Patents by Inventor Chul Choi

Chul 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: 20230051763
    Abstract: A camera apparatus includes a camera body portion including a prism unit, a lens assembly, and an image sensor unit, a gyro sensor detecting a hand-shake with respect to the camera body portion and outputting gyro sensor information, a driver circuit generating at least one of a prism driving signal for image stabilization of the prism unit and a sensor driving signal for image stabilization of the image sensor unit based on the gyro sensor information, a prism actuator disposed in the camera body portion for driving the prism unit and performing image stabilization on the prism unit in response to the prism driving signal, and a sensor actuator disposed in the camera body portion for driving the image sensor unit and performing image stabilization on the image sensor unit in response to the sensor driving signal.
    Type: Application
    Filed: July 11, 2022
    Publication date: February 16, 2023
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Chul CHOI
  • Publication number: 20230047942
    Abstract: A heat dissipation apparatus and antenna assembly using the same is disclosed herein. According to an embodiment of the present disclosure, a heat dissipation apparatus configured to cool a circuit board including at least one heat generation element is provided, the heat dissipation apparatus including: a plate disposed to face the circuit board; a plurality of first heat dissipation fins disposed in a first direction on one surface of the plate spaced apart from the circuit board; and a blowing unit disposed to face the one surface of the plate, the blowing unit including at least one fan configured to discharge air toward the one surface of the plate, wherein a space between two adjacent first heat dissipation fins defines a side flow path configured to guide the air discharged from the at least one fan.
    Type: Application
    Filed: October 28, 2022
    Publication date: February 16, 2023
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Kyu Chul CHOI, In Hwa CHOI, Youn Jun CHO, Jae Hyun PARK, Kyo Sung JI, Hye Yeon KIM, Chi Back RYU, Jeong Hyun CHOI, Jae Ho JANG
  • Patent number: 11578718
    Abstract: An apparatus for reducing noise of a gear pump through uneven pitch-simulated control includes a calculation unit to calculate different control current values for each tooth of a teeth order by applying a teeth number, the teeth order, and a teeth angle of the gear pump in which a plurality of teeth are evenly formed, a storage unit to map and store the teeth order and the different control current values corresponding to the teeth order for each tooth, and a current controller to variably generate the control current value mapped corresponding to the teeth order when each tooth reaches a reference position when the gear pump rotates by a motor, wherein the control current value is added to a reference current value of a motor control signal and applied to the motor.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: February 14, 2023
    Assignees: Hyundai Motor Company, Kia Corporation, Myunghwa Ind. Co., Ltd.
    Inventors: Sung Wook Jang, Dong Kuk Han, MinSu Kim, Chin Chul Choi, Byung Jun Hwang, Hyung Suk Kim
  • Publication number: 20230045544
    Abstract: A display device includes: a display panel including a first area, a bending area, and a second area arranged along a first direction, the second area being located underneath the first area when the bending area is bent; and a spacer between the first area and the second area, and including: a first part; and a second part protruding from the first part in the first direction. Opposite sides of the second part in a second direction that crosses the first direction define steps that are stepped from the first part, and the steps are located at an outside of the second area in a plan view.
    Type: Application
    Filed: April 18, 2022
    Publication date: February 9, 2023
    Inventors: JAIKU SHIN, JINHYOUNG KIM, SUNG CHUL CHOI
  • Publication number: 20230040680
    Abstract: Disclosed is a battery module with improved manufacturing efficiency and improved cooling efficiency. The battery module includes a plurality of secondary batteries; and a cooling member configured so that the plurality of secondary batteries are mounted thereto, and the cooling member includes an upper frame having a plate shape with a predetermined length so that the plurality of secondary batteries are mounted to a first surface thereof; and a lower frame coupled to a second surface of the upper frame on a side opposite the first surface and having a coolant channel configured so that a coolant flows through the coolant channel.
    Type: Application
    Filed: May 14, 2021
    Publication date: February 9, 2023
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Bum CHOI, Jong-Yoon KEUM, Dong-Hwan SHIN, Jong-Chul CHOI
  • Publication number: 20230032397
    Abstract: An example operation method of an image forming apparatus includes determining a state of a toner refill operation of injecting toner from a toner reload kit (TRK) into a cartridge in the image forming apparatus, based on completion of injecting toner from the TRK into the cartridge, controlling the TRK to store information indicating a toner refill completion in a memory of the TRK, based on completion of injecting toner from the TRK into the cartridge, updating information of an amount of remaining toner of the cartridge based on an amount of the toner injected into the cartridge from the TRK, and based on the information indicating the toner refill completion being stored in the memory of the TRK, unlocking a locking apparatus in the image forming apparatus so the TRK may be removed from the cartridge.
