Patents by Inventor In Jae Chung

In Jae Chung 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).

  • Nitride semiconductor light emitting device
    Patent number: 8274069
    Abstract: There is provided a nitride semiconductor light emitting device. A nitride semiconductor light emitting device according to an aspect of the invention may include: an n-type nitride semiconductor layer provided on a substrate; an active layer provided on the n-type nitride semiconductor layer, and including quantum barrier layers and quantum well layers; and a p-type nitride semiconductor layer provided on the active layer, wherein each of the quantum barrier layers includes a plurality of InxGa(1-x)N layers (0<x<1) and at least one AlyGa(1-y)N layer (0?y<1), and the AlyGa(1-y)N layer is stacked between the InxGa(1-x)N layers.
    Type: Grant
    Filed: December 12, 2008
    Date of Patent: September 25, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hun Jae Chung, Cheol Soo Sone, Sung Hwan Jang, Rak Jun Choi, Soo Min Lee
  • Photolithography systems and associated methods of overlay error correction
    Patent number: 8260449
    Abstract: Several embodiments of photolithography systems and associated methods of overlay error correction are disclosed herein. In one embodiment, a method for correcting overlay errors in a photolithography system includes measuring a plurality of first overlay errors that individually correspond to a microelectronic substrate in a first batch of microelectronic substrates. The method also includes determining a relationship between the first overlay errors and a first sequence of the microelectronic substrates in the first batch. The method further includes correcting a second overlay error of individual microelectronic substrates in a second batch based on a second sequence of the microelectronic substrates in the second batch and the determined relationship.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: September 4, 2012
    Assignee: Micron Technology, Inc.
    Inventor: Woong Jae Chung
  • Memory system, program method thereof, and computing system including the same
    Patent number: 8223544
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: July 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye
  • REFLECTIVE STRUCTURE AND DISPLAY APPARATUS EMPLOYING THE SAME
    Publication number: 20120169978
    Abstract: According to example embodiments, a reflective film includes a plurality of first concave-convex elements having a curved surface and a plurality of second concave-convex elements on the curved surface. The second concave-convex elements may be a smaller scale than a scale of the plurality of first concave-convex elements. The reflective structure may further include a color purity control element configured to reduce degradation of a color purity expressed by the reflective film. The color purity control element may be configured such that at least a complementary light with respect to a color light reflected by the reflective film travels in the same direction as the reflected color light.
    Type: Application
    Filed: January 3, 2012
    Publication date: July 5, 2012
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moon-Gyu HAN, Yong-Wan JIN, Jung H. SHIN, Kyung-Jae CHUNG
  • System and method for cache synchronization
    Patent number: 8214581
    Abstract: A system for cache synchronization includes a data managing unit and a storage medium. The data managing unit is configured to control storing of data of a buffer cache of the storage medium, in response to an event signal received from a host, by classifying the data of the buffer cache into random data and sequential data. The storage medium includes a first area and a second area, and is configured to store the random data and an address information map in the first area, and to store the sequential data in the second area.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: July 3, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-ho Jang, Woon-jae Chung, Joon-ho Lee
  • Patient Emergency Response System
    Publication number: 20120157795
    Abstract: An improved emergency response system is provided. The system includes a patient or subscriber location database having a schedule of patient or subscriber activities. In one implementation, an emergency services server detects when the patient or subscriber is having a possible medical event as indicated by medical physiologic data transmitted from a wireless communication device proximate the patient. A third party such as a technologist and/or doctor diagnoses the patient and determines whether treatment is required. If treatment is required, a phone located remotely from the patient is used to call an emergency services first responder from a public safety access point in the patient's location. The remotely located phone has an automatic location identification database record that is updated based on the patient's current location as indicate by the patient location database.
    Type: Application
    Filed: April 8, 2011
    Publication date: June 21, 2012
    Applicant: ROSS MEDICAL CORPORATION
    Inventors: Alexander Ross Chiu, Neil Adam Frederick, Eric Alan Frederick, Jimmy Young Jae Chung
  • Photolithography systems and associated methods of focus correction
    Patent number: 8203695
    Abstract: Several embodiments of photolithography systems and associated methods of focus correction are disclosed herein. In one embodiment, a method for characterizing focus errors in a photolithography system includes placing a microelectronic substrate onto a substrate support of the photolithography system. The microelectronic substrate is divided into a plurality of fields individually partitioned into a plurality of regions. The method also includes developing a raw focus error map that has a focus error corresponding to the individual regions of the plurality of fields and deriving at least one of an inter-field focus error map and an intra-field focus error map based on the raw focus error map. The inter-field focus error map has an inter-field focus error corresponding to the individual fields, and the intra-field focus error map has an intra-field focus error corresponding to the individual regions.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: June 19, 2012
    Assignee: Micron Technology, Inc.
