Patents by Inventor Han Cho

Han Cho 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).

  • Gate driver and a display device including the same
    Patent number: 9203395
    Abstract: A gate driver includes a plurality of stages, wherein an n-th stage includes: a pull-up unit configured to output a high voltage of a clock signal as a high voltage of an n-th gate signal; a pull-down unit configured to decrease the high voltage of the n-th gate signal to a first low voltage; a discharging unit configured to discharge a voltage of the first node to a second low voltage lower than the first low voltage; a carry unit configured to output the high voltage of the clock signal as an n-th carry signal; an inverter unit configured to output a signal in synchronization with the clock signal; a first node storage unit configured to maintain the voltage of the first node at the second low voltage; and a second node storage unit configured to maintain the voltage of the second node at the first or second low voltage.
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kang Nam Kim, Duc-Han Cho, You Mee Hyun, Jeong-Il Kim, Jong Woong Chang
  • SBC FOR CLOUD ENVIRONMENT AND METHOD FOR OPERATING SBC
    Publication number: 20150326734
    Abstract: A resource monitoring method comprises the steps of: generating process information including a process identifier, process user, process name, CPU usage, and IO usage; determining at least one first process having the same process user and process name from among a plurality of processes currently being executed; generating first group process information including a group process identifier, total CPU usage, and total IO usage of the determined at least one first process; and monitoring resources of the computing device in units of the generated first group process information.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 12, 2015
    Inventors: Ji Hyung KIM, Jae-Han CHO, Dae Young KIM
  • IRIS RECOGNITION DEVICE AND MOBILE DEVICE HAVING THE SAME
    Publication number: 20150269419
    Abstract: An iris recognition device, a mobile device having the same, and a method of biometric authentication using the same are provided. The iris recognition device includes: a light source unit configured to transmit a light signal to an iris; and a light source receiver configured to receive a reflected light signal of an image of the iris from the iris, and remove an offset of the reflected light signal, corresponding to noise in the iris image, using a plurality of reference signals having different phases.
    Type: Application
    Filed: November 3, 2014
    Publication date: September 24, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwang-Hyuk BAE, Tae-Chan KIM, Seong-Yeong JEONG, Shung-Han CHO
  • METHOD OF UNLOCKING AN ELECTRONIC DEVICE BASED ON MOTION RECOGNITIONS, MOTION RECOGNITION UNLOCKING SYSTEM, AND ELECTRONIC DEVICE INCLUDING THE SAME
    Publication number: 20150248551
    Abstract: A method of unlocking an electronic device based on motion recognitions generates motion information by detecting a user's motion, calculates optical flows based on the motion information, converts the optical flows into a code by sorting and grouping the optical flows based on predetermined reference directions, generates a comparison result indicating whether the code is consistent with a predetermined password by comparing the code with the predetermined password, and determines whether to unlock the electronic device based on the comparison result.
    Type: Application
    Filed: March 3, 2015
    Publication date: September 3, 2015
    Inventors: KWANG-HYUK BAE, KYU-MIN KYUNG, TAE-CHAN KIM, SEONG-YEONG JEONG, SHUNG-HAN CHO
  • TIME OF FLIGHT CAMERA DEVICE AND METHOD OF DRIVING THE SAME
    Publication number: 20150204970
    Abstract: A time of flight (TOF) camera device and a method of driving the same are provided. The TOF camera device includes a pulse generator configured to generate a pulse signal, and generate a first photo gate signal and a second photo gate signal; a light source configured to irradiate an object with light emitted in synchronization with the pulse signal; and an image sensor configured to receive light reflected from the object in synchronization with the first photo gate signal during a first frame, and receive light reflected from the object in synchronization with the second photo gate signal during a second frame. The pulse generator is further configured to modulate the pulse signal so as to use a frequency of the light as a single frequency.
    Type: Application
    Filed: October 30, 2014
    Publication date: July 23, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seong-Yeong JEONG, Kyu-Min KYUNG, Tae-Chan KIM, Kwang-Hyuk BAE, Shung-Han CHO
  • METHOD AND SYSTEM FOR ANALYZING MOTION OF SUBJECT USING EVENT-BASED SENSOR
    Publication number: 20150192408
    Abstract: A method is provided for analyzing motion of a subject. The method includes receiving multiple events from an event-based sensor, the events corresponding to a luminance change of the subject; calculating velocities of the events and directions of the events; generating a motion analysis table comprising an X axis classified into multiple velocity sections, a Y axis classified into multiple direction sections, and multiple cells representing frequencies of events corresponding to combinations of the velocity sections and the direction sections; and determining a motion of the subject based on the motion analysis table.
