公开(公告)号：US20050008071A1

公开(公告)日：2005-01-13

申请号：US10615004

申请日：2003-07-08

申请人： Tamal Bose ,  Alan Shaw ,  Chirag Sharma ,  Ratchaneekorn Thamvichai

发明人： Tamal Bose ,  Alan Shaw ,  Chirag Sharma ,  Ratchaneekorn Thamvichai

IPC分类号： H03H17/02 ,  H03H17/04 ,  H03K5/159

CPC分类号： H03H17/0225 ,  H03H17/04

摘要： A multiplierless IIR filter incorporates power-of-two coefficients to perform shift operations to reduce space and increase speed. To optimize performance, a genetic algorithm generates the power-of-two coefficients. The filter architecture includes shift registers to receive input samples and previous outputs. A shifter stage is employed to perform shift operations for the input samples and previous outputs based on corresponding power-of-two coefficients. Products are added by parallelism and sequential pipelining to produce an output.

摘要翻译： 无乘法器IIR滤波器包含两个系数，用于执行移位操作以减少空间并提高速度。 为了优化性能，遗传算法生成二次幂系数。 滤波器架构包括移位寄存器以接收输入采样和以前的输出。 使用移位级基于相应的二次幂系数对输入样本和先前输出执行移位操作。 产品通过并行和顺序流水线添加以产生输出。

公开(公告)号：US07289558B2

公开(公告)日：2007-10-30

申请号：US10615004

申请日：2003-07-08

申请人： Tamal Bose ,  Alan W. Shaw ,  Chirag RamGopal Sharma ,  Ratchaneekorn Thamvichai

发明人： Tamal Bose ,  Alan W. Shaw ,  Chirag RamGopal Sharma ,  Ratchaneekorn Thamvichai

IPC分类号： H03H7/40

CPC分类号： H03H17/0225 ,  H03H17/04

摘要： A multiplierless IIR filter incorporates power-of-two coefficients to perform shift operations to reduce space and increase speed. To optimize performance, a genetic algorithm generates the power-of-two coefficients. The filter architecture includes shift registers to receive input samples and previous outputs. A shifter stage is employed to perform shift operations for the input samples and previous outputs based on corresponding power-of-two coefficients. Products are added by parallelism and sequential pipelining to produce an output.

摘要翻译： 无乘法器IIR滤波器包含两个系数，用于执行移位操作以减少空间并提高速度。 为了优化性能，遗传算法生成二次幂系数。 滤波器架构包括移位寄存器以接收输入采样和以前的输出。 使用移位级基于相应的二次幂系数对输入样本和先前输出执行移位操作。 产品通过并行和顺序流水线添加以产生输出。