公开(公告)号：US20120099686A1

公开(公告)日：2012-04-26

申请号：US13339560

申请日：2011-12-29

申请人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

发明人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

IPC分类号： H04B1/10

CPC分类号： H03D7/161 ,  H04B1/0035 ,  H04B1/28

摘要： An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonics and intermodulations typically associated with the frequency conversion process.

公开(公告)号：US07242918B2

公开(公告)日：2007-07-10

申请号：US11343504

申请日：2006-01-30

申请人： Timothy M. Magnusen ,  Kim E. Beumer

发明人： Timothy M. Magnusen ,  Kim E. Beumer

IPC分类号： H04B1/10

CPC分类号： H03D7/165 ,  H03H7/21 ,  H03H11/22 ,  H03H2007/0192 ,  H03H2011/0494

摘要： A filter circuit includes a polyphase filter coupled to a first circuit component and a second circuit component. The first circuit component propagates four input current signals to the polyphase filter. The third and fourth input current signals are substantially one-hundred-eighty degrees out of phase with the first and second input current signals. The polyphase filter receives the input current signals and generates four output current signals that are out of phase with each other. The second circuit component generates first and second output signals using the four output current signals. The first and second output signals are ninety degrees out of phase with each other.

摘要翻译： 滤波器电路包括耦合到第一电路部件和第二电路部件的多相滤波器。 第一电路组件将四个输入电流信号传播到多相滤波器。 第三和第四输入电流信号与第一和第二输入电流信号基本上相差一百八十度。 多相滤波器接收输入电流信号并产生彼此不同相的四个输出电流信号。 第二电路部件使用四个输出电流信号产生第一和第二输出信号。 第一和第二输出信号彼此相差九十度。

公开(公告)号：US06922556B2

公开(公告)日：2005-07-26

申请号：US10232352

申请日：2002-08-30

申请人： Kim E. Beumer

发明人： Kim E. Beumer

IPC分类号： H03D7/14 ,  H03F3/45 ,  H04B1/28

CPC分类号： H03F3/45089 ,  H03D7/1408 ,  H03D7/1433 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1491 ,  H03D7/165 ,  H03D2200/0043 ,  H03F2200/294 ,  H03F2200/372 ,  H03F2203/45318

摘要： A circuit for establishing a bias current includes a mixer, an amplifier, a bias resistor, a comparator, and a drive circuit. The mixer receives a drive voltage and at least a portion of a bias current. The amplifier is coupled to the mixer and receives at least a portion of the bias current. A bias resistor is coupled to the amplifier at a node and a bias voltage exists at the node. The comparator is coupled to the node and compares the bias voltage with a reference voltage. The comparator further generates an output signal based at least in part upon the comparison. The drive circuit generates the drive voltage in response to the output signal such that the bias voltage substantially equals the reference voltage thereby establishing the bias current.

摘要翻译： 用于建立偏置电流的电路包括混频器，放大器，偏置电阻器，比较器和驱动电路。 混合器接收驱动电压和偏置电流的至少一部分。 放大器耦合到混频器并且接收偏置电流的至少一部分。 偏置电阻在节点处耦合到放大器，并且在节点处存在偏置电压。 比较器耦合到节点，并将偏置电压与参考电压进行比较。 比较器至少部分地基于比较来生成输出信号。 驱动电路响应于输出信号产生驱动电压，使得偏置电压基本上等于参考电压，由此建立偏置电流。

公开(公告)号：US08107918B2

公开(公告)日：2012-01-31

申请号：US12101649

申请日：2008-04-11

申请人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

发明人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

IPC分类号： H04B1/10

CPC分类号： H03D7/161 ,  H04B1/0035 ,  H04B1/28

摘要： An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonies and intermodulations typically associated with the frequency conversion process.

摘要翻译： 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号，然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

公开(公告)号：US07640001B2

公开(公告)日：2009-12-29

申请号：US11316301

申请日：2005-12-20

申请人： Michael D. Womac ,  Armin G. Deiss ,  Thomas Leigh Davis ,  Kim E. Beumer

发明人： Michael D. Womac ,  Armin G. Deiss ,  Thomas Leigh Davis ,  Kim E. Beumer

IPC分类号： H04B1/10 ,  H04B1/06

CPC分类号： H03G1/0088 ,  H03G5/16 ,  H03H7/24

摘要： A system for filtering a signal includes a plurality of filter modules coupled in series. Each filter module includes a filter and a variable gain element. Each filter is capable of. receiving an input signal, attenuating a portion of the input signal that is outside a passband associated with the filter, and outputting at least a portion of the input signal that is within the passband associated with the filter. Each variable gain element is capable of receiving a control signal and inducing a gain in an output of the filter based on the control signal.

