Patents by Inventor Kyu Young Choi
Kyu Young 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).
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Patent number: 11975855Abstract: A propulsion module of an air mobility vehicle may include a door provided in the housing and opening or closing the opening portion of the housing by a sliding motion of the door; a propeller for providing propulsion to the air mobility vehicle; a link assembly having a first end portion connected to the housing and a second end portion connected to the propeller to pull the propeller into the internal space of the housing through the opening portion or pull the propeller outside the internal space through the opening portion; and a door opening and closing portion coupled to the door and configured for providing an opening and closing force to the door according to an inward-pulling motion or an outward-pulling motion of the propeller.Type: GrantFiled: August 20, 2021Date of Patent: May 7, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Chung Sik Yim, Yong Hyun Nam, Jae Young Choi, Sang Hyun Jung, Dae Hee Lee, Jae Seung Lee, Kyu Hoon Cho
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Patent number: 11970493Abstract: The present disclosure provides autotaxin (ATX) inhibitor compounds and compositions including said compounds. The present disclosure also provides methods of using said compounds and compositions for inhibiting ATX. Also provided are methods of preparing said compounds and compositions, and synthetic precursors of said compounds.Type: GrantFiled: October 4, 2021Date of Patent: April 30, 2024Assignee: ILDONG PHARMACEUTICAL CO., LTD.Inventors: Sung-Ku Choi, Yoon-Suk Lee, Sung-Wook Kwon, Kyung-Sun Kim, Jeong-Geun Kim, Jeong-Ah Kim, An-Na Moon, Sun-Young Park, Jun-Su Ban, Dong-Keun Song, Kyu-Sic Jang, Ju-Young Jung, Soo-Jin Lee
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Publication number: 20240120224Abstract: A semiconductor manufacturing equipment may include a process chamber for treating a substrate; a front-end module including a first transfer robot, wherein the first transfer robot may be configured to transport the substrate received in a container; a transfer chamber between the front-end module and the process chamber, wherein the transfer chamber may be configured to load or unload the substrate into or out of the process chamber; and a cassette capable of receiving a replaceable component capable of being used in the process chamber. The front-end module may include a seat plate configured to move in a sliding manner so as to retract or extend into or from the front-end module. The cassette may be configured to be loaded into the front-end module while the cassette is seated on the seat plate.Type: ApplicationFiled: September 12, 2023Publication date: April 11, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Jin Hyuk CHOI, Beom Soo HWANG, Kong Woo LEE, Myung Ki SONG, Ja-Yul KIM, Kyu Sang LEE, Hyun Joo JEON, Nam Young CHO
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Patent number: 11939240Abstract: A sterilizing device includes a pipe having an inlet and an outlet and allowing fluid to move therethrough and a light source provided on one side of the pipe and providing light to the fluid. At least a portion of the pipe is provided in a spiral shape and the inlet and/or the outlet are arranged in a light emitting region.Type: GrantFiled: December 21, 2022Date of Patent: March 26, 2024Assignee: SEOUL VIOSYS CO., LTD.Inventors: Jae Young Choi, Shi Hyun Ahn, Ki Yon Park, Woong Ki Jeong, Kyu Won Han
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Patent number: 11939239Abstract: A sterilization module including a light source configured to irradiate ultraviolet light, a board on which the light source is mounted, a protective tube accommodating the board therein and configured to transmit ultraviolet light irradiated from the light source, a first base coupled to one side of the protective tube, and a second base coupled to the other side of the protective tube, in which at least one of the first base and the second base includes an insertion part to be inserted into the protective tube, the insertion part having a first diameter when viewed in a first cross-section perpendicular to a length direction of the protective tube, and a cover part integrally formed on the insertion part and having a second diameter greater than the first diameter in the first cross-section.Type: GrantFiled: April 13, 2018Date of Patent: March 26, 2024Assignee: Seoul Viosys Co., Ltd.Inventors: Jae Young Choi, Woong Ki Jeong, Kyu Won Han, Yeo Jin Yoon
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Patent number: 11706032Abstract: A method for user authentication according to one embodiment of the present disclosure includes acquiring authentication information including biometric information of a user, generating a random string and a helper string from the biometric information, generating a secret value that corresponds to the authentication information, generating a private key and a public key using the secret value and the random string, and transmitting the public key to an authentication server.Type: GrantFiled: October 26, 2019Date of Patent: July 18, 2023Assignee: SAMSUNG SDS CO., LTD.Inventors: Kyu-Young Choi, Hee-Jin Park, Ji-Hoon Cho
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Publication number: 20230130882Abstract: A learning with errors (LWE) instance management method according to an embodiment may include obtaining, from one or more user devices among a plurality of user devices, one or more learning with errors (LWE) instances and one or more extended LWE instances including reuse tags associated with the LWE instances, storing the one or more extended LWE instances, receiving, from a first device among the plurality of user devices, a request for an LWE instance produced by a second device among the plurality of user devices, and identifying, based on a reuse tag included in each of the one or more extended LWE instances, a target extended LWE instance including an LWE instance produced by the second device among the one or more extended LWE instances, and providing the LWE instance included in the target extended LWE instance to the first device.Type: ApplicationFiled: October 25, 2022Publication date: April 27, 2023Inventors: Joohee LEE, Eunkyung KIM, Kyu Young CHOI
