公开(公告)号：US20080146184A1

公开(公告)日：2008-06-19

申请号：US11613079

申请日：2006-12-19

申请人： David Dessert

发明人： David Dessert

IPC分类号： H04B1/10

CPC分类号： H04B1/1036 ,  H03D7/163 ,  H04B1/28 ,  H04B15/06

摘要： A system for processing a signal comprises a tuner with a signal path that includes two or more mixers each of the mixers controlled by a respective local oscillator (LO); an analog-to-digital converter (ADC) in the signal path operable to produce a digital signal, wherein each of the local oscillators and the ADC are driven by clock signals; and a filter unit adapted to apply a notch filter to one or more spurious signals in the digital signal, wherein the notch filter is based at least in part on frequency multiplication factors in each of the clock signals.

摘要翻译： 一种用于处理信号的系统包括具有信号路径的调谐器，该信号路径包括由相应的本地振荡器（LO）控制的每个混频器的两个或更多个混频器; 所述信号路径中的模拟数字转换器（ADC）可操作以产生数字信号，其中所述本地振荡器和所述ADC中的每一个由时钟信号驱动; 以及适于将陷波滤波器应用于数字信号中的一个或多个寄生信号的滤波器单元，其中陷波滤波器至少部分地基于每个时钟信号中的倍频因子。

公开(公告)号：US07035614B2

公开(公告)日：2006-04-25

申请号：US10319118

申请日：2002-12-13

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B1/26

CPC分类号： H03J7/02 ,  H03D7/161 ,  H04B1/12 ,  H04B15/06

摘要： The present invention is directed to a system and method of reducing frequency interference in a circuit when the harmonics of at least two frequencies could cause interference when such harmonics interact with each other. In one embodiment, a determination is made as to which harmonic could possibly support such interference, and based upon the determined harmonic, determining which combination within said determined harmonic is likely to cause the interference.

公开(公告)号：US07764940B2

公开(公告)日：2010-07-27

申请号：US11325854

申请日：2006-01-05

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B1/26

CPC分类号： H03J7/02 ,  H03D7/161 ,  H04B1/12 ,  H04B15/06

摘要： The present invention is directed to a system and method of reducing frequency interference in a circuit when the harmonics of at least two frequencies could cause interference when such harmonics interact with each other. In one embodiment, a determination is made as to which harmonic could possibly support such interference, and based upon the determined harmonic, determining which combination within said determined harmonic is likely to cause the interference.

摘要翻译： 本发明涉及一种减小电路中的频率干扰的系统和方法，当这种谐波相互作用时，当至少两个频率的谐波可能引起干扰。 在一个实施例中，确定哪些谐波可能支持这种干扰，并且基于所确定的谐波，确定所述确定的谐波中的哪个组合可能导致干扰。

公开(公告)号：US07904024B2

公开(公告)日：2011-03-08

申请号：US11930703

申请日：2007-10-31

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B1/00 ,  H04B17/00

CPC分类号： H04B15/06 ,  H03D7/163 ,  H04B1/28

摘要： Systems and methods of eliminating or reducing interference resulting from harmonics of local oscillator frequencies of mixers are shown. In one embodiment, a determination is made as to a zone or zones within an intermediate frequency band associated with undesired spurs. Inter-tuner spurs and intra-tuner spurs may be identified such that frequency information of the identified spurs may be utilized to define a plurality of exclusion zones. Local oscillator frequencies may subsequently be efficiently selected in view of the exclusion zone information. Embodiments may also determine a score for identified spurs which may be used to optimally select from within a set of spur-generating local oscillator frequencies.

