Patents by Inventor Tae Choi

Tae 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).

  • Publication number: 20220349509
    Abstract: A fluid silencer includes: an expansion pipe disposed on a pipe through which a fluid containing noise sources flows and having an accommodation space therein; a viscous fluid received in the accommodation space; a noise introducing member disposed between the pipe and the expansion pipe to seal the accommodation space and allowing the noise sources to be introduced into the accommodation space therethrough; at least one partition member disposed in the accommodation space and dividing the accommodation space in a flow direction of the fluid; multiple baffle members disposed on one surface of the partition member and forming multiple sound absorbing spaces into which the noise sources introduced into the accommodation space are dispersedly introduced; and an elastic member disposed between the partition member and the baffle members and contracted/expanded by the viscous fluid entering/leaving the sound absorbing spaces as the noise sources are introduced into the sound absorbing spaces.
    Type: Application
    Filed: June 9, 2020
    Publication date: November 3, 2022
    Applicant: CENTER FOR ADVANCED META-MATERIALS
    Inventors: Jong Jin PARK, Jun Hyuk KWAK, Hak Joo LEE, Tae In CHOI, Min Seok JUNG
  • Patent number: 11475835
    Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor that controls an amount of current received from a first power supply voltage line connected via a second node to an organic light emitting diode in response to a voltage of a first node, a second transistor connected between a data line and the second node and that includes a first gate electrode connected to a first scan line, a light emitting line connected to a gate electrode of at least one light emitting transistor located in a current path between the first power supply voltage line and the organic light emitting diode, and a seventh transistor connected between one of at least one second gate electrode of the second transistor and the light emitting line. Accordingly, a threshold voltage of a switching transistor included in each of the plurality of pixels may be negatively shifted.
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: October 18, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyo Jung Kim, Tae Young Kim, Yong Sung Park, Jong Woo Park, Mi Seon Seo, Keun Soo Lee, Ki Ju Im, Dae Youn Cho, Young Tae Choi, Hyun Cheol Hwang
  • Patent number: 11448550
    Abstract: An optical measurement device includes an optical sensor which measures an optical waveform of a reference object or a measurement object, a learner which receives a first optical waveform of the reference object from the optical sensor and learns frequency characteristics of the first optical waveform, a filter generator which analyzes the frequency characteristics of the first optical waveform and generates a frequency filter, a frequency modeling unit which receives a second optical waveform of the measurement object from the optical sensor and models frequency characteristics of the second optical waveform, and an optical characteristic detector which calculates an optical characteristic index of the second optical waveform based on an output value of the frequency modeling unit and the frequency filter.
    Type: Grant
    Filed: January 20, 2021
    Date of Patent: September 20, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Youn Cho, Eu Gene Kim, Ji Ho Moon, Jong Woo Park, Young Tae Choi
  • Publication number: 20220255021
    Abstract: Disclosed herein is an organic light emitting diode including a novel anthracene compound. More particularly, an organic light emitting diode including an anthracene compound represented by Chemical Formula A; and a compound represented by Chemical Formula B-1 or B-2 is provided. Chemical Formulas A, B-1, and B-2 are as defined in the description.
    Type: Application
    Filed: January 14, 2022
    Publication date: August 11, 2022
    Inventors: Se-Jin Lee, Si-In KIM, Seok-Bae Park, Hee-Dae Kim, Yeong-Tae Choi, Seung-Soo Lee, Ji-Yung Kim, Kyeong-Hyeon Kim, Kyungtae Kim, Myeong-Jun Kim, Tae Gyun Lee, Joon-Ho Kim
  • Patent number: 11404519
    Abstract: An organic light emitting display device may include a first active pattern disposed on a substrate and including a first region, a second region, and a third region; a first gate electrode disposed on the first active pattern and forming a first transistor together with the first region and the second region; a second gate electrode disposed on the first active pattern and forming a second transistor together with the second region and the third region; a third gate electrode disposed on the first gate electrode, overlapping the second region, and forming a storage capacitor together with the first gate electrode; a metal pattern disposed between the first active pattern and the third gate electrode and overlapping the second region; and an organic light emitting diode electrically connected to the first transistor, the second transistor, and the storage capacitor.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: August 2, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Ho Moon, Jong Woo Park, Dae Youn Cho, Young Tae Choi
  • Publication number: 20220181559
    Abstract: Disclosed are an anthracene derivative with a specific structure and an organic electroluminescent device including the anthracene derivative. The organic electroluminescent device includes a light emitting layer employing the anthracene derivative as a host compound and a polycyclic aromatic derivative with a specific structure as a dopant compound. The use of the host and dopant compounds allows the organic electroluminescent device to have a long lifetime and significantly improved low-voltage characteristics.
