公开(公告)号：US20100197233A1

公开(公告)日：2010-08-05

申请号：US12757362

申请日：2010-04-09

申请人： Andrew Joo Kim ,  Edward Gebara ,  Bruce C. Schmukler ,  Mark W. Dickmann ,  Michael F. Farrell ,  Michael G. Vrazel ,  David Anthony Stelliga ,  Joy Laskar ,  Charles E. Summers

发明人： Andrew Joo Kim ,  Edward Gebara ,  Bruce C. Schmukler ,  Mark W. Dickmann ,  Michael F. Farrell ,  Michael G. Vrazel ,  David Anthony Stelliga ,  Joy Laskar ,  Charles E. Summers

IPC分类号： H04B15/00

CPC分类号： H04B1/7103

摘要： Signals propagating on an aggressor communication channel can cause detrimental interference in a victim communication channel. A signal processing circuit can generate an interference cancellation signal that, when applied to the victim communication channel, cancels the detrimental interference. The signal processing circuit can dynamically adjust or update two or more aspects of the interference cancellation signal, such as an amplitude or gain parameter and a phase or delay parameter. Via the dynamic adjustments, the signal processing circuit can adapt to changing conditions, thereby maintaining an acceptable level of interference cancellation in a fluctuating operating environment. A control circuit that implements the parametric adjustments can have at least two modes of operation, one for adjusting the amplitude parameter and one for adjusting the phase parameter. The modes can be selectable or can be intermittently available, for example.

摘要翻译： 在侵略者通信信道上传播的信号可能对受害者通信信道造成有害的干扰。 信号处理电路可以产生干扰消除信号，当被施加到受害通信信道时，消除有害干扰。 信号处理电路可以动态地调整或更新干扰消除信号的两个或多个方面，例如振幅或增益参数以及相位或延迟参数。 通过动态调整，信号处理电路可以适应变化的条件，从而在波动的操作环境中保持可接受的干扰消除水平。 实现参数调整的控制电路可以具有至少两种操作模式，一种用于调整幅度参数，一种用于调整相位参数。 这些模式可以是可选择的，或者可以间歇地可用。

公开(公告)号：US07725079B2

公开(公告)日：2010-05-25

申请号：US11450543

申请日：2006-06-09

申请人： Andrew Joo Kim ,  Edward Gebara ,  Bruce C. Schmukler ,  Mark W. Dickmann ,  Michael F. Farrell ,  Michael G. Vrazel ,  David Anthony Stelliga ,  Joy Laskar ,  Charles E. Summers

发明人： Andrew Joo Kim ,  Edward Gebara ,  Bruce C. Schmukler ,  Mark W. Dickmann ,  Michael F. Farrell ,  Michael G. Vrazel ,  David Anthony Stelliga ,  Joy Laskar ,  Charles E. Summers

IPC分类号： H04B1/00 ,  H04B15/00

CPC分类号： H04B1/7103 ,  H04B1/123

摘要： Signals propagating on an aggressor communication channel can cause detrimental interference in a victim communication channel. A signal processing circuit can generate an interference cancellation signal that, when applied to the victim communication channel, cancels the detrimental interference. The signal processing circuit can dynamically adjust or update two or more aspects of the interference cancellation signal, such as an amplitude or gain parameter and a phase or delay parameter. Via the dynamic adjustments, the signal processing circuit can adapt to changing conditions, thereby maintaining an acceptable level of interference cancellation in a fluctuating operating environment. A control circuit that implements the parametric adjustments can have at least two modes of operation, one for adjusting the amplitude parameter and one for adjusting the phase parameter. The modes can be selectable or can be intermittently available, for example.

