发明名称 |
Data converter with minimum phase FIR filter and method for calculating filter coefficients |
摘要 |
In accordance with an embodiment of the invention, a data converter is disclosed employing at least one minimum phase FIR filter. The data converter includes an analog-to-digital converter for converting an incoming analog signal into a plurality of digital signal samples, followed by a minimum phase FIR filter to filter the digital signal samples. Alternatively, the data converter includes a digital-to-analog converter preceded by a minimum phase FIR filter to filter a plurality of digital signal samples that are converted into an analog signal by the digital-to-analog converter. The data converter may include both analog-to-digital and digital-to-analog conversion. In a preferred embodiment, the minimum phase FIR filter is an optimum minimum phase FIR filter. A method for precisely calculating the filter coefficients of an optimum minimum phase FIR filter is also disclosed.
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申请公布号 |
US5512898(A) |
申请公布日期 |
1996.04.30 |
申请号 |
US19950485303 |
申请日期 |
1995.06.07 |
申请人 |
AT&T CORP. |
发明人 |
NORSWORTHY, STEVEN R.;SHAW, DAVID G. |
分类号 |
H03H21/00;H03H17/00;H03H17/06;H04B3/23;(IPC1-7):H03M1/00 |
主分类号 |
H03H21/00 |
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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