发明名称 |
VIRTUAL WEAVER ARCHITECTURE FILTER |
摘要 |
A virtual Weaver architecture filter is implemented using a sampling mixer that successively processes samples of the input signal in round-robin fashion and provides a sum of the samples as multiplied by coefficients emulating quadrature sinusoidal waveforms. A virtual rather than actual local oscillator is reliably implemented without mismatch. Filtering between the Weaver mixers is eliminated in favour of filtering at the sampling input and effective time division multiplexing is achieved by selecting between resistor combinations that implement different scaling coefficients, resulting in an efficient analog implementation of a virtual Weaver architecture. |
申请公布号 |
US2012300888(A1) |
申请公布日期 |
2012.11.29 |
申请号 |
US200913515259 |
申请日期 |
2009.12.11 |
申请人 |
MALLINSON MARTIN;FORMAN DUSTIN;ESS TECHNOLOGY, INC |
发明人 |
MALLINSON MARTIN;FORMAN DUSTIN |
分类号 |
H04B1/10 |
主分类号 |
H04B1/10 |
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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