Patents by Inventor Yong Ju

Yong Ju 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).

  • DUTY CYCLE CORRECTION CIRCUIT AND OPERATION METHOD THEREOF
    Publication number: 20150200656
    Abstract: A duty cycle correction circuit includes a clock adjustment unit configured to adjust a duty ratio of an input clock signal in response to a duty control signal and generate an output clock signal, a tracking type setting unit configured to generate an tracking type selection signal for setting a first or second tracking type based on a duty locking state of the output clock signal, and a control signal generation unit configured to generate the duty control signal, into which the first or second tracking type is incorporated, in response to the tracking type selection signal and the output clock signal.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Shin-Deok KANG, Jae-Min JANG, Yong-Ju KIM, Hae-Rang CHOI
  • DUTY CYCLE CORRECTION CIRCUIT AND OPERATION METHOD THEREOF
    Publication number: 20150200655
    Abstract: A duty cycle correction circuit includes a clock adjustment unit configured to adjust a duty ratio of an input clock signal in response to a duty control signal and generate an output clock signal, a tracking type setting unit configured to generate an tracking type selection signal for setting a first or second tracking type based on a duty locking state of the output clock signal, and a control signal generation unit configured to generate the duty control signal, into which the first or second tracking type is incorporated, in response to the tracking type selection signal and the output clock signal.
    Type: Application
    Filed: March 25, 2015
    Publication date: July 16, 2015
    Inventors: Shin-Deok KANG, Jae-Min JANG, Yong-Ju KIM, Hae-Rang CHOI
  • Test circuit for testing refresh circuitry of a semiconductor memory device
    Patent number: 9076550
    Abstract: A test circuit of a semiconductor apparatus includes a test temperature information generation section, an erroneous operation prevention unit, and a refresh cycle adjustment unit. The test temperature information generation section outputs test temperature information having a plurality of bits in a test operation mode, and irregularly changes logic values of the plurality of bits and transition time points of the logic values. The erroneous operation prevention unit generates a temperature compensation signal in response to the test temperature information. The refresh cycle adjustment unit changes a cycle of a reference refresh signal in response to the temperature compensation signal, and generates a refresh signal.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: July 7, 2015
    Assignee: SK Hynix Inc.
    Inventors: Jong Ho Son, Yong Ju Kim
  • METHOD OF DRIVING A DISPLAY PANEL AND DISPLAY APPARATUS PERFORMING THE METHOD
    Publication number: 20150170585
    Abstract: A method of driving a display panel includes receiving a screen selection signal which is configured to select one of a first screen of the display panel and a second screen of the display panel opposite to the first screen, selecting one of first option data, which are configured to display a normal image on the first screen, and second option data, which are configured to display the normal image on the second screen, based on the screen selection signal and driving the display panel based on the selected one of the first option data and the second option data.
    Type: Application
    Filed: April 18, 2014
    Publication date: June 18, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Yong-Ju JEONG, Jae-Kook KIM, Jeong-Jin PARK, Seung-Woon SHIN, Choong-Seob OH, Hyoung-Bin LIM, Min-Sung CHOI
  • Majority decision circuit
    Patent number: 9054697
    Abstract: A majority decision circuit includes: a majority decision unit configured to compare first data with second data to decide whether one of the first data and the second data has more bits with a first logical value; and an offset application unit configured to control the majority decision unit so that the majority decision unit decides, in a case when the number of bits with the first logical value among the first data is equal to the number of bits with the first logical value among the second data, that the first data have more bits with the first logical value if offset is a first setting value in a first phase and decides that the second data have more bits with the first logical value if the offset is a second setting value in a second phase.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: June 9, 2015
    Assignee: SK Hynix Inc.
