专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09124247B2 Semiconductor device including a decimation filter that performs predetermined filtering 有权
标题翻译：包括执行预定滤波的抽取滤波器的半导体装置
公开(公告)号：US09124247B2
公开(公告)日：2015-09-01
申请号：US13551505
申请日：2012-07-17
申请人： Yusuke Edo , Seiji Kamada
发明人： Yusuke Edo , Seiji Kamada
IPC分类号： H03H17/06 , H03M3/00
CPC分类号： H03H17/0664 , H03M3/456
摘要： To variably change the filter characteristic of a decimation filter in accordance with a sampling rate. A decimation filter 13 in a semiconductor device 1 sequentially inputs a signal sampled at a predetermined sampling rate fos, and calculates, for each input signal that is input within a predetermined period (a period for M+2N), a filter coefficient Cj for performing predetermined filtering processing in response to a trigger signal TR continuously applied, and furthermore sequentially multiplies the input signal by the calculated filter coefficient, accumulates a multiplication value within the predetermined period, and sequentially outputs the result. The predetermined period is made variable in accordance with a time interval at which the trigger signal is applied.
摘要翻译：根据采样率可变地改变抽取滤波器的滤波器特性。半导体装置1中的抽取滤波器13顺序地输入以预定采样率fos采样的信号，并且对于在预定周期（M + 2N的周期）内输入的每个输入信号，计算用于执行的滤波器系数Cj 响应于连续施加的触发信号TR进行预定的滤波处理，并且还将输入信号乘以计算的滤波器系数，在预定周期内累积乘法值，并顺序地输出结果。根据施加触发信号的时间间隔使预定周期变化。

IPRDB

热门服务

关于我们

友情链接

联系方式