Patents by Inventor Chang-hoon Baek

Chang-hoon Baek 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).

  • Patent number: 11993056
    Abstract: The present invention provides a metal-plastic composite material having excellent adhesive strength and formability and a method for manufacturing the same, and specifically, the present invention provides a metal-plastic composite material and a method for manufacturing the same comprising: a metal layer; and a plastic layer on at least one surface of the metal layer, wherein a thin film layer formed of a silane coupling agent is provided between the metal layer and the plastic layer, and the metal layer and the plastic layer are bonded by covalent bonding with the silane coupling agent.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: May 28, 2024
    Assignee: POSCO
    Inventors: Hye-Jin Yoo, Chang-Se Byeon, Jung-Su Kim, Je-Hoon Baek, Hwi-Geon Kim
  • Patent number: 10764976
    Abstract: A lighting device includes an ultra-wideband (UWB) sensor module configured to detect movement, a light source module having a plurality of light emitting diodes (LEDs), and a driver configured to drive the plurality of LEDs, and a first controller connected to the light source module and the UWB sensor module, the first controller being configured to receive setting data from an external control device, output the setting data to the UWB sensor module to cause the UWB sensor module to set at least one operational parameter of the UWB sensor module, and output a control signal to the driver to cause the driver to drive the plurality of LEDs.
    Type: Grant
    Filed: August 6, 2018
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Seob Kim, Chang Hoon Baek
  • Publication number: 20190191521
    Abstract: A lighting device includes an ultra-wideband (UWB) sensor module configured to detect movement, a light source module having a plurality of light emitting diodes (LEDs), and a driver configured to drive the plurality of LEDs, and a first controller connected to the light source module and the UWB sensor module, the first controller being configured to receive setting data from an external control device, output the setting data to the UWB sensor module to cause the UWB sensor module to set at least one operational parameter of the UWB sensor module, and output a control signal to the driver to cause the driver to drive the plurality of LEDs.
    Type: Application
    Filed: August 6, 2018
    Publication date: June 20, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Chang Seob KIM, Chang Hoon BAEK
  • Publication number: 20180077782
    Abstract: A lighting system includes a plurality of lighting devices including a controller transmitting and receiving data by using near field communications (NFC) The lighting system further includes a control device that collects identification information for the plurality of respective lighting devices through the NFC communications before the plurality of lighting devices are installed. The control device also generates settings data to control the plurality of lighting devices, based on the identification information, and then transmits the generated settings data to the plurality of respective lighting devices.
    Type: Application
    Filed: November 17, 2017
    Publication date: March 15, 2018
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Seob KIM, Chang Hoon BAEK, Ho Chan CHO, Seung Kwan CHOI
  • Patent number: 9854650
    Abstract: A lighting system includes a plurality of lighting devices including a controller transmitting and receiving data by using near field communications (NFC) The lighting system further includes a control device that collects identification information for the plurality of respective lighting devices through the NFC communications before the plurality of lighting devices are installed. The control device also generates settings data to control the plurality of lighting devices, based on the identification information, and then transmits the generated settings data to the plurality of respective lighting devices.
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: December 26, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Seob Kim, Chang Hoon Baek, Ho Chan Cho, Seung Kwan Choi
  • Publication number: 20170171949
    Abstract: A lighting system includes a plurality of lighting devices including a controller transmitting and receiving data by using near field communications (NFC) The lighting system further includes a control device that collects identification information for the plurality of respective lighting devices through the NFC communications before the plurality of lighting devices are installed. The control device also generates settings data to control the plurality of lighting devices, based on the identification information, and then transmits the generated settings data to the plurality of respective lighting devices.
    Type: Application
    Filed: August 4, 2016
    Publication date: June 15, 2017
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Seob KIM, Chang Hoon BAEK, Ho Chan CHO, Seung Kwan CHOI
  • Publication number: 20170127497
    Abstract: A lighting system includes a sensor unit having at least one sensor, a lighting unit having at least one light emitting diode (LED) and a driver driving the plurality of LEDs, and a control device connected to the driver and the plurality of sensors to communicate therewith. The control device is to store operational information of the driver and information obtained by the plurality of sensors every predetermined period, in which, when a certain event occurs, the control device stores operational information of the driver and information obtained by the plurality of sensors at a time when the event occurs.
