Patents by Inventor Chang-Hoon Choi

Chang-Hoon 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: 20200059677
    Abstract: Provided is a method, performed by a terminal, of providing content includes determining whether at least one content is included in preference content, based on information about the at least one content provided to the terminal and preference information of a user of the terminal about content; content, which is not included in the preference content, is present in the at least one content, transmitting, to a server, a request to change the first content to second content included in the preference content based on previously stored information about the preference content; and outputting the second content received from the server, in response to the request.
    Type: Application
    Filed: February 9, 2018
    Publication date: February 20, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Pil-kyu PARK, Kwang-pyo CHOI, Woong-il CHOI, Myung-ho KIM, Sung-chan KIM, Jeong-hoon PARK, Hee-chul YANG, Chang-hyun LEE
  • Publication number: 20200057107
    Abstract: A system of predicting a failure rate of a contactor before the generation of a failure by counting a lifespan index of the contactor based on normality of through-currents of a primary side and a secondary side of the contactor, and determining that a failure rate of the contactor increases when a count value for an abnormal through-current exceeds a predetermined threshold value.
    Type: Application
    Filed: September 28, 2018
    Publication date: February 20, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Hyunki CHO, Chang Hyun SUNG, Sang Hoon LEE, Yean Sik CHOI
  • Patent number: 10566038
    Abstract: A method of controlling on-die termination (ODT) in a multi-rank system including a plurality of memory ranks is provided. The method includes: enabling ODT circuits of the plurality of memory ranks into an initial state when the multi-rank system is powered on; enabling the ODT circuits of a write target memory rank and non-target memory ranks among the plurality of memory ranks during a write operation; and disabling the ODT circuit of a read target memory rank among the plurality of memory ranks while enabling the ODT circuits of non-target memory ranks among the plurality of memory ranks during a read operation.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-Hoon Son, Si-Hong Kim, Chang-Kyo Lee, Jung-Hwan Choi, Kyung-Soo Ha
  • Patent number: 10548500
    Abstract: An apparatus for measuring bioelectrical signals is provided. The apparatus includes a sensor electrode, a sensor support, and a main body. The sensor electrode has a tapering portion that narrows toward one end and a protruding portion that extends from the one end of the tapering portion, contacts a body part, and senses bioelectrical signals. The sensor support maintains the contact between the sensor electrode and the body part. The main body is connected to the sensor support and is wearable on a living body.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Se-hoon Lim, Jun-hyung Park, Hee-jae Jo, Jang-beom Yang, Jae-min Jung, Eun-mi Oh, Jong-ho Choi, Jun-ho Koh, Chang-Hyun Lee, Yong-hyun Lim, Hae-in Chun
  • Publication number: 20200032080
    Abstract: Provided is a composition for surface treatment of a steel sheet, the composition having excellent resistance to an acid, such as sulfuric acid, and to a coated steel sheet to which the composition for surface treatment is applied, wherein the composition for surface treatment comprises 30-50% wt % of colloidal silica containing 5-20 nm-sized silica, 40-60% wt % of silane containing three or more alkoxy groups, 5-15 wt % of an acrylate-based organic monomer, 0.01-1 wt % of an acid, and 1-15 wt % of a solvent.
    Type: Application
    Filed: September 28, 2017
    Publication date: January 30, 2020
    Inventors: Chang-Hoon CHOI, Dong-Yun KIM, Min-Ho JO, Jae-Duck KO, Won-Ho SON, Jong-Hwa KIM
  • Publication number: 20200015690
    Abstract: An apparatus for obtaining bio-information may include a pulse wave sensor including a light source and a detector. The light source is configured to emit multi-wavelength light to an object of interest and the detector is configured to detect light reflected from the object. In addition, the apparatus may include a processor configured to obtain a change in volume of a blood vessel based on one or more of quantity of detected multi-wavelength light and absorbance coefficients of respective wavelengths of the multi-wavelength light and obtain bio-information based on the measured change in volume of the blood vessel.
