Patents by Inventor Kyu Choi

Kyu Choi 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).

  • METHODS OF OPERATING MEMORY SYSTEM
    Publication number: 20180165223
    Abstract: A method of operating a memory system includes setting a secured area in a volatile memory device of the memory system during a secure mode, writing secure data in the secured area during the secure mode, and when a write command for the secured area is inputted in a normal operation mode, preventing a write operation from occurring and generating an error signal. Accordingly, the secured area is set in the volatile memory device so that the hacking and the data forgery may be prevented.
    Type: Application
    Filed: August 22, 2017
    Publication date: June 14, 2018
    Inventors: Kyu-Dong LEE, Baek-Kyu CHOI, Ji-Won KIM
  • METHOD AND APPARATUS TO RECOGNIZE USER
    Publication number: 20180165517
    Abstract: Disclosed is a user recognition apparatus and method, the apparatus configured to determine a validity of an iris area for each frame, to perform an iris recognition when the iris area is valid, and to extract a facial feature for a fusion recognition when the iris area is invalid.
    Type: Application
    Filed: October 24, 2017
    Publication date: June 14, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyunjeong LEE, Sungjoo SUH, Changyong SON, Chang Kyu CHOI, Jaejoon HAN
  • SHIP
    Publication number: 20180162492
    Abstract: A ship includes: an boil-off gas heat exchanger installed on a downstream of the storage tank such that compressed boil-off gas (“first fluid”) is made to exchange heat and cooled using boil-off gas discharged from the storage tank as a refrigerant; a compressor installed on a downstream of the boil-off gas heat exchanger so as to compress a part of the boil-off gas discharged from the storage tank; an extra compressor installed on a downstream of the boil-off gas heat exchanger in parallel with the compressor so as to compress the other part of the boil-off gas discharged from the storage tank; a refrigerant heat exchanger for additionally cooling the first fluid that is cooled by the boil-off gas heat exchanger; and a refrigerant decompressing device which expands the second fluid sent to the refrigerant heat exchanger and cooled by the refrigerant heat exchanger.
    Type: Application
    Filed: April 5, 2016
    Publication date: June 14, 2018
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Su Kyung AN, Dong Kyu CHOI, Young Sik MOON, Hyun Jun SHIN, Hyun Min JANG, Jae Wook SON, Joon Chae LEE
  • Apparatus and method of sound modulation using touch screen with pressure sensor
    Patent number: 9997148
    Abstract: Disclosed are an apparatus and a method of generating a sound by using a touch screen. A sound modulation apparatus according to the present invention includes: a sensor information input unit configured to receive sensing information on a position, at which a touch input of a user is applied to the screen, and pressure according to the touch input applied to the screen; and a sound modulation unit configured to set a tone frequency and volume of a sound to be output, and set the tone frequency according to the position, to which the touch input of the user is applied, and set the volume according to a size of the pressure according to the touch input.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: June 12, 2018
    Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
    Inventors: Kwang Su Cho, Chang Kyu Choi, Choon Sung Nam, Min Gu Kang
  • Tunneling field-effect transistor with a plurality of nano-wires and fabrication method thereof
    Patent number: 9997596
    Abstract: A tunneling field-effect transistor may be provided that includes: a substrate; a source which is formed on the substrate and into which p+ type impurity ion is injected; a drain which is formed on the substrate and into which n+ type impurity ion is injected; a plurality of vertically stacked nanowire channels which are formed on the substrate; a gate insulation layer which is formed on the plurality of nanowire channels; and a gate which is formed on the gate insulation layer. As a result, it is possible to generate a higher driving current without changing the length of the gate and the area of the channel (degree of integration).
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: June 12, 2018
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Yang-Kyu Choi, Jun-Young Park
  • Rechargeable lithium battery
    Patent number: 9991515
    Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte, wherein the positive active material includes a compound represented by the following Chemical Formula 1, the negative active material includes a silicon-based compound, the compound represented by the above Chemical Formula 1 is included in an amount of about 3 wt % to about 30 wt % based on 100 wt % of the positive active material, and the silicon-based compound is included in an amount of about 3 wt % to about 10 wt % based on 100 wt % of the negative active material. Lix1CO1-yMyO2??Chemical Formula 1 In the above Chemical Formula 1, 1.05<x1<1.10, 0.03<y<0.05 and, M includes one selected from B, Mg, Ca, Sr, Ba, Ti, V, Cr, Fe, Cu, Al, and a combination thereof.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: June 5, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-Ki Kim, Ick-Kyu Choi, Young-Hun Lee, Na-Ri Park, Soon-Rewl Lee, Yong-Chul Park, Hong-Kyu Choi
  • BOIL-OFF GAS RE-LIQUEFYING SYSTEM
    Publication number: 20180148138
    Abstract: A system for reliquefying a boil off gas generated in a storage tank includes a first compressor compressing a partial amount (hereinafter, referred to as ‘fluid a’) of boil off gas discharged from the storage tank, a second compressor compressing another partial amount (hereinafter, referred to as ‘fluid b’) of boil off gas discharged from the storage tank, a second expanding unit expanding a partial amount (hereinafter, referred to as ‘fluid c’) of a flow formed as the fluid a and the fluid b join, a heat-exchanger cooling another partial amount (hereinafter, referred to as ‘fluid d’) of the flow formed as the fluid a and the fluid b join, and a first expanding unit expanding the fluid d cooled by the heat-exchanger, wherein the heat-exchanger heat-exchanges the fluid d with the fluid c as a coolant expanded by the second expanding unit to cool the fluid d.
