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    DYNAMIC RANDOM ACCESS MEMORY DEVICE WITH LONG RETENTION AND OPERATING METHOD THEREOF
    231.
    发明申请
    DYNAMIC RANDOM ACCESS MEMORY DEVICE WITH LONG RETENTION AND OPERATING METHOD THEREOF 有权

    公开(公告)号：US20220270660A1

    公开(公告)日：2022-08-25

    申请号：US17674301

    申请日：2022-02-17

    Applicant: Korea Advanced Institute of Science and Technology

    Inventor： Yang-Kyu CHOI ,  Myung-Su KIM

    IPC: G11C11/404 ,  G11C11/4096

    Abstract: Disclosed are a DRAM device capable of storing charges for a long time and an operating method thereof. According to an embodiment, a DRAM device includes a channel region formed on a substrate, a gate insulating film region formed on the channel region, a floating gate region formed on the gate insulating film region, a transition layer region formed on the floating gate region, and a control gate region formed on the transition layer region and generating a potential difference with the floating gate region in response to a fact that a potential that is not less than a reference potential is applied and releasing at least one charge stored in the floating gate region or storing the at least one charge into the floating gate region, by generating a transition current due to the potential difference.

    Security system and method thereof using both KMS and HSM
    235.
    发明授权
    Security system and method thereof using both KMS and HSM 有权

    公开(公告)号：US11411719B2

    公开(公告)日：2022-08-09

    申请号：US16985266

    申请日：2020-08-05

    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Dongsu Han ,  Juhyeng Han ,  Seongmin Kim

    IPC: H04L29/06 ,  H04L9/08 ,  H04L9/32

    Abstract: The present disclosure in some embodiments provides a security system using both key management service (KMS) and a hardware security module (HSM), and a method of operating the security system. At least one embodiment provides a security system including an HSM, a bootstrapping enclave, and one or more KMS enclaves. The HSM is configured to generate, replace or remove a root key, the HSM being physically independent. The bootstrapping enclave is configured to receive the root key from the HSM. The one or more KMSs are configured to perform an attestation procedure with the bootstrapping enclave, to receive the root key from the bootstrapping enclave, and to utilize the root key for establishing a secure channel with the HSM.

    Surgical navigation system
    240.
    发明授权
    Surgical navigation system 有权

    公开(公告)号：US11382698B2

    公开(公告)日：2022-07-12

    申请号：US16345506

    申请日：2017-10-18

    Applicant: Kyungpook National University Industry-Academic Cooperation Foundation ,  Korea Advanced Institute of Science and Technology

    Inventor： Jun Young Kim ,  Min Kyu Je ,  Anna Seo ,  Shin Yoon Kim ,  Hyun Deok Kim ,  Hyun Mun Kim

    IPC: A61B5/00 ,  A61B34/20 ,  A61B90/00 ,  A61F2/32

    Abstract: A surgical navigation system according to one embodiment may comprise: an electromagnetic wave generation unit; a first detection unit attached to a surgical site of an object to detect a position attached to the surgical site; a second detection unit installed in a patient-specific surgical guide instrument inserted into the surgical site to receive the electromagnetic wave and detect the position of the patient-specific surgical guide instrument; a third detection unit installed in the surgical instrument inserted into the surgical site to detect the position of the surgical instrument; an information processing unit for registering the position of the first detection unit and the position of the third detection unit and for tracking the position of the surgical instrument on the basis of the position of the first detection unit attached to the surgical site, by setting the position of the patient-specific surgical guide instrument as a reference position when the patient-specific surgical guide instrument is inserted into the surgical site; and a display unit for displaying information including the positions of the object and the patient-specific surgical guide instrument and the position of the surgical instrument.

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