    Type: Application
    Filed: January 22, 2019
    Publication date: January 16, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: CHANG MOK CHOI, BYUNG HOON KO, JONG WOOK LEE, YOUN HO KIM, YOUNG SOO KIM, JEONG EUN HWANG
  • Publication number: 20200006815
    Abstract: Provided is an apparatus for assigning identification information to a plurality of slave battery management units. The apparatus assigns different identification information to a plurality of slave battery management units. The apparatus includes: a casing jig configured to at least partially cover the plurality of slave battery management units; a wireless communication unit including a plurality of antennas disposed so as to correspond one-to-one to the plurality of slave battery management units; and a controller configured to control the wireless communication unit so as to transmit a wireless signal including different identification information to the plurality of slave battery management units.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 2, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Ji-Won HWANG, Yean-Sik CHOI, Ji-Eun KIM, Chang-Hyun SUNG, Sang-Hoon LEE
  • Publication number: 20190386777
    Abstract: A receiving apparatus includes: a first decoder configured to decode a signal transmitted through a first layer from a layered division multiplexing (LDM) signal using a parity check matrix to generate low density parity check (LDPC) information word bits and parity bits; an encoder configured to encode the LDPC information word bits, generated by decoding the signal transmitted through the first layer, using the parity check matrix to generate parity bits corresponding only to preset columns in the parity check matrix; and a second decoder configured to decode a signal obtained by removing, from the LDM signal, a signal corresponding to the LDPC information word bits generated by decoding the signal transmitted through the first layer, the parity bits generated by the encoder, and the parity bits generated by the first decoder except the parity bits generated by the encoder, thereby to generate information word bits transmitted through a second layer.
    Type: Application
    Filed: August 29, 2019
    Publication date: December 19, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun Park, Jung-pil Yu, Sung-kyu Jung, Chang-hoon Choi
  • Publication number: 20190373033
    Abstract: A transmitting apparatus is provided. The transmitting apparatus includes: an L1 signaling generator configured to generate L1 signaling including first information and second information; a frame generator configured to generate a frame including a payload including a plurality of sub frames; and a signal processor configured to insert a preamble including the L1 signaling in the frame and transmit the frame. The first information includes information required for decoding a first sub frame among the plurality of sub frames. Therefore, a processing delay in a receiving apparatus is reduced.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 5, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-hyun PARK, Min-ho Kim, Sung-woo Park, Sung-kyu Jung, Chang-hoon Choi, Doo-chan Hwang
  • Publication number: 20190357780
    Abstract: A bio-signal measurement apparatus may include a first substrate and a second substrate, an optical sensor mounted in the first substrate, a force sensor disposed on or below the first substrate, and a separation structure interposed between the first substrate and the second substrate so as to prevent transmission of a force between the first substrate and the second substrate. An upper surface of the first substrate and an upper surface of the second substrate may be provided at the same level.
    Type: Application
    Filed: May 24, 2019
    Publication date: November 28, 2019
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Byung Hoon KO, Yong Joo KWON, Young Soo KIM, Sang Yun PARK, Jong Wook LEE, Chang Mok CHOI, Jae Min KANG, Youn Ho KIM
  • Publication number: 20190353072
    Abstract: A selective catalytic reduction (SCR) system having a catalytic layer. The SCR includes a plurality of baffle members located in a position spaced apart from a front end of the catalytic layer, the plurality of baffle members reduces a flow deviation due to enlargement of a flow cross-section of a fluid in at least one direction, each of the plurality of baffle members includes a first part and a second part, the first part and the second part of each of the plurality of baffle members extends in an orthogonal direction with respect to the at least one direction of enlargement of the flow cross-section, the first part and the second part are integrated, and each of the plurality of baffle members protrudes in an inlet direction of the fluid.
    Type: Application
    Filed: January 9, 2018
    Publication date: November 21, 2019
    Inventors: Junyoung LEE, Jong Hyuk PARK, Jun Won CHOI, Chang Hun YU, Ye Hoon IM
  • Publication number: 20190354226
    Abstract: Disclosed is an electronic device. The electronic device according to an embodiment may include a display including a touch sensor, a fingerprint sensor formed in at least a partial area of the display, a processor and a control circuit that controls the touch sensor. The control circuit may detect an input related to an external object through the at least a partial area while the processor is in a low power state, determine whether the external object is an input related to the fingerprint sensor, when the external object is not an input related to the fingerprint sensor, discard the input of the external object, and when the external object is an input related to the fingerprint sensor, emit light through a display area at least including the at least partial area in the low power state. In addition, various embodiments understood through the disclosure may be possible.