    Type: Application
    Filed: April 20, 2016
    Publication date: May 31, 2018
    Applicant: DAEWOO SHIPBUILDING & MARINE ENGINEERING CO., LTD.
    Inventors: Hyun Jun SHIN, Dong Kyu CHOI, Young Sik MOON, Su Kyung AN, Joon Chae LEE
  • Digital image processing method, non-transitory computer-readable recording medium having recorded thereon a program for executing the digital image processing method, and digital image processing apparatus
    Patent number: 9984435
    Abstract: A digital image processing method and apparatus eliminates or reduces the temporal delay associated a perspective transform being generated for a region of an captured image. The method includes: receiving a preview image; detecting at least one rectangular region from the preview image and obtaining coordinate information corresponding to the at least one rectangular region; determining a main rectangular region from among the at least one rectangular region detected from the preview image; capturing an image; and generating a perspective-transformed image by performing perspective transform on the captured image by using coordinate information corresponding to the main rectangular region.
    Type: Grant
    Filed: September 1, 2015
    Date of Patent: May 29, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-seok Song, Tae-hoon Kang, Myung-kyu Choi
  • Power inductor and method of manufacturing the same
    Patent number: 9984812
    Abstract: A power inductor includes a substrate having a through hole in a central portion thereof; a first internal coil pattern and a second internal coil pattern each having a spiral shape and provided on opposite surfaces of the substrate outwardly of the through hole; a magnetic body enclosing the substrate on which the first internal coil pattern and the second internal coil pattern are provided, end portions of the first internal coil pattern and the second internal coil pattern being exposed to opposite end surfaces thereof; a first external electrode and a second external electrode provided on the opposite end surfaces of the magnetic body to be connected to the end portions of the first internal coil pattern and the second internal coil pattern, respectively; and an anti-plating layer covering the magnetic body between the first external electrode and the second external electrode.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Youn Kyu Choi, Hea Ah Kim, Jae Yeol Choi
  • Method of displaying menu based on depth information and space gesture of user
    Patent number: 9983779
    Abstract: A method of displaying a menu based on at least one of a depth information and a space gesture is provided. The method including determining depth information corresponding to a distance from a screen of a user terminal to a hand of a user; identifying at least one layer among a plurality of layers based on the depth information; and applying a graphic effect to the identified layer so that a menu page corresponding to the at least one identified layer is displayed on the screen of the user terminal.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 29, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Keun Joo Park, Hyun Surk Ryu, Chang Kyu Choi, Joon Ah Park
  • METHOD AND APPARATUS TO PERFORM FACIAL EXPRESSION RECOGNITION AND TRAINING
    Publication number: 20180144185
    Abstract: A facial expression recognition method includes actuating a processor to acquire an input image including an object; and identifying a facial expression intensity of the object from the input image based on a facial expression recognition model.
    Type: Application
    Filed: June 19, 2017
    Publication date: May 24, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byungin YOO, Youngjun KWAK, Youngsung KIM, Seonmin RHEE, Chang Kyu CHOI
  • RFID reader antenna
    Patent number: 9979072
    Abstract: Provided is a transmitting/receiving antenna, including: an array antenna including a plurality of element antennas; and a feeding part transmitting a transmitting signal to the plurality of element antennas and receiving a signal received through the array antenna, in which the plurality of element antennas each include a radiation patch and a transmitting port and a receiving port positioned between the feeding part and the radiation patch.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: May 22, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Won Kyu Choi, Chan-Won Park, Jae-Young Jung, Hae-Won Son
  • Touch panel and manufacturing method thereof
    Patent number: 9977553
    Abstract: A touch panel includes a substrate, a first signal line, and a second signal line. The first signal line extends on the substrate in a first direction and includes a first height from the substrate. The second signal line extends on the substrate in a second direction crossing the first direction and includes a second height from the substrate. The second signal line is disposed in the same layer as the first signal line. The second height is greater than the first height.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: May 22, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jung Ha Son, Jae-Wook Kang, Kyung Seop Kim, Sung Kyun Park, Sang Kyu Choi, Yong Woo Park, Sang Youn Han
  • BATTERY MODULE, BATTERY PACK INCLUDING BATTERY MODULE, AND AUTOMOBILE INCLUDING BATTERY PACK
    Publication number: 20180138474
    Abstract: Provided is a battery module including: a battery cell assembly including a plurality of battery cells stacked with one another; end plates configured to cover front and rear portions of the battery cell assembly and to be coupled to the battery cell assembly at a side of each of the end plates; and a fixing holder configured to be mounted to a battery cell assembly at an opposite side of each of the end plates in order to at least partially cover the battery cell assembly, and to protrude from front and rear portions of the end plates.
