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公开(公告)号：US11362730B2
公开(公告)日：2022-06-14
申请号：US16991564
申请日：2020-08-12
Inventor： Nagwon Kwon , Hyunchae Kim , Chonghoon Kim , Seungmo Hong , Sungbin Im
Abstract: A method of operating a repeater comprises selecting some of adaptive filter coefficients among a plurality of adaptive filter coefficients of an adaptive filter used for interference cancellation, based on the size of a coefficient, generating a predicted interference signal using the selected adaptive filter coefficients and generating an interference-canceled communication signal from a received signal using the generated predicted interference signal.
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公开(公告)号：US09495992B2
公开(公告)日：2016-11-15
申请号：US14896890
申请日：2013-08-07
Inventor： Sungbin Im , Sunho Kim
IPC: G11B7/00 , G11B7/0065 , G11B20/10
CPC classification number: G11B7/0065 , G11B20/10268
Abstract: A holographic data reproduction apparatus is provided. The holographic data reproduction apparatus includes: a charged-coupled device (CCD) that photographs diffracted-light from a recording medium irradiated with reference light, wherein the diffracted-light corresponds to a data page, an operation unit that calculates an optimal threshold value by applying a fitness function (Fit) to a genetic algorithm for detecting a number of error bits of the data page corresponding to the diffracted-light, a control unit that determines an output value of each pixel of the data page based on the optimal threshold value, and a decoding unit that decodes and outputs reproduction data according to the output value of the each pixel. Accordingly, it is possible to minimize a bit error rate (BER) and accurately reproduce holographic data.
Abstract translation: 提供全息数据再现装置。 全息数据再现装置包括：从照射参考光的记录介质拍摄衍射光的电荷耦合器件（CCD），其中衍射光对应于数据页;操作单元，其通过以下步骤计算最佳阈值： 将适应度函数（Fit）应用于用于检测对应于衍射光的数据页的错误位数的遗传算法;控制单元，其基于最佳阈值确定数据页的每个像素的输出值 以及根据每个像素的输出值解码并输出再现数据的解码单元。 因此，可以最小化误码率（BER）并精确地再现全息数据。
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