公开(公告)号：US06304140B1

公开(公告)日：2001-10-16

申请号：US09592216

申请日：2000-06-12

申请人： Christopher P. Thron ,  Michael B. Thomas ,  David J. Anderson

发明人： Christopher P. Thron ,  Michael B. Thomas ,  David J. Anderson

IPC分类号： H03F126

CPC分类号： H03F1/3247 ,  H03F1/3282

摘要： A method for predistorting a digital signal prior to amplification is disclosed in which a look-up table is computed using power values of digital input signal samples as look-up values. The look-up table is preferably a function of pre-measured calibration data. The look-up table is applied to digital input signals for producing the predistorted signal. Computing the look-up table may include determining a set of input power values, obtaining the pre-measured calibration data including an output power data value and phase data value of the amplifier corresponding to each of the input power values, and deriving a set of calibration power values using the output power data values. The calibration power values and the input power values are then used to derive amplitude predistortion calibration values while the phase data values are used to determine phase predistortion calibration values. The calibration power values and corresponding amplitude predistortion calibration values are interpolated to provide amplitude predistortion values while the calibration power values and corresponding phase predistortion calibration values are interpolated to provide phase predistortion values. The look-up table is computed from the amplitude predistortion values and the phase predistortion values.

摘要翻译： 公开了一种用于在放大之前预失真数字信号的方法，其中使用数字输入信号样本的功率值作为查找值来计算查找表。 查找表优选地是预先测量的校准数据的函数。 查找表适用于数字输入信号，用于产生预失真信号。 计算查找表可以包括确定一组输入功率值，获得包括与每个输入功率值相对应的放大器的输出功率数据值和相位数据值的预测量的校准数据，并且导出一组 使用输出功率数据值校准功率值。 然后使用校准功率值和输入功率值来导出幅度预失真校准值，同时使用相位数据值来确定相位预失真校准值。 内插校准功率值和相应的幅度预失真校准值以提供幅度预失真值，同时内插校准功率值和相应的相位预失真校准值以提供相位预失真值。 查找表根据幅度预失真值和相位预失真值计算。

公开(公告)号：US06477477B1

公开(公告)日：2002-11-05

申请号：US09592524

申请日：2000-06-12

申请人： Christopher P. Thron ,  T. Keith Blankenship ,  Michael B. Thomas

发明人： Christopher P. Thron ,  T. Keith Blankenship ,  Michael B. Thomas

IPC分类号： G01D1800

CPC分类号： H03F1/3294 ,  H03F1/3247

摘要： A method for linearizing an amplifier to produce an amplified output signal from a set of carrier frequencies is disclosed in which a set of digital baseband signals corresponding to the set of carrier frequencies are combined to produce an extended digital baseband signal. Look-up values are then derived from the power values of the extended digital baseband signal and applied to a look-up table to obtain predistortion values. One or more predistorted signals are then produced by complex mixing the predistortion values with one of the set of extended digital baseband signals. The predistorted signal(s) are then amplified to produced an output signal which is linearly related to the set of digital baseband signals. In one embodiment, linearly combining the set of digital baseband signals includes complex mixing individual digital baseband signals of the set of digital baseband signals with trigonometric signals to produce complex mixed signals and adding the complex mixed signals to produce the extended digital baseband signal. Producing one or more predistorted signals may include upconverting the predistorted signals synchronously when the predistorted signals are a complex mixing of the predistortion values and the set of digital baseband signals. In one embodiment, the look-up table is a function of pre-measured calibration data.

摘要翻译： 公开了一种用于线性化放大器以从一组载波频率产生放大的输出信号的方法，其中将一组对应于载波频率的数字基带信号组合以产生扩展的数字基带信号。 然后从扩展数字基带信号的功率值导出查找值，并将其应用于查找表以获得预失真值。 然后通过将预失真值与该组扩展数字基带信号中的一个混合来产生一个或多个预失真信号。 然后对预失真信号进行放大，以产生与该组数字基带信号线性相关的输出信号。 在一个实施例中，线性地组合数字基带信号集合包括具有三角信号的数字基带信号集合的单独数字基带信号的复合混合，以产生复杂的混合信号，并且将复合混合信号相加以产生扩展的数字基带信号。 产生一个或多个预失真信号可以包括当预失真信号是预失真值和数字基带信号集合的复混合时同步地上变频预失真信号。 在一个实施例中，查找表是预先测量的校准数据的函数。