摘要翻译： 在侵略者通信信道上传播的信号可能对受害者通信信道造成有害的干扰。 信号处理电路可以产生干扰消除信号，当被施加到受害通信信道时，消除有害干扰。 信号处理电路可以动态地调整或更新干扰消除信号的两个或多个方面，例如振幅或增益参数以及相位或延迟参数。 通过动态调整，信号处理电路可以适应变化的条件，从而在波动的操作环境中保持可接受的干扰消除水平。 实现参数调整的控制电路可以具有至少两种操作模式，一种用于调整幅度参数，一种用于调整相位参数。 这些模式可以是可选择的，或者可以间歇地可用。

公开(公告)号：US20110069604A1

公开(公告)日：2011-03-24

申请号：US12868190

申请日：2010-08-25

申请人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

发明人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

IPC分类号： H04J3/10

CPC分类号： H03H11/265 ,  H03H15/00 ,  H03H2015/007 ,  H04B3/23 ,  H04B3/238 ,  H04B3/32 ,  H04J1/12

摘要： A circuit can process a sample of a signal to emulate, simulate, or model an effect on the signal. Thus, an emulation circuit can produce a representation of a real-world signal transformation by processing the signal according to one or more signal processing parameters that are characteristic of the real-world signal transformation. The emulation circuit can apply analog signal processing and/or mixed signal processing to the signal. The signal processing can comprise feeding the signal through two signal paths, each having a different delay, and creating a weighted sum of the outputs of the two signal paths. The signal processing can also (or alternatively) comprise routing the signal through a network of delay elements, wherein a bank of switching or routing elements determines the route and thus the resulting delay.

摘要翻译： 电路可以处理信号的样本以对信号进行模拟，模拟或建模。 因此，仿真电路可以通过根据作为真实世界信号变换的特征的一个或多个信号处理参数处理信号来产生现实世界信号变换的表示。 仿真电路可以对信号应用模拟信号处理和/或混合信号处理。 信号处理可以包括通过两个信号路径馈送信号，每个信号路径具有不同的延迟，并且产生两个信号路径的输出的加权和。 信号处理还可以（或者可选地）包括通过延迟元件的网络路由信号，其中一组交换或路由元件确定路由并且因此确定所得到的延迟。

公开(公告)号：US08605566B2

公开(公告)日：2013-12-10

申请号：US12868190

申请日：2010-08-25

申请人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

发明人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

IPC分类号： H04B3/20

CPC分类号： H03H11/265 ,  H03H15/00 ,  H03H2015/007 ,  H04B3/23 ,  H04B3/238 ,  H04B3/32 ,  H04J1/12

摘要： A circuit can process a sample of a signal to emulate, simulate, or model an effect on the signal. Thus, an emulation circuit can produce a representation of a real-world signal transformation by processing the signal according to one or more signal processing parameters that are characteristic of the real-world signal transformation. The emulation circuit can apply analog signal processing and/or mixed signal processing to the signal. The signal processing can comprise feeding the signal through two signal paths, each having a different delay, and creating a weighted sum of the outputs of the two signal paths. The signal processing can also (or alternatively) comprise routing the signal through a network of delay elements, wherein a bank of switching or routing elements determines the route and thus the resulting delay.

摘要翻译： 电路可以处理信号的样本以对信号进行模拟，模拟或建模。 因此，仿真电路可以通过根据作为真实世界信号变换的特征的一个或多个信号处理参数处理信号来产生现实世界信号变换的表示。 仿真电路可以对信号应用模拟信号处理和/或混合信号处理。 信号处理可以包括通过两个信号路径馈送信号，每个信号路径具有不同的延迟，并且产生两个信号路径的输出的加权和。 信号处理还可以（或者可选地）包括通过延迟元件的网络路由信号，其中一组交换或路由元件确定路由并且因此确定所得到的延迟。

公开(公告)号：US07804760B2

公开(公告)日：2010-09-28

申请号：US11509112

申请日：2006-08-23

申请人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

发明人： Bruce C. Schmukler ,  Arvind Raghavan ,  Ziba Nami ,  Jyothi Emmanuel Peddi ,  Andrew Joo Kim ,  Michael G. Vrazel ,  Charles E. Summers

IPC分类号： H04B3/20

CPC分类号： H03H11/265 ,  H03H15/00 ,  H03H2015/007 ,  H04B3/23 ,  H04B3/238 ,  H04B3/32 ,  H04J1/12

摘要： A circuit can process a sample of a signal to emulate, simulate, or model an effect on the signal. Thus, an emulation circuit can produce a representation of a real-world signal transformation by processing the signal according to one or more signal processing parameters that are characteristic of the real-world signal transformation. The emulation circuit can apply analog signal processing and/or mixed signal processing to the signal. The signal processing can comprise feeding the signal through two signal paths, each having a different delay, and creating a weighted sum of the outputs of the two signal paths. The signal processing can also (or alternatively) comprise routing the signal through a network of delay elements, wherein a bank of switching or routing elements determines the route and thus the resulting delay.