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Patent number: 11632233Abstract: A method of generating a cryptographic algorithm according to one embodiment of the present disclosure includes generating one or more key tables on the basis of a seed value; generating a first transformation function that converts an input bit string, which is input to one of input branches of a Feistel structure, into a first random bit string having a length that extends beyond a length of the input bit string; generating a second transformation function that converts a second random bit string generated by referencing the one or more key tables into a third random bit string having a length that is the same as the length of the input bit string; and generating a block cryptographic algorithm of a Feistel structure which includes a round function to which the one or more key tables, the first transformation function, and the second transformation function are applied.Type: GrantFiled: October 25, 2019Date of Patent: April 18, 2023Assignees: SAMSUNG SDS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Duk-Jae Moon, Kyu-Young Choi, Joo-Young Lee
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Patent number: 11632234Abstract: A method of generating a cryptographic algorithm includes generating at least one key table on the basis of a seed value; generating, by using a round tweak bit string and an input bit string that is input to one of input branches of a Feistel structure, a first transformation function converting the input bit string into a first random bit string having a length that extends beyond a length of the input bit string, generating a second transformation function converting a second random bit string generated by referencing the one or more key tables into a third random bit string having a length that is the same as the length of the input bit string, and generating a block cryptographic algorithm of a Feistel structure which includes a round function to which the one or more key tables, the first transformation function, and the second transformation function are applied.Type: GrantFiled: October 25, 2019Date of Patent: April 18, 2023Assignees: SAMSUNG SDS CO., LTD., Korea Advanced Institute of Science and TechnologyInventors: Duk-Jae Moon, Kyu-Young Choi, Joo-Young Lee
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Patent number: 11509460Abstract: A method for performing a matrix multiplication operation being secure against side-channel attacks according to one embodiment, which is performed by a computing device comprising one or more processors and a memory storing one or more programs to be executed by the one or more processors, includes shuffling an order of execution of multiplication operations between elements of a first matrix and elements of a second matrix for a matrix multiplication operation between the first matrix and the second matrix; and performing the matrix multiplication operation based on the shuffled order of execution.Type: GrantFiled: October 26, 2019Date of Patent: November 22, 2022Assignees: SAMSUNG SDS CO.. LTD., Kookmin University Industry Academnv Cooperation FoundationInventors: Kyu-Young Choi, Duk-Jae Moon, Ji-Hoon Cho, Dong Guk Han, Bo Yeon Sim, Jae Geun Moon, Ae Sun Park
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Patent number: 11329798Abstract: An apparatus for set intersection operation according to an embodiment includes a ciphertext acquisition unit configured to acquire a ciphertext for a first vector corresponding to a first subset of a universal set including a plurality of elements from an encryption apparatus, a transform unit configured to generate a second vector corresponding to a second subset of the universal set, a computation unit configured to generate a ciphertext for a third vector corresponding to an intersection of the first subset and the second subset, based on the ciphertext for the first vector and the second vector, and a ciphertext providing unit configured to provides the ciphertext for the third vector to the encryption apparatus.Type: GrantFiled: October 26, 2020Date of Patent: May 10, 2022Assignee: SAMSUNG SDS CO., LTD.Inventors: Jin Hyuck Jeong, Joo Hee Lee, Eun Kyung Kim, Kyu Young Choi, Duk Jae Moon, Hyo Jin Yoon
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Patent number: 11102241Abstract: An apparatus and method for performing an operation which are secure against side-channel attack are provided. According to one embodiment of the present disclosure, the apparatus includes a first outputter configured to output a first output value corresponding to a seed value using a first parameter candidate value set, a second outputter configured to output a second output value using a second parameter candidate value set wherein the second output value corresponds to the seed value and is capable of being generated using the first output value, a third outputter configured to output a third output value using the seed value and the first output value, and a fourth outputter configured to output a fourth output value using the second output value and the third output value, wherein the fourth output value is capable of being generated using the seed value.Type: GrantFiled: October 15, 2018Date of Patent: August 24, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Kyu-Young Choi, Duk-Jae Moon, Hyo-Jin Yoon, Ji-Hoon Cho