公开(公告)号：US4178437A

公开(公告)日：1979-12-11

申请号：US924515

申请日：1978-07-14

申请人： Michael B. Thomas

发明人： Michael B. Thomas

IPC分类号： C07H15/234 ,  C07H15/22 ,  C07H15/236 ,  A61K31/71

CPC分类号： C07H15/234

摘要： 3-N-formyl derivatives of 3",6'-di-N-acyl-kanamycin A and 2',3",6'-tri-N-acyl-kanamycin B, process for their preparation, and their use as intermediates for production of antibacterially active 1-N-(substituted) derivatives of kanamycins A and B by alkylation and subsequent removal of the formyl and acyl groups.

摘要翻译： 3'，6'-二-N-酰基卡那霉素A和2'，3“，6'-三-N-酰基卡那霉素B的3-N-甲酰基衍生物，其制备方法及其用途 作为通过烷基化和随后除去甲酰基和酰基生产卡那霉素A和B的抗菌活性1-N-（取代）衍生物的中间体。

公开(公告)号：US20120263258A1

公开(公告)日：2012-10-18

申请号：US13444390

申请日：2012-04-11

申请人： Michael S. LaBelle ,  Michael Shane Moore ,  Jamel Benbrik ,  Michael B. Thomas ,  Stephen E. Richard

发明人： Michael S. LaBelle ,  Michael Shane Moore ,  Jamel Benbrik ,  Michael B. Thomas ,  Stephen E. Richard

IPC分类号： H04B1/04 ,  H04L27/04

CPC分类号： H04B1/1615 ,  H04B1/1607 ,  H04B2001/0416 ,  H04L27/04

摘要： An apparatus comprises at least one transmit amplifier and rectification circuitry located in the at least one transmit amplifier, which is configured to receive a RF signal and provide a rectified voltage, which is selectably added to a voltage supplied by a battery to generate a DC voltage supply signal that is a function of RF power level. A controller is configured to select between providing the VBAT or the VSupply signal to a transmit switch depending on one or more of a logic state and a mode of operation. An alternate apparatus comprises a charge pump circuit configured to quickly raise a voltage supplied to it and store the output voltage on a capacitor and then either shift a first frequency provided by a charge pump oscillator to a lower second frequency or turn off a charge pump clock to maintain a voltage on the capacitor during a transmit mode.

摘要翻译： 一种装置包括位于至少一个发射放大器中的至少一个发射放大器和整流电路，该发射放大器和整流电路被配置为接收RF信号并提供整流电压，该整流电压可选择地加到电池提供的电压上以产生直流电压 供电信号是RF功率电平的函数。 控制器被配置为根据逻辑状态和操作模式中的一个或多个来向发送开关提供VBAT或VSupply信号之间进行选择。 备选装置包括电荷泵电路，其被配置为快速升高提供给它的电压并将输出电压存储在电容器上，然后将由电荷泵振荡器提供的第一频率移动到较低的第二频率或者关闭电荷泵时钟 以在发送模式期间保持电容器上的电压。

公开(公告)号：US08791760B2

公开(公告)日：2014-07-29

申请号：US13529177

申请日：2012-06-21

申请人： Praveen Varma Nadimpalli ,  Mike Landherr ,  Michael B. Thomas ,  Wonseok Oh

发明人： Praveen Varma Nadimpalli ,  Mike Landherr ,  Michael B. Thomas ,  Wonseok Oh

IPC分类号： H03F3/04

CPC分类号： H03F3/191 ,  H03F1/0266 ,  H03F1/302 ,  H03F1/56 ,  H03F3/245 ,  H03F2200/108 ,  H03F2200/15 ,  H03F2200/387 ,  H03F2200/555 ,  H03G3/3042

摘要： This disclosure relates to radio frequency (RF) amplification devices and methods for amplifying an RF input signal. To set the quiescent operating level of the RF output signal, a bias signal to be applied to the RF input signal is received prior to amplifying the RF input signal. The bias signal is amplified to generate the RF output signal at the quiescent operating level and a feedback signal is received that is indicative of the quiescent operating level of the RF output signal. Prior to amplifying the RF input signal, the bias signal level of the bias signal is adjusted such that the quiescent operating level is set to a reference signal level based on the feedback signal level. This allows for adjustments to be made to the quiescent operating level and maintain the quiescent operating level at a desired value.

