Patents by Inventor Cheon Choi

Cheon 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: 20240118460
    Abstract: A window includes a window base with a groove having a recessed shape on an upper surface thereof, and a first blocking ink layer and a second blocking ink layer each disposed in the groove, where the first blocking ink layer and the second blocking ink layer are disposed in a same layer as each other, and the first blocking ink layer surrounds the second blocking ink layer in a plan view.
    Type: Application
    Filed: August 15, 2023
    Publication date: April 11, 2024
    Inventors: TECKSOO KIM, DONG-CHEON SHIN, JUNGA LEE, BANG-GEUL CHOI
  • Publication number: 20240097885
    Abstract: The present disclosure relates to a storage device including a memory device to which a namespace including a plurality of zones is applied, a cache memory caching a media encryption key corresponding to each of a plurality of key tags, an encryptor encrypting data subject to a write request in response to a command input from a host by using a media encryption key corresponding to a key tag included in the command, and outputting encrypted data, and a write operation controller controlling the memory device to store the encrypted data in the memory device, wherein the media encryption key is a second media encryption key generated based on a first media encryption key provided from the host and a Root of Trust (RoT) generated from the encryptor.
    Type: Application
    Filed: March 20, 2023
    Publication date: March 21, 2024
    Inventors: Han CHOI, Jae Yeon WON, Cheon Ok JEONG
  • Publication number: 20230134824
    Abstract: The present disclosure provides a steering control system including a steering angle calculating unit configured to calculate a required steering angle of a vehicle based on a heading angle difference which is a difference between a heading angle of the current vehicle and a heading angle of a traveling road at a target viewpoint, a current spacing distance which is a spacing distance in a vehicle width direction between the current vehicle and the traveling road, and a predicted spacing distance which is a spacing distance in the vehicle width direction between the vehicle and the traveling road at the target viewpoint.
    Type: Application
    Filed: August 12, 2022
    Publication date: May 4, 2023
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventor: Moon Cheon CHOI
  • Patent number: 11534715
    Abstract: Provided is a dust cover having excellent moisture control performance which is applied to a car lamp. The dust cover having excellent moisture control performance has excellent lamp humidity adjustment ability, and thus, efficiently removes moisture present inside to prevent moisture dew condensation due to a rapid temperature difference beforehand, and furthermore, maintains humidity inside the lamp low to prevent corrosion or malfunction of mounted components.
    Type: Grant
    Filed: September 4, 2020
    Date of Patent: December 27, 2022
    Assignee: DesiKhan Co., Ltd.
    Inventors: Nak Cheon Choi, Eun Young Park, Jong Hyup Kim
  • Patent number: 11485372
    Abstract: Disclosed herein is an apparatus for controlling standalone-type rear wheel steering (RWS), which includes a vehicle speed detection unit for detecting a vehicle speed by communicating with a sensor installed in a vehicle or an Electronic Control Unit (ECU); a steering angle and steering angular velocity detection unit for detecting steering angles and steering angular velocities of front and rear wheels by communicating with a sensor installed in the vehicle or the ECU; a master cylinder pressure detection unit for detecting a master cylinder pressure by communicating with a sensor installed in the vehicle or the ECU; and a controller for determining braking or turning of the vehicle using the information detected using the sensors or received from the ECU, calculating the amount of toe-in when the vehicle is braking or calculating a rear wheel steering angle when the vehicle is turning, and controlling the RWS based thereon.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: November 1, 2022
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventor: Moon Cheon Choi
  • Patent number: 11480328
    Abstract: An LED lamp having a metal PCB bent polyhedrally and a method for manufacturing the LED lamp is provided, where a base constituting the metal PCB has a rectangular or geometric shape and is configured to have a plurality of base stepped grooves formed spaced apart from each other on the underside thereof in such a manner as to be bent upward or downward from the base to form reflection surfaces continuously, so that at the time when both ends of the base come into contact with the plane, the base has a geometric shape in which the base is located in space through the reflection surfaces continuously arranged.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: October 25, 2022
    Assignee: ECOCAB CO., LTD.
    Inventor: Young Cheon Choi
  • Patent number: 11358122
    Abstract: A moisture absorbent for a vehicle lamp includes a first inorganic material, a second inorganic material, alkali metal phosphate, and a polymer wax are included. A composite moisture absorbent structure includes a first moisture absorbent pack including a powder type moisture absorbent and a second moisture absorbent pack including a capsule type moisture absorbent are embedded.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: June 14, 2022
    Assignee: DesiKhan Co., Ltd.