摘要翻译： 电路可以处理信号的样本以对信号进行模拟，模拟或建模。 因此，仿真电路可以通过根据作为真实世界信号变换的特征的一个或多个信号处理参数处理信号来产生现实世界信号变换的表示。 仿真电路可以对信号进行模拟信号处理和/或混合信号处理。 信号处理可以包括通过两个信号路径馈送信号，每个信号路径具有不同的延迟，并且产生两个信号路径的输出的加权和。 信号处理还可以（或者可选地）包括通过延迟元件的网络路由信号，其中一组交换或路由元件确定路由并且因此确定所得到的延迟。

公开(公告)号：US06271727B1

公开(公告)日：2001-08-07

申请号：US09370116

申请日：1999-08-06

申请人： Bruce C. Schmukler

发明人： Bruce C. Schmukler

IPC分类号： H03G310

CPC分类号： H03G1/0058

摘要： A PIN diode attenuator and associated control circuits prevents self-biasing of bipolar device RF power amplifiers under large signal drive conditions. A power amplifier control signal controls the amount of current through the PIN diode attenuator. When the control signal is high for maximum output power, the PIN diode attenuator is turned off to obtain maximum drive level for the first RF stage. When the control signal is low for maximum isolation, the PIN diode attenuator is turned on to reduce the drive level and to avoid self-biasing. The PIN diode attenuator and associated control circuits allow the RF power amplifier to operate normally when the amplifier is in its forward gain mode. The RF input signals to the power amplifier are attenuated however, when the amplifier is turned off or in a transition state between the forward gain mode and the off mode, to ensure a high isolation state that prevents self-biasing of the power amplifier or portions thereof under large signal conditions.

摘要翻译： PIN二极管衰减器和相关的控制电路在大信号驱动条件下阻止双极器件RF功率放大器的自偏置。 一个功率放大器控制信号控制通过PIN二极管衰减器的电流量。 当控制信号为最大输出功率时，PIN二极管衰减器关闭，以获得第一RF级的最大驱动电平。 当控制信号为低电平以进行最大隔离时，PIN二极管衰减器导通，以降低驱动电平并避免自偏置。 PIN二极管衰减器和相关控制电路允许RF功率放大器在放大器处于其正向增益模式时正常工作。 然而，到功率放大器的RF输入信号被衰减，当放大器关断或处于正向增益模式和关断模式之间的转变状态时，为了确保高的隔离状态，防止功率放大器或部分的自偏置 在大信号条件下。

公开(公告)号：US5374328A

公开(公告)日：1994-12-20

申请号：US37074

申请日：1993-03-25

申请人： Ronald D. Remba ,  Paul E. Brunemeier ,  Bruce C. Schmukler ,  Walter A. Strifler ,  Daniel H. Rosenblatt

发明人： Ronald D. Remba ,  Paul E. Brunemeier ,  Bruce C. Schmukler ,  Walter A. Strifler ,  Daniel H. Rosenblatt

IPC分类号： C23F1/02 ,  C09K13/06 ,  C23F1/16 ,  C30B33/10 ,  H01L21/306 ,  H01L21/308 ,  H01L21/335 ,  H01L21/338 ,  H01L29/812 ,  B44C1/22

