Patents by Inventor Dong-In CHOI

Dong-In 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: 20240421622
    Abstract: A battery control apparatuses may include a measuring unit for measuring a voltage of a battery, a memory for storing a multi-stage charging protocol data, and a processor for identifying a SOC of the battery based on the voltage measurement value. The processor may perform a temporary discharging procedure, when the SOC of the battery reaches the first criterion SOC while the constant current charging procedure using the first current rate is in progress. The processor may also determine an adjusted second current rate different from the second current rate based on discharging information of the temporary discharging procedure and, after the temporary discharging procedure is finished, perform a constant current charging procedure using the adjusted second current rate.
    Type: Application
    Filed: April 19, 2023
    Publication date: December 19, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventor: Dong In Choi
  • Publication number: 20240337897
    Abstract: Disclosed is an optical pulse adjusting device including a pulse shaper that receives an input signal generated based on an optical frequency comb (OFC) signal and outputs a spectrum adjustment signal by adjusting an optical spectrum shape of the input signal, an optical amplifier that outputs an optical amplification signal by amplifying the spectrum adjustment signal, an optical spectrum analyzer (OSA) that outputs an information signal by comparing an optical spectrum shape of the optical amplification signal with a target optical spectrum shape, and a control circuit that outputs a comparison signal based on the information signal. The pulse shaper further receives the comparison signal and adjusts the optical spectrum shape of the input signal based on information about a difference between the optical spectrum shape of the optical amplification signal and the target optical spectrum shape, which is included in the comparison signal.
    Type: Application
    Filed: April 2, 2024
    Publication date: October 10, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joon Tae AHN, Minje SONG, Minhyup SONG, Taehyun LEE, Seungyoung LIM, Young Jin JUNG, Gyu Dong CHOI
  • Publication number: 20240334410
    Abstract: An embodiment of the present invention includes a signal processing device; a (1-1)-th antenna which transmits or receives a (1-1)-th signal; a (1-2)-th antenna which transmits or receives a (1-2)-th signal; a second antenna which transmits or receives a second signal; a (1-1)-th phase control element disposed between the (1-1)-th antenna and the signal processing device; a (1-2)-th phase control element disposed between the (1-2)-th antenna and the signal processing device; and a second phase control element disposed between the second antenna and the signal processing device, wherein the (1-1)-th signal output from the (1-1)-th phase control element and the (1-2)-th signal output from the (1-2)-th phase control element have a phase difference of 180 degrees from each other, and the second signal output from the second phase control element has a phase difference of 90 degrees from each of the (1-1)-th signal and the (1-2)-th signal.
    Type: Application
    Filed: July 21, 2022
    Publication date: October 3, 2024
    Inventors: Yu Seon KIM, Seok BAE, Il Hee PARK, Youn Ung JEONG, Seok Dong CHOI
  • Publication number: 20240200927
    Abstract: Provided is an optical self-heterodyne detection system. The system includes a light source configured to generate light, a photodetector configured to detect the light, a programmable filter provided between the photodetector and the light source, and an electrical spectrum analyzer connected to the photodetector and configured to analyze a frequency and wavelength of the light using a detection signal of the photodetector. The light source may include a frequency comb light source.
    Type: Application
    Filed: December 4, 2023
    Publication date: June 20, 2024
    Inventors: Minhyup Song, Minje Song, Joon Tae Ahn, Taehyun Lee, Seungyoung Lim, Young Jin Jung, Gyu Dong Choi
  • Publication number: 20240130199
    Abstract: A display device includes a first substrate and a second substrate facing each other; and a filling layer disposed between the first substrate and the second substrate. The first substrate comprises a support substrate comprising a display area in which emission areas associated with sub-pixels, are arranged; a light-emitting element layer disposed on one surface of the support substrate; and an encapsulation layer disposed on the light-emitting element layer. The encapsulation layer comprises a first inorganic layer covering the light-emitting element layer; an organic layer disposed on the first inorganic layer and overlapping the light-emitting element layer; and a second inorganic layer disposed on the first inorganic layer and covering the organic layer. A thickness of the first inorganic layer is smaller than a thickness of the second inorganic layer.
    Type: Application
    Filed: June 19, 2023
    Publication date: April 18, 2024
    Inventors: Gyu Min KIM, Jong Oh KIM, Jong Hyun PARK, Min Soo SEOL, Hee Dong CHOI, Tae Young HAM
  • Publication number: 20240104464
    Abstract: A system selecting a process key factor in a commercial chemical process, includes: a data extraction unit that extracts tag data in units of a set period; an outlier discrimination unit that discriminates and aggregates outliers by tag by using an outlier extraction reference master; an outlier processing unit that generates an input mart draft excluding the outliers; a derived variable generation unit that generates derived variables for each tag, and generates an advanced input mart having the derived variable added thereto; a yield calculation unit that backs up the result of calculation of a yield by realizing a target value via exclusion and correction of the outliers; and a key factor extraction unit that extracts a yield key factor by calculating importance of each tag, and backs up importance data for each tag.