摘要翻译： 用于滤波信号的系统包括串联耦合的多个滤波器模块。 每个滤波器模块包括滤波器和可变增益元件。 每个过滤器都有。 接收输入信号，衰减与滤波器相关联的通带外部的输入信号的一部分，以及输出与滤波器相关联的通带内的输入信号的至少一部分。 每个可变增益元件能够基于控制信号接收控制信号并且在滤波器的输出中引起增益。

公开(公告)号：US20090258629A1

公开(公告)日：2009-10-15

申请号：US12101649

申请日：2008-04-11

申请人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

发明人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

IPC分类号： H04B1/26

CPC分类号： H03D7/161 ,  H04B1/0035 ,  H04B1/28

摘要： An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonies and intermodulations typically associated with the frequency conversion process.

摘要翻译： 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号，然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

公开(公告)号：US06744308B1

公开(公告)日：2004-06-01

申请号：US10232348

申请日：2002-08-30

申请人： Kim E. Beumer

发明人： Kim E. Beumer

IPC分类号： G06G726

CPC分类号： H03F3/45085 ,  H03F2200/294 ,  H03F2200/372

摘要： A circuit for establishing the input impedance of an amplifier includes an amplifier, a circuit component, a first feedback resistor, and a second feedback resistor. The amplifier has an input impedance and is coupled to a load having a load impedance. The circuit component is coupled to the load and shares at least a portion of a bias current with the amplifier. The first feedback resistor is coupled the amplifier and the load, and has a first impedance. The second feedback resistor is coupled to the amplifier and has a second impedance. The input impedance of the amplifier is established based at least in part upon the first impedance and the second impedance.

摘要翻译： 用于建立放大器的输入阻抗的电路包括放大器，电路部件，第一反馈电阻器和第二反馈电阻器。 放大器具有输入阻抗并且耦合到具有负载阻抗的负载。 电路部件耦合到负载并且与放大器共享至少一部分偏置电流。 第一个反馈电阻耦合放大器和负载，并具有第一个阻抗。 第二反馈电阻器耦合到放大器并且具有第二阻抗。 至少部分地基于第一阻抗和第二阻抗建立放大器的输入阻抗。

公开(公告)号：US08422978B2

公开(公告)日：2013-04-16

申请号：US13339560

申请日：2011-12-29

申请人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

发明人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

IPC分类号： H04B1/26

CPC分类号： H03D7/161 ,  H04B1/0035 ,  H04B1/28

摘要： An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonics and intermodulations typically associated with the frequency conversion process.

摘要翻译： 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号，然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

公开(公告)号：US20120099685A1

公开(公告)日：2012-04-26

申请号：US13339549

申请日：2011-12-29

申请人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

发明人： Carey Ritchey ,  Kim E. Beumer ,  Marius Pop

IPC分类号： H04B1/10

CPC分类号： H03D7/161 ,  H04B1/0035 ,  H04B1/28

摘要： An agile RF tuner circuit capable of converting a wide portion of RF signal into an IF signal suitable for analog-to-digital conversion. The circuit up converts a received RF signal to a high IF signal and then down converts the high IF signal to a low IF signal. Embodiments of the RF circuit incorporate harmonic reject mixers to suppress harmonics and intermodulations typically associated with the frequency conversion process.

摘要翻译： 能够将大部分RF信号转换成适合于模数转换的IF信号的敏捷RF调谐器电路。 电路将接收的RF信号转换为高IF信号，然后将高IF信号下变频为低IF信号。 RF电路的实施例包括谐波抑制混频器以抑制通常与频率转换过程相关联的谐波和互调。

公开(公告)号：US07751857B2

公开(公告)日：2010-07-06

申请号：US12103296

申请日：2008-04-15

申请人： Kim E. Beumer ,  Peter Kipfelsberger ,  Philip T. Hisayasu

发明人： Kim E. Beumer ,  Peter Kipfelsberger ,  Philip T. Hisayasu

IPC分类号： H04B1/38 ,  H04B1/16

CPC分类号： H04B1/0053 ,  H03F1/0205 ,  H03F3/191 ,  H03F2200/468 ,  H03G3/30 ,  H04B1/005

摘要： A device for measuring voltage levels includes a root mean square (RMS) detector. The RMS detector includes a linear multiplier, a log converter, a low-pass filter and a temperature compensator. The linear multiplier multiplies a voltage of an input signal by the voltage of the input signal. The low-pass filter couples to an output of the linear multiplier. The log converter generates a logarithmic signal having a voltage that is logarithmically related to a voltage of an output of the low-pass filter. The temperature compensator adjusts the logarithmic signal based on a temperature of the RMS detector. The RMS detector is capable of determine an RMS voltage level of the input signal.

摘要翻译： 用于测量电压电平的装置包括均方根（RMS）检测器。 RMS检测器包括线性乘法器，对数转换器，低通滤波器和温度补偿器。 线性乘法器将输入信号的电压乘以输入信号的电压。 低通滤波器耦合到线性乘法器的输出。 对数转换器产生具有与低通滤波器的输出的电压对数相关的电压的对数信号。 温度补偿器根据RMS检测器的温度调节对数信号。 RMS检测器能够确定输入信号的RMS电压电平。