    Inventors: Hae-Rang Choi, Yong-Ju Kim, Oh-Kyong Kwon, Kang-Sub Kwak, Jun-Yong Song, Hyeon-Cheon Seol
  • PHOTOGRAPHING DEVICE AND STITCHING METHOD OF CAPTURED IMAGE
    Publication number: 20150138309
    Abstract: A stitching method of a captured image is disclosed. The stitching method includes capturing a plurality of images having different viewing angles, setting a feature point extraction region on the plural images, extracting a plurality of feature points from a plurality of objects in the set region, extracting a combination line connecting corresponding feature points based on the plural extracted feature points, outputting the extracted combination line, and combining the plural images based on the extracted combination line. Accordingly, the stitching method provides an effective and high-quality stitched image.
    Type: Application
    Filed: January 30, 2014
    Publication date: May 21, 2015
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Joo Myoung SEOK, Seong Yong LIM, Yong Ju CHO, Ji Hun CHA
  • GRAPHENE ELECTRONIC DEVICE
    Publication number: 20150137077
    Abstract: A graphene electronic device includes a substrate, a first electrode and a second electrode provided on the substrate and spaced apart from each other, and graphene channels connecting the first electrode with the second electrode. Each of the graphene channels is separated from the substrate to have a cylindrical structure.
    Type: Application
    Filed: December 10, 2014
    Publication date: May 21, 2015
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong Ju YUN, Kibong SONG
  • Method of fabricating a fiber
    Patent number: 9034239
    Abstract: Provided are fiber fabrication method and the fiber fabricated thereby. In this method, different monomer solutions are electrospun through nozzles whose outlets are stuck to each other and simultaneously interfacially polymerized to form a polymer fiber without a complicated process of preparing a polymer solution. Therefore, a polymer fiber can be simply prepared.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: May 19, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Yong Ju Yun, Zin Sig Kim, Han Young Yu, Yark Yeon Kim, Won Ick Jang
  • Apparatus and method for correcting color of image projection device
    Patent number: 9030485
    Abstract: An apparatus and a method for correcting colors of an image projection device are provided. The method includes: acquiring a photographed image by photographing a sample image projected on projection surface; generating input-output color information for n regions, based on color values of a block in the sample image and corresponding color values of the block in the photographed image; selecting one of the n regions of photographed images as a reference region; generating look-up tables (LUTs) for non-reference regions, based on the reference region and the input and output color information; and correcting colors of input images to be projected by the image projection device using the look-up tables, thereby minimizing color difference of the input images on the projection surface for both intra and inter projection device color correction while simplifying the correction procedure.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: May 12, 2015
    Assignees: Electronics and Telecommunications Research Institute, National University of Sciences & Technology
    Inventors: Yong Ju Cho, Yong Ju Lee, Seung Kwon Beack, Ji Hun Cha, Seong Yong Lim, Myung Seok Ki, Joo Myoung Seok, Jin Woong Kim, Muhammad Murtaza Khan, Rehan Hafiz, Haris Anis, Mutahir Latif, Ashar Rasul, Arshad Ali
  • SEMICONDUCTOR DEVICE AND METHOD FOR DRIVING THE SAME
    Publication number: 20150124545
    Abstract: A semiconductor device includes a periodic signal generating circuit for generating a periodic signal having a set period regardless of changes in temperature in response to a first trimming signal as a default value and controlling the set period of the periodic signal based on the temperature in response to a second trimming signal, and an internal circuit to perform a set operation in response to the periodic signal.
    Type: Application
    Filed: May 15, 2014
    Publication date: May 7, 2015
    Applicant: SK hynix Inc.
    Inventors: Yong-Ju KIM, Dae-Han KWON, Hae-Rang CHOI, Jae-Min JANG
  • CONDUCTIVITY IMPROVEMENTS FOR III-V SEMICONDUCTOR DEVICES
    Publication number: 20150123171
    Abstract: Conductivity improvements in III-V semiconductor devices are described. A first improvement includes a barrier layer that is not coextensively planar with a channel layer. A second improvement includes an anneal of a metal/Si, Ge or SiliconGermanium/III-V stack to form a metal-Silicon, metal-Germanium or metal-SiliconGermanium layer over a Si and/or Germanium doped III-V layer. Then, removing the metal layer and forming a source/drain electrode on the metal-Silicon, metal-Germanium or metal-SiliconGermanium layer. A third improvement includes forming a layer of a Group IV and/or Group VI element over a III-V channel layer, and, annealing to dope the III-V channel layer with Group IV and/or Group VI species. A fourth improvement includes a passivation and/or dipole layer formed over an access region of a III-V device.
