Patents by Inventor Ho Choo

Ho Choo 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).

  • Publication number: 20180114082
    Abstract: A method for selecting an image for object recognition is provided. The method comprises receiving an image bitstream; acquiring predetermined first codec metadata information among codec metadata information from the received image bitstream; calculating a first quality measurement value using the acquired first codec metadata information; calculating a quality score of the image by using the calculated first quality measurement value; and selecting a predetermined number of images based on the calculated quality score of the image.
    Type: Application
    Filed: October 24, 2017
    Publication date: April 26, 2018
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Jung Ah CHOI, Jin Ho CHOO, Jong Hang KIM, Jeong Seon YI, Ji Hoon KIM
  • Patent number: 9950310
    Abstract: The present invention relates to a preparation method of a granular oxide adsorbent for water treatment in which a metal oxide is bound to the surface of polymer particles, and more specially, to a preparation method of a granular oxide adsorbent, comprising the following steps: putting polymer particles in an acidic solution; adding polymer particles to a metal oxide aqueous solution and adjusting a pH; and washing and drying the obtained product. Accordingly, a granular oxide adsorbent prepared by the preparation method is provided and is utilized in water treatment and the like.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: April 24, 2018
    Assignee: Kyungpook National University Industry-Academic Cooperation Foundation
    Inventor: Kwang-Ho Choo
  • Patent number: 9918363
    Abstract: A light emitting diode (LED) lighting device includes a circuit for receiving an input power from a power source and outputting a rectified power, an LED unit including a plurality of LED channels connected in series, each LED channel having a front end and a rear end, a current sensing resistor, and a switch circuit unit. The switch circuit unit includes a plurality of switches, and an Nth switch is connected to the rear end of an Nth LED channel so as to control an operation of the nth LED channel, and is controlled by a sum of a current of the Nth switch and a current of an (N+1)th switch, which flows through the current sensing resistor. Forward voltages of the LED channels are unevenly redistributed so as to keep power consumption between the Nth switch and the (N+1)th switch substantially same, and N is a positive integer.
    Type: Grant
    Filed: August 24, 2016
    Date of Patent: March 13, 2018
    Assignee: LUMENS CO., LTD.
    Inventors: Myeong-Kook Gong, Kyung Ho Yoo, Kil Ho Choo, Jong Il Kim, Young June Lee, Seung Jong Han, Yong-Wook Cho
  • Publication number: 20180027617
    Abstract: A light emitting diode (LED) lighting device includes a circuit for receiving an input power from a power source and outputting a rectified power, an LED unit including a plurality of LED channels connected in series, each LED channel having a front end and a rear end, a current sensing resistor, and a switch circuit unit. The switch circuit unit includes a plurality of switches, and an Nth switch is connected to the rear end of an Nth LED channel so as to control an operation of the nth LED channel, and is controlled by a sum of a current of the Nth switch and a current of an (N+1)th switch, which flows through the current sensing resistor. Forward voltages of the LED channels are unevenly redistributed so as to keep power consumption between the Nth switch and the (N+1)th switch substantially same, and N is a positive integer.
    Type: Application
    Filed: September 30, 2017
    Publication date: January 25, 2018
    Applicant: LUMENS CO., LTD.
    Inventors: Myeong-Kook GONG, Kyung Ho YOO, Kil Ho CHOO, Jong Il KIM, Young June LEE, Seung Jong HAN, Yong-Wook CHO
  • Patent number: 9865778
    Abstract: A light-emitting device discloses a light emitting structure layer including an active layer between first and second conductive semiconductor layers, a first electrode electrically connected to the first conductive semiconductor layer, a contact layer disposed under the second conductive semiconductor layer, a reflective layer disposed under the contact layer, a capping layer disposed under the reflective layer, and a conductive supporting member disposed under the capping layer. The reflective layer comprises a thickness that is greater than the thickness of the second conductive semiconductor layer and 90 or more times greater than the thickness of the contact layer.