    Inventor: Woong Jae Chung
  • Apparatus and method for controlling picture quality of flat panel display
    Patent number: 8189017
    Abstract: An apparatus and method for controlling picture quality of a flat panel display. The apparatus for controlling picture quality of the flat panel display includes a position determining unit which determines a display position of digital video data; a gray-level determining unit which determines a gray-level value of the digital video data; and a frame rate control unit that disperses a plurality of dither patterns determined by a compensation value for compensating for brightness in a boundary between the panel defect region and the non-defect region during a plurality of frame periods and controls data, which will be displayed in the boundary, by the compensation value, if the digital video data is determined to the data which will be displayed in the boundary between the panel defect region and the non-defect region according to the determined result of the position determining unit.
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: May 29, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: In Jae Chung, Ji Kyoung Kim, Jong Hee Hwang
  • DISPLAY SUBSTRATE, DISPLAY DEVICE, AND METHOD OF MANUFACTURING THE DISPLAY SUBSTRATE
    Publication number: 20120113346
    Abstract: Provided are a display substrate, a display device, and a method of manufacturing the display substrate. The display substrate includes: a substrate in which a pixel region is defined; a gate electrode and a gate pad are formed on the substrate; a gate insulating layer formed on the gate electrode and the gate pad; a buffer layer pattern overlaps the gate electrode and is formed on the gate insulating layer; an insulating film pattern formed on the buffer layer pattern; an oxide semiconductor pattern formed on the insulating film pattern; a source electrode formed on the oxide semiconductor pattern; and a drain electrode formed on the oxide semiconductor pattern and is separated from the source electrode.
    Type: Application
    Filed: October 19, 2011
    Publication date: May 10, 2012
    Inventors: Seung-Ha CHOI, Kyoung-Jae Chung, Woo-Geun Lee
  • Flat panel display device and method of controlling picture quality of flat panel display device
    Patent number: 8164604
    Abstract: A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.
    Type: Grant
    Filed: December 11, 2006
    Date of Patent: April 24, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Deuk-Su Lee, Jong Hee Hwang
  • Method of reading nonvolatile memory device and nonvolatile memory device for implementing the method
    Patent number: 8154919
    Abstract: A nonvolatile memory device includes a read margin critical value calculation unit configured to calculate a critical value of a read margin between a read voltage and a threshold voltage of a specific cell, an interference value calculation unit configured to calculate an interference value affecting the threshold voltage of the specific cell, a comparison unit configured to compare the critical value and the interference value and to output a result of the comparison, and a data selection unit configured to output either first data, read from the specific cell using a first read voltage, or second data, read from the specific cell using a second read voltage, based on the result outputted from the comparison unit.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: April 10, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sang Kyu Lee, Seung Jae Chung
  • GRAPHENE LIGHT-EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120068152
    Abstract: A graphene light-emitting device and a method of manufacturing the same are provided. The graphene light-emitting device includes a p-type graphene doped with a p-type dopant; an n-type graphene doped with an n-type dopant; and an active graphene that is disposed between the type graphene and the n-type graphene and emits light, wherein the p-type graphene, the n-type graphene, and the active graphene are horizontally disposed.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Sung-won HWANG, Geun-woo KO, Sung-hyun SIM, Hun-jae CHUNG, Han-kyu SEONG, Cheol-soo SONE, Jin-hyun LEE, Hyung-duk KO, Suk-ho CHOI, Sung KIM
  • GROUP III NITRIDE NANOROD LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THEREOF
    Publication number: 20120068153
    Abstract: A group III nitride nanorod light emitting device and a method of manufacturing thereof. The method includes preparing a substrate, forming an insulating film including one or more openings exposing parts of the substrate on the substrate, growing first conductive group III nitride nanorod seed layers on the substrate exposed through the openings by supplying a group III source gas and a nitrogen (N) source gas thereto, growing first conductive group III nitride nanorods on the first conductive group III nitride nanorod seed layers by supplying the group III source gas and an impurity source gas in a pulse mode and continuously supplying the N source gas, forming an active layer on a surface of each of the first conductive group III nitride nanorods, and forming a second conductive nitride semiconductor layer on the active layer.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 22, 2012
    Inventors: Han Kyu Seong, Hun Jae Chung, Jung Ja Yang, Cheol Soo Sone
  • GRAPHENE QUANTUM DOT LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120068154
    Abstract: A graphene quantum dot light emitting device includes: a first graphene; a graphene quantum dot layer disposed on the first graphene and including a plurality of graphene quantum dots; and a second graphene disposed on the graphene quantum dot layer. A method of manufacturing a graphene quantum dot light emitting device includes: forming a first graphene doped with a first dopant; forming a graphene quantum dot layer including a plurality of graphene quantum dots on the first graphene; and forming a second graphene doped with a second dopant on the graphene quantum dot layer.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Sung-won HWANG, Geun-woo KO, Sung-hyun SIM, Hun-jae CHUNG, Cheol-soo SONE, Jin-hyun LEE, Byung-hee HONG, Su-kang BAE
  • GROUP III NITRIDE NANOROD LIGHT EMITTING DEVICE AND METHOD OF MANUFACTURING THEREOF
    Publication number: 20120061641
    Abstract: There are disclosed a group III nitride nanorod light emitting device and a method of manufacturing thereof. The group III nitride nanorod light emitting device includes a substrate, an insulating film formed on the substrate, and including a plurality of openings exposing parts of the substrate and having different diameters, and first conductive group III nitride nanorods having different diameters, respectively formed in the plurality of openings, wherein each of the first conductive group III nitride nanorods has an active layer and a second conductive semiconductor layer sequentially formed on a surface thereof.
