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    • 28. 发明授权
    • Montgomery multiplier having efficient hardware structure
    • 蒙哥马利倍增器具有高效的硬件结构
    • US08756268B2
    • 2014-06-17
    • US13052524
    • 2011-03-21
    • Kyoung-moon AhnYoung-sik KimJong-hoon ShinSun-soo ShinJi-su Kang
    • Kyoung-moon AhnYoung-sik KimJong-hoon ShinSun-soo ShinJi-su Kang
    • G06F7/72
    • G06F7/728
    • A radix-2k Montgomery multiplier including an input coefficient generation unit to receive a multiplier, a multiplicand, a modulus, a sum and a previous sum, to generate and to output a partial product and a multiple modulus by using at least one of the multiplier, the multiplicand, the modulus and the sum, and to divide and to output the received previous sum into units of k bits, an accumulator circuit to receive the partial product, the multiple modulus and k bits of the previous sum from the input coefficient generation unit, and to generate and to output a carry and a sum by summing the partial product, the multiple modulus and the previous sum, and a carry propagation adder (CPA) circuit to generate and to output an ultimate sum by using the carry and the sum.
    • 一个radix-2k蒙哥马利乘数器,其包括用于接收乘法器的输入系数产生单元,乘法器,模数,和和先前和,以通过使用乘法器中的至少一个来产生和输出部分乘积和多重模数 ,被乘数,模数和和,并且将接收的先前和除以并输出到k位的单位,用于接收部分乘积的累加器电路,来自输入系数生成的先前和的多个模数和k个比特 并且通过将部分乘积,多重模量和前一个和相加来产生和输出一个进位和一个和以及一个进位传播加法器(CPA)电路,以通过使用进位和运算来产生和输出最终和 和。
    • 29. 发明授权
    • Method and apparatus for detecting voice activity by using signal and noise power prediction values
    • 通过使用信号和噪声功率预测值来检测语音活动的方法和装置
    • US08744842B2
    • 2014-06-03
    • US12127942
    • 2008-05-28
    • Jae-youn Cho
    • Jae-youn Cho
    • G10L25/93G10L21/00G10L25/90
    • G10L25/78
    • A robust method and apparatus to detect voice activity based on the power level of an audio frame. The method may include performing primary active/non-active voice period determination of an input audio frame according to a power level of the audio frame, extracting a noise power prediction value and a signal power prediction value by referring to power levels of current and previous audio frames according to a primary active/non-active voice period determination value, and performing secondary active/non-active voice period determination for the input audio frame by comparing the extracted signal power prediction value with the extracted noise power prediction value.
    • 一种基于音频帧的功率级别来检测语音活动的鲁棒方法和装置。 该方法可以包括根据音频帧的功率电平来执行输入音频帧的主要有效/非有效语音周期确定,通过参考当前和之前的功率电平来提取噪声功率预测值和信号功率预测值 音频帧,并且通过将所提取的信号功率预测值与所提取的噪声功率预测值进行比较来对输入音频帧执行辅助有效/非有效语音周期确定。