Type: Application
    Filed: June 25, 2014
    Publication date: October 16, 2014
    Applicant: ETHERTRONICS, INC.
    Inventors: Laurent Desclos, Chun Su Yoon, Sung-soo Nam, MK Chun, Ji-Chul Lee