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    • 1. 发明授权
    • Apparatus and method for generating partial product for polynomial operation
    • 用于生成用于多项式运算的部分乘积的装置和方法
    • US09354843B2
    • 2016-05-31
    • US13588250
    • 2012-08-17
    • Hyeong-Seok Yu
    • Hyeong-Seok Yu
    • G06F7/533
    • G06F7/5338
    • An apparatus and a method for generating a partial product for a polynomial operation are provided. The apparatus includes first encoders, each of the first encoders configured to selectively generate and output one of mutually exclusive values based on two inputs. The apparatus further includes a second encoder configured to generate and output two candidate partial products based on an output from a first one of the first encoders that is provided at a reference bit position of the inputs, an output from a second one of the first encoders that is provided at an upper bit position of the inputs, and a multiplicand. The apparatus further includes a multiplexer configured to select one of the candidate partial products output from the second encoder.
    • 提供了一种用于产生用于多项式操作的部分乘积的装置和方法。 该设备包括第一编码器,每个第一编码器被配置为基于两个输入选择性地生成和输出互斥值中的一个。 该装置还包括第二编码器,其被配置为基于来自提供在输入的参考位位置处的第一编码器中的第一编码器的输出来产生和输出两个候选部分乘积,来自第一编码器中的第二编码器的输出 被提供在输入的高位位置,被乘数。 该装置还包括多路复用器,其被配置为选择从第二编码器输出的候选部分乘积之一。
    • 3. 发明申请
    • FUSED MULTIPLY-ADD APPARATUS AND METHOD
    • 熔融多媒体设备和方法
    • US20120124117A1
    • 2012-05-17
    • US13153885
    • 2011-06-06
    • Hyeong-Seok YuDong-Kwan SuhSuk-Jin KimSan KimYong-Surk Lee
    • Hyeong-Seok YuDong-Kwan SuhSuk-Jin KimSan KimYong-Surk Lee
    • G06F7/487G06F7/485G06F5/01
    • G06F7/483G06F7/5443
    • A fixed multiply-add (FMA) apparatus and method are provided. The FMA apparatus includes a partial product generator configured to generate a partial sum and a partial carry, a carry save adder configured to generate a partial sum having a first bit size and a partial carry having the first bit size by adding the partial sum and the partial carry to least significant bits (LSBs) of the mantissa of a third floating-point number, a carry select adder configured to generate a mantissa having a second bit size by adding the first bit-size partial sum and the first bit-size partial carry to most significant bits (MSBs) of the third floating-point number, and a selector configured to transmit the first bit-size partial sum and the first bit-size partial carry to the carry save adder or the carry select adder according to whether the mantissa of the third floating-point number is zero.
    • 提供固定的乘法(FMA)装置和方法。 该FMA装置包括:部分乘积发生器,被配置为产生部分和和部分进位;进位保存加法器,被配置为通过将部分和和相加来产生具有第一位大小的部分和和具有第一位大小的部分进位 部分进位到第三浮点数的尾数的最低有效位(LSB),进位选择加法器,被配置为通过将第一位大小部分和和第一位大小部分相加来生成具有第二位大小的尾数 携带到第三浮点数的最高有效位(MSB),以及选择器,被配置为根据是否将第一位大小部分和和第一位大小部分进位发送到进位存储加法器或进位选择加法器 第三个浮点数的尾数为零。
    • 6. 发明授权
    • Method and apparatus for calculating the number of leading zero bits of a binary operation
    • 用于计算二进制运算的前零位数的方法和装置
    • US08805904B2
    • 2014-08-12
    • US13171536
    • 2011-06-29
    • Hyeong-Seok Yu
    • Hyeong-Seok Yu
    • G06F7/00
    • G06F7/74G06F7/485G06F7/50
    • Provided are an apparatus and method for calculating the number of leading zero bits of a binary operation. The apparatus and method may accurately predict the number of leading zero bits using a binary tree structure of an input operand for a binary operation and reduce operation delay time due to the increase in number of bits of the operand. The method may include generating 2n first functions by performing a logical operation on two input binary numbers on a bit-by-bit basis, calculating a second function by combining the first functions and a leading zero bit candidate value of the second function, and determining a final number of leading zero bits by recursively performing the calculating.