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Patent number: 11101994Abstract: A method of provisioning key information and a device using the method are provided. The method of provisioning key information according to one embodiment of the present disclosure includes generating key information for encryption and decryption from seed information using a key information generation algorithm and deleting code that corresponds to the key information generation algorithm from the device based on the generation of the key information.Type: GrantFiled: August 30, 2018Date of Patent: August 24, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Hyo-Jin Yoon, Kyu-Young Choi, Duk-Jae Moon, Ji-Hoon Cho
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Publication number: 20210194671Abstract: An apparatus for set intersection operation according to an embodiment includes a ciphertext acquisition unit configured to acquire a ciphertext for a first vector corresponding to a first subset of a universal set including a plurality of elements from an encryption apparatus, a transform unit configured to generate a second vector corresponding to a second subset of the universal set, a computation unit configured to generate a ciphertext for a third vector corresponding to an intersection of the first subset and the second subset, based on the ciphertext for the first vector and the second vector, and a ciphertext providing unit configured to provides the ciphertext for the third vector to the encryption apparatus.Type: ApplicationFiled: October 26, 2020Publication date: June 24, 2021Inventors: Jin Hyuck JEONG, Joo Hee LEE, Eun Kyung KIM, Kyu Young CHOI, Duk Jae MOON, Hyo Jin YOON
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Patent number: 11042954Abstract: A system and method for communication between devices are provided. According to the embodiments of the present disclosure, it is possible to easily authenticate a counterpart device using a one-time key HN(T) for a D2D communication between a first device and a second device, without using a separate secure channel (e.g., secure sockets layer (SSL), transport layer security (TLS), or the like) in an environment where it is difficult to synchronize the first device with the second device without intervention of a server.Type: GrantFiled: May 1, 2018Date of Patent: June 22, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Hyo-Jin Yoon, Kyu-Young Choi, Duk-Jae Moon, Ki-Young Kim, Jang-Hyuk Ahn, Ji-Hoon Cho
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Patent number: 11012424Abstract: An authentication system and method are provided. According to the embodiments of the present disclosure, it is possible to provide a secure authentication service capable of maintaining personal privacy by enabling authentication while preventing personal information used for personal authentication, such as biometric information, from being exposed in the authentication process.Type: GrantFiled: October 26, 2018Date of Patent: May 18, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Kyu-Young Choi, Ji-Hoon Cho, Hyo-Jin Yoon, Duk-Jae Moon
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Patent number: 10999056Abstract: An apparatus and method for performing operation being secure against side channel attack are provided. The apparatus and method generate values equal to values obtained through an exponentiation operation or a scalar multiplication operation of a point using values extracted from previously generated parameter candidate value sets and an operation secure against side-channel attack, thereby improving security against side-channel attack without degrading performance.Type: GrantFiled: January 4, 2018Date of Patent: May 4, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Kyu-Young Choi, Duk-Jae Moon, Hyo-Jin Yoon, Ji-Hoon Cho
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Publication number: 20210105134Abstract: A method for performing a matrix multiplication operation being secure against side-channel attacks according to one embodiment, which is performed by a computing device comprising one or more processors and a memory storing one or more programs to be executed by the one or more processors, includes shuffling an order of execution of multiplication operations between elements of a first matrix and elements of a second matrix for a matrix multiplication operation between the first matrix and the second matrix; and performing the matrix multiplication operation based on the shuffled order of execution.Type: ApplicationFiled: October 26, 2019Publication date: April 8, 2021Inventors: Kyu-Young Choi, Duk-Jae Moon, Ji-Hoon Cho, Dong Guk HAN, Bo Yeon SIM, Jae Geun MOON, Ae Sun PARK
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Publication number: 20210105139Abstract: A method for user authentication according to one embodiment of the present disclosure includes acquiring authentication information including biometric information of a user, generating a random string and a helper string from the biometric information, generating a secret value that corresponds to the authentication information, generating a private key and a public key using the secret value and the random string, and transmitting the public key to an authentication server.Type: ApplicationFiled: October 26, 2019Publication date: April 8, 2021Inventors: Kyu-Young Choi, Hee-Jin Park, Ji-Hoon Cho
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Patent number: 10965454Abstract: Disclosed are an apparatus and method for public key encryption using a white-box cipher algorithm. An apparatus for public key encryption using a white-box cipher algorithm includes a key table generator configured to generate at least one key table from a cipher key, a hidden-key table generator configured to convert the at least one key table into at least one hidden-key table, and an encryption algorithm generator configured to generate a white-box implemented encryption algorithm by using the at least one hidden-key table and an inverse operation of the conversion and provide the generated encryption algorithm as a public key for encryption.Type: GrantFiled: May 4, 2017Date of Patent: March 30, 2021Assignee: SAMSUNG SDS CO., LTD.Inventors: Duk-Jae Moon, Kyu-Young Choi, Ji-Hoon Cho