    Type: Application
    Filed: September 13, 2011
    Publication date: March 15, 2012
    Inventors: Han Kyu Seong, Hun Jae Chung, Jung Ja Yang, Cheol Soo Sone
  • DISPLAY SUBSTRATE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120037911
    Abstract: A display substrate includes a gate wire formed on an insulating substrate, a semiconductor pattern formed on the gate wire and containing a metal oxynitride compound, and a data wire formed on the semiconductor pattern to cross the gate wire. The semiconductor pattern has a carrier number density ranging from 1016/cm3 to 1019/cm3.
    Type: Application
    Filed: August 8, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ki-Won Kim, Kyoung-Jae Chung, Hye-Young Ryu, Young-Joo Choi, Seung-Ha Choi, Kap-Soo Yoon
  • THIN FILM TRANSISTOR ARRAY SUBSTRATE AND METHOD OF FABRICATING THE SAME
    Publication number: 20120037906
    Abstract: A thin film transistor array substrate capable of reducing degradation of a device due to degradation of an oxide semiconductor pattern and a method of fabricating the same are provided. The thin film transistor array substrate may include an insulating substrate on which a gate electrode is formed, a gate insulating film formed on the insulating substrate, an oxide semiconductor pattern disposed on the gate insulating film, an anti-etching pattern formed on the oxide semiconductor pattern, and a source electrode and a drain electrode formed on the anti-etching pattern. The oxide semiconductor pattern may include an edge portion positioned between the source electrode and the drain electrode, and the edge portion may include at least one conductive region and at least one non-conductive region.
    Type: Application
    Filed: May 24, 2011
    Publication date: February 16, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hye-Young RYU, Woo-Geun LEE, Young-Joo CHOI, Kyoung-Jae CHUNG, Jin-Won LEE, Seung-Ha CHOI, Hee-Jun BYEON, Pil-Sang YUN
  • Organic electroluminescent display device and method of fabricating the same
    Patent number: 8110418
    Abstract: An organic electroluminescent display device includes a substrate, gate and data lines on the substrate and crossing each other to define a pixel region, a switching element at each crossing point of the gate and data lines, a driving element coupled to the switching element, a field control electrode coupled to the driving element and overlapping a channel of the driving element, and an organic electroluminescent diode coupled to the driving element.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: February 7, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: In-Jae Chung, Ki-Yong Kim, Chang-Wook Han, Kwang-Jo Hwang
  • Display having infrared edge illumination and multi-touch sensing function
    Patent number: 8102378
    Abstract: A touch-sensing display screen includes an upper transparent substrate, a lower substrate opposite the upper substrate and an infrared light source configured to illuminate a portion of the upper transparent substrate. A light converting layer is disposed between the upper and lower substrate and is configured to convert the infrared light received by the upper transparent substrate to visible light. A pixel thin-film transistor on the lower substrate is configured to activate a pixel electrode, and a light-sensing thin-film transistor is configured to sense the visible light provided by the light converting layer. A light-sense signal is output in response to activation of the light-sensing thin-film transistor.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: January 24, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: In Jae Chung, In Ho Ahn, Seong Ho Baik, Sang Hyuck Bae
  • MEMORY SYSTEM, PROGRAM METHOD THEREOF, AND COMPUTING SYSTEM INCLUDING THE SAME
    Publication number: 20110314207
    Abstract: Disclosed is a memory system and a method of programming a multi-bit flash memory device which includes memory cells configured to store multi-bit data, where the method includes and the system is configured for determining whether data to be stored in a selected memory cell is an LSB data; and if data to be stored in a selected memory cell is not an LSB data, backing up lower data stored in the selected memory cell to a backup memory block of the multi-bit flash memory device.
    Type: Application
    Filed: August 29, 2011
    Publication date: December 22, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun-Ho Jang, In-Hwan Choi, Woon-Jae Chung, Song-Ho Yoon, Kyung-Wook Ye