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    Memory controller, memory system including the same, and method of operating the same
    31.
    发明授权
    Memory controller, memory system including the same, and method of operating the same 有权

    公开(公告)号：US11675504B2

    公开(公告)日：2023-06-13

    申请号：US17224573

    申请日：2021-04-07

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Myeongjong Ju ,  Seungjae Lee ,  Jisoo Kim

    IPC: G06F3/06

    CPC classification number: G06F3/0623 ,  G06F3/0655 ,  G06F3/0679

    Abstract: A memory controller includes a key generator, an encryption and decryption circuit, and a processor. The key generator generates a first security key and a second security key based on a write request from a host. The encryption and decryption circuit encrypts write data corresponding to the write request based on the first security key to generate encrypted write data, and encrypts the first security key based on the second security key to generate a first encrypted security key. The processor controls nonvolatile memories such that the encrypted write data, the first encrypted security key, and the second security key are programmed in at least one of the nonvolatile memories, and controls the nonvolatile memories such that a dummy program operation is performed on a page of the nonvolatile memories in which the second security key is programmed instead of erasing the encrypted write data.

    APPARATUS AND METHOD FOR MEASURING VISUAL ACUITY BY USING FOCUS-TUNABLE LENS
    33.
    发明申请
    APPARATUS AND METHOD FOR MEASURING VISUAL ACUITY BY USING FOCUS-TUNABLE LENS 有权

    公开(公告)号：US20230036308A1

    公开(公告)日：2023-02-02

    申请号：US17874958

    申请日：2022-07-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Kyookeun Lee ,  Harry Edward Milton ,  Seungjae Lee

    IPC: G02B3/14 ,  G02C7/08

    Abstract: Provided are an apparatus and method for measuring a visual acuity (VA) by using a focus-tunable lens. The apparatus includes a display engine, an image combiner, a focus-tunable lens provided on a path of the light guided by the image combiner, an input device, and a processor configured to control the focus-tunable lens to assign different first and second optical powers to first and second lens regions, respectively, on a lens surface of the focus-tunable lens, control the display engine to display a VA measuring image through first and second output regions of the image combiner, control the input device to receive a user's input with respect to the VA measuring image, specify one optical power of the first and second optical powers based on the user's input, and determine a VA of a user based on the specified optical power.

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