    Inventors: Sin Jong Hyung, Nak Cheon Choi, You Jin Lee, Jong Hyup Kim
  • Publication number: 20220001327
    Abstract: Provided is a dust cover having excellent moisture control performance which is applied to a car lamp. The dust cover having excellent moisture control performance has excellent lamp humidity adjustment ability, and thus, efficiently removes moisture present inside to prevent moisture dew condensation due to a rapid temperature difference beforehand, and furthermore, maintains humidity inside the lamp low to prevent corrosion or malfunction of mounted components.
    Type: Application
    Filed: September 4, 2020
    Publication date: January 6, 2022
    Inventors: Nak Cheon CHOI, Eun Young PARK, Jong Hyup KIM
  • Patent number: 11080847
    Abstract: Provided is a magnetic resonance imaging (MRI) apparatus including an acquisition unit configured to acquire an undersampled spectrum in a k-space and a reconstruction unit configured to generate a target image based on the undersampled spectrum, wherein the reconstruction unit includes: a first sub-reconstruction unit configured to perform initial reconstruction on data corresponding to unsampled positions in the k-space by using a Split Bregman algorithm or approximate sparse coding; a second sub-reconstruction unit configured to decompose the initially reconstructed spectrum in the k-space into multiple frequency bands to thereby generate a plurality of individual spectra and perform dictionary learning reconstruction on images respectively corresponding to the decomposed multiple frequency bands by alternating sparse approximation and reconstructing of measured frequencies; and an image generator configured to generate a target image by merging together the reconstructed images respectively corresponding
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Artem Sergeevich Migukin, Dmitry Alexandrovich Korobchenko, Mikhail Yurievich Sirotenko, Kirill Arthurovich Gavrilyuk, Praveen Gulaka, Sang-cheon Choi, Michail Nikolaevich Rychagov, Yang Lim Choi
  • Publication number: 20200324271
    Abstract: A moisture absorbent for a vehicle lamp includes a first inorganic material, a second inorganic material, alkali metal phosphate, and a polymer wax are included. A composite moisture absorbent structure includes a first moisture absorbent pack including a powder type moisture absorbent and a second moisture absorbent pack including a capsule type moisture absorbent are embedded.
    Type: Application
    Filed: May 31, 2019
    Publication date: October 15, 2020
    Inventors: Sin Jong HYUNG, Nak Cheon CHOI, You Jin LEE, Jong Hyup KIM
  • Publication number: 20200318826
    Abstract: An LED lamp having a metal PCB bent polyhedrally and a method for manufacturing the LED lamp is provided, where a base constituting the metal PCB has a rectangular or geometric shape and is configured to have a plurality of base stepped grooves formed spaced apart from each other on the underside thereof in such a manner as to be bent upward or downward from the base to form reflection surfaces continuously, so that at the time when both ends of the base come into contact with the plane, the base has a geometric shape in which the base is located in space through the reflection surfaces continuously arranged.
    Type: Application
    Filed: October 28, 2019
    Publication date: October 8, 2020
    Inventor: Young Cheon CHOI
  • Publication number: 20200097884
    Abstract: Disclosed is a computer program stored in a computer readable medium including encoded commands.
    Type: Application
    Filed: December 20, 2017
    Publication date: March 26, 2020
    Inventors: Bo Hoon KIM, Emil Hyunbae ZIN, Nak Cheon CHOI, Young Kun LEE, Keon KIM
  • Patent number: 10514298
    Abstract: A spectrophotometer is provided, which comprises a receiving part diffusing an incident light, a first broadband filter group, and a detector detecting the light having passed through the first broadband filter group, in order to easily select and detect a plurality of lights having specific wavelengths, wherein the first broadband filter group comprises a first broadband filter arranged to have a first angle with respect to an incident direction of light to enable the incident light to pass through a first wavelength band, a second broadband filter arranged to have a second angle, which is different from the first angle, with respect to an incident direction of light to enable the light having passed through the first broadband filter to pass through a second wavelength band, and a first path compensation means for adjusting a path of the light having passed through the second broadband filter to be identical to a path of the light having passed through the first broadband filter, wherein the first broadband
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 24, 2019
    Inventors: Seung Min Jin, Il Seung Yang, Yun Mi Bae, Seong Oak Park, Yu Sic Kim, Du Cheon Choi, Mu Hyeop Han
  • Publication number: 20190357799
    Abstract: A magnetic resonance imaging (MRI) apparatus and a method of controlling the same is disclosed. The MRI apparatus includes a magnetic field generator configured to apply a magnetic field to a head of a subject; a radio frequency (RF) coil configured to apply a pulse to the head to which the magnetic field is applied, and to receive a signal generated in the head; and a processor configured to apply a first inversion recovery pulse to the head by the RF coil, when a magnitude of longitudinal magnetization of one of white matter (WM) and gray matter (GM) of the head is in a first range, suppress a recovery signal corresponding to the longitudinal magnetization of at least one of the WM and GM among recovery signals generated according to the first inversion recovery pulse; and generate a cerebrospinal fluid (CSF) image for at least one slice based on a signal at a point where a magnitude of transverse magnetization generated in the other of the WM and GM of the head is in a second range.