    Type: Grant
    Filed: April 2, 2015
    Date of Patent: January 9, 2018
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Woong Sun Yum, Ji Hyun Koo, Hyun Ju Kim, Kyung Wook Park, Sung Ho Choo
  • Patent number: 9837577
    Abstract: A light emitting device includes a substrate, a plurality of light emitting cells disposed on the substrate to be spaced apart from each other, and a connection wire electrically connecting adjacent ones of the light emitting cells. A first separation distance between first adjacent light emitting cells that are not connected by the connection wire among the light emitting cells is smaller than a second separation distance between second adjacent light emitting cells connected by the connection wire among the light emitting cells.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: December 5, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sung Kyoon Kim, Young Bong Yoo, Sung Ho Choo
  • Patent number: 9833473
    Abstract: Provided are the tolerogenic dendritic cells for treating a myocardial infarction and a method for preparing the same, and more particularly, the tolerogenic dendritic cells for treating a myocardial infarction, which can treat cardiac insufficiency that occurs by excessive remodeling of left ventricle in the heart muscle recovery process after an acute myocardial infarction, and a method for preparing the tolergenic dendritic cells. According to the present invention, the inflammatory reaction and the excessive remodeling of left ventricle in the heart muscle recovery process after a myocardial infarction can be inhibited, and thus, the incidence rate of cardiac insufficiency can be significantly reduced, thereby being effectively used for treating a myocardial infarction.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: December 5, 2017
    Assignee: THE CATHOLIC UNIVERSITY OF KOREA INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ki-Yuk Chang, Eun-Ho Choo, Hyo-Eun Park, Eun-Hye Park, Dae-Seog Lim, Jun-Ho Lee
  • Patent number: 9812626
    Abstract: A light emitting device includes a substrate, a plurality of light emitting cells disposed on the substrate to be spaced apart from each other, and a connection wire electrically connecting adjacent ones of the light emitting cells. One of the adjacent light emitting cells includes a plurality of first segments, and the other of the adjacent light emitting cells includes a plurality of second segments respectively facing the first segments. A separation distance is provided between first and second segments facing each other, where each of which has an end contacting the connection wire is greater than a separation distance between first and second segments facing each other, and each of which has an end that does not contact the connection wire.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: November 7, 2017
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sung Kyoon Kim, Young Bong Yoo, Sung Ho Choo
  • Publication number: 20170125638
    Abstract: A light-emitting device discloses a light emitting structure layer including an active layer between first and second conductive semiconductor layers, a first electrode electrically connected to the first conductive semiconductor layer, a contact layer disposed under the second conductive semiconductor layer, a reflective layer disposed under the contact layer, a capping layer disposed under the reflective layer, and a conductive supporting member disposed under the capping layer. The reflective layer comprises a thickness that is greater than the thickness of the second conductive semiconductor layer and 90 or more times greater than the thickness of the contact layer.
    Type: Application
    Filed: April 2, 2015
    Publication date: May 4, 2017
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Woong Sun YUM, Ji Hyun KOO, Hyun Ju KIM, Kyung Wook PARK, Sung Ho CHOO
  • Publication number: 20170127088
    Abstract: Disclosed is a method for reducing noise. The method comprises decoding a bitstream encoded with a first codec, acquiring Quantization Parameter (QP) values determined in a process of encoding the bitstream with the first codec, detecting a frame with noise by using the QP values and inputting the frame with noise to a predefined noise filter.
    Type: Application
    Filed: April 11, 2016
    Publication date: May 4, 2017
    Applicant: SAMSUNG SDS CO., LTD.
