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1. 发明授权

US09974463B2 Hand-held device for electrical impedance myography 有权
公开(公告)号：US09974463B2
公开(公告)日：2018-05-22
申请号：US13391484
申请日：2010-08-20
申请人： Seward B. Rutkove , Joel L. Dawson
发明人： Seward B. Rutkove , Joel L. Dawson
IPC分类号： A61B5/053 , A61B5/00
CPC分类号： A61B5/053 , A61B5/0536 , A61B5/0537 , A61B5/4519 , A61B5/6843 , A61B2560/0252 , A61B2560/0276 , A61B2562/0209 , A61B2562/046
摘要： A device for determining muscle condition of a region of tissue. The device comprises an electrical impedance myography (EIM) portable probe bearing an electrode array. The electrode array comprises excitation electrodes used to apply multi-frequency electrical signals to the region of tissue and pickup electrodes that are used to collect electrical signals resulting from the application of the multi-frequency electrical signals to the region of tissue. To improve accuracy and reproducibility of EIM measurements, the electrode array is reconfigurable to select different subsets of excitation and pickup electrodes so that the electrodes are oriented differently with respect to muscle fibers. Additional devices may be associated with the EIM probe to measure such parameters as temperature, moisture content of the region, quality of contact of electrodes of the electrode array with a surface of the region and pressure with which the EEM probe is applied to the region. The EIM measurements may be adjusted based on these parameters. Also, ultrasound and electrical impedance tomography measurements may supplement the ELM measurements for more complete analysis of the muscle condition.

2. 发明申请

US20120245436A1 HAND-HELD DEVICE FOR ELECTRICAL IMPEDANCE MYOGRAPHY 有权
标题翻译：手持式电磁感应装置
公开(公告)号：US20120245436A1
公开(公告)日：2012-09-27
申请号：US13391484
申请日：2010-08-20
申请人： Seward B. Rutkove , Joel L. Dawson
发明人： Seward B. Rutkove , Joel L. Dawson
IPC分类号： A61B5/04 , A61B5/01 , A61B5/05 , A61B5/103 , A61B5/0492 , A61B8/00 , A61B5/053 , A61B5/00
CPC分类号： A61B5/053 , A61B5/0536 , A61B5/0537 , A61B5/4519 , A61B5/6843 , A61B2560/0252 , A61B2560/0276 , A61B2562/0209 , A61B2562/046
摘要： A device for determining muscle condition of a region of tissue. The device comprises an electrical impedance myography (EIM) portable probe bearing an electrode array. The electrode array comprises excitation electrodes used to apply multi-frequency electrical signals to the region of tissue and pickup electrodes that are used to collect electrical signals resulting from the application of the multi-frequency electrical signals to the region of tissue. To improve accuracy and reproducibility of EIM measurements, the electrode array is reconfigurable to select different subsets of excitation and pickup electrodes so that the electrodes are oriented differently with respect to muscle fibers. Additional devices may be associated with the EIM probe to measure such parameters as temperature, moisture content of the region, quality of contact of electrodes of the electrode array with a surface of the region and pressure with which the EEM probe is applied to the region. The EIM measurements may be adjusted based on these parameters. Also, ultrasound and electrical impedance tomography measurements may supplement the ELM measurements for more complete analysis of the muscle condition.
摘要翻译：用于确定组织区域的肌肉状况的装置。该装置包括具有电极阵列的电阻抗成像（EIM）便携式探针。电极阵列包括用于将多频电信号施加到组织和拾取电极的区域的激励电极，所述区域用于收集由多频电信号施加到组织区域而产生的电信号。为了提高EIM测量的精度和再现性，电极阵列是可重构的，以选择激励和拾取电极的不同子集，使得电极相对于肌肉纤维取向不同。附加装置可以与EIM探针相关联，以测量诸如区域的温度，水分含量，电极阵列的电极与区域表面的接触质量以及将EEM探针施加到该区域的压力等参数。可以基于这些参数调整EIM测量。此外，超声和电阻抗层析成像测量可补充ELM测量以更完整地分析肌肉状况。