    Type: Application
    Filed: October 11, 2022
    Publication date: February 2, 2023
    Inventors: Hong-Chul CHOI, Yun-Su KIM, Seong-ho JIN, Jinwoo NOH
  • Patent number: 11570911
    Abstract: A display device includes a display panel and a lower member disposed below the display panel. The display panel includes a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region. The lower member includes a support layer and a digitizer. The support layer comprises a first support part disposed below the first non-folding region, and having insulating property, and a second support part disposed below the second non-folding region and having insulating property. The digitizer is disposed below the first support part and the second support part.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: January 31, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jaiku Shin, Sung Chul Choi
  • Publication number: 20230014314
    Abstract: A display device includes a display module including a folding area and a non-folding area, an impact absorbing layer disposed under the display module and including a bending area and a non-bending area, and a support layer disposed under the impact absorbing layer and including a first sub-support layer overlapping a first non-folding area and a second sub-support layer spaced apart from the first sub-support layer and overlapping a second non-folding area. The first sub-support layer includes a first opening group formed through the first sub-support layer and spaced apart from a first cross-section surface adjacent to the second sub-support layer in a direction opposite to a second direction, and the second sub-support layer includes a second opening group formed through the second sub-support layer and spaced apart from a second cross-section surface adjacent to the first sub-support layer in the second direction.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: DONGWOO SEO, DONGJIN PARK, JAIKU SHIN, SUNG CHUL CHOI
  • Publication number: 20230018300
    Abstract: A protective window includes a glass substrate which faces a display surface of an image-generating panel and has a thickness of about 20 micrometers to about 80 micrometers; a protective film which faces the display surface of the image-generating panel with the glass substrate therebetween; an adhesive layer which is between the protective film and the glass substrate and combines the protective film with the glass substrate; and a protective layer which covers an edge portion of the glass substrate. A thickness of the protective layer which covers the edge portion of the glass substrate is equal to or less than about ? of a thickness of the adhesive layer which combines the protective film with the glass substrate.
    Type: Application
    Filed: September 22, 2022
    Publication date: January 19, 2023
    Inventors: Jai Ku SHIN, Dong Jin PARK, Dongwoo SEO, Sung Chul CHOI
  • Publication number: 20230021186
    Abstract: The present invention relates to a heat dissipation device for an electronic element, the heat dissipation device including a first chamber in which a printed circuit board having heating elements mounted thereon is disposed, a second chamber configured to exchange heat with heat transferred from the first chamber and configured such that an injection part configured to inject a refrigerant and a refrigerant supply part configured to supply the refrigerant to the injection part are disposed in the second chamber, a heat transfer part disposed between the first chamber and the second chamber and configured to receive heat from the heating elements of the first chamber and supply the heat to the second chamber, and a condensing part configured to condense the refrigerant injected into the second chamber, in which a plurality of evaporation-inducing ribs is provided on a surface of the heat transfer part exposed to the second chamber and allows the liquid refrigerant injected by the injection part to be adsorbed
    Type: Application
    Filed: September 18, 2022
    Publication date: January 19, 2023
    Applicant: KMW INC.
    Inventors: Duk Yong KIM, Jin Soo YEO, Kyu Chul CHOI, In Hwa CHOI, Youn Jun CHO, Jeong Hyun CHOI, Jae Hyun PARK
  • Patent number: 11554349
    Abstract: A nanofiber membrane includes a polymer nanofiber; and an amphiphilic triblock copolymer bonded to the surface of the polymer nanofiber, the amphiphilic triblock copolymer includes a hydrophobic portion; hydrophilic portions positioned at both ends of the hydrophobic portion; and a low surface energy portion positioned at one end of each of the hydrophilic portions positioned at both ends of the hydrophobic portion, and the hydrophobic portion of the amphiphilic triblock copolymer is bonded to the surface of the polymer nanofiber and the hydrophilic portion and the low surface energy portion are exposed to the outside of the surface of the polymer nanofiber. The membrane simultaneously exhibits hydrophilicity, underwater oleophobicity, and low oil adhesion force, thus has surface segregation properties, and as a result, has an excellent oil permeate flux, exhibits antifouling properties, and can excellently separate oil in water.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: January 17, 2023
    Assignee: GWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hee Chul Choi, So Young Kim, Yejin Liang
  • Publication number: 20230009663
    Abstract: Provided is a method for delegating a device ownership based on a blockchain. The blockchain-based device ownership delegating method may include: transferring a device ownership request of a first user to a blockchain; providing a smart contract based ownership request event generated by the blockchain to a second user; transferring a device ownership change request of the second user to the blockchain; providing a smart contract based ownership change event generated by the blockchain to a device decentralized application (DApp); changing a device ownership; and recording a change history of the device ownership in the blockchain.
