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公开(公告)号：US11249721B2
公开(公告)日：2022-02-15
申请号：US16822720
申请日：2020-03-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Xu , Kaixing Wang , Qinglin Tian
Abstract: A multiplication circuit includes an addition subcircuit configured to obtain logarithmic field data a and b that correspond to A and B, and perform an addition operation on a and b to obtain c, where c includes an integral part and a fractional part, an exponentiation operation subcircuit configured to perform an exponentiation operation in which a base is 2 and an exponent is the fractional part of c, to obtain an exponentiation operation result, a shift subcircuit configured to shift the exponentiation operation result based on the integral part of c to obtain a shift result, and an output subcircuit configured to output a product of A and B based on signs of a and b and with reference to the shift result.
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公开(公告)号：US20200218509A1
公开(公告)日：2020-07-09
申请号：US16822720
申请日：2020-03-18
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Xu , Kaixing Wang , Qinglin Tian
Abstract: A multiplication circuit is provided, the circuit is configured to perform a multiplication operation on two pieces of data: A and B, and includes: an addition subcircuit configured to obtain logarithmic field data a and b that corresponding to A and B, and perform an addition operation on a and b to obtain c, where c includes an integral part and a fractional part; an exponentiation operation subcircuit configured to perform an exponentiation operation in which a base is 2 and an exponent is the fractional part of c, to obtain an exponentiation operation result; a shift subcircuit configured to shift the exponentiation operation result based on the integral part of c to obtain a shift result; and an output subcircuit, configured to output a product of A and B based on signs of a and b and with reference to the shift result.
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