摘要翻译： 示出了消除或减少由混频器的本地振荡器频率的谐波引起的干扰的系统和方法。 在一个实施例中，确定与不期望的刺激相关联的中间频带内的区域或区域。 可以识别相互调谐器之间的杂散和调谐器内部的杂散，使得所识别的杂散的频率信息可以用于定义多个排除区。 考虑到排除区域信息，随后可以有效地选择本地振荡器频率。 实施例还可以确定用于所识别的杂散的分数，其可以用于在一组产生振荡的本地振荡器频率内进行最佳选择。

公开(公告)号：US07783259B2

公开(公告)日：2010-08-24

申请号：US10952185

申请日：2004-09-28

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B1/00 ,  H04B17/00

CPC分类号： H04B15/06 ,  H04B1/28

摘要： Disclosed are systems and methods of eliminating or reducing interference resulting from harmonics of local oscillator frequencies of mixers. In one embodiment, a determination is made as to a zone or zones in which harmonics result in undesired spur generation. Inter-tuner spurs and intra-tuner spurs may be identified such that frequency information of the identified spurs may be utilized to define a plurality of exclusion zones. LO frequencies may subsequently be efficiently selected in view of the exclusion zone information. Embodiments may also determine a score for identified spurs which may be used to optimally select from within a set of spur-generating local oscillator frequencies.

摘要翻译： 公开了消除或减少由混频器的本地振荡器频率的谐波引起的干扰的系统和方法。 在一个实施例中，确定谐波导致不想要的支线产生的区域或区域。 可以识别相互调谐器之间的杂散和调谐器内部的杂散，使得所识别的杂散的频率信息可以用于定义多个排除区。 考虑到排除区信息，随后可以有效地选择LO频率。 实施例还可以确定用于所识别的杂散的分数，其可以用于在一组产生振荡的本地振荡器频率内进行最佳选择。

公开(公告)号：US08346172B2

公开(公告)日：2013-01-01

申请号：US12473092

申请日：2009-05-27

申请人： Marius Pop ,  David Dessert

发明人： Marius Pop ,  David Dessert

IPC分类号： H04B1/00 ,  H04B17/00

CPC分类号： H04B1/1036 ,  H04B1/28

摘要： Systems and methods which place a spurious signal within a capture bandwidth of a tuner. Placement of the spur is preferably controlled to dispose the spur within a spur placement window, such as may be defined between traffic channels of an input signal. A tuner system operating in accordance with embodiments may be controlled to select a particular input frequency band comprising a plurality of traffic channels for frequency conversion and to determine local oscillator frequencies which result in most relevant spurs being placed outside of the tuner capture bandwidth. The local oscillator frequencies may be shifted to place a relevant spur remaining within the capture bandwidth of the tuner between traffic channels of the plurality of traffic channels. Embodiments operate to determine frequency offset between a transmitter and a tuner to determine the midpoint between channels.

摘要翻译： 在调谐器的捕获带宽内放置杂散信号的系统和方法。 优选地，控制支线的放置以将杂散处置在支线放置窗口内，诸如可以在输入信号的交通信道之间定义。 可以控制根据实施例操作的调谐器系统以选择包括用于频率转换的多个业务信道的特定输入频带，并且确定导致大部分相关杂散放置在调谐器捕获带宽之外的本地振荡器频率。 可以移动本地振荡器频率以将相关杂波置于保持在调谐器的捕获带宽内的多个业务信道的业务信道之间。 实施例用于确定发射器和调谐器之间的频率偏移，以确定通道之间的中点。

公开(公告)号：US20100304677A1

公开(公告)日：2010-12-02

申请号：US12473092

申请日：2009-05-27

申请人： Marius Pop ,  David Dessert

发明人： Marius Pop ,  David Dessert

IPC分类号： H04B7/12 ,  H04B17/00

CPC分类号： H04B1/1036 ,  H04B1/28

摘要： Systems and methods which place a spurious signal within a capture bandwidth of a tuner. Placement of the spur is preferably controlled to dispose the spur within a spur placement window, such as may be defined between traffic channels of an input signal. A tuner system operating in accordance with embodiments may be controlled to select a particular input frequency band comprising a plurality of traffic channels for frequency conversion and to determine local oscillator frequencies which result in most relevant spurs being placed outside of the tuner capture bandwidth. The local oscillator frequencies may be shifted to place a relevant spur remaining within the capture bandwidth of the tuner between traffic channels of the plurality of traffic channels. Embodiments operate to determine frequency offset between a transmitter and a tuner to determine the midpoint between channels.