    Inventors: Jung-Ah CHOI, Jin-Ho CHOO, Bo-Youn KIM, Young-Min SHIN, Seong-Jong HA, Jeong-Seon YI, Yeon-Hee KWON, Sun-Ah KANG
  • Patent number: 9620682
    Abstract: A light emitting device includes a light emitting structure having a plurality of light emitting regions including a first semiconductor layer, an active layer, a second semiconductor layer, a first electrode in one of the light emitting regions, a second electrode in another of the light emitting regions, and at least one connection electrode to sequentially connect the light emitting regions in series. The light emitting regions connected in series are divided into 1st to ith light emitting region groups. Areas of light emitting regions that belong to different groups are different. An area of a light emitting region which is more frequently used among the plurality of light emitting regions is larger than an area of a light emitting region which is less frequently used among the plurality of light emitting regions.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: April 11, 2017
    Assignee: LG Innotek Co., Ltd.
    Inventors: Sung Kyoon Kim, Yun Kyung Oh, Sung Ho Choo
  • Publication number: 20160381743
    Abstract: A light emitting diode (LED) lighting device includes a circuit for receiving an input power from a power source and outputting a rectified power, an LED unit including a plurality of LED channels connected in series, each LED channel having a front end and a rear end, a current sensing resistor, and a switch circuit unit. The switch circuit unit includes a plurality of switches, and an Nth switch is connected to the rear end of an Nth LED channel so as to control an operation of the nth LED channel, and is controlled by a sum of a current of the Nth switch and a current of an (N+1)th switch, which flows through the current sensing resistor. Forward voltages of the LED channels are unevenly redistributed so as to keep power consumption between the Nth switch and the (N+1)th switch substantially same, and N is a positive integer.
    Type: Application
    Filed: August 24, 2016
    Publication date: December 29, 2016
    Applicant: LUMENS CO., LTD.
    Inventors: Myeong-Kook GONG, Kyung Ho YOO, Kil Ho CHOO, Jong Il KIM, Young June LEE, Seung Jong HAN, Yong-Wook CHO
  • Patent number: 9491825
    Abstract: An LED lighting device comprises: a rectification circuit unit for receiving input power from a power source unit and outputting a rectified power; an LED unit having a plurality of LED channels connected in series and a resistor unit connected to the last end of the LED channels; a current sensing resistor; and a switch circuit unit comprising a plurality of switches, wherein an nth switch is connected to the rear end of an nth LED channel so as to control an operation of the nth LED channel and is controlled by a sum of a current of the nth switch and a current of an (n+1)th switch, which flows through the current sensing resistor.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: November 8, 2016
    Assignee: LUMENS CO., LTD.
    Inventors: Myeong-Kook Gong, Kyung Ho Yoo, Yong-Wook Cho, Kil Ho Choo, Jong Il Kim, Young June Lee, Seung Jong Han
  • Publication number: 20160293819
    Abstract: A light emitting device includes a substrate, a plurality of light emitting cells disposed on the substrate to be spaced apart from each other, and a connection wire electrically connecting adjacent ones of the light emitting cells. One of the adjacent light emitting cells includes a plurality of first segments, and the other of the adjacent light emitting cells includes a plurality of second segments respectively facing the first segments. A separation distance is provided between first and second segments facing each other, where each of which has an end contacting the connection wire is greater than a separation distance between first and second segments facing each other, and each of which has an end that does not contact the connection wire.
