Patents by Inventor Dong Choi

Dong 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: 9773965
    Abstract: Provided is a piezoelectric vibrating device including a case provided with a certain space therein, a piezoelectric vibrating member provided in the case and vibrating according to an applied voltage, a weight member provided in the case and connected to a part of the piezoelectric vibrating member in a vibration direction of the piezoelectric vibrating member, and a limitation member for limiting movement of the weight member.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: September 26, 2017
    Assignee: INNOCHIPS TECHNOLOGY CO., LTD.
    Inventors: In Kil Park, Tae Hyung Noh, Seong Cheol Park, Young Sul Kim, Byung Yul Choi, Hyun Chul Jung, Soon Dong Choi
  • Publication number: 20170264069
    Abstract: A laser radar system includes a first light source unit including a signal light source —a seed laser diode or a light source for amplifying a laser beam from the seed laser diode —and a pump laser diode, a second light source unit disposed to be spaced apart from the first light source unit, the second light source unit including an optical amplifier for amplifying a signal output from the first light source unit, and an optical connector for connecting the first light source unit and the second light source unit to each other, wherein the second light source unit is disposed at an end of a laser transceiver unit of the laser radar system.
    Type: Application
    Filed: August 15, 2016
    Publication date: September 14, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hong-Seok SEO, Bong Ki MHEEN, Min Hyup SONG, Gyu Dong CHOI
  • Publication number: 20170264878
    Abstract: Provided herein is a scanning device including a transmitting module dividing a subject into a plurality of image regions and emitting laser beam onto the plurality of image regions by an interlaced method, a receiving module receiving reflected laser beam from the subject, and a signal processing module scanning a shape of the subject by a Time Of Flight (TOF) technique based on the reflected laser beam, wherein the signal processing module generates a single image with respect to the shape of the subject by overlapping subframes generated by the interlaced method.
    Type: Application
    Filed: July 12, 2016
    Publication date: September 14, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Min Hyup SONG, Bong Ki MHEEN, Hong-Seok SEO, Gyu Dong CHOI
  • Publication number: 20170261371
    Abstract: There are provided an optical receiver and a laser radar including the same. The optical receiver includes a plurality of optical detecting units configured to convert an optical signal reflected from a target into an electrical signal and to output the electrical signal, a signal combiner configured to combine output signals of the plurality of light detecting regions, a plurality of switches provided between the plurality of optical detecting units and the signal combiner, and a controller configured to control the plurality of switches so that the plurality of optical detecting units are selectively connected to the signal combiner based on whether the optical signal to reflected from the target is input. Therefore, it is possible to make a module small, to improve stability and reliability, and to reduce a signal to noise ratio.
    Type: Application
    Filed: October 21, 2016
    Publication date: September 14, 2017
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTE
    Inventors: Bongki MHEEN, Hong-Seok SEO, Min Hyup SONG, Gyu Dong CHOI
  • Patent number: 9733344
    Abstract: Provided herein a laser radar apparatus including a plurality of light transmission and reception modules arranged concavely in an opposite direction to a scanning direction based on a surface vertical to the scanning direction, wherein each of the plurality of light transmission and reception modules comprises a transmitter configured to deflect a laser beam and to irradiate the deflected laser beam to a target; and a receiver configured to receive the laser beam reflected from the target.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 15, 2017
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Jae Sik Sim, Ki Soo Kim, Bong Ki Mheen, Myoung Sook Oh, Hong Seok Seo, Jung Ho Song, Yong Hwan Kwon, Dong Sun Kim, Min Hyup Song, Gyu Dong Choi
  • Patent number: 9711747
    Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: July 18, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Mi-Young Han, Chang Wook Han, Tae Il Kum, Gwi Jeong Cho, Tae Shick Kim, Se Ung Kim, Hee Dong Choi
  • Patent number: 9693145
    Abstract: The present invention relates to a suspension structure for a high power micro speaker and, more particularly, to a shape of a suspension which ensures a lightweight of the suspension as well as high reliability and a conductive pattern which applies electric signals. The present invention provides a suspension for a high power micro speaker that includes an outer peripheral portion, a central portion and a connection portion, is provided with a conductive pattern, and is formed in a rectangular shape, wherein land portions for use in soldering or welding lead-in wires of a voice coil are formed on long connection portions disposed on long sides.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: June 27, 2017
    Assignee: EM-TECH. Co., Ltd.
    Inventors: Cheon Myeong Kim, Kyu Dong Choi, In Ho Jeong
  • Publication number: 20170049968
    Abstract: Disclosed herein is a length-reducing syringe driving device, the length-reducing syringe driving device wherein a drive for syringe device is installed at a syringe device (10), and pushes and drives a piston (12) equipped at an injection cartridge (11) which has a discharging outlet (13) at one dead end thereof. The length-reducing syringe driving device (100) comprises: a rotation driving part (110) installed at one or more places at an outer sidewall surface at the other dead end of the injection cartridge (11); and a one-way bending member (120) provided to be contacted to the piston (12) at one dead end thereof, configured to be bended exclusively to one direction, and having a sidewall surface of a bending direction driven by the rotation driving part (110) and pushing the piston (12).