    Type: Application
    Filed: July 11, 2016
    Publication date: May 17, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Yang-Kyu CHOI, Seong-Tae KIM
  • USER AUTHENTICATION METHOD USING FINGERPRINT IMAGE AND METHOD OF GENERATING CODED MODEL FOR USER AUTHENTICATION
    Publication number: 20180137329
    Abstract: A user authentication method using a fingerprint image, the user authentication method includes receiving at least a portion of a fingerprint image of a user; actuating a processor to divide the fingerprint image into a plurality of first sub-blocks; generate a set of input codes by encoding the first sub-blocks based on a coded model; measure a similarity between the set of the input codes and a set of registered codes included in a pre-registered binary codebook; and authenticate the user based on the similarity.
    Type: Application
    Filed: July 19, 2017
    Publication date: May 17, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Namjoon KIM, Kyuhong KIM, Chang Kyu CHOI
  • METHOD AND APPARATUS WITH IRIS REGION EXTRACTION
    Publication number: 20180137335
    Abstract: A method and apparatus for extracting an iris region is disclosed. The apparatus may generate a classification map associated with an iris region from an eye image using a trained neural network model, estimate a geometric parameter associated with the iris region using the generated classification map, and extract the iris region from the eye image based on the estimated geometric parameter.
    Type: Application
    Filed: August 22, 2017
    Publication date: May 17, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jihye KIM, Sungjoo SUH, Hyunjeong LEE, Chang Kyu CHOI
  • METHOD AND APPARATUS FOR ANALYZING FACIAL IMAGE
    Publication number: 20180137388
    Abstract: A method to analyze a facial image includes: inputting a facial image to a residual network including residual blocks that are sequentially combined and arranged in a direction from an input to an output; processing the facial image using the residual network; and acquiring an analysis map from an output of an N-th residual block among the residual blocks using a residual deconvolution network, wherein the residual network transfers the output of the N-th residual block to the residual deconvolution network, and N is a natural number that is less than a number of all of the residual blocks, and wherein the residual deconvolution network includes residual deconvolution blocks that are sequentially combined, and the residual deconvolution blocks correspond to respective residual blocks from a first residual block among the residual blocks to the N-th residual block.
    Type: Application
    Filed: October 27, 2017
    Publication date: May 17, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Youngsung KIM, Byungin YOO, Deheng QIAN, Hui ZHANG, Chang Kyu CHOI, He ZHENG, Jae-Joon HAN, Jingtao XU, Tianchu GUO
  • FINGERPRINT ENROLLMENT METHOD AND APPARATUS
    Publication number: 20180129861
    Abstract: A processor fingerprint enrollment method and apparatus is disclosed. A processor implemented fingerprint enrollment method includes performing a matching between a received input fingerprint image of a user and one or more enrolled fingerprint images, and selectively, based on a result of the matching identifying a matched enrolled fingerprint image from the one or more enrolled fingerprint image and based on a calculated degree of diversity in the fingerprint corresponding to an overlapping region between the input fingerprint image and the matched enrolled fingerprint image, storing the input fingerprint as another enrolled fingerprint image.
    Type: Application
    Filed: June 21, 2017
    Publication date: May 10, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyuhong KIM, Namjoon KIM, Chang Kyu CHOI
  • ELECTRONIC DEVICE AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20180131797
    Abstract: An electronic device is disclosed. The electronic device includes a display, a memory, and a processor electrically connected with the display and the memory, wherein the processor controls to display, on the display, a directory comprising at least one contact list stored in the memory, and controls to identify a selected contact among the contact list based on an external input signal, and receive information to be displayed to the selected contact, and match and store the selected contact and the received information.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Inventor: Yeon-Kyu CHOI
  • CONVOLUTIONAL NEURAL NETWORK PROCESSING METHOD AND APPARATUS
    Publication number: 20180129893
    Abstract: A convolutional neural network (CNN) processing method and apparatus. The apparatus may select, based on at least one of a characteristic of at least one kernel of a convolution layer or a characteristic of an input of the convolution layer, one operation mode from a first operation mode reusing a kernel, of the at least one kernel, and a second operation mode reusing the input, and perform a convolution operation based on the selected operation mode.
    Type: Application
    Filed: October 31, 2017
    Publication date: May 10, 2018
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Jinwoo SON, Changyong SON, Chang Kyu CHOI, Jaejoon HAN