Patents by Inventor Ji-Woong Choi

Ji-Woong 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).

  • Patent number: 10813177
    Abstract: A cooking apparatus includes a coil configured to generate a magnetic field, a driver including a first switch and a second switch and configured to change a direction of the current, a current detector configured to detect the current of the coil, a controller configured to increase a duty cycle of the first switch during a reference time when an operation start signal is transmitted thereto, control operations of the first switch and the second switch on the basis of an operating frequency when the reference time elapses, check zero cross points of currents detected while the first switch and the second switch are operated, compare a time point of the checked zero cross point to a starting time point of an turn-on operation of the first switch to determine a material of the vessel, and block the applied current when the vessel is determined to be a non-heatable vessel.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: October 20, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Ju Park, Ji Woong Choi, Sang Hyun Kang, Se Bin Im
  • Publication number: 20200325120
    Abstract: The present invention provides a quinazoline derivative or its pharmaceutically acceptable salt, a process for the preparation thereof, a pharmaceutical composition comprising the same and a use thereof. The quinazoline derivative or its pharmaceutically acceptable salt has a selective inhibitory activity against the phosphatidylinositol 3-kinase delta subunit, and therefore can be usefully applied for preventing or treating cancer, along with avoiding side effects such as lymphopenia-associated inflammatory responses.
    Type: Application
    Filed: April 26, 2017
    Publication date: October 15, 2020
    Applicant: YUHAN CORPORATION
    Inventors: Young-Hwan KIM, Tae-Dong HAN, Dong-Hoon KIM, Eun-Hye JUNG, Su-Bin CHOI, Eui-Chul LEE, Won-Ee CHONG, Jin-Hwi PARK, Jun-Chul PARK, Ho-Woong KANG, Ji-Yeong GAL, Chan-Sun PARK, Jong-Gyun KIM, Su-Youn NAM
  • Publication number: 20200297865
    Abstract: In some aspects, the invention relates to an antibody-drug conjugate, comprising an antibody; a linker; and an active agent. The antibody-drug conjugate may comprise a self-immolative group. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the active agent; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.
    Type: Application
    Filed: November 23, 2016
    Publication date: September 24, 2020
    Inventors: Yong Zu Kim, Yeong Soo Oh, Jeiwook Chae, Ho Young Song, Chul-Woong Chung, Yun Hee Park, Hyo Jung Choi, Kyung Eun Park, Hyoungrae Kim, Jinyeong Kim, Ji Young Min, Sung Min Kim, Byung Soo Lee, Dong Hyun Woo, Ji Eun Jung, Su In Lee
  • Publication number: 20200287714
    Abstract: This specification discloses a quantum public-key cryptosystem. The quantum public-key cryptosystem may use two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) satisfying a cyclic evolution. The two rotation operators R{circumflex over (n)}(?) and R{circumflex over (m)}(?) do not have a commutation relation or an anti-commutation relation with each other. The commutation relation or the anti-commutation relation is established when either of the following conditions is satisfied: ?=2i?, ?=2j?, or {circumflex over (n)}·{circumflex over (m)}=1 (i, j=integer), and ?=(2k+1)?, ?=(2l+1)?, or {circumflex over (n)}·{circumflex over (m)}=0 (k, l=integer).
    Type: Application
    Filed: January 10, 2020
    Publication date: September 10, 2020
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Sang Yun LEE, Young Wook CHO, Min Sung KANG, Ji Woong CHOI
  • Publication number: 20200228564
    Abstract: A method, performed by an observer node, of securing a network, includes: receiving a signal over the network; determining, based on a frequency characteristic of the received signal, which is determined according to a physical characteristic of a node, which transmits the received signal, a node, which has transmitted the received signal among a plurality of nodes included in the network; comparing a pre-learned signal pattern of the determined transmission node with a pattern of the received signal to determine whether the determined transmission node is a malicious node; and blocking the signal transmitted from the malicious node by determining that the transmission node is a malicious node.
