发明授权
US07356320B2 Apparatus and method for removing DC offset in a frequency direct-conversion device
失效
用于去除频率直接转换装置中的直流偏移的装置和方法
- 专利标题： Apparatus and method for removing DC offset in a frequency direct-conversion device
- 专利标题（中）： 用于去除频率直接转换装置中的直流偏移的装置和方法
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申请号： US11015471申请日： 2004-12-20
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公开(公告)号： US07356320B2公开(公告)日： 2008-04-08
- 发明人: Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
- 申请人： Soo-Bok Yeo , Sang-Min Bae , Jong-Han Lim , Ji-Won Ha , Yong-Won Shin
- 申请人地址： KR Suwon-si
- 专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人： Samsung Electronics Co., Ltd.
- 当前专利权人地址： KR Suwon-si
- 代理机构： Roylance, Abrams, Berdo & Goodman L.L.P.
- 优先权： KR10-2003-0093458 20031218
- 主分类号： H04B1/30
- IPC分类号： H04B1/30
摘要：
An apparatus for removing a DC offset during frequency direct conversion in a reception device of a wireless communication system. In the apparatus, an adder receives a digital baseband signal comprising a DC component, receives an estimated DC offset value, and calculates a difference between the digital baseband signal with the DC component and the estimated DC offset value. A DC offset calculator receives gain mode information of an analog element of the reception device, and calculates the estimated DC offset value according to the gain mode.