Patents by Inventor Sang-geun Oh

Sang-geun Oh 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: 20220100830
    Abstract: Disclosed is a lock system of a device by using FIDO authentication, the lock system including: an input terminal to which a biometric FIDO authenticator registered to a relying party on the cloud is inserted; an agent which receives an authentication message from the biometric FIDO authenticator and attempts FIDO authentication to a relying party when the biometric FIDO authenticator is inserted into the input terminal and biometric information of a user registered to the relying party is input to the biometric FIDO authenticator, and generates a lock releasing signal when an authentication response is received; and an operation control unit which releases a lock so that the device is operable when the lock releasing signal is received.
    Type: Application
    Filed: December 3, 2019
    Publication date: March 31, 2022
    Applicant: EWBM Co., Ltd.
    Inventor: Stephen Sang Geun OH
  • Publication number: 20220013130
    Abstract: Disclosed is a shared AI speaker shared by a plurality of users, the shared AI speaker including: a connection unit to which a biometric FIDO authentication apparatus of each user registered in a relying party on a cloud connects; a user determination unit which attempts FIDO authentication to the relying party when biometric information of the user is input to one of the biometric FIDO authentication apparatus and is locally authenticated, and an authentication message is input to the connection unit, and determines a current user when receiving an authentication response; and a customized response unit which receives a voice command of the current user and determines and outputs a response according to a registered data of the determined current user.
    Type: Application
    Filed: December 3, 2019
    Publication date: January 13, 2022
    Applicant: EWBM Co., Ltd.
    Inventor: Stephen Sang Geun OH
  • Publication number: 20210248625
    Abstract: Disclosed is a method for authenticating a management entity by an aid entity to maintain human rights of a management object when the management entity applies to the aid entity a help of a protective management action for the management object which is difficult or impossible to do an independent living by himself/herself, the method comprising: an authentication module preparation step of registering original biometric information acquired from a biometric sensor in an authentication module of the management entity registered in an authentication server; a help application step of transmitting help application information of a protective management action for the management object to a reception server of the aid entity from a management terminal of the management entity; a biometric information input step of acquiring instantaneous biometric information from the biometric sensor and inputting the acquired instantaneous biometric information to the authentication module; a module determination processing s
    Type: Application
    Filed: February 26, 2020
    Publication date: August 12, 2021
    Inventors: Stephen Sang Geun OH, Jin-Seo LEE
  • Publication number: 20210212236
    Abstract: The present invention comprises: a base receiving heat from a heat source; a hollow cylinder-shaped fixed cylinder fixedly receiving the heat from the base, an opening thereof being closed by the base; fixed fins fixedly provided at the fixed cylinder to receive the heat from the fixed cylinder; a piston slidably blocking the inside of the fixed cylinder forming an accommodation chamber for a phase change material; and an elastic member for applying force toward the base with respect to the piston, wherein at low temperature heat, the phase change material changes a phase in a volume reducing direction, and the piston is returned to a backward position at the side of the base, and at high temperature heat, the phase change material changes the phase in a volume increasing direction, and the piston is operated to move from the backward position to a forward position.
    Type: Application
    Filed: March 15, 2019
    Publication date: July 8, 2021
    Inventors: Stephen Sang Geun OH, Ki-Yong LEE
  • Publication number: 20210012350
    Abstract: The present invention relates to an electronic approval method using biometric authentication, comprising: a biometric certificate storage step in which biometric certificates issued, encrypted and hashed by a biometric authentication server are stored and activated in biometric recognition modules of a manager and approvers; an approver list registration step in which the manager logs in to an approval server and then an approver list is registered in the approval server; an approver's approval step in which for the approval of each of the approvers to the approval server, biometric information of the approvers is input into the biometric recognition modules, the biometric certificate is transmitted to the biometric authentication server accordingly, the biometric certificate is hashed to be verified whether original or not and is decrypted to be verified by the content, and then a biometric authentication result is transmitted to the approval server; an approver's approval server log-in step in which for th
    Type: Application
    Filed: September 25, 2020
    Publication date: January 14, 2021
    Inventor: Stephen Sang Geun OH
  • Publication number: 20200286097
    Abstract: The present invention relates to an electronic approval method using biometric authentication, comprising: a biometric certificate storage step in which biometric certificates issued, encrypted and hashed by a biometric authentication server are stored and activated in biometric recognition modules of a manager and approvers; an approver list registration step in which the manager logs in to an approval server and then an approver list is registered in the approval server; an approver's approval step in which for the approval of each of the approvers to the approval server, biometric information of the approvers is input into the biometric recognition modules, the biometric certificate is transmitted to the biometric authentication server accordingly, the biometric certificate is hashed to be verified whether original or not and is decrypted to be verified by the content, and then a biometric authentication result is transmitted to the approval server; an approver's approval server log-in step in which for th
    Type: Application
    Filed: January 24, 2019
    Publication date: September 10, 2020
    Inventors: Stephen Sang Geun OH, Jin-Seo LEE
  • Publication number: 20060029224
    Abstract: A system and recording medium for securing data and methods thereof including a modular exponentiation. One embodiment includes first masking a message, second masking an exponent, and executing a modular exponentiation based at least one of the first and second maskings. Another embodiment includes first masking a message, second masking at least one exponent, executing a modular exponentiation based at least one of the first and second maskings, detecting an error, executing a modular multiplication operation based on the detection and diffusing the detected error to generate an electronic signature. Yet another embodiment includes first masking a message, second masking at least one exponent, executing a modular exponentiation based at least one of the first and second maskings, detecting an error, and generating an electronic signature based on the detected error.
    Type: Application
    Filed: August 5, 2005
    Publication date: February 9, 2006
    Inventors: Yoo-Jin Baek, Sang-geun Oh, Seo-kyu Kim
  • Patent number: 5814822
    Abstract: An ion implanter and an ion implanting method compatible for both positive and negative ions. The ion implanter has an ion extractor and a mass analyzer for deflecting ions, having one of a positive or negative charged state, in a predetermined direction regardless of the charged state of the ions. A polarity converter changes the flux direction of a magnetic field in the mass analyzer according to the charged state of the ions. Thus, shallow and deep impurity layers can be formed into wafers without changing ion implanters, such that BF.sup.+ as well as B.sup.+ or P.sup.+ can be implanted with a single ion implanter. As a result, the product yield of a semiconductor device can be improved.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: September 29, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-geun Oh, Sang-young Moon, Jeong-gon Kim, Do-hyeong Kim