摘要翻译： 在调谐器的捕获带宽内放置杂散信号的系统和方法。 优选地，控制支线的放置以将杂散处置在支线放置窗口内，诸如可以在输入信号的交通信道之间定义。 可以控制根据实施例操作的调谐器系统以选择包括用于频率转换的多个业务信道的特定输入频带，并且确定导致大部分相关杂散放置在调谐器捕获带宽之外的本地振荡器频率。 可以移动本地振荡器频率以将相关杂波置于保持在调谐器的捕获带宽内的多个业务信道的业务信道之间。 实施例用于确定发射器和调谐器之间的频率偏移，以确定通道之间的中点。

公开(公告)号：US20080222691A1

公开(公告)日：2008-09-11

申请号：US11930703

申请日：2007-10-31

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04N7/16

CPC分类号： H04B15/06 ,  H03D7/163 ,  H04B1/28

摘要： Systems and methods of eliminating or reducing interference resulting from harmonics of local oscillator frequencies of mixers are shown. In one embodiment, a determination is made as to a zone or zones within an intermediate frequency band associated with undesired spurs. Inter-tuner spurs and intra-tuner spurs may be identified such that frequency information of the identified spurs may be utilized to define a plurality of exclusion zones. Local oscillator frequencies may subsequently be efficiently selected in view of the exclusion zone information. Embodiments may also determine a score for identified spurs which may be used to optimally select from within a set of spur-generating local oscillator frequencies.

摘要翻译： 示出了消除或减少由混频器的本地振荡器频率的谐波引起的干扰的系统和方法。 在一个实施例中，确定与不期望的刺激相关联的中间频带内的区域或区域。 可以识别相互调谐器之间的杂散和调谐器内部的杂散，使得所识别的杂散的频率信息可以用于定义多个排除区。 考虑到排除区域信息，随后可以有效地选择本地振荡器频率。 实施例还可以确定用于所识别的杂散的分数，其可以用于在一组产生振荡的本地振荡器频率内进行最佳选择。

公开(公告)号：US20060116099A1

公开(公告)日：2006-06-01

申请号：US11325854

申请日：2006-01-05

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B15/06

CPC分类号： H03J7/02 ,  H03D7/161 ,  H04B1/12 ,  H04B15/06

摘要： The present invention is directed to a system and method of reducing frequency interference in a circuit when the harmonics of at least two frequencies could cause interference when such harmonics interact with each other. In one embodiment, a determination is made as to which harmonic could possibly support such interference, and based upon the determined harmonic, determining which combination within said determined harmonic is likely to cause the interference.

摘要翻译： 本发明涉及一种减小电路中的频率干扰的系统和方法，当这种谐波相互作用时，当至少两个频率的谐波可能引起干扰。 在一个实施例中，确定哪些谐波可能支持这种干扰，并且基于所确定的谐波，确定所述确定的谐波中的哪个组合可能导致干扰。

公开(公告)号：US20060068708A1

公开(公告)日：2006-03-30

申请号：US10952185

申请日：2004-09-28

申请人： David Dessert ,  John Schneider

发明人： David Dessert ,  John Schneider

IPC分类号： H04B1/00 ,  H04B1/10 ,  H04B15/00

CPC分类号： H04B15/06 ,  H04B1/28

摘要： Disclosed are systems and methods of eliminating or reducing interference resulting from harmonics of local oscillator frequencies of mixers. In one embodiment, a determination is made as to a zone or zones in which harmonics result in undesired spur generation. Inter-tuner spurs and intra-tuner spurs may be identified such that frequency information of the identified spurs may be utilized to define a plurality of exclusion zones. LO frequencies may subsequently be efficiently selected in view of the exclusion zone information. Embodiments may also determine a score for identified spurs which may be used to optimally select from within a set of spur-generating local oscillator frequencies.

摘要翻译： 公开了消除或减少由混频器的本地振荡器频率的谐波引起的干扰的系统和方法。 在一个实施例中，确定谐波导致不想要的支线产生的区域或区域。 可以识别相互调谐器之间的杂散和调谐器内部的杂散，使得所识别的杂散的频率信息可以用于定义多个排除区。 考虑到排除区信息，随后可以有效地选择LO频率。 实施例还可以确定用于所识别的杂散的分数，其可以用于在一组产生振荡的本地振荡器频率内进行最佳选择。