摘要翻译： 本公开涉及用于放大RF输入信号的射频（RF）放大装置和方法。 为了设置RF输出信号的静态工作电平，在放大RF输入信号之前接收要施加到RF输入信号的偏置信号。 偏置信号被放大以产生处于静态工作电平的RF输出信号，并且接收到指示RF输出信号的静态工作电平的反馈信号。 在放大RF输入信号之前，调整偏置信号的偏置信号电平，使得基于反馈信号电平将静态工作电平设置为参考信号电平。 这允许对静态操作电平进行调整，并将静态工作电平维持在期望值。

公开(公告)号：US20120326778A1

公开(公告)日：2012-12-27

申请号：US13529177

申请日：2012-06-21

申请人： Praveen Varma Nadimpalli ,  Mike Landherr ,  Michael B. Thomas ,  Wonseok Oh

发明人： Praveen Varma Nadimpalli ,  Mike Landherr ,  Michael B. Thomas ,  Wonseok Oh

IPC分类号： H03F1/34

CPC分类号： H03F3/191 ,  H03F1/0266 ,  H03F1/302 ,  H03F1/56 ,  H03F3/245 ,  H03F2200/108 ,  H03F2200/15 ,  H03F2200/387 ,  H03F2200/555 ,  H03G3/3042

摘要： This disclosure relates to radio frequency (RF) amplification devices and methods for amplifying an RF input signal. To set the quiescent operating level of the RF output signal, a bias signal to be applied to the RF input signal is received prior to amplifying the RF input signal. The bias signal is amplified to generate the RF output signal at the quiescent operating level and a feedback signal is received that is indicative of the quiescent operating level of the RF output signal. Prior to amplifying the RF input signal, the bias signal level of the bias signal is adjusted such that the quiescent operating level is set to a reference signal level based on the feedback signal level. This allows for adjustments to be made to the quiescent operating level and maintain the quiescent operating level at a desired value.

摘要翻译： 本公开涉及用于放大RF输入信号的射频（RF）放大装置和方法。 为了设置RF输出信号的静态工作电平，在放大RF输入信号之前接收要施加到RF输入信号的偏置信号。 偏置信号被放大以产生处于静态工作电平的RF输出信号，并且接收到指示RF输出信号的静态工作电平的反馈信号。 在放大RF输入信号之前，调整偏置信号的偏置信号电平，使得基于反馈信号电平将静态工作电平设置为参考信号电平。 这允许对静态操作电平进行调整，并将静态工作电平维持在期望值。

公开(公告)号：US07001465B1

公开(公告)日：2006-02-21

申请号：US10667999

申请日：2003-09-22

申请人： Michael B. Thomas

发明人： Michael B. Thomas

IPC分类号： B05C3/132

CPC分类号： B05C3/125 ,  B05C3/132 ,  Y10S118/19

摘要： A container with a quantity of coating liquid includes a luminescent pigment and a paint base. An impeller is in proximity to the bottom of the container to keep the pigment in suspension in the paint base. The container also has a linear inlet slot and a linear outlet slot. A feeding assembly includes a supply roll, a take up roll and a plurality of idler rolls to move a plurality of nylon straps from the supply roll, across the take up rolls and through the container and liquid therein and to the take up roll. A drying assembly is provided for nylon straps moving between the outlet slot and the take up roll. Also provided is a method and material.

摘要翻译： 具有一定量的涂布液的容器包括发光颜料和涂料基料。 叶轮靠近容器的底部，以使颜料悬浮在油漆基体中。 容器还具有线性入口槽和线性出口槽。 进料组件包括供料辊，卷取辊和多个惰辊，以使多个尼龙带从供应辊移过卷取辊，并通过其中的容器和液体以及卷取辊。 提供干燥组件用于在出口狭缝和卷绕辊之间移动的尼龙带。 还提供了一种方法和材料。