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    Multiple-input multiple-output (MIMO) detector selection using neural network
    23.
    发明授权
    Multiple-input multiple-output (MIMO) detector selection using neural network 有权

    公开(公告)号：US11625610B2

    公开(公告)日：2023-04-11

    申请号：US16738455

    申请日：2020-01-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hyukjoon Kwon ,  Shailesh Chaudhari ,  Kee-Bong Song

    IPC: G06N3/08 ,  G06N3/04 ,  G06N3/084

    Abstract: A method and system for training a neural network are herein provided. According to one embodiment, a method includes generating a first labelled dataset corresponding to a first modulation scheme and a second labelled dataset corresponding to a second modulation scheme, determining a first gradient of a cost function between a first neural network layer and a second neural network layer based on back-propagation using the first labelled dataset and the second labelled dataset, and determining a second gradient of the cost function between the second neural network layer and a first set of nodes of a third neural network layer based on back-propagation using the first labelled dataset. The first set of nodes of the third neural network layer correspond to a first plurality of detector classes associated with the first modulation scheme.

    Nested lookup table for symbol detection with initial candidate reduction
    24.
    发明授权
    Nested lookup table for symbol detection with initial candidate reduction 有权

    公开(公告)号：US11296816B2

    公开(公告)日：2022-04-05

    申请号：US16993124

    申请日：2020-08-13

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Farrokh Etezadi ,  Hyukjoon Kwon ,  Jooyeol Yang

    IPC: H04L27/34 ,  H04L1/00 ,  H04L1/24

    Abstract: A method of signal demodulation includes receiving, by a signal receiver, a first signal modulated by a symbol corresponding to a point in a constellation; generating, by the signal receiver and on the basis of the first signal, a modulation estimate; identifying, by the signal receiver and on the basis of the modulation estimate, a row or column of a candidate lookup table, the row or column corresponding to a region of the constellation; reading, by the signal receiver, from the row or column of the candidate lookup table one or more candidate points of the constellation, at least one among the one or more candidate points being more distant, from a center of the region, than a point, in the constellation, not among the one or more candidate points, and demodulating, by the signal receiver and on the basis of the one or more candidate points, the first signal.

    Electronic device and method for managing electronic key thereof
    28.
    发明授权
    Electronic device and method for managing electronic key thereof 有权

    公开(公告)号：US10810811B2

    公开(公告)日：2020-10-20

    申请号：US16294084

    申请日：2019-03-06

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hyukjoon Kwon ,  Hojung Lee ,  Hyungil Lee

    IPC: G07C9/00 ,  H04W12/04 ,  E05B47/00 ,  B60R25/24 ,  H04W12/00 ,  G06F9/445

    Abstract: An electronic device and a method for managing an electronic key thereof are provided. The electronic device includes a wireless communication circuit, a hardware-based security element comprising circuitry configured to provide a timestamp, a processor operatively coupled with the communication circuit and the security element, and a memory operatively coupled with the processor. The memory stores instructions that when executed by the processor, control the electronic device to: launch an application related with an electronic key of a door lock, receive an input for using the electronic key to open the door lock through the application, determine the validity of credential information related with the input, based at least in part on the timestamp, and open the door lock based on the validity of the credential information.

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