发明授权
- 专利标题： DC offset correction for a wireless communication system
- 专利标题（中）： 无线通信系统的直流偏移校正
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申请号： US10987883申请日： 2004-11-12
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公开(公告)号： US07313376B1公开(公告)日： 2007-12-25
- 发明人: Alexander Wayne Hietala
- 申请人： Alexander Wayne Hietala
- 申请人地址： US NC Greensboro
- 专利权人： RF Micro Devices, Inc.
- 当前专利权人： RF Micro Devices, Inc.
- 当前专利权人地址： US NC Greensboro
- 代理机构： Withrow & Terranova, PLLC
- 主分类号： H04B1/06
- IPC分类号： H04B1/06
摘要：
A system and method for performing DC offset correction in a wireless communication receiver during “dead time” are provided. The receiver includes amplifier circuitry that amplifies a received radio frequency (RF) signal, downconversion circuitry that downconverts the received RF signal to provide a downconverted signal, digitization circuitry that digitizes the downconverted signal to provide a digital signal, and digital DC offset correction circuitry enabled during the dead time when there should be no DC content in the downconverted signal. In operation, the digital DC offset correction circuitry detects a DC offset of the digital signal and subtracts the DC offset from the digital signal.
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