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专利名称：Method and device for generating a filter
coefficient in real time
发明人：Xingjun Pi,Xiaogang Kang,Yong Jiang申请号：US135982申请日：20120802公开号：US09124244B2公开日：20150901
专利附图：
摘要：The present invention provides a method and device for generating a filtercoefficient in real time. The method includes: looking up a converted window functionvalue in a converted window function table based on a current coefficient index;
generating a current cut-off angular frequency; generating a look-up table addressbased on the current coefficient index, the filter order and the current cut-off angularfrequency and looking up a sine value in a sine table based on the look-up table address;and multiplying the converted window function value by the sine value to obtain the filtercoefficient. The device includes a first memory, a second memory, a look-up tableaddress generation module and a first multiplier. The present invention is easilyimplemented with low hardware resource consumption and high flexibility, and isparticularly applicable for the hardware implementation of high-order finite impulseresponse filters.
申请人：Xingjun Pi,Xiaogang Kang,Yong Jiang
地址：Shenzhen CN,Shenzhen CN,Shenzhen CN
国籍：CN,CN,CN
代理机构：Stoel Rives LLP
代理人：Kory D. Christensen
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