    Type: Application
    Filed: June 20, 2016
    Publication date: October 6, 2016
    Inventors: Sung Kyoon KIM, Young Bong YOO, Sung Ho CHOO
  • Publication number: 20160233384
    Abstract: A light emitting device is disclosed. The light emitting device includes a light emitting structure including a first conductive-type semiconductor layer, an active layer, and a second conductive-type semiconductor layer, a light-transmissive conductive layer disposed on the second conductive-type semiconductor layer and having a plurality of open regions through which the second conductive-type semiconductor layer is exposed, and a second electrode disposed on the light-transmissive conductive layer so as to extend beyond at least one of the open regions, wherein the second electrode contacts the second conductive-type semiconductor layer in the open regions and contacts the light-transmissive conductive layer in regions excluding the open regions.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 11, 2016
    Inventors: Min Gyu NA, Sung Ho CHOO, Hyun Seoung JU, Gi Seok HONG, Ji Hee NO
  • Patent number: 9406844
    Abstract: Provided is a light emitting device. The light emitting device includes a light emitting structure layer comprising a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer. A first electrode is connected to the first conductive type semiconductor layer and includes first pad, plurality of first bridge portions and plurality of first contact portions. A current spreading layer is on a top surface of the second conductive type semiconductor layer. An insulation layer is on an upper surface of the first conductive type semiconductor layer and a top surface of the current spreading layer. A second electrode is on a top surface of the current spreading layer. The plurality of first bridge portions are extended from the first pad at an acute angle to each other.
    Type: Grant
    Filed: October 21, 2014
    Date of Patent: August 2, 2016
    Assignee: LG Innotek Co., Ltd.
    Inventors: Byeong Kyun Choi, Sung Kyoon Kim, Woo Sik Lim, Sung Ho Choo
  • Patent number: 9397259
    Abstract: A light emitting device includes a substrate, a plurality of light emitting cells disposed on the substrate to be spaced apart from each other, and a connection wire electrically connecting adjacent ones of the light emitting cells. One of the adjacent light emitting cells includes a plurality of first segments, and the other of the adjacent light emitting cells includes a plurality of second segments respectively facing the first segments. A separation distance is provided between first and second segments facing each other, where each of which has an end contacting the connection wire is greater than a separation distance between first and second segments facing each other, and each of which has an end that does not contact the connection wire.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: July 19, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Sung Kyoon Kim, Young Bong Yoo, Sung Ho Choo
  • Publication number: 20160199786
    Abstract: The present invention relates to a method for manufacturing separation membrane for water treatment, separation membrane manufactured thereby, and a water treatment method using the separation membrane. More specifically, the present invention relates to: a method for manufacturing separation membrane for water treatment, made of electrically conductive metal or non-metal materials, which can enhance the membrane performance by reducing membrane contamination during water treatment and replace separation membrane made of polymer materials; separation membrane manufactured thereby; and a water treatment method using the separation membrane.
    Type: Application
    Filed: April 16, 2014
    Publication date: July 14, 2016
    Inventor: Kwang Ho CHOO
  • Patent number: 9349919
    Abstract: Disclosed are a light emitting device. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, a first electrode disposed in an opening portion of the light emitting structure and contacted with a portion of the first conductive type semiconductor layer, an insulating layer covering the first electrode, a second electrode disposed connected to the second conductive type semiconductor layer and first electrode layer is connected to the second conductive type semiconductor layer and the second electrode. The first electrode layer is disposed on a top surface of the second conductive type semiconductor layer and a top surface of the insulating layer. The second electrode is not vertically overlapped with the first electrode.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: May 24, 2016
    Assignee: LG Innotek Co., Ltd.
    Inventors: Woo Sik Lim, Sung Ho Choo, Byeong Kyun Choi
  • Patent number: 9349920
    Abstract: A light emitting device is disclosed. The light emitting device includes a light emitting structure including a first conductive-type semiconductor layer, an active layer, and a second conductive-type semiconductor layer, a light-transmissive conductive layer disposed on the second conductive-type semiconductor layer and having a plurality of open regions through which the second conductive-type semiconductor layer is exposed, and a second electrode disposed on the light-transmissive conductive layer so as to extend beyond at least one of the open regions, wherein the second electrode contacts the second conductive-type semiconductor layer in the open regions and contacts the light-transmissive conductive layer in regions excluding the open regions.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: May 24, 2016
    Assignee: LG Innotek Co., Ltd.
    Inventors: Min Gyu Na, Sung Ho Choo, Hyun Seoung Ju, Gi Seok Hong, Ji Hee No