发明名称 |
Versatile system for multimode, wireless communication receiver with ZIF and Near-ZIF operations |
摘要 |
An architecture for a receiver component in a wireless communications system is disclosed-one that supports both zero intermediate frequency (ZIF) and near-zero intermediate frequency (NZIF) operation. The architecture provides a down-conversion segment, and a local oscillator segment operatively associated with the down-conversion segment. An analog-to-digital conversion (ADC) segment is adapted to receive signals from the down-conversion segment and introduce the signals into a digital intermediate frequency (DIF) construct. The DIF construct performs a DC offset compensation or DC residue filtering on NZIF-based signals, and droop or mismatch compensation. Image removal is performed on NZIF-based signals, and DC offset compensation is performed on ZIF-based signals. Compensated signals are amplified to some nominal or desired level, and interpolation filtering of the amplified signals is performed prior to transmission thereof.
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申请公布号 |
US7558550(B2) |
申请公布日期 |
2009.07.07 |
申请号 |
US20060326124 |
申请日期 |
2006.01.05 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
BROBSTON MICHAEL L.;LOH STEVEN;KIM SEONG EUN;YOON WEON KI |
分类号 |
H04B1/16 |
主分类号 |
H04B1/16 |
代理机构 |
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