    Type: Application
    Filed: December 7, 2021
    Publication date: June 9, 2022
    Applicant: SFC CO., LTD
    Inventors: Se-jin LEE, Si-In KIM, Seok-bae PARK, Hee-dae KIM, Yeong-tae CHOI, Seung-soo LEE, Ji-yung KIM, Kyeong-hyeon KIM, Kyung-tae KIM, Myeong-jun KIM, Tae-gyun LEE, Joon-ho KIM
  • Patent number: 11342838
    Abstract: A system of controlling a charging apparatus for a vehicle may include a power supply unit supplying an AC power, a power factor correction (PFC) converter unit connected to the power supply unit and converting the AC power supplied from the power supply unit into a DC power and supplying the converted DC power to a load, and a controller extracting a high frequency component from the AC power input to the PFC converter unit, determining a frequency of the extracted high frequency component, and limiting, when the determined frequency is equal to or greater than a predetermined value, output power from the PFC converter unit to a value lower than the predetermined value.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: May 24, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Gyu Tae Choi
  • Publication number: 20220147066
    Abstract: According to the present invention, a drone control system includes: a flying drone; a cloud server configured to transmit and receive information to and from the drone by wireless communication; and a ground control system configured to establish a flight plan of the drone by connecting the drone and the cloud server by the wireless communication.
    Type: Application
    Filed: November 29, 2021
    Publication date: May 12, 2022
    Applicant: CLROBUR Co., Ltd.
    Inventors: Tae In CHOI, Seong Won JO
  • Publication number: 20220130388
    Abstract: An example electronic device includes a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. When a user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server. An instruction for performing a task is received from the server. When the user interface is displayed on the touchscreen display, the electronic device enables the user to receive the user input through the button, receives user speech through the microphone, and then provides data on the user speech to the external server.
    Type: Application
    Filed: January 10, 2022
    Publication date: April 28, 2022
    Inventors: Sang-Ki KANG, Jang-Seok SEO, Kook-Tae CHOI, Hyun-Woo KANG, Jin-Yeol KIM, Chae-Hwan LI, Kyung-Tae KIM, Dong-Ho JANG, Min-Kyung HWANG
  • Patent number: 11314898
    Abstract: An operating method of an electronic device for function execution includes receiving an execution signal associated with executing a voice command function performed based on a voice input, confirming a locked state of an electronic device, and providing an entire function execution state in which access to the entire information stored in a memory is allowed or a partial function execution state in which access to a part of the information stored in the memory is allowed, based on the locked state in relation to executing a function corresponding to the voice input or outputting a result corresponding to the voice input.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: April 26, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: In Jong Rhee, Sang Ki Kang, Sung Pa Park, Jang Seok Seo, Ji Soo Yi, Kook Tae Choi, Han Jun Ku, Da Som Lee, Dong Ho Jang, Yong Joon Jeon
  • Patent number: 11315482
    Abstract: A pixel includes a light emitting device, a first transistor for controlling an amount of current flowing from a first power source to a second power source via the light emitting device, in response to a voltage applied to a first node, a second transistor coupled between a data line and a second node corresponding to a first electrode of the first transistor, and including a gate electrode coupled to a first scan line, a third transistor coupled between the first node and a third node corresponding to a second electrode of the first transistor, and including a gate electrode coupled to the first scan line, and a fourth transistor coupled between the third transistor and the third node, and configured to maintain a turn-on state.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: April 26, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Youn Cho, Ji Ho Moon, Jong Woo Park, Young Tae Choi
  • Patent number: 11313885
    Abstract: An integrated current-measuring apparatus including a printed circuit board, a shunt resistor including a resistive element having a preset resistance and terminals extending from both sides of the resistive element, the shunt resistor being attached to a bottom surface of the printed circuit board, and a Hall sensor mounted on a top surface of the printed circuit board to face the shunt resistor with the printed circuit board being interposed between the Hall sensor and the shunt resistor.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: April 26, 2022
    Inventor: Jong-Tae Choi
  • Publication number: 20220119360
    Abstract: An objective of the invention is to provide an organic EL device that combines various materials of the device and a capping layer composed from a material that absorbs sunlight within the wavelength range of 400 nm to 410 nm to prevent impact on materials inside the organic EL device, has a high light absorption coefficient and a high refractive index to significantly improve light extraction efficiency, has excellent stability, durability and light resistance in a thin film, and has no absorption within the wavelength ranges of blue, green and red, to thereby effectively achieve the characteristics of the various materials of the device. The invention is an arylamine compound having a benzazole structure, and is also an organic EL device including a capping layer containing the arylamine compound and a light-emitting layer containing a host and a phosphorescent dopant.
    Type: Application
    Filed: February 21, 2020
    Publication date: April 21, 2022
    Applicants: HODOGAYA CHEMICAL CO., LTD., SFC CO., LTD.
