发明授权
- 专利标题: Systems and methods for controlling local oscillator feed-through
- 专利标题(中): 用于控制本地振荡器馈通的系统和方法
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申请号: US13104378申请日: 2011-05-10
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公开(公告)号: US09450629B2公开(公告)日: 2016-09-20
- 发明人: Mark M. Cloutier , Tudor Lipan , Christian Cojocaru
- 申请人: Mark M. Cloutier
- 申请人地址: US MA Woburn
- 专利权人: Skyworks Solutions, Inc.
- 当前专利权人: Skyworks Solutions, Inc.
- 当前专利权人地址: US MA Woburn
- 代理机构: Knobbe, Martens, Olson & Bear, LLP
- 主分类号: H04B17/00
- IPC分类号: H04B17/00 ; H04B1/30 ; H04L27/00 ; H04L27/36
摘要:
A method for controlling local oscillator (LO) feed-through in a direct transmitter includes detecting a signal level corresponding to LO feed-through in a radio frequency (RF) signal that is output by a direct transmitter. Responsive to detecting the signal level corresponding to LO feed-through, DC offset levels are modified for an in-phase (I) signal and/or a quadrature-phase (Q) signal in the direct transmitter.
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