    Type: Application
    Filed: January 14, 2015
    Publication date: May 7, 2015
    Inventors: MARKO RADOSAVLJEVIC, PRASHANT MAJHI, JACK T. KAVALIEROS, NITI GOEL, WILMAN TSAI, NILOY MUKHERJEE, YONG JU LEE, GILBERT DEWEY, WILLY RACHMADY
  • Displacement control valve for variable displacement compressor
    Patent number: 9022061
    Abstract: The invention provides a displacement control valve for a variable displacement compressor comprising: a valve housing having a discharge chamber connecting space and a crank chamber connecting space; an electronic solenoid; and a valve body configured to reciprocate within the valve housing the electronic solenoid. The displacement control valve is opened and closed when the valve body moves from the discharge chamber connecting space toward the crank chamber connecting space, making it possible to enlarge a cross-sectional area of the valve body and improving productivity.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: May 5, 2015
    Assignees: Doowon Technical College, Doowon Electronic Co., Ltd.
    Inventors: Hak Soo Kim, Young Il Chang, Yong Ju Lee, Ki Jung An, Geon Ho Lee
  • TRANSFER DEVICE AND IMAGE FORMING APPARATUS HAVING THE SAME
    Publication number: 20150117916
    Abstract: A transfer device and an image forming apparatus having the same are provided. Shapes of cam profiles of first cam members and second cam members controlling movement of first slider members moving a first transfer roller corresponding to a black developer, and second slider members moving a second transfer roller corresponding to a color developer. Times are different as when movement of the first slider members is completed and when movement of the second slider members is completed in mode conversion among a ready mode, a mono mode and a color mode, and thus a driving load generated when the first and second cam members are rotated is reduced, non-uniformity of the rotating speeds of the first and second cam members is reduced, and problems generated due to non-uniform rotating speeds of the cam members are reduced.
    Type: Application
    Filed: December 29, 2014
    Publication date: April 30, 2015
    Inventors: Jeong Yong JU, Jun Ho LEE, Byeong Hwa AHN
  • Duty cycle correction circuit and operation method thereof
    Patent number: 9018994
    Abstract: A duty cycle correction circuit includes a clock adjustment unit configured to adjust a duty ratio of an input clock signal in response to a duty control signal and generate an output clock signal, a tracking type setting unit configured to generate an tracking type selection signal for setting a first or second tracking type based on a duty locking state of the output clock signal, and a control signal generation unit configured to generate the duty control signal, into which the first or second tracking type is incorporated, in response to the tracking type selection signal and the output clock signal.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: April 28, 2015
    Assignee: SK Hynix Inc.
    Inventors: Shin-Deok Kang, Jae-Min Jang, Yong-Ju Kim, Hae-Rang Choi
  • Data recovery circuit and operating method thereof
    Patent number: 9018991
    Abstract: A data recovery circuit may include a data sampling unit suitable for sampling source data including an edge data using data clocks and an edge clock, a data extraction unit suitable for extracting the edge data from sampled data outputted from the data sampling unit, a control signal generation unit suitable for generating a phase control signal in response to the edge data, and a multi-clock control unit suitable for controlling phases of the data clocks and the edge clock in response to the phase control signal.
