发明名称 |
AREA EFFICIENT FIR FILTER WITH PROGRAMMABLE COEFFICIENTS |
摘要 |
The present invention is directed to an FIR filter for filtering sample values, which may include an adder circuit storing a plurality of coefficient values to be used in the FIR filter and for combining the samples values and the coefficient value to produce a combination value; and a memory circuit connected to the adder circuit for storing the combination value and for inputting at least a portion of the combination value back into the adder circuit to be combined with the sample values and the coefficient value. The present invention may also include a coefficient input circuit for inputting and storing a plurality of coefficient values to be used in the FIR filter; an ADC converter input circuit for inputting the sample values from the ADC converter; and an output circuit for outputting at least a portion of said combination value from the FIR filter. In the FIR filter of the present invention the coefficient values may be the same or different.
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申请公布号 |
US2002010727(A1) |
申请公布日期 |
2002.01.24 |
申请号 |
US19980160408 |
申请日期 |
1998.09.25 |
申请人 |
HUGHES GREGORY A.;MCDOWELL RICHARD LAWRENCE |
发明人 |
HUGHES GREGORY A.;MCDOWELL RICHARD LAWRENCE |
分类号 |
H03H17/02;H03H17/06;(IPC1-7):G06F17/00 |
主分类号 |
H03H17/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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