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: 11317479Abstract: Disclosed herein is a cooking apparatus. The cooking apparatus includes a cooking plate, a plurality of induction heating coils installed under the cooking plate, a plurality of drivers configured to supply driving power to the plurality of induction heating coils, and a controller configured to control the plurality of drivers to drive a plurality of groups to which the plurality of induction heating coils belong, respectively. Power output by a first driver, among the plurality of drivers, which drives a first group among the plurality of groups may be increased and power output by a second driver, among the plurality of drivers, which drives a second group among the plurality of groups may be decreased.Type: GrantFiled: April 25, 2018Date of Patent: April 26, 2022Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Chang Sun Yun, Ji Woong Choi
-
Publication number: 20210267024Abstract: A cooking apparatus and a control method thereof, and more particularly, technology for determining the type of vessel placed in the cooking apparatus and controlling power in response to a state change of the placed vessel or a temperature change of a coil. In accordance with one aspect, a cooking apparatus includes: a coil on which a vessel is placed, configured to form a magnetic field upon application of a current; a detection sensor configured to detect a magnitude of an input current applied differently according to a type of the vessel and a magnitude of an input voltage of the cooking apparatus; and a controller configured to determine a type of the placed vessel according to a power value calculated based on the detected input current and input voltage, and to determine a heating mode of the cooking apparatus based on the determined type of vessel.Type: ApplicationFiled: May 24, 2019Publication date: August 26, 2021Applicants: SAMSUNG ELECTRONICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITYInventors: Ji Woong CHOI, Sang Min PARK, Byoung Kuk LEE, Eun Soo JANG, Dong Myoung JOO, Hong-Joo KANG, Nam Ju PARK, Chang Sun YUN, Hyun Kwan LEE
-
Patent number: 11006486Abstract: 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: GrantFiled: September 7, 2018Date of Patent: May 11, 2021Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Chang Sun Yun, Dong Oh Kang, Hong-Joo Kang, Ji Woong Choi
-
Patent number: 10996760Abstract: 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: GrantFiled: December 17, 2019Date of Patent: May 4, 2021Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: 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: 10935442Abstract: Provided is a pain detecting method including obtaining an electric signal from applied pressure and heat by using a sensor unit including a material exhibiting both the piezoelectric characteristic and the thermoelectric characteristic; separating a pressure signal generated by the pressure and a heat signal generated by the heat from the obtained electric signal; determining whether to generate pain data from each of the pressure signal and the heat signal; and outputting the pain data.Type: GrantFiled: September 8, 2016Date of Patent: March 2, 2021Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jae Eun Jang, Minkyung Sim, Kwon Sik Shin, Ji-Woong Choi, Cheil Moon, Hongsoo Choi
-
Patent number: 10911833Abstract: 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: GrantFiled: January 2, 2018Date of Patent: February 2, 2021Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-kwon Chang, Min-soo Kim, Hyon-sok Lee, Ji-woong Choi, Jong-youb Ryu, Hae-in Chun
-
Patent number: 10897377Abstract: 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: GrantFiled: August 8, 2019Date of Patent: January 19, 2021Assignee: DAEGU GYEONGBUK INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ji Woong Choi, Sung Min Han, Kyu Min Kim, Eun Min Choi
-
Patent number: 10866686Abstract: 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: GrantFiled: January 2, 2018Date of Patent: December 15, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Min-soo Kim, Hyon-sok Lee, Tae-kwon Chang, Ji-woong Choi, Jong-youb Ryu, Hae-in Chun
-
Publication number: 20200374988Abstract: The present disclosure relates to a cooking apparatus and a method of controlling the same, and more particularly, to a technology for reducing stress caused by a current flowing through a diode included in the cooking apparatus.Type: ApplicationFiled: November 22, 2018Publication date: November 26, 2020Inventors: Nam Ju PARK, Ji Woong CHOI, Hyun Kwan LEE
-
Patent number: 10813177Abstract: 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: GrantFiled: August 31, 2017Date of Patent: October 20, 2020Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Nam Ju Park, Ji Woong Choi, Sang Hyun Kang, Se Bin Im
-
Publication number: 20200287714Abstract: 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: ApplicationFiled: January 10, 2020Publication date: September 10, 2020Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Wook HAN, Sung Wook MOON, Yong Su KIM, Sang Yun LEE, Young Wook CHO, Min Sung KANG, Ji Woong CHOI
-
Publication number: 20200228564Abstract: 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: ApplicationFiled: March 31, 2020Publication date: July 16, 2020Applicant: Daegu Gyeongbuk Institute of Science and TechnologyInventors: Ji Woong Choi, Eun Min Choi, Sung Min Han
-
Publication number: 20200209972Abstract: 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: ApplicationFiled: December 17, 2019Publication date: July 2, 2020Applicant: Daegu Gyeongbuk Institute of Science and TechnologyInventors: 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: 10684180Abstract: 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: GrantFiled: May 18, 2018Date of Patent: June 16, 2020Assignee: Daegu Gyeongbuk Institute of Science and TechnologyInventors: Jae Eun Jang, Kyung Hwa Lee, Minkyung Sim, Cheil Moon, Ji-Woong Choi, Hongsoo Choi
-
Publication number: 20200184877Abstract: 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: ApplicationFiled: December 5, 2019Publication date: June 11, 2020Inventors: Kihyun PYUN, Yunmi KIM, Ji Woong CHOI
-
Publication number: 20200059379Abstract: 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: ApplicationFiled: August 8, 2019Publication date: February 20, 2020Applicant: Daegu Gyeongbuk Institute of Science and TechnologyInventors: Ji Woong Choi, Sung Min Han, Kyu Min Kim, Eun Min Choi
-
Publication number: 20200034000Abstract: 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: ApplicationFiled: January 2, 2018Publication date: January 30, 2020Applicant: 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: D903530Type: GrantFiled: April 15, 2019Date of Patent: December 1, 2020Assignee: MONOLITH INC.Inventors: Ji Woong Choi, Gyu Hyuk Jung, Na Young Kim
-
Patent number: D917342Type: GrantFiled: April 15, 2019Date of Patent: April 27, 2021Assignee: MONOLITH INC.Inventors: Ji Woong Choi, Gyu Hyuk Jung, Na Young Kim
-
Patent number: D923514Type: GrantFiled: April 15, 2019Date of Patent: June 29, 2021Assignee: MONOLITH INC.Inventors: Ji Woong Choi, Gyu Hyuk Jung, Na Young Kim