Patents by Inventor Man Jung

Man Jung 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).

  • LED driving circuit for continuously driving LED, LED lighting device comprising same and driving method
    Patent number: 9585214
    Abstract: An exemplary embodiment discloses a light-emitting diode (LED) driving circuit including an LED driving module configured to provide a first driving voltage to an LED light emitting module including a first LED group to an n-th LED group, n is an integer which is equal to or larger than 2, and sequentially drive the first LED group to the n-th LED group depending on a voltage level of the first driving voltage and a second driving voltage providing module configured to store some of the first driving voltage and selectively provide a second driving voltage to some of the LED groups other than at least the first LED group to an m-th LED group among the LED groups in a Vfm compensation section, 1?m?n?1, according to a control of the LED driving module.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: February 28, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hye Man Jung, Hyun Gu Kang, Sang Wook Han
  • LED LUMINESCENCE APPARATUS
    Publication number: 20170041991
    Abstract: An LED luminescence apparatus is provided, which includes a rectifying unit rectifying an AC voltage and generating a rectified voltage; a plurality of LEDs connected in series to an output terminal of the rectifying unit; a plurality of switches having drain terminals connected to cathodes of the plurality of LEDs, respectively; and a switch control unit sensing current through a plurality of resistors connected to source terminals of the plurality of switches, respectively, comparing the sensed current with a set reference current, and outputting a voltage corresponding to a difference between the sensed current and the set reference current to a gate terminal of each of the plurality of switches.
    Type: Application
    Filed: October 18, 2016
    Publication date: February 9, 2017
    Inventors: Hye Man JUNG, Hyun Gu KANG, Snag Wook HAN, Young Do JUNG
  • LED lighting apparatus with improved flicker index
    Patent number: 9538599
    Abstract: A sequential driving type alternating current (AC) LED lighting apparatus includes a rectification unit connected to an alternating current (AC) power source and outputting a first rectified voltage as a first drive voltage to a light-emitting diode (LED) light-emitting unit through full-wave rectification of an AC voltage, and an LED drive controller configured to detect an LED drive current flowing through the LED light emitting unit or a constant current switch connected to the LED light emitting unit and configured to control sequential driving based on the detected LED drive current. The LED drive controller is configured to set an LED drive current in each of operation sections, such that a difference between light output of the LED light-emitting unit in each of the operation zones does not exceed a predetermined light output deviation.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: January 3, 2017
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Hye-man Jung
  • LED luminescence apparatus
    Patent number: 9516718
    Abstract: An LED luminescence apparatus is provided, which includes a rectifying unit rectifying an AC voltage and generating a rectified voltage; a plurality of LEDs connected in series to an output terminal of the rectifying unit; a plurality of switches having drain terminals connected to cathodes of the plurality of LEDs, respectively; and a switch control unit sensing current through a plurality of resistors connected to source terminals of the plurality of switches, respectively, comparing the sensed current with a set reference current, and outputting a voltage corresponding to a difference between the sensed current and the set reference current to a gate terminal of each of the plurality of switches.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: December 6, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hye Man Jung, Hyun Gu Kang, Snag Wook Han, Young Do Jung
  • BACKLIGHT DRIVING APPARATUS
    Publication number: 20160309558
    Abstract: A lighting apparatus includes a light-emitting diode (LED) array, a rectifying unit configured to rectify an alternating current (AC) voltage and to generate a driving voltage for the LED array, a switch control signal generation unit configured to generate a switching control signal depending on the driving voltage, the switching control signal including connection control signals and a compensation control signal, connection changing units configured to change a connection between the LEDs according to the connection control signals, and a light output compensation unit configured to generate a compensation voltage according to the compensation control signal, and selectively supply the compensation voltage to the LED array.
    Type: Application
    Filed: June 24, 2016
    Publication date: October 20, 2016
    Inventors: Hye Man JUNG, Hyun Gu Kang, Oh Seok Kim, Young Eun Yang
  • LED DRIVING APPARATUS AND DRIVING METHOD FOR CONTINUOUSLY DRIVING LED
    Publication number: 20160270168
    Abstract: A light-emitting diode (LED) driving apparatus includes a rectifying module configured to rectify an alternating current voltage and output a first driving voltage, an LED light emitting module including a first LED group, and a second LED group to an n-th LED group, and configured to receive the first driving voltage from the rectifying module, n being a positive integer of two or more, an LED driving module configured to sequentially drive the first LED group to the n-th LED group according to a voltage level of the first driving voltage, and a second driving voltage providing module connected in parallel to at least one LED group of the second LED group to the n-th LED group.
