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公开(公告)号：US20120033758A1
公开(公告)日：2012-02-09
申请号：US13104378
申请日：2011-05-10
IPC分类号： H04L25/06
CPC分类号： H04B1/30 , H03C2200/0058 , H03C2200/0079 , H04L27/0014 , H04L27/364 , H04L2027/0018
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.
摘要翻译： 用于在直接发射机中控制本地振荡器（LO）馈通的方法包括检测由直接发射机输出的射频（RF）信号中与LO馈通相对应的信号电平。 响应于检测对应于LO馈通的信号电平，对于直接发射机中的同相（I）信号和/或正交相（Q）信号，DC偏移电平被修改。
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公开(公告)号：US07941106B2
公开(公告)日：2011-05-10
申请号：US11758730
申请日：2007-06-06
IPC分类号： H04B17/00
CPC分类号： H04B1/30 , H03C2200/0058 , H03C2200/0079 , H04L27/0014 , H04L27/364 , H04L2027/0018
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.
摘要翻译： 用于在直接发射机中控制本地振荡器（LO）馈通的方法包括检测由直接发射机输出的射频（RF）信号中与LO馈通相对应的信号电平。 响应于检测对应于LO馈通的信号电平，对于直接发射机中的同相（I）信号和/或正交相（Q）信号，DC偏移电平被修改。
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3.发明授权Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip 有权集成斜坡，扫描分数频率合成器在集成电路芯片上公开(公告)号：US08085097B2
公开(公告)日：2011-12-27
申请号：US12387529
申请日：2009-05-04
申请人： Mark M. Cloutier , Tudor Lipan
发明人： Mark M. Cloutier , Tudor Lipan
CPC分类号： H03L7/1976 , H03C3/0925 , H03C3/0933 , H03L7/0891 , H03L7/197
摘要： An integrated ramp, sweep fractional frequency synthesizer system on an integrated circuit chip includes an integrated circuit chip having a fractional frequency synthesizer with a fractional divider responsive to a VCO and a ΔΣ modulator for modifying the divisor of the fractional divider; and a ramp generator on the same integrated circuit chip; the ramp generator being responsive to a trigger signal to generate a ramp for sweeping the frequency of said fractional frequency synthesizer.
摘要翻译： 在集成电路芯片上集成的斜坡扫描分数频率合成器系统包括具有分数频率合成器的集成电路芯片，其具有响应于VCO的分数分频器和＆ 用于修改分数分频器的除数的调制器; 和同一集成电路芯片上的斜坡发生器; 斜坡发生器响应于触发信号以产生用于扫描所述分数频率合成器的频率的斜坡。
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4.发明申请Integrated ramp, sweep fractional frequency synthesizer on an integrated circuit chip 有权集成斜坡，扫描分数频率合成器在集成电路芯片上公开(公告)号：US20090278611A1
公开(公告)日：2009-11-12
申请号：US12387529
申请日：2009-05-04
申请人： Mark M. Cloutier , Tudor Lipan
发明人： Mark M. Cloutier , Tudor Lipan
IPC分类号： H03L7/00
CPC分类号： H03L7/1976 , H03C3/0925 , H03C3/0933 , H03L7/0891 , H03L7/197
摘要： An integrated ramp, sweep fractional frequency synthesizer system on an integrated circuit chip includes an integrated circuit chip having a fractional frequency synthesizer with a fractional divider responsive to a VCO and a ΔΣ modulator for modifying the divisor of the fractional divider; and a ramp generator on the same integrated circuit chip; the ramp generator being responsive to a trigger signal to generate a ramp for sweeping the frequency of said fractional frequency synthesizer.
摘要翻译： 集成电路芯片上集成的斜坡扫描分数频率合成器系统包括具有分数频率合成器的集成电路芯片，其具有响应VCO的分数分频器和用于修改分数分频器的除数的DeltaSigma调制器; 和同一集成电路芯片上的斜坡发生器; 斜坡发生器响应于触发信号以产生用于扫描所述分数频率合成器的频率的斜坡。
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公开(公告)号：US09450629B2
公开(公告)日：2016-09-20
申请号：US13104378
申请日：2011-05-10
申请人： Mark M. Cloutier
CPC分类号： H04B1/30 , H03C2200/0058 , H03C2200/0079 , H04L27/0014 , H04L27/364 , H04L2027/0018
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.
摘要翻译： 用于在直接发射机中控制本地振荡器（LO）馈通的方法包括检测由直接发射机输出的射频（RF）信号中与LO馈通相对应的信号电平。 响应于检测对应于LO馈通的信号电平，对于直接发射机中的同相（I）信号和/或正交相（Q）信号，DC偏移电平被修改。
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公开(公告)号：US20080280579A1
公开(公告)日：2008-11-13
申请号：US11758730
申请日：2007-06-06
IPC分类号： H04B1/06
CPC分类号： H04B1/30 , H03C2200/0058 , H03C2200/0079 , H04L27/0014 , H04L27/364 , H04L2027/0018
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.
摘要翻译： 用于在直接发射机中控制本地振荡器（LO）馈通的方法包括检测由直接发射机输出的射频（RF）信号中与LO馈通相对应的信号电平。 响应于检测对应于LO馈通的信号电平，对于直接发射机中的同相（I）信号和/或正交相（Q）信号，DC偏移电平被修改。
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