    Type: Application
    Filed: March 31, 2020
    Publication date: July 16, 2020
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Ji Woong Choi, Eun Min Choi, Sung Min Han
  • Publication number: 20200209972
    Abstract: Provided is a tactile sensation recognition device according to an embodiment of the disclosure including: a receiver configured to receive tactile sensation information obtained by sensing a surface of an object through a tactile sensor; a preference determiner configured to determine whether a user prefers the received tactile sensation information, based on a user tactile function fuser(x); and a display displaying a user preference for the received tactile sensation information.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 2, 2020
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jae Eun JANG, Che ll Moon, Ji Woong Choi, Hong Soo Choi, Kyung Soo Kim, Dong Su Kim, Kwon Sik Shin, Min Kyung Sim, Do Young Lee, Sung Ho Lim
  • Patent number: 10684180
    Abstract: A pain sensing device includes a sensor array including a plurality of sensors that sense pressure generated due to a contact of an object and output electrical piezoelectric signals; and a signal processor configured to recognize the shape of the object based on the number of sensors that output the piezoelectric signals among the plurality of sensors, and to generate a pain signal according to the recognized shape of the object.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: June 16, 2020
    Assignee: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Jae Eun Jang, Kyung Hwa Lee, Minkyung Sim, Cheil Moon, Ji-Woong Choi, Hongsoo Choi
  • Publication number: 20200184877
    Abstract: A display device includes a controller to generate a start frame control signal having a first level in an active period and a second level in a blank period, a load signal toggling between the first level and the second level in the active period and having the second level in the blank period, and a data signal including image data in the active period and a training pattern in the blank period, and a data driver to recover the image data from the data signal based on an internal clock signal to provide display pixels with data voltages in the active period, and to perform a training operation for the internal clock signal using the training pattern in the data signal when both of the start frame control signal and the load signal are maintained as the second level for more than a reference time in the blank period.
    Type: Application
    Filed: December 5, 2019
    Publication date: June 11, 2020
    Inventors: Kihyun PYUN, Yunmi KIM, Ji Woong CHOI
  • Publication number: 20200146125
    Abstract: An LED lighting device according to one embodiment of the present invention comprises: an LED array; a first control unit for controlling the dimming of the LED array; a second control unit for transmitting, to the first control unit, a dimming control signal for controlling the dimming of the LED array; and a transformer comprising a primary coil and a secondary coil spaced apart from each other, wherein the first control unit is connected to the primary coil, the second control unit is connected to the secondary coil, the primary coil and the secondary coil are insulated from each other, the transformer transmits a pulse signal that repeats on/off at predetermined intervals from the first control unit to the second control unit, and, when the pulse signal transmitted from the first control unit to the second control unit via the transformer becomes off, the dimming control signal is transmitted from the second control unit to the first control unit via the transformer and is used to control the dimming of t
    Type: Application
    Filed: July 12, 2018
    Publication date: May 7, 2020
    Inventors: Ji Woong JO, Jong Hyun LEE, Jae Ho CHOI, Min Hak KIM, Min Su SEO, Seung Wan BAEK
  • Publication number: 20200059379
    Abstract: Provided is a bus network system including: a master node switch; and a plurality of slave node switches, wherein each of the plurality of slave node switches includes at least one band limit switch configured to transmit signals in a given band, and each of the plurality of slave node switches is configured to be physically on/off controlled.
    Type: Application
    Filed: August 8, 2019
    Publication date: February 20, 2020
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Ji Woong Choi, Sung Min Han, Kyu Min Kim, Eun Min Choi
  • Publication number: 20200034000
    Abstract: Provided is a method of recognizing text in a terminal, the method including generating first tag information about a kind of language set in a user interface (UI) for inputting text and a location of a cursor at a time point when a text input has started, when the UI for inputting text displayed on the terminal is executed; when a language switch request that requests the terminal to switch the kind of language set in the UI is received, generating second tag information about a kind of switched language and a location of the cursor at a time point of receiving the language switch request; when the text input is finished, storing a screen image of the terminal; and recognizing the text input to the terminal based on at least one piece of tag information and the screen image.
    Type: Application
    Filed: January 2, 2018
    Publication date: January 30, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Min-soo KIM, Hyon-sok LEE, Tae-kwon CHANG, Ji-woong CHOI, Jong-youb RYU, Hae-in CHUN
  • Patent number: 10522100
    Abstract: A method of driving a display panel includes compensating first pixel data corresponding to a first pixel of a plurality of pixels in the display panel based on at least one of a first decision, a second decision, or a third decision and generating a first data voltage corresponding to the compensated first pixel data. The first data voltage is applied to the first pixel through a data line. The first decision includes determining, based on a position of the first pixel, whether compensation for the first pixel data is required. The second decision includes determining, based on previous subpixel data and present subpixel data for the first pixel, whether the compensation for the first pixel data is required. The third decision includes determining whether the first pixel data complies with a compensation avoidance condition.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: December 31, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Won Jeong, Kwan-Young Oh, Ga-Na Kim, Gyeong-Ub Moon, Po-Yun Park, Ji-Woong Jeong, Kyung-Uk Choi, Sang-Ho Park
  • Publication number: 20190381185
    Abstract: In some aspects, the invention relates to an antibody-drug conjugate, comprising an antibody; a linker; and at least two active agents. In preferred embodiments, the linker comprises a peptide sequence of a plurality of amino acids, and at least two of the active agents are covalently coupled to side chains of the amino acids. The antibody-drug conjugate may comprise a self-immolative group, preferably two-self-immolative groups. The linker may comprise an O-substituted oxime, e.g., wherein the oxygen atom of the oxime is substituted with a group that covalently links the oxime to the active agent; and the carbon atom of the oxime is substituted with a group that covalently links the oxime to the antibody.