CPC分类号： H01L29/66462 ,  H01L21/30612

摘要： A solution of hydrogen peroxide [H.sub.2 O.sub.2 ], citric acid [HOC(CH.sub.2 COOH).sub.2 COOH.H.sub.2 O], and a salt of citric acid such as potassium citrate [HOC(CH.sub.2 COOK).sub.2 COOK.H.sub.2 O], and hydrogen peroxide [H.sub.2 O.sub.2 ], in a proper pH range, selectively etches GaAs-containing Group III-V compounds in the presence of other Group III-V compounds. As an illustration, Al.sub.y Ga.sub.1-y As is selectively etched in the presence of Al.sub.x Ga.sub.1-x As (0.ltoreq.y 0.2) when the pH range of the etchant solution is between approximately 3 and 6. The etchant solution described herein may be utilized in the fabrication of, for example, high-frequency transistors exhibiting improved saturated current (I.sub.dss) and threshold voltage (V.sub.th) uniformity.

摘要翻译： 将过氧化氢[H 2 O 2]，柠檬酸[HOC（CH 2 COOH）2 COOH·H 2 O]和柠檬酸盐如柠檬酸钾[HOC（CH 2 COOK）2 COOK.H 2 O]和过氧化氢[H 2 O 2] 适当的pH范围，在其他III-V族化合物的存在下选择性蚀刻含GaAs的III-V族化合物。 作为说明，当蚀刻剂溶液的pH范围在约3和6之间时，在Al x Ga 1-x As（0≤y<0.2> x> 0.2）的存在下，选择性地蚀刻Al y Ga 1-y As。本文所述的蚀刻剂溶液 可以用于制造例如表现出改进的饱和电流（Idss）和阈值电压（Vth）均匀性的高频晶体管。

公开(公告)号：USRE36185E

公开(公告)日：1999-04-06

申请号：US751776

申请日：1996-12-05

申请人： Ronald E. Remba ,  Paul E. Brunemeier ,  Bruce C. Schmukler ,  Walter A. Strifler ,  Daniel H. Rosenblatt

发明人： Ronald E. Remba ,  Paul E. Brunemeier ,  Bruce C. Schmukler ,  Walter A. Strifler ,  Daniel H. Rosenblatt

IPC分类号： C23F1/02 ,  C09K13/06 ,  C23F1/16 ,  C30B33/10 ,  H01L21/306 ,  H01L21/308 ,  H01L21/335 ,  H01L21/338 ,  H01L29/812 ,  B44C1/22

CPC分类号： H01L29/66462 ,  H01L21/30612

摘要： A solution of hydrogen peroxide �H.sub.2 O.sub.2 !, citric acid �HOC(CH.sub.2 COOH).sub.2 COOH.H.sub.2 O!, and a salt of citric acid such as potassium citrate �HOC(CH.sub.2 COOK).sub.2 COOK.H.sub.2 O!, and hydrogen peroxide �H.sub.2 O.sub.2 !, in a proper pH range, selectively etches GaAs-containing Group III-V compounds in the presence of other Group III-V compounds. As an illustration, Al.sub.y Ga.sub.1-y As is selectively etched in the presence of Al.sub.x Ga.sub.1-x As (0.ltoreq.y 0.2) when the pH range of the etchant solution is between approximately 3 and 6. The etchant solution described herein may be utilized in the fabrication of, for example, high-frequency transistors exhibiting improved saturated current (I.sub.dss) and threshold voltage (V.sub.th) uniformity.

摘要翻译： 将过氧化氢[H 2 O 2]，柠檬酸[HOC（CH 2 COOH）2 COOH·H 2 O]和柠檬酸盐如柠檬酸钾[HOC（CH 2 COOK）2 COOK.H 2 O]和过氧化氢[H 2 O 2] 适当的pH范围，在其他III-V族化合物的存在下选择性蚀刻含GaAs的III-V族化合物。 作为说明，当蚀刻剂溶液的pH范围在约3和6之间时，在Al x Ga 1-x As（0≤y<0.2> x> 0.2）的存在下，选择性地蚀刻Al y Ga 1-y As。本文所述的蚀刻剂溶液 可以用于制造例如表现出改进的饱和电流（Idss）和阈值电压（Vth）均匀性的高频晶体管。