    Type: Application
    Filed: April 27, 2022
    Publication date: March 28, 2024
    Applicant: SK GAS CO., LTD.
    Inventors: Ung Gi HONG, Sung Joo YEO, Seung Hwan KONG, Min Ho KIM, Hae Bin SHIN, Hee Dong CHOI, Young Gook KYE
  • Publication number: 20240095548
    Abstract: A system for predicting process changes by using key factors in a commercial chemical process, includes: a key factor extraction and individual tag importance backup unit that extracts yield key factors by calculating the importance of each tag, and backs up importance data for each tag; and a yield prediction model training and yield prediction performing unit that performs yield prediction model training by using the importance of each tag accumulated in the key factor extraction and individual tag importance backup unit, and performs yield prediction so as to output a yield prediction result, evaluates performance, and selects an optimal prediction model.
    Type: Application
    Filed: April 27, 2022
    Publication date: March 21, 2024
    Applicant: SK GAS CO., LTD.
    Inventors: Ung Gi HONG, Sung Joo YEO, Seung Hwan KONG, Min Ho KIM, Hae Bin SHIN, Hee Dong CHOI, Young Gook KYE
  • Patent number: 11928251
    Abstract: Disclosed is a method comprising the steps of: receiving an input of content motion data included in VR content; transmitting, to a motion device, motion control data corresponding to the input content motion data to control movement of the motion device; receiving, from a predetermined sensing apparatus, motion detection data corresponding to a movement state of the motion device; selecting a motion sickness-causing section by using a difference between the motion control data and the motion detection data; generating final motion control data according to a preset algorithm such that the level of motion sickness in the selected motion sickness-causing section is minimized during a preset content reproduction section, and storing the generated final motion control data; and when 3D VR content is reproduced, transmitting, to the motion device, the final motion control data stored in the previous step so as to control the movement of the motion device.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: March 12, 2024
    Assignee: 3D INTERACTIVE CO., LTD.
    Inventors: Dong-Hyuk Kim, Bok-Dong Choi, Jong-Deok Lee
  • Patent number: 11892139
    Abstract: A lamp for a vehicle includes a first light source unit including a plurality of first light sources and for irradiating a first light that forms a first beam pattern, a second light source unit including a plurality of second light sources and for irradiating a second light that forms a second beam pattern, a first reflector including a plurality of first reflection units corresponding to the plurality of first light sources and for reflecting the first light, and a second reflector including a plurality of second reflection units corresponding to the plurality of second light sources and for reflecting the second light. In particular, the plurality of first light sources are disposed along an arc having a first curvature, and the plurality of second light sources are disposed along an arc having a second curvature, the second curvature is greater than the first curvature.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: February 6, 2024
    Assignee: SL Corporation
    Inventors: Se Hyun Jung, Byung Dong Choi
  • Publication number: 20230283375
    Abstract: Disclosed are a photonic multiband filter and a method of operating the same. The photonic multiband filter includes an optical frequency comb that forms multiple optical channels based on a single light source incident from an outside, a modulator that applies an RF signal modulated into an optical domain among a plurality of RF signals to the multiple optical channels, and a pulse shaper that determines a center frequency, a bandwidth, and a passband shape of the RF signal modulated into the optical domain including the multiple optical channels.
    Type: Application
    Filed: December 15, 2022
    Publication date: September 7, 2023
    Inventors: Minhyup SONG, Hyun Jong CHOI, Minje SONG, Gyu Dong CHOI, Taehyun LEE, SEUNGYOUNG LIM
  • Patent number: 11715332
    Abstract: A system for eye-tracking according to an embodiment of the present invention includes a data collection unit that acquires face information of a user and location information of the user from an image captured by a photographing device installed at each of one or more points set within a three-dimensional space and an eye tracking unit that estimates a location of an area gazed at by the user in the three-dimensional space from the face information and the location information, and maps spatial coordinates corresponding to the location of the area to a three-dimensional map corresponding to the three-dimensional space.
    Type: Grant
    Filed: July 21, 2022
    Date of Patent: August 1, 2023
    Assignee: VisualCamp Co., Ltd.
    Inventors: Yun Chan Suk, Tae Hee Lee, Seong Dong Choi
  • Publication number: 20230204177
    Abstract: A lamp for a vehicle includes a first light source unit including a plurality of first light sources and for irradiating a first light that forms a first beam pattern, a second light source unit including a plurality of second light sources and for irradiating a second light that forms a second beam pattern, a first reflector including a plurality of first reflection units corresponding to the plurality of first light sources and for reflecting the first light, and a second reflector including a plurality of second reflection units corresponding to the plurality of second light sources and for reflecting the second light. In particular, the plurality of first light sources are disposed along an arc having a first curvature, and the plurality of second light sources are disposed along an arc having a second curvature, the second curvature is greater than the first curvature.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventors: Se Hyun JUNG, Byung Dong CHOI
  • Patent number: 11668801
    Abstract: A LIDAR system is provided. The LIDAR system includes: a light transmitting unit configured to drive a plurality of light emitting elements by light emitting units to irradiate light to different positions of a target object; and a light receiving unit configured to detect light that is reflected at different positions of the target object and then is incident to different light receiving positions through a plurality of light receiving regions.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: June 6, 2023
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Bongki Mheen, Hong-Seok Seo, Gyu Dong Choi
  • Publication number: 20230132923
    Abstract: According to the present invention, an output inductor, rather than being composed of a separate inductor element, is magnetically coupled to a third inductor and a fourth inductor constituting a second transformer. Thus, compared to the case in which the output inductor is composed of the separate inductor element independently of the third inductor and the fourth inductor, the cost as well as the volume of the DC-DC conversion device can be reduced.