    Type: Application
    Filed: January 31, 2018
    Publication date: November 21, 2019
    Inventors: Jung Hoon CHOI, Chang Jin KIM, Man Sung KIM
  • Publication number: 20190356025
    Abstract: A battery module equalization apparatus according to the present disclosure includes a plurality of slave controllers each electrically connected to the plurality of battery modules to measure voltage values of the plurality of battery modules, and having a slave charging/discharging channel through which the current that charges and discharges each battery module flows, and a master controller that receives the voltage value of each battery module from the plurality of slave controllers, selects at least one of the plurality of slave controllers based on the received voltage value, and transmits a CHARGE or DISCHARGE command to the at least one selected slave controller, and having a master charging/discharging channel through which the charging current supplied to the at least one slave controller and the discharging current supplied from the at least one slave controller flow.
    Type: Application
    Filed: July 5, 2018
    Publication date: November 21, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Chang-Hyun SUNG, Sang-Hoon LEE, Yean-Sik CHOI
  • Patent number: 10456707
    Abstract: The present invention relates to a reactor, and according to one aspect of the present invention, there is provided a reactor comprising a housing provided with a reaction space, a tube disposed inside the housing, an impeller provided inside the housing to allow reactants in the reaction space to flow into and out of the tube and a nozzle provided to spray a liquid from the reaction space toward the housing wall surface side.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: October 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Dae Hun Kim, Jun Won Choi, Seung Hyun Yoon, Ye Hoon Im, Chang Hoon Kang, Myeong Yeon Keum, Seong Gu Kim
  • Publication number: 20190323973
    Abstract: An inspection apparatus for a semiconductor process and a semiconductor process device, the inspection apparatus including a transferer configured to transfer a process object between a plurality of chambers; at least one line camera installed above the transferer, the at least one line camera being configured to generate an original image by capturing an image of the process object transferred by the transferer; and a controller configured to receive the original image and to perform an inspection of the process object by correcting distortion of the original image due to a change in transfer speed of the transferer.
    Type: Application
    Filed: January 8, 2019
    Publication date: October 24, 2019
    Inventors: Myung Ho JUNG, Young Su RYU, Sung Chai KIM, Jong Su KIM, Won Guk SEO, Chang Hoon CHOI, Jeong Su HA
  • Publication number: 20190315181
    Abstract: A vehicle height adjusting device which adjusts vehicle height between a vehicle body and a lower arm, may include a suspension spring provided between the vehicle body and the lower arm; a variable portion provided inside an internal diameter of the suspension spring, and whose length is variable by converting a rotary driving motion around an axial direction into an axial rectilinear motion; and a power portion which is provided on the vehicle body, and rotates the variable portion.
    Type: Application
    Filed: September 24, 2018
    Publication date: October 17, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation, ILJIN Co., Ltd, HYUNDAI MOBIS CO., LTD
    Inventors: Chang Sin LEE, Sang Hoon YOO, Byung Kyu LEE, lg Jin KWON, Won Hyok CHOI
  • Publication number: 20190316612
    Abstract: A baffle apparatus for improving a flow deviation of a fluid due to the enlargement of a flow cross-section of the fluid including a plurality of baffle members. Each of the plurality of baffle members has a first part into which the fluid enters and a second part from which the fluid flows out, the first part and the second part are integrated, the first part of each of the plurality of baffle members is at a position where the flow cross-section of the fluid is enlarged and the second part of each of the plurality of baffle members is at the position where the flow cross-section of the fluid is constant, and ends of the first parts are spaced apart from each other by a distance satisfying the equation: d i = D f ? ( i ) ? ? i = 1 n ? 1 f ? ( i ) , and the second parts are spaced apart from each other by a uniform distance.
    Type: Application
    Filed: January 17, 2018
    Publication date: October 17, 2019
    Inventors: Junyoung LEE, Jun Won CHOI, Chang Hun YU, Ye Hoon IM
  • Patent number: D870333
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 17, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang-Hoon Choi, Tae-Hoon Kim
  • Patent number: D870334
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 17, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang-Hoon Choi, Tae-Hoon Kim
  • Patent number: D870335
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: December 17, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Chang-Hoon Choi, Tae-Hoon Kim