    Inventors: Shunji MOCHIZUKI, Takuya UEHARA, Kouki KASE, Yuta HIRAYAMA, Takeshi YAMAMOTO, Shuichi HAYASHI, Young-Tae CHOI, Se-Jin LEE, Seok-Bae PARK, Tae-Jung YU, Byung-Sun YANG
  • Patent number: 11308874
    Abstract: A display device including an emitting element. A first transistor includes a first electrode electrically connected to a first supply voltage line, a second electrode electrically connected to the emitting element, and a gate electrode receiving a data signal, the first transistor being configured to transfer a driving current to the emitting element based on the data signal. A capacitor is connected between the gate electrode of the first transistor and the first supply voltage line. An electric field generating element is connected between the second electrode of the first transistor and the gate electrode of the first transistor and includes ferroelectrics.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: April 19, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Young Kim, Jong Woo Park, Hyo Jung Kim, Ki Ju Im, Young Tae Choi
  • Patent number: 11277278
    Abstract: A smart home service which is capable of providing an environment in which calling a control command for a device is available via a user terminal protocol to control between the device and a user terminal based on different type of protocol and a control method for the same. The smart home service server connecting at least one device operated based on a first protocol to at least one user terminal operated based on a second protocol, includes an application programming interface (API) controller configured to allow a control command for the at least one device to be called via the second protocol of the at least one user terminal; a filter configured to convert the called control command according to the first protocol; and a control command transmitter configured to transmit the control command converted according to the first protocol, to the at least one device.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: March 15, 2022
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Woo Ock, Sung Bin Im, Young Min Ko, Hyun Joong Kim, Hyun Jin Oh, Young Seon Kong, Min Su Kim, Seok Min Bae, Suk Tae Choi, Jung Mo Yeon, Lye Suk Lee
  • Patent number: 11250775
    Abstract: A display device includes a pixel, a first control pad, a second control pad, and a first dummy pad. The pixel may emit light with luminance corresponding to a data signal. Supply of the data signal to the pixel depends on a first control signal and a second control signal. The first control pad is connected to a first control line for supplying the first control signal. The second control pad is connected to a second control line for supplying the second control signal. The first dummy pad is positioned between the first control pad and the second control pad and may receive a first dummy signal. A voltage level of the first dummy signal is in a range from a voltage level of the first control signal to a voltage level of the second control signal.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: February 15, 2022
    Inventors: Ju Hee Lee, Dae Youn Cho, Jong Woo Park, Young Tae Choi
  • Patent number: 11232754
    Abstract: A display device includes: a substrate; a gate pattern disposed on the substrate; an oxide semiconductor layer disposed on the substrate, the oxide semiconductor layer includes a channel region that overlaps with the gate pattern; and an insulating film disposed on the gate pattern, the insulating film includes majority carrier supporting ions, wherein the gate pattern includes a plurality of gate holes, wherein the gate holes are formed inside a region of the gate pattern that does not overlap with the channel region of the oxide semiconductor layer, and wherein the channel region of the oxide semiconductor layer includes the majority carrier supporting ions.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: January 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki Ju Im, Tae Young Kim, Hyo Jung Kim, Jong Woo Park, Young Tae Choi, Hyun Cheol Hwang
  • Patent number: 11228238
    Abstract: A charging apparatus may include a power factor correction converter including a switching element, to correct a power factor of AC power provided by external charging equipment through ON/OFF control of the switching element, to convert the corrected power factor into DC power, and to output the DC power; a DC link capacitor connected to both ends of the PFC converter to form a DC voltage; a DC-DC converter converting a magnitude of the DC voltage formed by the DC link capacitor into a magnitude of a voltage required by an energy storage device to be charged; and a duty controller configured to determine a duty of the switching element in the PFC converter based on a magnitude of a common-mode component of an AC voltage of the AC power provided by the external charging equipment and the magnitude of the DC voltage formed by the DC link capacitor.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: January 18, 2022
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Dong Gyun Woo, Gyu Tae Choi, Hui Sung Jang, Hyun Wook Seong
  • Patent number: 11222635
    Abstract: An electronic device of the present invention comprises: a housing; a touchscreen display; a microphone; at least one speaker; a button disposed on a portion of the housing or set to be displayed on the touchscreen display; a wireless communication circuit; a processor; and a memory. The electronic device is configured to store an application program including a user interface for receiving a text input. When the user interface is not displayed on the touchscreen display, the electronic device enables a user to receive a user input through the button, receives user speech through the microphone, and then provides data on the user speech to an external server including an automatic speech recognition system and an intelligence system. An instruction for performing a task generated by the intelligence system in response to the user speech is received from the server.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: January 11, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Ki Kang, Jang-Seok Seo, Kook-Tae Choi, Hyun-Woo Kang, Jin-Yeol Kim, Chae-Hwan Li, Kyung-Tae Kim, Dong-Ho Jang, Min-Kyung Hwang
  • Publication number: 20220002319
    Abstract: The present disclosure relates to a boron compound useful in an organic light-emitting diode and an organic light-emitting diode comprising same and, more particularly, to a boron compound represented by [Chemical Formula A] or [Chemical Formula B], wherein [Chemical Formula A] and [Chemical Formula B] are as defined in the description.
    Type: Application
    Filed: November 19, 2019
    Publication date: January 6, 2022
    Inventors: Se-Jin Lee, Bong-Hyang Lee, Taejung Yu, Yeong-Tae Choi, Kyung-Tae Kim