Patents by Inventor Ji-Hoon Kwon

Ji-Hoon Kwon 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: 20220302044
    Abstract: In one example, a semiconductor device comprises a substrate comprising a conductive structure, a first electronic component over the substrate, an encapsulant over the substrate and contacting a lateral side of the first electronic component, a shield over the encapsulant and contacting a lateral side of the encapsulant and a portion of a lateral side of the substrate, and a communication structure coupled with the substrate. The substrate comprises a vertical groove side and a horizontal groove side defining a groove in the substrate, wherein a portion of the groove is uncovered by the shield. Other examples and related methods are also disclosed herein.
    Type: Application
    Filed: June 7, 2022
    Publication date: September 22, 2022
    Applicant: Amkor Technology Singapore Holding Pte. Ltd.
    Inventors: Ji Hoon Oh, Dong Hyun Bang, Soo Jin Shin, Young Ik Kwon, Tae Kyeong Hwang, Min Jae Lee, Min Jae Kong
  • Patent number: 11438136
    Abstract: An apparatus for encryption according to an embodiment of the present disclosure comprises a classifier configured to classify each data included in an original data set into one of encryption target data and non-encryption target data on the basis of at least one of determination on whether or not an operation to be applied to each data included in the original data set for an analysis of the original data set is a preset operation and determination on whether or not each data included in the original data set is sensitive information; and an encryptor configured to encrypt the encryption target data among the data included in the original data set using a homomorphic encryption algorithm.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 6, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Eun-Kyung Kim, Hyo-Jin Yoon, Duk-Jae Moon, Min-Woo Jeong, Jung-Hoon Sohn, Young-Hyun Kim, Hun-Hee Yu, Ji-Hoon Kwon
  • Patent number: 11423836
    Abstract: A display device including a first pixel area including first pixels, a second pixel area including second pixels, a third pixel area including third pixels, and a display driver configured to control image display operations of the first pixel area, the second pixel area, and the third pixel area according to a first mode or a second mode, wherein the first pixel area includes a first sub-pixel area, and a second sub-pixel area between the first sub-pixel area and the second pixel area, and wherein the first sub-pixel area is configured to display a black image in the first mode, and the second sub-pixel area is configured to display a dummy image.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: August 23, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tae Hoon Kwon, Ji Hyun Ka, Min Ku Lee, Seung Ji Cha, Hyun Uk Oh, Jin Tae Jeong
  • Publication number: 20220129547
    Abstract: A method for preventing side-channel attack according to an embodiment includes generating an order table which includes a position index value for each bit value of a bit string that is secret information to be generated through a decryption algorithm of an Nth Degree Truncated Polynomial Ring Units (NTRU) LPRime algorithm, shuffling a sort order of the position index value for the each bit value in the order table based on a random number, determining a generation order for the each bit value according to the sort order of the position index value for the each bit value in the order table, and generating the secret information through the decryption algorithm. The secret information is generated by generating the each bit value according to the determined generation order.
    Type: Application
    Filed: February 1, 2021
    Publication date: April 28, 2022
    Inventors: Ji Hoon KWON, Joo Hee LEE, Hyo Jin YOON, Ji Hoon CHO, Dong Guk HAN, Bo Yeon SIM, Il Ju KIM, Tae Ho LEE, Jae Seung HAN
  • Patent number: 11277257
    Abstract: A method for performing an operation according to one embodiment includes performing a homomorphic operation using one or more ciphertexts that are homomorphically encrypted based on an encryption key, determining a count value for a ciphertext generated through the homomorphic operation based on count values for each of the one or more ciphertexts, requesting a key management apparatus, which holds the encryption key and a decryption key corresponding to the encryption key, to re-encrypt the generated ciphertext based on the determined count value, acquiring, from the key management apparatus, a ciphertext generated by re-encrypting the generated ciphertext through decryption based on the decryption key and encryption based on the encryption key; and determining a count value for the acquired ciphertext to be a preset initial value.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: March 15, 2022
    Assignee: SAMSUNG SDS CO., LTD.
    Inventors: Eun Kyung Kim, Duk Jae Moon, Hyo Jin Yoon, Jung Hoon Sohn, Jang Hyuk Ahn, Jin Hyuck Jeong, Ji Hoon Kwon, Young Hyun Kim
  • Publication number: 20210297232
    Abstract: A method for performing an operation according to one embodiment includes performing a homomorphic operation using one or more ciphertexts that are homomorphically encrypted based on an encryption key, determining a count value for a ciphertext generated through the homomorphic operation based on count values for each of the one or more ciphertexts, requesting a key management apparatus, which holds the encryption key and a decryption key corresponding to the encryption key, to re-encrypt the generated ciphertext based on the determined count value, acquiring, from the key management apparatus, a ciphertext generated by re-encrypting the generated ciphertext through decryption based on the decryption key and encryption based on the encryption key; and determining a count value for the acquired ciphertext to be a preset initial value.
    Type: Application
    Filed: May 27, 2020
    Publication date: September 23, 2021
    Inventors: Eun Kyung KIM, Duk Jae MOON, Hyo Jin YOON, Jung Hoon SOHN, Jang Hyuk AHN, Jin Hyuck JEONG, Ji Hoon KWON, Young Hyun KIM
  • Publication number: 20210126768
    Abstract: An apparatus for encryption according to an embodiment of the present disclosure comprises a classifier configured to classify each data included in an original data set into one of encryption target data and non-encryption target data on the basis of at least one of determination on whether or not an operation to be applied to each data included in the original data set for an analysis of the original data set is a preset operation and determination on whether or not each data included in the original data set is sensitive information; and an encryptor configured to encrypt the encryption target data among the data included in the original data set using a homomorphic encryption algorithm.
    Type: Application
    Filed: October 28, 2019
    Publication date: April 29, 2021
    Inventors: Eun-Kyung Kim, Hyo-Jin Yoon, Duk-Jae Moon, Min-Woo Jeong, Jung-Hoon Sohn, Young-Hyun Kim, Hun-Hee Yu, Ji-Hoon Kwon
  • Publication number: 20210126770
    Abstract: A method according to one embodiment includes generating one or more key tables based on a first seed value; generating one or more secret values from a tweak value based on the one or more key tables; and performing encryption or decryption using the one or more secret values. An apparatus according to one embodiment includes a key table generator configured to generate one or more key tables based on a first seed value, a secret value generator configured to generate one or more secret values from a tweak value based on the one or more key tables, and an encryptor/decryptor configured to perform encryption or decryption using the one or more secret values.
    Type: Application
    Filed: October 26, 2019
    Publication date: April 29, 2021
    Inventors: Duk-Jae Moon, Ji-hoon Kwon, Joo-Young Lee