Patents by Inventor Ki-Won Choi

Ki-Won Choi 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: 9603214
    Abstract: A light emitting device (LED) array module includes at least one terminal, a light emitting device (LED) array, and a rank storing device. The LED array includes a plurality of LEDs that emit light when a current is supplied from the outside of the LED array module. The rank storing device is configured to store rank information of the LED array that depends on brightness characteristics of the LEDs, and to output a signal corresponding to the rank information via the at least one terminal.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: March 21, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-pil Nam, Ki-won Choi
  • Publication number: 20160234903
    Abstract: A light emitting device (LED) array module includes at least one terminal, a light emitting device (LED) array, and a rank storing device. The LED array includes a plurality of LEDs that emit light when a current is supplied from the outside of the LED array module. The rank storing device is configured to store rank information of the LED array that depends on brightness characteristics of the LEDs, and to output a signal corresponding to the rank information via the at least one terminal.
    Type: Application
    Filed: April 21, 2016
    Publication date: August 11, 2016
    Inventors: Kyung-pil NAM, Ki-won CHOI
  • Patent number: 9326337
    Abstract: A light emitting device (LED) array module includes at least one terminal, a light emitting device (LED) array, and a rank storing device. The LED array includes a plurality of LEDs that emit light when a current is supplied from the outside of the LED array module. The rank storing device is configured to store rank information of the LED array that depends on brightness characteristics of the LEDs, and to output a signal corresponding to the rank information via the at least one terminal.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 26, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-Pil Nam, Ki-Won Choi
  • Patent number: 9265108
    Abstract: There is provided a light source apparatus including at least one light emitting diode (LED) string including at least one light emitting diode and at least one inductance unit generating an induced current according to a change in a current applied to the light emitting diode, a main switch controlling power applied to the LED string according to an on/off switching operation, and a capacitor charged with a voltage of the power applied to the LED string when the main switch is switched on and applying the charged voltage to the LED string when the main switch is switched off.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo Lee, Sun Ki Kim, Kyung Pil Nam, Sung Min Jang, Ki Won Choi
  • Publication number: 20160009216
    Abstract: A light source module may include a frame part having a plurality of mounting regions arranged to be positioned on different levels and a plurality of light emitting units detachably mounted on the plurality of mounting regions. Each of the plurality of light emitting units includes a base disposed on each mounting region, and a light emitting device disposed above the base and positioned spaced-apart from the mounting region so as to form a space through which air flows, between the mounting region and the light emitting device.
    Type: Application
    Filed: April 6, 2015
    Publication date: January 14, 2016
    Inventors: Jin Kwan SONG, Ki Won CHOI
  • Patent number: 9155146
    Abstract: There is provided a light source apparatus including at least one light emitting diode (LED) string including at least one light emitting diode and at least one inductance unit for generating an induced current according to a change in a current applied to the light emitting diode. A main switch controls power applied to the LED string according to an on/off switching operation A capacitor is charged with a voltage of the power applied to the LED string when the main switch is switched on, and applies the charged voltage to the LED string when the main switch is switched off.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo Lee, Sun Ki Kim, Kyung Pil Nam, Sung Min Jang, Ki Won Choi
  • Patent number: 8939636
    Abstract: A light source assembly includes a plurality of light source modules detachably connected to one another. Each light source module includes a frame part, an electrical connection part, and at least one light emitting device. The frame part includes a female coupling disposed in one side surface thereof and a male coupling disposed on another side surface thereof and configured to be engaged with a female coupling of another light source module of the plurality. The electrical connection part is disposed on an upper surface of the frame part and extends onto the one side surface having the female coupling disposed therein and onto the other side surface having the female coupling disposed thereon. The at least one light emitting device is mounted on the electrical connection part and disposed on the upper surface of the frame part.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: January 27, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki Won Choi, Yeon Woo Lee
  • Publication number: 20140225517
    Abstract: A light emitting device (LED) array module includes at least one terminal, a light emitting device (LED) array, and a rank storing device. The LED array includes a plurality of LEDs that emit light when a current is supplied from the outside of the LED array module. The rank storing device is configured to store rank information of the LED array that depends on brightness characteristics of the LEDs, and to output a signal corresponding to the rank information via the at least one terminal.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-pil NAM, Ki-won CHOI
  • Publication number: 20140218954
    Abstract: Provided is a light-emitting device package module including a light-emitting device; a first circuit board receiving the light-emitting device, and electrically connected with the light-emitting device; and a second circuit board assembled with the first circuit board by using a connection member, and electrically connected with the first circuit board.
    Type: Application
    Filed: December 2, 2013
    Publication date: August 7, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-jeong YOON, Ki-won CHOI
  • Publication number: 20140140062
    Abstract: A light source assembly includes a plurality of light source modules detachably connected to one another. Each light source module includes a frame part, an electrical connection part, and at least one light emitting device. The frame part includes a female coupling disposed in one side surface thereof and a male coupling disposed on another side surface thereof and configured to be engaged with a female coupling of another light source module of the plurality. The electrical connection part is disposed on an upper surface of the frame part and extends onto the one side surface having the female coupling disposed therein and onto the other side surface having the female coupling disposed thereon. The at least one light emitting device is mounted on the electrical connection part and disposed on the upper surface of the frame part.