    Type: Application
    Filed: July 25, 2016
    Publication date: May 4, 2017
    Inventors: Chang Hoon BAEK, Kil Yoan CHUNG
  • Patent number: 9432028
    Abstract: A clock data recovery circuit including: a digital phase detector and deserializer configured to sample serial data using a recovery clock signal to generate an up phase error signal and a down phase error signal which correspond to a phase difference between the serial data and the recovery clock signal; a digital loop filter configured to generate an up fine code and a down fine code based on a result of counting the up and down phase error signals; a loop combiner configured to generate an up fine tuning code and a down fine tuning code by using the up and down phase error signals and the up and down fine codes; and a digitally controlled oscillator configured to generate the recovery clock signal having a frequency changed with the up and down fine tuning codes.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: August 30, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Jin Kim, Chang Hoon Baek, Sang Kyu Lee, Jae Youl Lee
  • Publication number: 20150358024
    Abstract: A clock data recovery circuit including: a digital phase detector and deserializer configured to sample serial data using a recovery clock signal to generate an up phase error signal and a down phase error signal which correspond to a phase difference between the serial data and the recovery clock signal; a digital loop filter configured to generate an up fine code and a down fine code based on a result of counting the up and down phase error signals; a loop combiner configured to generate an up fine tuning code and a down fine tuning code by using the up and down phase error signals and the up and down fine codes; and a digitally controlled oscillator configured to generate the recovery clock signal having a frequency changed with the up and down fine tuning codes.
    Type: Application
    Filed: May 19, 2015
    Publication date: December 10, 2015
    Inventors: Tae Jin KIM, Chang Hoon Baek, Sang Kyu Lee, Jae Youl Lee
  • Patent number: 9028086
    Abstract: There is provided a light source for an illumination apparatus and a method of manufacturing the same. The light source includes a light emitting device; a power unit module supplying an electrical signal to the light emitting device; a support unit having the light emitting device thereon and discharging heat generated by the light emitting device to the outside; and a housing unit covering and protecting the light emitting device, the power unit module and the support unit. The light emitting device is disposed to have a height greater than that of a contact region between the power unit module and the housing unit with relation to a lower edge of the housing unit.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yun Seok Woo, Won Hoe Koo, Jin Woo Bae, Wuk Chul Joung, Chang Hoon Baek
  • Patent number: 9007289
    Abstract: A liquid crystal display includes a first gate line; a common voltage line separated from the first gate line; a data line insulated from and crossing the first gate line and the common voltage line; a first switching element connected to the first gate line and the data line; a second switching element connected to the first gate line and the data line; a first liquid crystal capacitor connected to the first switching element; a second liquid crystal capacitor connected to the second switching element; a third switching element connected to the first switching element; an assistance capacitor connected to the third switching element and the common voltage line; and a shielding electrode extending in the same direction as the first gate line and connected to the first switching element.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 14, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong-Young Lee, Ji-Sun Kim, Sung-Hoon Kim, Si Hyun Ahn, Chang hoon Baek, Chong-Chul Chai
  • Publication number: 20140068507
    Abstract: An apparatus and a method edit an image in a portable terminal, with the method including displaying one or more icons indicating stylus pen functions; when a highlighter icon corresponding to a highlighter function is selected among the displayed icons, displaying a text selected by a stylus pen in an image in a preset fluorescent color; and storing the displayed text in accordance with the fluorescent color.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicants: Seoul National University R&DB Foundation, Samsung Electronics Co., Ltd.
    Inventors: Hoon-Gon NAM, Myung-Soo KIM, Hyun-Joon KIM, Yong-Woon PARK, Chul-Woo YANG, Jee-Man LEE, Chang-Hoon BAEK
  • Patent number: 8511857
    Abstract: A light source includes first to nth light emitting modules (n is a natural number that is two or more than two) each having a plurality of light emitting elements and connectors that are electrically connected to the light emitting elements. The connector of the first light emitting module is disposed near an angular point (hereinafter, referred to as “rotational central point”) of a region defining the first light emitting module. The light emitting elements and connector of the ith light emitting module has a layout structure defined by a clockwise or counter-clockwise rotation of the light emitting elements and connectors of the first light emitting module by an angle (i?1)/n×360° about the rotational central point, wherein i is a natural number which satisfies 2?i?n.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: August 20, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyeong Won Yun, Joong El Ghim, Won Gi Lee, Chang Hoon Baek, Kil Yoan Chung
  • Publication number: 20120307482
    Abstract: A light source includes first to nth light emitting modules (n is a natural number that is two or more than two) each having a plurality of light emitting elements and connectors that are electrically connected to the light emitting elements. The connector of the first light emitting module is disposed near an angular point (hereinafter, referred to as “rotational central point”) of a region defining the first light emitting module. The light emitting elements and connector of the ith light emitting module has a layout structure defined by a clockwise or counter-clockwise rotation of the light emitting elements and connectors of the first light emitting module by an angle (i?1)/n×360° about the rotational central point, wherein i is a natural number which satisfies 2?i?n.
