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    HOMOMORPHIC ACCELERATOR GENERATING ENABLE SIGNAL
    1.
    发明公开
    HOMOMORPHIC ACCELERATOR GENERATING ENABLE SIGNAL 审中-实审

    公开(公告)号：EP4339923A1

    公开(公告)日：2024-03-20

    申请号：EP23197074.0

    申请日：2023-09-13

    申请人： Electronics and Telecommunications Research Institute

    发明人： PARK, Seong-Cheon ,  NA, Jung-Chan ,  KIM, Hyunwoo ,  JANG, Suyeon

    IPC分类号： G09C1/00 ,  H04L9/00 ,  G06F7/50 ,  G06F7/523 ,  G06F7/72

    摘要： Disclosed is an accelerator which includes a first to a K-th stage performing an NTT (Number Theoretic Transform) operation of first input data including a polynomial of a homomorphic ciphertext, the first to K-th stages being connected in series, and a first assist circuit generating a first to a K-th enable signal based on a degree of the polynomial of the first input data. Each of the first to K-th stages performs a butterfly operation of the first input data or corresponding output data of a previous stage in response to that the corresponding enable signal among the first to K-th enable signals indicates a first logical value, and bypasses the first input data or the corresponding output data of the previous stage in response to that the corresponding enable signal among the first to K-th enable signals indicates a second logical value.

    APPARATUS AND METHOD FOR PROCESSING FLOATING-POINT NUMBERS
    3.
    发明公开
    APPARATUS AND METHOD FOR PROCESSING FLOATING-POINT NUMBERS 审中-公开

    公开(公告)号：EP3767455A1

    公开(公告)日：2021-01-20

    申请号：EP20186224.0

    申请日：2020-07-16

    申请人： Imagination Technologies Limited

    发明人： ELLIOTT, Sam

    IPC分类号： G06F7/485 ,  G06F7/50 ,  G06F7/74

    摘要： Circuits and associated methods are disclosed, for processing two floating-point numbers (A, B) to generate a sum (A+B) of the two numbers and a difference (A-B) of the two numbers. The method comprises calculating (806) a sum (|A|+|B|) of the absolute values of the two floating-point numbers, using a same-sign floating-point adder (1020), to produce a first result. The method further comprises calculating (808) a difference (|A|-|B|) of the absolute values to produce a second result. The sum (A+B) and the difference (A-B) are generated (810, 812) based on the first result (|A|+|B|), the second result (|A|-|B|), and the sign of each floating-point number.

    LOOK UP TABLE STRUCTURE SUPPORTING QUATERNARY ADDERS
    6.
    发明公开
    LOOK UP TABLE STRUCTURE SUPPORTING QUATERNARY ADDERS 有权
    图表结构，以支持季法器

    公开(公告)号：EP2550593A2

    公开(公告)日：2013-01-30

    申请号：EP11760069.2

    申请日：2011-03-22

    申请人： Altera Corporation

    发明人： LANGHAMMER, Martin

    IPC分类号： G06F7/50 ,  H03K19/173 ,  H03K19/21

    CPC分类号： G06F17/10 ,  G06F7/5057 ,  G06F7/506 ,  G06F7/509

    摘要： A lookup table structure having multiple lookup tables is configured to include a quaternary adder. In particular examples, an adaptive logic module (ALM) including a fracturable lookup table (LUT) is configured to include a quaternary (4-1) adder. In some examples, only an XOR gate, an AND gate, two single bit 2-1 multiplexers, and minor connectivity changes to a LUT structure supporting a ternary (3-1) adder are needed to support 4-1 adders. Binary (2-1) and ternary adders are still supported using the original signal flows, as the ternary adder feature can be easily multiplexed out.

    Digital signal pattern detection and classification using kernel fusion
    8.
    发明公开
    Digital signal pattern detection and classification using kernel fusion 审中-公开
    Digitale Signalmustererkennung und Klassifizierung durch Kernel-Fusion

    公开(公告)号：EP2085910A1

    公开(公告)日：2009-08-05

    申请号：EP08006449.6

    申请日：2008-03-31

    申请人： Qualcomm Incorporated

    发明人： Forutanpour, Babak

    IPC分类号： G06K9/46 ,  G06T7/00 ,  G06F7/50

    CPC分类号： G06K9/4609 ,  G06T7/13 ,  H04N5/23229

    摘要： This disclosure describes techniques for determining a shape of a signal. In particular, a kernel is applied to a portion of a signal to compute at least a first, first order derivative of the portion of the signal and a second, first order derivative of the portion of the signal in a single pass of the kernel. The shape of the portion of the signal is determined based on the first and second first order derivatives. In one example, the shape of the portion of the signal is determined based on the ratio of the first, first order derivative and the second, first order derivative. These techniques may be particularly effective for detecting edges within image signals. However, the techniques may be used to detect the shape of significant changes within any signal that represents a variable that is changing over time, space or other dimension.

    摘要翻译： 本公开描述了用于确定信号形状的技术。 特别地，将内核应用于信号的一部分以计算信号部分的至少第一，第一阶导数以及在单次内核中信号部分的第二，一阶导数。 基于第一和第二一阶导数确定信号部分的形状。 在一个示例中，信号部分的形状基于第一，一阶导数和第二一阶导数的比率来确定。 这些技术对于检测图像信号中的边缘可能特别有效。 然而，这些技术可以用于检测任何信号中的显着变化的形状，这些变化表示随着时间，空间或其他维度而变化的变量。