    Type: Application
    Filed: October 17, 2017
    Publication date: November 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-Cheon CHOI, Dae Ho LEE
  • Patent number: 10473744
    Abstract: A magnetic resonance imaging apparatus includes: a radio frequency (RF) controller configured to control a period of an RF pulse to be applied to an object for a time period that includes a first obtaining time, during which a first inversion RF pulse is applied, and a second obtaining time; and a signal transceiver configured to sequentially receive, during the first obtaining time, a first RF signal for generating a first fluid attenuated inversion recovery (FLAIR) image regarding a first slice of the object and a second RF signal for generating at least one magnetic resonance (MR) image regarding a second slice of the object.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 12, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Sang-cheon Choi, Yun-ho Nam, Jong-ho Lee, Dae-ho Lee, Yang-su Ryu, Han Jang
  • Publication number: 20190315371
    Abstract: Disclosed herein is an apparatus for controlling standalone-type rear wheel steering (RWS), which includes a vehicle speed detection unit for detecting a vehicle speed by communicating with a sensor installed in a vehicle or an Electronic Control Unit (ECU); a steering angle and steering angular velocity detection unit for detecting steering angles and steering angular velocities of front and rear wheels by communicating with a sensor installed in the vehicle or the ECU; a master cylinder pressure detection unit for detecting a master cylinder pressure by communicating with a sensor installed in the vehicle or the ECU; and a controller for determining braking or turning of the vehicle using the information detected using the sensors or received from the ECU, calculating the amount of toe-in when the vehicle is braking or calculating a rear wheel steering angle when the vehicle is turning, and controlling the RWS based thereon.
    Type: Application
    Filed: April 11, 2019
    Publication date: October 17, 2019
    Inventor: Moon Cheon CHOI
  • Patent number: 10444314
    Abstract: An MRI apparatus includes a data acquirer configured to under-sample MR signals, respectively received from channel coils included in a radio frequency (RF) multi-coil, at non-uniform intervals to acquire pieces of data set; and an image processor configured to restore pieces of K-space data respectively corresponding to the channel coils by using a positional relationship based on a spatial distance between a reference data set among the acquired pieces of data set and at least two of data set among the acquired pieces of data set, in a K-space.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-cheon Choi
  • Patent number: 10317496
    Abstract: An MRI apparatus includes: a receive coil assembly including channels, and configured to receive an MR signal from an object; a data generator configured to generate undersampled image data on a k-space based on the MR signal; and a reconstructed image generator configured to generate a first reconstructed image from the undersampled image data using a parallel imaging method, and a second reconstructed image from the undersampled image data using compressed sensing. According to the MRI apparatus, since image reconstruction is performed using random undersampled image data, a parallel imaging method, and compressed sensing, it is possible to increase a speed of image acquisition and, at the same time, to improve the quality of images.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: June 11, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang Cheon Choi, Joon Soo Kim, Yeol Min Seong, Yang Lim Choi, Praveen Gulaka
  • Patent number: 10274563
    Abstract: Provided are an apparatus and method for sampling magnetic resonance (MR) signals received from each of a plurality of channel coils included in a radio frequency (RF) multi-coil such that intervals between two acquired signals that are adjacent in a first axis direction of a 3D K-space are non-uniform; and restoring an MR image by using the received MR signals.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sang-cheon Choi
  • Patent number: 10251584
    Abstract: Correction of a non-invasive blood glucose measurement measured from a video image. Correction includes irradiating white light on the skin, filtering the white light reflected from the skin by a first wavelength filter and a second wavelength filter, obtaining a first signal including a blood glucose signal and a pulse signal based on a video image generated by the white light filtered by the first wavelength filter, obtaining a second signal including a pulse signal based on a video image generated by the white light filtered by the second wavelength filter, obtaining a blood glucose signal by subtracting the second signal from the first signal, and calculating the amount of blood glucose in a subcutaneous blood vessel based on the obtained blood glucose signal. Moreover, fundamental blood glucose signals can be extracted in real time without collecting blood.
    Type: Grant
    Filed: November 25, 2016
    Date of Patent: April 9, 2019
    Inventors: Seung Min Jin, Il Seung Yang, Yun Mi Bae, Seong Oak Park, Yu Sic Kim, Du Cheon Choi, Mu Hyeop Han