    Type: Application
    Filed: July 7, 2022
    Publication date: January 12, 2023
    Inventors: Yun Chul CHOI, Jung Soo PARK, Euihyun JUNG
  • Patent number: 11539943
    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus according to the present invention may comprise deriving an intra-prediction mode of a current block, and performing intra-prediction for the current block based on the intra-prediction mode. The deriving of the intra-prediction mode may comprise decoding a predetermined mode sameness indicator.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: December 27, 2022
    Assignees: Electronics and Telecommunications Research Institute, Industry-University Cooperation Foundation Korea Aerospace University, Hanbat National University Industry-Academic Cooperation Foundation
    Inventors: Jin Ho Lee, Sung Chang Lim, Jung Won Kang, Hyun Suk Ko, Ha Hyun Lee, Dong San Jun, Seung Hyun Cho, Hui Yong Kim, Jae Gon Kim, Do Hyeon Park, Jin Soo Choi, Hae Chul Choi
  • Patent number: 11538198
    Abstract: Disclosed is a data transmission system that transmits data by using a relay. The relay selects a transmission terminal from among a plurality of terminals accessing a base station. A base station transmits base station data to the relay during a first time slot, and the transmission terminal transmits terminal data to the relay. The relay transmits terminal data to the base station during a second time slot, and transmits base station data to the transmission terminal.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: December 27, 2022
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Sung Chang Lim, Se Yoon Jeong, Hae Chul Choi, Jin Soo Choi, Jin Woo Hong, Yung Lyul Lee, Dae Yeon Kim
  • Publication number: 20220404867
    Abstract: A display device includes a display panel including a first non-folding area, a folding area, and a second non-folding area and a support plate that is disposed under the display panel and that defines a plurality of openings overlapping the folding area and arranged in a first direction and a second direction intersecting the first direction. The support plate includes a first branch disposed between openings adjacent to each other in the second direction among the plurality of openings and a second branch disposed between openings adjacent to each other in the first direction among the plurality of openings. A first width of the first branch in the second direction is smaller than a second width of each of the openings in the second direction.
    Type: Application
    Filed: March 28, 2022
    Publication date: December 22, 2022
    Inventors: JAIKU SHIN, DONGWOO SEO, Jihye SHIN, JIN YONG SIM, SEOKCHAN LEE, SUNG CHUL CHOI
  • Publication number: 20220396727
    Abstract: A system and method for generating base water and precipitate, including combining produced water with seawater to precipitate barium sulfate from barium in the produced water and from sulfate in the seawater, and separating the precipitate to give the base water and the precipitate. The base water may have less than a specified amount of sulfate and be utilized for hydraulic fracturing fluid. The precipitate may give a weighting agent for drilling.
    Type: Application
    Filed: June 14, 2021
    Publication date: December 15, 2022
    Inventors: Fahd Ibrahim AlGhunaimi, Young Chul Choi, Regis Didier Alain Vilagines, Tao Chen, Nahr M. Abulhamayel, Sultan S. AlOtaibi
  • Publication number: 20220397934
    Abstract: A display device may include a window module and a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region. The display module may include a damping layer, a color filter layer, a display panel, and a lower member, which are sequentially stacked below the window module, and the damping layer may include polymer.
    Type: Application
    Filed: January 13, 2022
    Publication date: December 15, 2022
    Applicant: Samsung Display Co., Ltd.
    Inventors: SOJEONG LA, DONGJIN PARK, JAIKU SHIN, Jongmin YANG, GYEONGHO JEONG, SUNG CHUL CHOI
  • Patent number: 11513645
    Abstract: A display device includes a display module that is foldable about first and second folding axes that are spaced apart from each other along a first direction and are extended in a second direction crossing the first direction, and a digitizer module below the display module. The digitizer module includes a plurality of first electrodes that are extended in the first direction and are arranged along the second direction, and a plurality of second electrodes that are extended in the second direction, are arranged along the first direction, and are electrically disconnected from the first electrodes. The plurality of first electrodes include a plurality of first sub-electrodes overlapped with the first folding axis and a plurality of second sub-electrodes overlapped with the second folding axis and located at a different layer from the first sub-electrodes.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: November 29, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jaiku Shin, Dongjin Park, Dongwoo Seo, Sung Chul Choi
  • Patent number: 11516498
    Abstract: Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: November 29, 2022
    Inventors: Hae-Chul Choi, Se Yoon Jeong, Sukhee Cho, Hui Yong Kim, Jinho Lee, Hahyun Lee, Sung-Chang Lim, Jongho Kim, Jin Soo Choi, Jin Woo Hong, Jin Woong Kim
  • Patent number: RE49308
    Abstract: Provided is a scalable video-decoding method based on multiple layers. The scalable video-decoding method according to the present invention comprises: a step of predicting first filter information of a video to be filtered using the information contained in an object layer and/or information contained in another layer, and generating second filter information in accordance with the prediction; and a step of filtering the video to be filtered using the second filter information. According to the present invention, the amount of information being transmitted is reduced, and video compression performance is improved.
    Type: Grant
    Filed: June 22, 2020
    Date of Patent: November 22, 2022
    Inventors: Sung Chang Lim, Hui Yong Kim, Se Yoon Jeong, Suk Hee Cho, Jong Ho Kim, Ha Hyun Lee, Jin Ho Lee, Jin Soo Choi, Jin Woong Kim, Chie Teuk Ahn, Hae Chul Choi