    Type: Grant
    Filed: December 15, 2013
    Date of Patent: April 28, 2015
    Assignees: SK Hynix Inc., Industry-University Cooperation Foundation Hanyang University
    Inventors: Hae-Rang Choi, Yong-Ju Kim, Oh-Kyong Kwon, Kang-Sub Kwak, Jun-Yong Song, Hyeon-Cheon Seol
  • LASER ANNEALING METHODS FOR INTEGRATED CIRCUITS (ICs)
    Publication number: 20150111341
    Abstract: Laser annealing methods for integrated circuits (IC) are disclosed. In particular, an upper surface of an integrated circuit is annealed with a laser using a brief burst of light from the laser. In an exemplary embodiment, the brief burst of light from the laser lasts approximately fifty (50) to five hundred (500) microseconds. This brief burst will raise the temperature of the surface to approximately 1200° C.
    Type: Application
    Filed: January 8, 2014
    Publication date: April 23, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Yong Ju Lee, Yang Du
  • Conductive ink composition, method for manufacturing the same, and method for manufacturing conductive thin layer using the same
    Patent number: 8999204
    Abstract: Disclosed is a conductive ink composition, a manufacturing method thereof, and a manufacturing method of a conductive thin film using the same, and more specifically, a conductive ink composition is provided that includes composite metal nanoparticles including first metal nanoparticles and second metal nanoparticles, and a polymer matrix. The polymer matrix is a composition including a polymer and a solvent, the first metal nanoparticles and the second metal nanoparticles are different metals, and the content of the composite metal nanoparticles is about 20 to about 25 wt %, the content of the polymer is about 5 to about 10 wt %, and the content of the solvent is about 65 to about 75 wt %, based on the total weight of the composition.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 7, 2015
    Assignee: Korea Institute of Science and Technology
    Inventors: Jae-Min Hong, Yong-Won Song, Yong-Ju Jung, Hee-Dok Choi, Won-Suk Han, Hak-Sung Kim
  • Operating methods for virtual machine server and nodes based on round trip time (RTT) information and apparatuses thereof
    Patent number: 9003403
    Abstract: Disclosed are operating methods of a server and a node, and apparatuses thereof, and more particularly, to operating methods of a virtual machine server and a virtual machine node, and apparatuses thereof. The operating method of the virtual machine server according to the exemplary embodiment of the present invention includes: generating index information of blocks for booting a virtual machine in a virtual machine image; generating list information of neighboring nodes for a target node; and transferring the index information and the list information to the target node.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 7, 2015
    Assignee: Electronics and Telecommunications Research Institute
    Inventor: Yong Ju Lee
  • RATE ADAPTATION METHOD USING BIT ERROR RATE FOR MULTIMEDIA SERVICE AND APPARATUS THEREFOR
    Publication number: 20150095727
    Abstract: Rate adaptation is carried out using bit error rate (BER) to enable effective multimedia transmission. The BER can be estimated using signal strength in a MAC layer and modulation information (FIGS. 7-9), and can be compatibly used in different wireless networks by means of message standardization.
    Type: Application
    Filed: June 11, 2013
    Publication date: April 2, 2015
    Inventors: Yong Ju Cho, Ji Hun Cha
  • SEMICONDUCTOR MEMORY DEVICE HAVING PADS
    Publication number: 20150076703
    Abstract: A semiconductor memory device includes a semiconductor circuit substrate having a chip pad forming region. A pair of data lines are formed on the semiconductor circuit substrate at one side of the chip pad region. The pair of data lines extend along a direction that the chip pad region of the semiconductor circuit substrate extends. The pair of data lines are arranged to be adjacent to each other and receive a pair of differential data signals. A power supply line is formed on the semiconductor circuit substrate at the other side of the chip pad region. The power supply line extends along the direction that the chip pad region of the semiconductor circuit substrate extends, and the power supply line receives power.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 19, 2015
    Inventors: Chang Kun PARK, Seong Hwi SONG, Yong Ju KIM, Sung Woo HAN, Hee Woong SONG, Ic Su OH, Hyung Soo KIM, Tae Jin HWANG, Hae Rang CHOI, Ji Wang LEE, Jae Min JANG