    Type: Application
    Filed: July 12, 2013
    Publication date: May 22, 2014
    Inventors: Ki Won CHOI, Yeon Woo LEE
  • Publication number: 20140070714
    Abstract: There is provided a light source apparatus including at least one light emitting diode (LED) string including at least one light emitting diode and at least one inductance unit for generating an induced current according to a change in a current applied to the light emitting diode. A main switch controls power applied to the LED string according to an on/off switching operation A capacitor is charged with a voltage of the power applied to the LED string when the main switch is switched on, and applies the charged voltage to the LED string when the main switch is switched off.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo LEE, Sun Ki KIM, Kyung Pil NAM, Sung Min JANG, Ki Won CHOI
  • Publication number: 20140070712
    Abstract: There is provided a light source apparatus including at least one light emitting diode (LED) string including at least one light emitting diode and at least one inductance unit generating an induced current according to a change in a current applied to the light emitting diode, a main switch controlling power applied to the LED string according to an on/off switching operation, and a capacitor charged with a voltage of the power applied to the LED string when the main switch is switched on and applying the charged voltage to the LED string when the main switch is switched off.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 13, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo LEE, Sun Ki KIM, Kyung Pil NAM, Sung Min JANG, Ki Won CHOI
  • Publication number: 20120181569
    Abstract: A light-emitting device package including: a substrate including a first surface and a second surface; a light-emitting chip mounted on the first surface; and an electrode pad portion that is disposed on the second surface and electrically connects the light-emitting chip to an external device, wherein the electrode pad portion has a shape with rotational symmetry with respect to a predetermined angle when a normal line running through a center of the second surface is used as a rotation axis.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 19, 2012
    Inventor: Ki-won Choi
  • Publication number: 20120085383
    Abstract: A solar cell module having a reduced thickness using a flip-chip approach includes a transparent substrate, a transparent electrode interconnection disposed on the transparent substrate, and a plurality of solar cells disposed on the transparent electrode interconnection, each solar cell having at least one protrusion formed on one surface of the solar cell, the protrusion being bonded to the transparent electrode interconnection.
    Type: Application
    Filed: June 14, 2011
    Publication date: April 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Sang Cho, So-Young Lim, Tae-Hong Min, Ki-Won Choi
  • Patent number: 8084359
    Abstract: A semiconductor package includes a semiconductor chip having first and second pads, a first insulation layer pattern formed on the semiconductor chip and having first and second openings that expose the first and the second pads, respectively, a first conductive layer pattern elongated along the first insulation layer pattern from the first pad, a first external terminal formed on the first conductive layer pattern, a second insulation layer pattern formed on the first conductive layer pattern and the first insulation layer pattern to expose the first external terminal and having a third opening in communication with the second opening, a second conductive layer pattern elongated along the second insulation layer pattern from the second pad, and a second external terminal formed on the second conductive layer pattern.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: December 27, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Ho You, Ki-Won Choi, Eun-Seok Song
  • Publication number: 20100167423
    Abstract: A semiconductor package includes a semiconductor chip having first and second pads, a first insulation layer pattern formed on the semiconductor chip and having first and second openings that expose the first and the second pads, respectively, a first conductive layer pattern elongated along the first insulation layer pattern from the first pad, a first external terminal formed on the first conductive layer pattern, a second insulation layer pattern formed on the first conductive layer pattern and the first insulation layer pattern to expose the first external terminal and having a third opening in communication with the second opening, a second conductive layer pattern elongated along the second insulation layer pattern from the second pad, and a second external terminal formed on the second conductive layer pattern.
    Type: Application
    Filed: February 12, 2010
    Publication date: July 1, 2010
    Inventors: Se-Ho You, Ki-Won Choi, Eun-Seok Song
  • Publication number: 20080099885
    Abstract: A semiconductor package includes a semiconductor chip having first and second pads, a first insulation layer pattern formed on the semiconductor chip and having first and second openings that expose the first and the second pads, respectively, a first conductive layer pattern elongated along the first insulation layer pattern from the first pad, a first external terminal formed on the first conductive layer pattern, a second insulation layer pattern formed on the first conductive layer pattern and the first insulation layer pattern to expose the first external terminal and having a third opening in communication with the second opening, a second conductive layer pattern elongated along the second insulation layer pattern from the second pad, and a second external terminal formed on the second conductive layer pattern.
    Type: Application
    Filed: October 23, 2007
    Publication date: May 1, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se-Ho YOU, Ki-Won CHOI, Eun-Seok SONG
  • Patent number: 7330084
    Abstract: A printed circuit board for a high-speed semiconductor package uses bonding wires as a shield structure, e.g., to shield an open portion of signal transmission lines, and thereby reduce the likelihood of coupling noises, e.g., between signal transmission lines.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: February 12, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seok Lee, Kyung-Lae Jang, Tae-Je Cho, Ki-Won Choi
  • Patent number: 7307352
    Abstract: A semiconductor package utilizing an existing substrate regardless of the change of the semiconductor chip design, and manufacturing method thereof are provided. The semiconductor package including an added wire bonding unit for connecting a redundant bond finger to an added bond finger, or an added wire bonding unit for connecting a redundant bond finger connected to a first printed circuit pattern to a redundant solder ball pad connected to a second printed circuit pattern.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: December 11, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Ki-won Choi
  • Patent number: 7177895
    Abstract: A linear channel select filter for an Intermediate Frequency selector of a satellite broadcasting tuner, linearly changes a desired frequency by adjusting an output current, and includes: a transconductance (GM) current cell controller for determining a control voltage according to a select signal, generating the output current according to an differential input voltage, linearly controlling the output current according to the control voltage, and providing a linearly variable resistance according to the linearly controlled output current, and a capacitor circuit coupled to the GM cell controller to provide a capacitance to generate a cutoff frequency voltage according to the output current and the variable resistance. An occupying area and a size of the filter are reduced.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: February 13, 2007
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yoo Sam Na, Hyo Seok Kwon, Ki Won Choi, Seung Min Oh