    Type: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventors: Hye Man JUNG, Hyun Gu KANG, Sang Wook HAN
  • LED driving circuit package
    Patent number: 9426857
    Abstract: An LED driving circuit package includes a rectification unit to receive an AC power voltage and rectify the AC power voltage to generate a ripple voltage, an LED driving switching unit including a plurality of switch units and a plurality of current control units. The LED driving circuit package further includes a low voltage control unit including a circuit power supply unit to generate low voltage power, a voltage detection unit to detect a magnitude of the ripple voltage, a reference frequency generation unit to generate a reference frequency, and a reference pulse generation unit to generate a reference pulse for controlling the operation of the LED driving switch unit according to the reference frequency and a magnitude of the voltage detected by the voltage detection unit.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: August 23, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Young Do Jong, Hyun Gu Kang, Hye Man Jung, Kang Nyung Lee
  • ILLUMINATION APPARATUS INCLUDING SEMICONDUCTOR LIGHT EMITTING DIODES
    Publication number: 20160234891
    Abstract: An illumination apparatus of a high efficiency light emitting element and a driving circuit of a light emitting element controlling a series and parallel connection relationship between light emitting groups according to a voltage level of a driving voltage and controlling a sequential driving of the light emitting groups at the same time.
    Type: Application
    Filed: April 20, 2016
    Publication date: August 11, 2016
    Inventor: Hye man JUNG
  • Multilayer ceramic capacitor, manufacturing method therefor, circuit board having multilayer ceramic capacitor embedded therein, and polishing device for multilayer ceramic capacitor
    Patent number: 9396878
    Abstract: There are provided multilayer ceramic capacitor, a manufacturing method therefor, a circuit board having a multilayer ceramic capacitor embedded therein, and a polishing device for a multilayer ceramic capacitor.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 19, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Deok Seok Oh, Eun Hyuk Chae, Jung Hyun Jeon, Jin Man Jung
  • Multilayer ceramic electronic part to be embedded in board and printed circuit board having multilayer ceramic electronic part embedded therein
    Patent number: 9390852
    Abstract: There is provided a multilayer ceramic electronic part to be embedded in a board, the multilayer ceramic electronic part including: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body; first and second external electrodes formed on the respective end portions of the ceramic body, and a third external electrode formed on first and second main surfaces of the ceramic body, wherein an outermost first internal electrode among the first internal electrodes is connected to the first and second external electrodes through at least one first via, and the second internal electrodes are connected to the third external electrode through at least one second via.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byoung Hwa Lee, Doo Young Kim, Hai Joon Lee, Jin Man Jung
  • Backlight driving apparatus
    Patent number: 9378701
    Abstract: A backlight driving apparatus that drives a backlight unit having a plurality of LEDs is provided, which includes a rectifying unit rectifying an AC voltage and generating a driving voltage for the plurality of LEDs, a plurality of connection changing units changing connection relations between the plurality of LEDs depending on a level of the driving voltage, and a light output compensation unit generating a compensation voltage using the driving voltage and selectively supplying the compensation voltage to the plurality of LEDs.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: June 28, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hye Man Jung, Hyun Gu Kang, Oh Seok Kim, Young Eun Yang
  • EMBEDDED DEVICE, AND PRINTED CIRCUIT BOARD HAVING THE SAME
    Publication number: 20160174380
    Abstract: An embedded device includes a multilayer body including dielectric layers and internal electrode layers interposed between adjacent dielectric layers; external electrodes disposed on external surfaces of the multilayer body to apply electric charges having different polarities to adjacent internal electrode layers, the external electrodes containing a conductive material; first copper layers disposed on external surfaces of the external electrodes to cover the external electrodes; and second copper layers disposed on the first copper layers to cover the first copper layers. An average particle diameter of powder particles of the first copper layers is greater than an average particle diameter of powder particles of the second copper layers.
