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    FUNCTION APPROXIMATION DEVICE AND METHOD USING MULTI-LEVEL LOOK-UP TABLE
    5.
    发明公开
    FUNCTION APPROXIMATION DEVICE AND METHOD USING MULTI-LEVEL LOOK-UP TABLE 审中-实审

    公开(公告)号：EP4375855A1

    公开(公告)日：2024-05-29

    申请号：EP22846116.6

    申请日：2022-07-12

    申请人： SAPEON Korea Inc.

    发明人： HAN, Jeong Ho

    IPC分类号： G06F17/17 ,  G06F5/01

    CPC分类号： G06F5/01 ,  G06F17/17

    摘要： A method and an apparatus are disclosed for a function approximation using a multi-level lookup table. The function approximation device and the method approximate function values for a function in multiple stages using a multi-level lookup table (LUT) in approximating nonlinear function values based on piecewise linear approximation or piecewise polynomial approximation. In the multi-level LUT, a segment length is set differently depending on the amount of change in the function in order to reduce approximation errors.

    INDEXING ELEMENTS IN A SOURCE ARRAY
    9.
    发明公开
    INDEXING ELEMENTS IN A SOURCE ARRAY 审中-公开

    公开(公告)号：EP3910470A2

    公开(公告)日：2021-11-17

    申请号：EP21173770.5

    申请日：2021-05-13

    申请人： Imagination Technologies Limited

    发明人： AHMADI, Aria ,  DIKICI, Cagatay

    IPC分类号： G06F9/345 ,  G06F17/17 ,  G06T1/60

    摘要： A hardware-implemented method of indexing data elements in a source array is provided. The method comprises generating (210) a number of shifted copy arrays; receiving (220) indices for indexing the source array; and retrieving (230) one or more data elements from the shifted copy arrays, according to the received indices. Also disclosed is a related processing system (100) comprising a memory (110) and hardware for indexing data elements in a source array (112) in the memory.