发明名称 |
Limit-cycle free FIR/IIR halfband digital filter |
摘要 |
A multiplexed FIR/IIR digital filter structure (300) which offers linear phase response and low group delay by switching on a FIR filter portion (31) or a IIR filter portion (32). To reduce the silicon area, the FIR/IIR filter (300) shares registers which is enabled because the FIR and IIR processing do not use the registers at the same time but rather consecutively. Further, the multiplexed FIR/IIR digital filter structure (300) can offer limit-cycle-free IIR operation using two's-complement truncation in combination with positive valued allpass coefficients.
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申请公布号 |
EP1469601(A2) |
申请公布日期 |
2004.10.20 |
申请号 |
EP20040101590 |
申请日期 |
2004.04.16 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
ZHONGNONG, JIANG |
分类号 |
H03H17/02;H03H17/04;(IPC1-7):H03H17/04 |
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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