    Type: Application
    Filed: November 6, 2014
    Publication date: July 9, 2015
    Inventors: KWANG-HYUK BAE, KYU-MIN KYUNG, SEONG-YEONG JONG, TAE-CHAN KIM, SHUNG-HAN CHO
  • DISPLAY APPARATUS INCLUDING DISTANCE SEPARATOR
    Publication number: 20150171364
    Abstract: A display apparatus includes: a display panel including a substrate where a display unit is formed, and an encapsulation unit covering the display unit; a functional film adhered to the display panel; a window cover provided on the functional film; and an adhesive interposed in at least one of regions where the display panel, the functional film, and the window cover are adhered to each other, wherein a distance separator, including at least one opening for providing a path for ultraviolet rays for hardening the adhesive, is provided between the display panel and the window cover.
    Type: Application
    Filed: April 30, 2014
    Publication date: June 18, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Kyu-Han Bae, Dai-Han Cho
  • Depth Sensor and Method of Operating the Same
    Publication number: 20150130904
    Abstract: A method of operating a depth sensor includes generating a first photo gate signal and second through fourth photo gate signals respectively having 90-, 180- and 270-degree phase differences from the first photo gate signal, applying the first photo gate signal and the third photo gate signal to a first row of a pixel array and the second photo gate signal and the fourth photo gate signal to a second row adjacent to the first row in a first frame using a first clock signal, and applying the first photo gate signal and the third photo gate signal to a first column of the pixel array and the second photo gate signal and the fourth photo gate signal to a second column adjacent to the first column in a second frame using a second clock signal.
    Type: Application
    Filed: January 8, 2014
    Publication date: May 14, 2015
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kwang Hyuk Bae, Kyu Min KYUNG, Tae Chan KIM, Shung Han CHO
  • IMAGE PROCESSING DEVICE FOR EXTRACTING FOREGROUND OBJECT AND IMAGE PROCESSING METHOD THEREOF
    Publication number: 20150117717
    Abstract: An image processing device capable of generating foreground object data by using a captured image includes a depth data generator configured to generate depth data of the captured image; an amplitude data generator configured to generate amplitude data of the captured image; a foreground object detector configured to perform a first detection operation for detecting the foreground object based on the generated depth data and first reference background data, and to perform a second detection operation for detecting the foreground object based on the generated amplitude data and second reference background data; and a foreground object data generator configured to generate the foreground object data based on a result of the first detection operation and a result of the second detection operation.
    Type: Application
    Filed: July 21, 2014
    Publication date: April 30, 2015
    Inventors: Shung Han CHO, Kyu-Min KYUNG, Taechan KIM, KwangHyuk BAE, Seongyeong JEONG
  • Ball Stopping Net
    Publication number: 20150087445
    Abstract: A ball stopping net is provided, which includes a loop, propping poles, fold-butting poles, hexagonal-shaped holding fabrics, and a net. Each of the two propping poles comprises an upper end and a lower end, and the upper end is curved and engaged rotatably with a mid point of a corresponding side portion of the loop. Each of the two fold-butting poles comprises a first arm and a second arm engaging each other with a hinge, and the first arm is connected to a lower point of the loop rotatably and the second arm is connected to a lower point of a corresponding propping pole rotatably. Each of the two hexagonal-shaped holding fabrics has three queuing sides and three plain sides alternatively, and are queued through the queuing side of the hexagonal-shaped holding fabric.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Inventor: Kwang Han Cho
  • Display device and driving method thereof
    Patent number: 8970572
    Abstract: A driving apparatus for a display device includes: a signal controller that generates a pre-clock signal, a charge sharing control signal and a scanning start signal; a clock signal generator that generates a clock signal swinging between a first voltage and a second voltage based on the pre-clock signal and the charge sharing control signal; and a gate driver that generates gate signals based on the scanning start signal and the clock signal, where the clock signal generator includes: a voltage generator that generates a third voltage; and a clock generator that receives one of the first to third voltages in response to the pre-clock signal and the charge sharing control signal, and outputs an output signal based on the one of the first to third voltages as the clock signal, where the third voltage is lower than the first voltage and higher than the second voltage.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Young-Su Kim, Jae Hoon Lee, Duc-Han Cho
  • ORGANIC LIGHT-EMITTING DIODE DISPLAY
    Publication number: 20140361958
    Abstract: An organic light-emitting diode display including: a display panel; a bezel on which the display panel is mounted; and a buffer disposed between a lower surface of the display panel and the bezel. The buffer includes a peripheral buffer and a central buffer that has a step-shaped structure. The peripheral buffer is disposed at first and second sides of the central buffer.