    Type: Application
    Filed: November 24, 2020
    Publication date: May 4, 2023
    Inventors: Jung Un PARK, Ja-Chun KOO, Sang-Kyoo HAN, Ji Hun BAE, Nayoung LEE, Jae Dong CHOI
  • Publication number: 20230103197
    Abstract: A method for page turn according to an embodiment is executed in a computing device which includes one or more processors and a memory storing one or more programs executed by the one or more processors and which displays content including a plurality of pages on a screen. The method includes checking whether a preset page turn icon display event occurs, displaying a page turn icon on the content when the page turn icon display event occurs, and executing the page turn based on a location of a gaze of a user viewing the content on the screen with the gaze of the user tracked.
    Type: Application
    Filed: July 10, 2020
    Publication date: March 30, 2023
    Inventors: Yun Chan SUK, Seong Dong CHOI, Se Jong KIM, Da Bin LEE
  • Publication number: 20220384924
    Abstract: Provided is a secondary battery comprising: an electrode assembly; a battery case which accommodates the electrode assembly; a first electrolyte which is accommodated in the battery case and primarily impregnates the electrode assembly; and a reinforcement electrolyte member which comprises a packaging material and a second electrolyte, wherein the packaging material is accommodated in the battery case and provided with an oxidation part which is oxidized and decomposed at a set voltage, and the second electrolyte is stored in the packaging material, released to the outside of the packaging material due to the decomposition of the oxidation part, and secondarily impregnates the electrode assembly.
    Type: Application
    Filed: November 23, 2020
    Publication date: December 1, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soon Hyung Choi, Dong In Choi
  • Publication number: 20220358790
    Abstract: A system for eye-tracking according to an embodiment of the present invention includes a data collection unit that acquires face information of a user and location information of the user from an image captured by a photographing device installed at each of one or more points set within a three-dimensional space and an eye tracking unit that estimates a location of an area gazed at by the user in the three-dimensional space from the face information and the location information, and maps spatial coordinates corresponding to the location of the area to a three-dimensional map corresponding to the three-dimensional space.
    Type: Application
    Filed: July 21, 2022
    Publication date: November 10, 2022
    Inventors: Yun Chan SUK, Tae Hee LEE, Seong Dong CHOI
  • Patent number: 11436866
    Abstract: A system for eye-tracking according to an embodiment of the present invention includes a data collection unit that acquires face information of a user and location information of the user from an image captured by a photographing device installed at each of one or more points set within a three-dimensional space and an eye tracking unit that estimates a location of an area gazed at by the user in the three-dimensional space from the face information and the location information, and maps spatial coordinates corresponding to the location of the area to a three-dimensional map corresponding to the three-dimensional space.
    Type: Grant
    Filed: April 9, 2019
    Date of Patent: September 6, 2022
    Assignee: VisualCamp Co., Ltd.
    Inventors: Yun Chan Suk, Tae Hee Lee, Seong Dong Choi
  • Publication number: 20220011854
    Abstract: Disclosed is a method comprising the steps of: receiving an input of content motion data included in VR content; transmitting, to a motion device, motion control data corresponding to the input content motion data to control movement of the motion device; receiving, from a predetermined sensing apparatus, motion detection data corresponding to a movement state of the motion device; selecting a motion sickness-causing section by using a difference between the motion control data and the motion detection data; generating final motion control data according to a preset algorithm such that the level of motion sickness in the selected motion sickness-causing section is minimized during a preset content reproduction section, and storing the generated final motion control data; and when 3D VR content is reproduced, transmitting, to the motion device, the final motion control data stored in the previous step so as to control the movement of the motion device.
    Type: Application
    Filed: August 28, 2019
    Publication date: January 13, 2022
    Applicant: 3D INTERACTIVE CO., LTD.
    Inventors: Dong-Hyuk KIM, Bok-Dong CHOI, Jong-Deok LEE
  • Patent number: 11217958
    Abstract: A semiconductor laser diode light source package includes: a seed light source for outputting signal beams; a pump beam source for outputting pump beams; and at least one mirror for transmitting the signal beams to a core of an output optical fiber and transmitting the pump beams to first cladding of the output optical fiber, wherein the seed light source, the pump beam source, and the at least one mirror are realized in a semiconductor chip, and the output optical fiber is connected to an end terminal of the semiconductor laser diode light source package.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: January 4, 2022
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hong-Seok Seo, Bongki Mheen, Gyu Dong Choi