    • 提供了一种用于计算二进制操作的前导零比特数的装置和方法。 该装置和方法可以使用用于二进制操作的输入操作数的二叉树结构来精确地预测前导零比特的数量,并且由于操作数的比特数的增加而减少操作延迟时间。 该方法可以包括通过在逐位的基础上对两个输入二进制数执行逻辑运算来产生2n个第一函数,通过组合第一函数和第二函数的前导零比特候选值来计算第二函数,以及确定 通过递归执行计算的最终数量的前导零比特。
    • 9. 发明申请
    • METHOD AND APPARATUS FOR CALCULATING THE NUMBER OF LEADING ZERO BITS OF A BINARY OPERATION
    • 用于计算二进制操作的领先零位数的方法和装置
    • US20120203811A1
    • 2012-08-09
    • US13171536
    • 2011-06-29
    • Hyeong-Seok Yu
    • Hyeong-Seok Yu
    • G06F7/02
    • G06F7/74G06F7/485G06F7/50
    • Provided are an apparatus and method for calculating the number of leading zero bits of a binary operation. The apparatus and method may accurately predict the number of leading zero bits using a binary tree structure of an input operand for a binary operation and reduce operation delay time due to the increase in number of bits of the operand. The method may include generating 2n first functions by performing a logical operation on two input binary numbers on a bit-by-bit basis, calculating a second function by combining the first functions and a leading zero bit candidate value of the second function, and determining a final number of leading zero bits by recursively performing the calculating
    • 提供了一种用于计算二进制操作的前导零比特数的装置和方法。 该装置和方法可以使用用于二进制操作的输入操作数的二叉树结构来精确地预测前导零比特的数量,并且由于操作数的比特数的增加而减少操作延迟时间。 该方法可以包括通过在逐位的基础上对两个输入二进制数执行逻辑运算来产生2n个第一函数,通过组合第一函数和第二函数的前导零比特候选值来计算第二函数,以及确定 通过递归执行计算的最终数量的前导零比特
    • 10. 发明授权
    • Fused multiply-add apparatus and method
    • 熔融多重加法装置及方法
    • US08805915B2
    • 2014-08-12
    • US13153885
    • 2011-06-06
    • Hyeong-Seok YuDong-Kwan SuhSuk-Jin KimSan KimYong-Surk Lee
    • Hyeong-Seok YuDong-Kwan SuhSuk-Jin KimSan KimYong-Surk Lee
    • G06F7/38
    • G06F7/483G06F7/5443
    • A fixed multiply-add (FMA) apparatus and method are provided. The FMA apparatus includes a partial product generator configured to generate a partial sum and a partial carry, a carry save adder configured to generate a partial sum having a first bit size and a partial carry having the first bit size by adding the partial sum and the partial carry to least significant bits (LSBs) of the mantissa of a third floating-point number, a carry select adder configured to generate a mantissa having a second bit size by adding the first bit-size partial sum and the first bit-size partial carry to most significant bits (MSBs) of the third floating-point number, and a selector configured to transmit the first bit-size partial sum and the first bit-size partial carry to the carry save adder or the carry select adder according to whether the mantissa of the third floating-point number is zero.
    • 提供固定的乘法(FMA)装置和方法。 该FMA装置包括:部分乘积发生器,被配置为产生部分和和部分进位;进位保存加法器,被配置为通过将部分和和相加来产生具有第一位大小的部分和和具有第一位大小的部分进位 部分进位到第三浮点数的尾数的最低有效位(LSB),进位选择加法器,被配置为通过将第一位大小部分和和第一位大小部分相加来生成具有第二位大小的尾数 携带到第三浮点数的最高有效位(MSB),以及选择器,被配置为根据是否将第一位大小部分和和第一位大小部分进位发送到进位存储加法器或进位选择加法器 第三个浮点数的尾数为零。