    Type: Application
    Filed: October 22, 2015
    Publication date: June 16, 2016
    Inventors: Hye Seong KIM, Eun Sang NA, Jin Sung KIM, Ok Nam KIM, Tae Hyeok KIM, Jin Man JUNG
  • LED driving apparatus and driving method for continuously driving LED
    Patent number: 9357605
    Abstract: Disclosed herein are a light emitting diode (LED) driving apparatus and driving method for continuously driving an LED. According to the present invention, an LED driving apparatus and driving method for continuously driving an LED capable of compensating for a light output of an LED lighting using an energy chargeable and dischargeable element and/or circuit are proposed.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: May 31, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hye Man Jung, Hyun Gu Kang, Sang Wook Han
  • Illumination apparatus including semiconductor light emitting diodes
    Patent number: 9345085
    Abstract: An illumination apparatus of a high efficiency light emitting element and a driving circuit of a light emitting element controlling a series and parallel connection relationship between light emitting groups according to a voltage level of a driving voltage and controlling a sequential driving of the light emitting groups at the same time.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: May 17, 2016
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventor: Hye Man Jung
  • LED LIGHTING APPARATUS WITH IMPROVED FLICKER INDEX
    Publication number: 20160128153
    Abstract: A sequential driving type alternating current (AC) LED lighting apparatus includes a rectification unit connected to an alternating current (AC) power source and outputting a first rectified voltage as a first drive voltage to a light-emitting diode (LED) light-emitting unit through full-wave rectification of an AC voltage, and an LED drive controller configured to detect an LED drive current flowing through the LED light emitting unit or a constant current switch connected to the LED light emitting unit and configured to control sequential driving based on the detected LED drive current. The LED drive controller is configured to set an LED drive current in each of operation sections, such that a difference between light output of the LED light-emitting unit in each of the operation zones does not exceed a predetermined light output deviation.
    Type: Application
    Filed: December 1, 2014
    Publication date: May 5, 2016
    Inventor: Hye-man JUNG
  • Multilayer ceramic electronic component to be embedded in board and printed circuit board having multilayer ceramic electronic component embedded therein
    Patent number: 9324500
    Abstract: There is provided a multilayer ceramic electronic component to be embedded in a board including: a ceramic body including dielectric layers and having first and second main surfaces opposing one another, first and second lateral surfaces opposing one another, and first and second end surfaces opposing one another; first and second internal electrodes stacked to be spaced apart from both end surfaces of the ceramic body at a predetermined distance with the dielectric layers interposed therebetween, respectively; and first and second external electrodes formed in both end portions of the ceramic body, wherein the first and second external electrodes include first and second base electrodes and first and second terminal electrodes formed on the first and second base electrodes, respectively, and a non-conductive paste layer is formed on both lateral surfaces of the ceramic body.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hai Joon Lee, Jin Man Jung
  • LED DRIVING CIRCUIT USING DOUBLE BRIDGE DIODE AND LED ILLUMINATION DEVICE COMPRISING SAME
    Publication number: 20160050731
    Abstract: According to the present invention, provided is an LED driving circuit comprising: a first rectification module, connected to an alternating current power source, for full-wave rectifying an applied alternating current voltage and for supplying a first rectification voltage which has been full-wave rectified to an LED light emitting module as a first driving voltage; and a second driving voltage supply module, connected to the alternating current power source in parallel with the first rectification module, for full-wave rectifying an applied alternating current voltage to generate a second rectification voltage, for charging energy using the generated second rectification voltage at a charging section, and for supplying a second driving voltage to the LED light emitting module at a compensating section.
    Type: Application
    Filed: March 13, 2014
    Publication date: February 18, 2016
    Inventor: Hye Man JUNG
  • LED dimmer, LED lighting device comprising same, and method for controlling dimming of LED lighting device
    Patent number: 9220143
    Abstract: A light-emitting diode (LED) dimmer for an LED lighting device, including a power switch, a drive voltage supply, and a LED light-emitting unit. Operating zones of the LED lighting device are changed in accordance with the switching of the power switch, and a dimming level for a next operating zone is determined on the basis of the dimming level and time while the power switch was on during the previous operating period.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: December 22, 2015
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Hye Man Jung, Hyun Gu Kang, Jin Cheol Shin, Sang Wook Han
  • ILLUMINATION APPARATUS INCLUDING SEMICONDUCTOR LIGHT EMITTING DIODES
    Publication number: 20150334792
    Abstract: An illumination apparatus of a high efficiency light emitting element and a driving circuit of a light emitting element controlling a series and parallel connection relationship between light emitting groups according to a voltage level of a driving voltage and controlling a sequential driving of the light emitting groups at the same time.
    Type: Application
    Filed: July 28, 2015
    Publication date: November 19, 2015
    Inventor: Hye Man JUNG
  • LED LUMINESCENCE APPARATUS AND METHOD OF DRIVING THE SAME
    Publication number: 20150312977
    Abstract: A light-emitting diode (LED) driving circuit configured to drive LED units includes a rectification circuit unit to receive an alternating current (AC) power voltage and rectify the AC power voltage to output a unidirectional ripple voltage, a pulse-width modulation (PWM) signal generation unit to generate PWM decision signals. The PWM signal generation unit is configured to sequentially drive the LEDs according to the PWM decision signals.
    Type: Application
    Filed: June 25, 2015
    Publication date: October 29, 2015
    Inventors: Young Do JONG, Hyun Gu KANG, Hye Man JUNG, Kang Nyung LEE