发明名称 |
Decision feedback equalizer and precoder ramping circuit |
摘要 |
A feedforward filter has a plurality of feedforward filter taps, including a feedforward filter reference tap. The reference tap of the feedforward filter is positioned proximate a center position of the feedforward filter. A ramping circuit assembly has an input port configured to receive at least one decision feedback filter tap coefficient from a decision feedback filter. A coefficient ramping circuit is configured to provide a ramped output for at least one of the decision feedback filter tap coefficients. The ramped output is varied over time from a first value to a second value. The second value is dependent upon the value of a decision feedback filter tap coefficient. An output port of the ramping circuit assembly is configured to communicate information representative of the ramped output(s) to a precoder.
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申请公布号 |
US7489725(B2) |
申请公布日期 |
2009.02.10 |
申请号 |
US20040848907 |
申请日期 |
2004.05.19 |
申请人 |
BROADCOM CORPORATION |
发明人 |
JAFFE STEVEN T.;JOSHI ROBINDRA;JONES DAVID;LIN THUJI SIMON |
分类号 |
H03K5/159;H03H21/00;H04L25/03 |
主分类号 |
H03K5/159 |
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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