    Type: Application
    Filed: December 2, 2013
    Publication date: December 11, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dai-Han Cho, Sang-Hee Lee, Kwan-Young Han
  • Liquid crystal display having increased response speed, and device and method for modifying image signal to provide increased response speed
    Patent number: 8884860
    Abstract: A liquid crystal display includes an image signal modifier for generating a modified signal based on a first image signal of a first frame, a second image signal of a second frame, and a lookup table. A data driver converts the modified signal into a data voltage which is supplied to a pixel of the display. The lookup table stores a plurality of reference modified signals for a plurality of reference first image signals and a plurality of reference second image signals. The lookup table includes a first lookup table having a gray gap of the reference first image signals and a gray gap of the reference second image signals of x, and a second lookup table having a gray gap of the reference first image signals and a gray gap of the reference second image signals of y, where y is greater than x.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Woo-Young Lee, Jae-Won Jeong, Woo-Jin Jung, Kang-Hyun Kim, Duc-Han Cho, Su-Bin Park
  • ADHESIVE FOR POLARIZING PLATE, AND POLARIZING PLATE COMPRISING THE SAME
    Publication number: 20140302328
    Abstract: Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator.
    Type: Application
    Filed: June 23, 2014
    Publication date: October 9, 2014
    Inventors: Sae-Han CHO, Eun-Mi SEO, Boong-Goon JEONG, Kyun-Il RAH, Nam-Jeong LEE
  • Apparatus and method for measuring the temperature of a material
    Patent number: 8851749
    Abstract: An apparatus for measuring a temperature of a material includes a body unit disposed on an exit side of a heating furnace; a temperature measuring unit installed on the body unit and constructed to measure a temperature of a material which is extracted from the heating furnace; a foreign substance removing unit installed on the body unit and constructed to inject a fluid toward the material so as to remove foreign substances adhered to the material; and a moving unit installed on the body unit and constructed to move the temperature measuring unit.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: October 7, 2014
    Assignee: Hyundai Steel Company
    Inventors: Yong Kook Park, Hyuk Jin Song, Sung Hyuk Lim, Gap Soo Lim, Seung Han Cho
  • Liquid crystal display and driving method thereof
    Patent number: 8854350
    Abstract: Provided is a liquid crystal display for improving side visibility by calculating a representative value for image data and correcting at least one of a storage voltage Vcst, a reference voltage Vref, and a lookup table LUT according to the calculated representative value. Further, a histogram analysis block is formed inside or outside a signal controller and corrects at least one of the storage voltage Vcst, the reference voltage Vref, and the lookup table LUT based on the histogram analysis block.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: October 7, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Won Jeong, Su-Bin Park, Woo-Jin Jung, Woo-Young Lee, Kang-Hyun Kim, Duc-Han Cho
  • Driving apparatus and driving method of liquid crystal display
    Patent number: 8847931
    Abstract: A driving apparatus of a liquid crystal display includes a signal modification unit which modifies a signal based on a data signal input to the liquid crystal display, where the signal modification unit determines whether the data signal corresponds to an image to be displayed with a quality deterioration and outputs at least one of a first signal and a second signal, where the first signal is output when the signal modification unit determines the data signal corresponds to the image to be displayed with the quality deterioration, and where the second signal is output when the signal modification unit determines the data signal does not corresponds to the image to be displayed with the quality deterioration.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: September 30, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Won Jeong, Hoi Sik Moon, Woo-Jin Jung, Woo-Young Lee, Kang-Hyun Kim, Duc-Han Cho, Su-Bin Park
  • EMULSIFIED HYDROGEL COMPOSITION AND A PRODUCTION METHOD THEREFOR
    Publication number: 20140271596
    Abstract: The present invention relates to an emulsified hydrogel composition and to a production method therefor, wherein, by incorporating between 20 and 30 percent by weight of a gelling solution and an emulsion obtained by mixing between 45 and 60 percent by weight of an aqueous component and between 15 and 30 percent by weight of an oil component, it is possible to simultaneously provide the skin with an aqueous fraction and an oil fraction, and it is possible to enhance functionality due to the inclusion of a high content of a dermatologically active component dissolved in the oil component.
    Type: Application
    Filed: September 12, 2012
    Publication date: September 18, 2014
    Applicant: GENIC CO., LTD.
    Inventors: Sung Jang Kim, Hyong-ii Park, Jae Han Cho, Eun Kyoung Choi, Jae hoon Kwak, Jae Min Lim, Hyun Jun Lim, Jai Hyun Kim, Min Seok Kim, Jin A. Yang, Hyun Oh Yoo, Jong Chul Kim
  • POLARIZING PLATE
    Publication number: 20140240647
    Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as durability, water resistance, workability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring in the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.
    Type: Application
    Filed: February 25, 2014
    Publication date: August 28, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Eun Soo HUH, Ki Ok KWON, In Kyu PARK, Sung Soo YOON, Min Ki LEE, Sae Han CHO
  • POLARIZING PLATE
    Publication number: 20140204317
    Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.
    Type: Application
    Filed: March 19, 2014
    Publication date: July 24, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun Il Rah, Min Ki Lee, Sae Han Cho