    Type: Application
    Filed: November 23, 2016
    Publication date: December 19, 2019
    Applicant: LegoChem Biosciences, Inc.
    Inventors: Yong Zu Kim, Yeong Soo Oh, Jeiwook Chae, Ho Young Song, Chul-Woong Chung, Yun Hee Park, Hyo Jung Choi, Kyung Eun Park, Hyoungrae Kim, Jinyeong Kim, Ji Young Min, Sung Min Kim, Byung soo Lee, Dong Hyun Woo, Ji Eun Jung, Su In Lee
  • Publication number: 20190373682
    Abstract: An induction heating cooking apparatus and a method of displaying cooking information of the induction heating cooking apparatus are provided, and more particularly, an induction heating cooking apparatus and a method of displaying cooking information of the induction heating cooking apparatus that provide cooking information to a user through a reflector positioned inside the induction heating cooking apparatus are disclosed. Some of the disclosed embodiments provide the induction heating cooking apparatus and the method of displaying cooking information of the induction heating cooking apparatus that provide the cooking information to the user using a projector and the reflector positioned inside the induction heating cooking apparatus.
    Type: Application
    Filed: November 21, 2017
    Publication date: December 5, 2019
    Inventors: Kil Young LEE, Jung Hoon KIM, Se Hoon PARK, Ji Woong CHOI
  • Patent number: 10480032
    Abstract: The present disclosure relates to a novel use of EI24, and provides a novel use of EI24 involved in the improvement of EGFR-TKI drug resistance by inhibiting IGF-1R signaling. According to the present disclosure, the presence or absence of resistance to anti-cancer drugs may be determined by detecting an expression level of EI24. In addition, resistance to anti-cancer drugs may be inhibited, delayed, or improved using EI24 or an activating agent thereof. Moreover, by regulating a pathway of EI24-mediated resistance to anti-cancer drugs, the efficacy of existing anti-cancer drugs may be enhanced, and resistance to anti-cancer drugs may be inhibited, delayed, or improved.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: November 19, 2019
    Assignee: University-Industry Foundation, Yonsei University
    Inventors: Han Woong Lee, Jung-Min Choi, Byoung Chul Cho, Yu-Ra Choi, Ji-Young Jang, Hye Ryun Kim
  • Publication number: 20190349640
    Abstract: Provided is a method of providing information about content, performed by a mobile device, the method including detecting an electronic device displaying the content, determining whether at least one search application is executed on the mobile device, as the electronic device is detected, transmitting a request for recognition information indicating at least one object related to the content to the electronic device, as the at least one search application is executed, and receiving the requested recognition information from the electronic device.
    Type: Application
    Filed: January 2, 2018
    Publication date: November 14, 2019
    Inventors: Tae-kwon CHANG, Min-soo KIM, Hyon-sok LEE, Ji-woong CHOI, Jong-youb RYU, Hae-in CHUN
  • Publication number: 20190348668
    Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.
    Type: Application
    Filed: December 15, 2017
    Publication date: November 14, 2019
    Inventors: Jin Hong KIM, Hong-Youl BAE, Mun Kyu CHO, Nam Soon CHOI, Sang-Lag LEE, Weon-Soo BAE, Yong Won LEE, Ji-Woong MOON
  • Patent number: 10455647
    Abstract: A cooking apparatus and a method for controlling the cooking apparatus are provided. The cooking apparatus includes induction heating coils that include a high power burner in which a first heating coil and a second heating coil are concentric. The cooking apparatus includes a low power burner that includes a third heating coil and a fourth heating coil, a power supply unit that includes a first AC power supply unit and a second AC power supply unit which have a different phase from each other, and a coil driving unit that provides power supplied by the first AC power supply unit to the first heating coil, and provides power supplied by the second AC power supply unit to at least one of the second heating coil, the third heating coil, and the fourth heating coil.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang Sun Yun, Dong Oh Kang, Hong-Joo Kang, Ji Woong Choi
  • Patent number: 10438764
    Abstract: Disclosed is a field emission apparatus. The apparatus comprises a cathode electrode and an anode electrode spaced apart from each other, an emitter on the cathode electrode, a gate electrode between the cathode and anode electrodes and including at least one gate aperture overlapping the emitter, and an electron transmissive sheet on the gate electrode and including a plurality of fine openings overlapping the gate aperture.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: October 8, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Young Chul Choi, Yoon-Ho Song, Hyo Jin Jeon, Jun Tae Kang, Sora Park, Jeong Woong Lee, Eunsol Go, Min-Sik Shin, Jae-Woo Kim, Jin-Woo Jeong, Ji-Hwan Yeon, Sunghee Kim
  • Patent number: D858171
    Type: Grant
    Filed: April 10, 2018
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jae-Jun Kim, Tae-Hyoung Cho, Ji-Chang Kang, Hye-Jin Yang, Jong-Su Jeon, Hwan-Woong Choi