    Type: Application
    Filed: August 16, 2012
    Publication date: December 6, 2012
    Inventors: Hyeong Won YUN, Joong B. Ghim, Won Gi Lee, Chang Hoon Baek, Kii Yoan Chung
  • Publication number: 20120140442
    Abstract: There is provided a light source for an illumination apparatus and a method of manufacturing the same. The light source includes a light emitting device; a power unit module supplying an electrical signal to the light emitting device; a support unit having the light emitting device thereon and discharging heat generated by the light emitting device to the outside; and a housing unit covering and protecting the light emitting device, the power unit module and the support unit. The light emitting device is disposed to have a height greater than that of a contact region between the power unit module and the housing unit with relation to a lower edge of the housing unit.
    Type: Application
    Filed: December 2, 2011
    Publication date: June 7, 2012
    Inventors: Yun Seok WOO, Won Hoe KOO, Jin Woo Bae, Wuk Chul JOUNG, Chang Hoon BAEK
  • Publication number: 20120086685
    Abstract: A liquid crystal display includes a first gate line; a common voltage line separated from the first gate line; a data line insulated from and crossing the first gate line and the common voltage line; a first switching element connected to the first gate line and the data line; a second switching element connected to the first gate line and the data line; a first liquid crystal capacitor connected to the first switching element; a second liquid crystal capacitor connected to the second switching element; a third switching element connected to the first switching element; an assistance capacitor connected to the third switching element and the common voltage line; and a shielding electrode extending in the same direction as the first gate line and connected to the first switching element.
    Type: Application
    Filed: April 7, 2011
    Publication date: April 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Seong-Young LEE, Ji-Sun KIM, Sung-Hoon KIM, Si Hyun AHN, Chang hoon BAEK, Chong-Chul CHAI
  • Patent number: 8132518
    Abstract: A substantially vertical lift system is disclosed herein. The substantially vertical lift system is comprised of a platform, base, and a lifting mechanism. The lifting mechanism is designed to displace the platform in a substantially linear manner, and if desired, in a position parallel to the base. Multiple lifting mechanisms may be used, and displaced either in a side-by-side or stacked orientation. The configuration of the lifting mechanism is implementation dependent.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: March 13, 2012
    Assignee: Siemens Medical Solutions USA, Inc.
    Inventors: Han-su Kim, Kyung-dong Lee, Chang-hoon Baek
  • Patent number: 7967460
    Abstract: A planar light source and a backlight unit including the same are disclosed. The planar light source includes a light emission region formed by arrangements of light emitting devices. The light emission region includes first to nth separate parts each having a center of the light emission region as one vertex (n: natural number of 2 or higher). The first separate part includes light emitting devices arranged two-dimensionally in first and second directions. A pitch in the first direction is different from a pitch in the second direction in at least a portion of the two-dimensional arrangement structure. Light emitting devices of each of the second to nth separate parts have an arrangement structure obtained by a clockwise or counter-clockwise rotation of the arrangement structure of the light emitting devices of the first separate part by an angle of 1/n×360° about the center of the light emission region.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 28, 2011
    Assignee: Samsung LED Co., Ltd.
    Inventors: Hyeong Won Yun, Won Ki Lee, Chang Hoon Baek, Kil Yoan Chung
  • Patent number: 7874715
    Abstract: A light emitting diode backlight (LED) unit includes: a substrate having a plurality of divided areas; a plurality of LEDs disposed on the substrate; and an LED driver supplying a drive power to the plurality of LEDs disposed in at least two of the plurality of divided areas, wherein at least a part of the plurality of LEDs disposed in one of the plurality of divided areas is electrically connected to each other.
    Type: Grant
    Filed: May 8, 2007
    Date of Patent: January 25, 2011
    Assignee: Samsung LED Co., Ltd.
    Inventors: Chang Hoon Baek, Sang Yun Lee
  • Patent number: 7723922
    Abstract: There is provided an integrated LED driving device including: a DC/DC converting part converting and outputting a DC voltage inputted from the outside by switching of a switch into a driving voltage of a magnitude suitable for driving a plurality of LED arrays; a constant current controlling part receiving at least one of information on the current flowing through the LED array and information on a voltage applied to the LED array by feed-back, the constant current controlling part including a PWM controller PWM-controlling a switching duty of the switch of the DC/DC converting part, and controlling a switching duty of each of the switches of the switching part to allow the current to flow through the LED array with a predetermined magnitude; and a control logic receiving a control signal by a user and controlling the PWM controller in response to the control signal.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: May 25, 2010
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Yun Lee, Chang Hoon Baek, Do Hun Kim, Hyung Suk Kim