Patents by Inventor Chang-Yul Cheon

Chang-Yul Cheon 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: 10477673
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: November 12, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Ah Ron Lee
  • Publication number: 20190246492
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Application
    Filed: March 20, 2019
    Publication date: August 8, 2019
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Ah Ron Lee
  • Patent number: 10285258
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: May 7, 2019
    Assignee: Avago Technologies International Sales Pte. Limited
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Ah Ron Lee
  • Publication number: 20180324940
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Ah Ron Lee
  • Patent number: 10076023
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: September 11, 2018
    Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Aaron Lee
  • Publication number: 20180098416
    Abstract: A compartment EMI shield for use inside of a system module package is provided that comprises at least a first set of electrically-conductive wires that surrounds and extends over circuitry of the module package. Adjacent wires of the first set are spaced apart from one another by a predetermined distance selected to ensure that the compartment EMI shield attenuates a frequency or frequency range of interest. First and second ends of each of the wires are connected to an electrical ground structure. A length of each wire that is located in between the first and second ends of the respective wire extends above the circuitry and is spaced apart from the components of the circuitry so as not to be in contact with the components of the circuitry.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 5, 2018
    Inventors: Deog-Soon Choi, Chang-Yul Cheon, Sang-Hwa Jung, Sung-Phyo Lim, Aaron Lee
  • Publication number: 20080200803
    Abstract: Provided herein is a cancer detection and treatment instrument comprising: a first conductive plate; a second conductive plate which is opposed to the first conductive plate and has a first opening; a first signal line disposed between the first conductive plate and the second conductive plate; a first contact member of which one end is exposed through the first opening and of which the other end is connected to the first signal line; a dielectric portion filled between the first and second conductive plates and the first signal line; and a conductive layer surrounding both side surfaces and a front end surface of the dielectric portion which are exposed. Therefore, it is possible to accurately detect cancer by the use of the ultrahigh-frequency signal and to treat a diseased portion without damaging tissues around the diseased portion.
    Type: Application
    Filed: November 1, 2006
    Publication date: August 21, 2008
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Young Woo Kwon, Chang Yul Cheon, Jei Won Cho, Jeong Hoon Yoon
  • Patent number: 6873289
    Abstract: The present invention relates to a beam steering system. The system includes an array of a plurality of antenna elements, each antenna element being electrically and mechanically controlled for steering a beam in a specific direction, and a millimeter wave subsystem quasi-optically integrated with a 3-dimensional beam steering device and an MMIC-type active circuit. The antenna element is controlled in real time by an electrical driving method so as to be moved in 2-dimensional space. That is, in the 3-dimensional system of the present invention, the beam is electrically controlled by a phase shifter, and each antenna element is physically moved by a mechanical driving mechanism. The 3-dimensional beam steering antenna and the associated devices are monolithically integrated on a substrate using MEMS technology, and the active circuit elements such as a mixer, a power amplifier (PA), a low noise amplifier (LNA), a VCO, etc. are integrated in an MMIC active array.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: March 29, 2005
    Assignee: Seoul National University
    Inventors: Young-Woo Kwon, Chang-Yul Cheon
  • Patent number: 6765534
    Abstract: The present invention is concerning an element antenna to construct an efficient antenna system, which is able to control mechanical movement of micro-strip patch antenna and to control electrical phase of signal. The movement of an element antenna is come from movement of a platform on which the element antenna is formed. The platform is made of dielectric material and able to move independently from base. The element antenna can be controlled to any direction. An antenna patch has magnetic material layer such as nickel on the backside. The antenna patch is driven by magnetic force.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: July 20, 2004
    Assignee: Seoul National University
    Inventors: Young-Woo Kwon, Chang-Yul Cheon, Yong-Kweon Kim, Seung-Hyun Song, Chang-Wook Baek, Yang-Soo Lee
  • Publication number: 20030160722
    Abstract: The present invention is concerning an element antenna to construct an efficient antenna system, which is able to control mechanical movement of micro-strip patch antenna and to control electrical phase of signal. The movement of an element antenna is come from movement of a platform on which the element antenna is formed. The platform is made of dielectric material and able to move independently from base. The element antenna can be controlled to any direction. An antenna patch has magnetic material layer such as nickel on the backside. The antenna patch is driven by magnetic force.
    Type: Application
    Filed: December 14, 2001
    Publication date: August 28, 2003
    Inventors: Young-Woo Kwon, Chang-Yul Cheon, Yong-Kweon Kim, Seung-Hyun Song, Chang-Wook Baek, Yang-Soo Lee
  • Publication number: 20030034916
    Abstract: The present invention relates to a beam steering system. The system includes an array of a plurality of antenna elements, each antenna element being electrically and mechanically controlled for steering a beam in a specific direction, and a millimeter wave subsystem quasi-optically integrated with a 3-dimensional beam steering device and an MMIC-type active circuit. The antenna element is controlled in real time by an electrical driving method so as to be moved in 2-dimensional space. That is, in the 3-dimensional system of the present invention, the beam is electrically controlled by a phase shifter, and each antenna element is physically moved by a mechanical driving mechanism. The 3-dimensional beam steering antenna and the associated devices are monolithically integrated on a substrate using MEMS technology, and the active circuit elements such as a mixer, a power amplifier (PA), a low noise amplifier (LNA), a VCO, etc. are integrated in an MMIC active array.
    Type: Application
    Filed: July 31, 2002
    Publication date: February 20, 2003
    Inventors: Young-Woo Kwon, Chang-Yul Cheon