    Type: Application
    Filed: April 28, 2015
    Publication date: February 23, 2017
    Inventor: Kyu Dong CHOI
  • Patent number: 9508747
    Abstract: A thin film transistor array substrate is discussed. The thin film transistor array substrate includes, according to one embodiment, gate and data lines crossing each other, a gate insulation film, a gate electrode, an active layer, an etch stop layer formed on the active layer to define a channel region of the active layer, and a source electrode and a drain electrode formed on the active layer. The etch stop layer is between the source and drain electrodes spaced apart from the etch stop layer. The source electrode and the drain electrode include a first electrode layer and a second electrode layer disposed on the first electrode. The first electrode layer is formed from a dry-etchable material and the second electrode layer is formed from a wet-etchable material.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: November 29, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventor: Hee Dong Choi
  • Publication number: 20160331903
    Abstract: Disclosed herein is a method for injecting a medication, including injecting the medication into a subject by pushing the medication filled in a cartridge with a pusher, and moving the pusher backwards to a predetermined distance in a direction opposite to a direction of pushing the pusher when a prescribed dose of medication has been injected.
    Type: Application
    Filed: February 28, 2014
    Publication date: November 17, 2016
    Inventor: Kyu Dong CHOI
  • Patent number: 9484768
    Abstract: Provided are a complex device including a piezoelectric device, a wire patch cell (WPC) antenna disposed on one surface of the piezoelectric device, the WPC antenna being connected to two antenna patterns that are vertically spaced apart from each other, and a near field communication (NFC) antenna disposed outside the WPC antenna and an electronic device having the same.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: November 1, 2016
    Assignee: INNOCHIPS TECHNOLOGY CO., LTD.
    Inventors: In Kil Park, Tae Hyung Noh, Sung Cheol Park, Young Sul Kim, Soon Dong Choi, In Seob Jung, Wan Park, Hee Seob Shin
  • Publication number: 20160315135
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 27, 2016
    Inventor: Hee Dong CHOI
  • Patent number: 9473837
    Abstract: The present invention discloses a sound transducer with a ventilation structure capable of securing a flow path of air introduced from within and outside of the sound transducer to the maximum. The sound transducer with a ventilation structure includes a frame, a magnetic circuit installed within the frame, a voice coil vibrating according to mutual electromagnetic force with the magnetic circuit upon receiving an electrical signal, a vibration plate vibrating according to vibrations of the voice coil to generate a sound, and a drain hole formed to be adjacent to the corner of the frame and allowing air to flow between the interior and exterior of the frame.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: October 18, 2016
    Assignee: Em-Tech. Co., Ltd.
    Inventors: Kyu Dong Choi, Kil Dong Park, Ji Hoon Kim, Joong Hak Kwon
  • Patent number: 9444066
    Abstract: An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are discussed. In one example, the organic electroluminescent device includes first and second electrodes facing each other on a substrate and at least two emission layers formed between the first and second electrodes and realizing blue light, wherein, among the emission layers, a first blue emission layer close to the first electrode includes a first blue dopant having a different maximum luminescence wavelength than that of a second blue dopant of a second blue emission layer close to the second electrode.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: September 13, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: So-Yeon Ahn, Chang-Wook Han, Hong-Seok Choi, Seung-Ryong Joung, Gwi-Jeong Cho, Hee-Dong Choi
  • Patent number: 9412801
    Abstract: An OLED display device includes a display area of a substrate to display images; a non-display area surrounding the display area and applying signals to pixels within the display area; a first thin film transistor formed in the non-display area of the substrate; a second thin film transistor formed in the display area of the substrate; a planarization film formed over the first and second thin film transistors; a first electrode formed on the planarization film in the non-display area and formed with at least one first opening; a second electrode formed on the planarization film and connected to a electrode of the second thin film transistor; a bank pattern formed on the second electrode and the first electrode and exposing a part of the second electrode. The bank pattern is adjacent to the first electrode.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: August 9, 2016
    Assignee: LG Display Co., Ltd.
    Inventor: Hee Dong Choi
  • Patent number: 9391131
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: July 12, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Hee Dong Choi, Sung Jin Hong, Soon Il Yun, Il Gi Jeong, Joong Sun Yoon, Kyungsu Lee, Seung-Yong Yang
  • Publication number: 20160164050
    Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes: an emission unit including an organic light emitting diode, a pixel circuit unit including: a circuit configured to drive the emission unit, and a line configured to apply a signal to the circuit, and a light blocking layer covering the pixel circuit unit, and configured to block light input to the pixel circuit unit, and a repair part disposed in the light blocking layer, the repair part being configured for repairing the line when a defect occurs in a pixel that includes the pixel circuit unit.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Applicant: LG Display Co., Ltd.
    Inventors: Hee Dong CHOI, Sung Jin HONG, Soon Il YUN, Il Gi JEONG, Joong Sun YOON, Kyungsu LEE, Seung-Yong YANG
  • Patent number: 9362533
    Abstract: An OLED device is disclosed. The OLED device includes: a substrate defined into an active area in which a plurality of pixels are formed in a matrix shape, a GIP (gate-in-panel) area in which drive elements are formed, a ground contact area, and a seal line area; a thin film transistor formed in each pixel region within the active area; an organic light emission diode formed on a protective film and configured to include a first electrode, an organic light emission layer and a second electrode; a bank layer formed to divide the organic light emission diode into pixel units; a signal wiring formed in the ground contact area and the seal line area; and an extended portion formed from the same material as the first electrode of the organic light emission diode and configured to cover the signal wiring, wherein a seal line within in the seal line area is formed on an edge of the signal wiring, which is covered with the extended portion, and an interlayer insulation film adjacent to the edge of the signal wiring.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 7, 2016
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hee Dong Choi, Seung Joon Jeon
  • Patent number: D779217
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 21, 2017
    Assignee: Impressions Vanity Company
    Inventors: Yao Zhang, Dong Choi
  • Patent number: D779835
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: February 28, 2017
    Assignee: Impressions Vanity Company
    Inventors: Yao Zhang, Dong Choi