3. 发明授权

US07433420B1 Phase rotation estimation 有权
标题翻译：相位旋转估计
公开(公告)号：US07433420B1
公开(公告)日：2008-10-07
申请号：US11061153
申请日：2005-02-18
申请人： Sriraman Dakshinamurthy , Joel L. Dawson , Derek K. Shaeffer , Korhan Titizer
发明人： Sriraman Dakshinamurthy , Joel L. Dawson , Derek K. Shaeffer , Korhan Titizer
IPC分类号： H04L25/49
CPC分类号： H04L27/368
摘要： Apparatus, systems, and methods are described that implement techniques for estimating a relative rotation between a first complex signal and a second complex signal. In apparatus form, a rotation-estimation circuit includes a first quadrant detector and receives the first and second complex signals and produces an estimate of the relative rotation between the complex signals. A variable rotator receives the estimate of the relative rotation and rotates at least one of the first and second complex signals using the estimate of the relative rotation. In method form, a first quadrant estimate is calculated that corresponds to the relative rotation between the first and second complex signals, and at least one of the first and second complex signals is rotated using the quadrant estimate of the relative rotation.
摘要翻译：描述了实现用于估计第一复信号和第二复信号之间的相对旋转的技术的装置，系统和方法。在装置形式中，旋转估计电路包括第一象限检测器，并接收第一和第二复数信号，并产生复信号之间的相对旋转的估计。可变旋转器接收相对旋转的估计，并使用相对旋转的估计来旋转第一和第二复数信号中的至少一个。在方法形式中，计算对应于第一和第二复数信号之间的相对旋转的第一象限估计，并且使用相对旋转的象限估计来旋转第一和第二复数信号中的至少一个。

4. 发明授权

US5940291A Low-complexity adaptive controller 失效
标题翻译：低复杂度自适应控制器
公开(公告)号：US5940291A
公开(公告)日：1999-08-17
申请号：US853083
申请日：1997-05-08
申请人： Joel L. Dawson , Jenshan Lin , Young-Kai Chen
发明人： Joel L. Dawson , Jenshan Lin , Young-Kai Chen
IPC分类号： G05B13/02
CPC分类号： G05B13/021
摘要： In accordance with one embodiment of the present intention, an adaptive feedback controller is configured to substantially reduce an error control signal defined by the difference between a command signal and the output signal of a controlled device. The adaptive controller comprises a step generator circuit configured to provide a control signal which is employed to vary the input signal received by the controlled device, The control signal is substantially in the shape of a ramp signal having a given slew rate. An adaptive slew rate computation circuit is coupled to the step generator so as to provide a slew rate compensation signal to the step generator to increase the slew rate of the control signal, when the controlled device is responding to a substantially fast varying input signal. The slew rate compensation circuit decreases the slew rate of the control signal, when the controlled device is responding to a slow varying input signal.
摘要翻译：根据本意图的一个实施例，自适应反馈控制器被配置为基本上减少由控制设备的命令信号和输出信号之间的差定义的误差控制信号。自适应控制器包括步进发生器电路，其被配置为提供用于改变由受控设备接收的输入信号的控制信号。控制信号基本上是具有给定转换速率的斜坡信号的形状。自适应转换速率计算电路耦合到步进发生器，以便当受控装置响应于基本上快速变化的输入信号时，向步进发生器提供转换速率补偿信号以增加控制信号的转换速率。当控制装置响应慢变化的输入信号时，转换速率补偿电路降低控制信号的转换速率。

5. 发明授权

US08957727B2 Asymmetric multilevel outphasing architecture for RF amplifiers 有权
标题翻译：射频放大器的非对称多电平外相结构
公开(公告)号：US08957727B2
公开(公告)日：2015-02-17
申请号：US13798738
申请日：2013-03-13
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/217 , H03F1/02 , H03F3/60
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

6. 发明授权

US08659353B2 Asymmetric multilevel outphasing architecture for RF amplifiers 有权
标题翻译：射频放大器的非对称多电平外相结构
公开(公告)号：US08659353B2
公开(公告)日：2014-02-25
申请号：US13423909
申请日：2012-03-19
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/68
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

7. 发明授权

US08164384B2 Asymmetric multilevel outphasing architecture for RF amplifiers 有权
标题翻译：射频放大器的非对称多电平外相结构
公开(公告)号：US08164384B2
公开(公告)日：2012-04-24
申请号：US13106195
申请日：2011-05-12
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/68
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

8. 发明申请

US20110215866A1 ASYMMETRIC MULTILEVEL OUTPHASING ARCHITECTURE FOR RF AMPLIFIERS 有权
标题翻译：用于射频放大器的不对称多路输出架构
公开(公告)号：US20110215866A1
公开(公告)日：2011-09-08
申请号：US13106195
申请日：2011-05-12
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/68 , G06G7/12 , G06G7/14
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

9. 发明申请

US20140125412A1 Asymmetric Multilevel Outphasing Architecture For RF Amplifiers 有权
标题翻译：用于射频放大器的非对称多电平外相结构
公开(公告)号：US20140125412A1
公开(公告)日：2014-05-08
申请号：US13798738
申请日：2013-03-13
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/217
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

10. 发明申请

US20120176195A1 Asymmetric Multilevel Outphasing Architecture For RF Amplifiers 有权
标题翻译：用于射频放大器的非对称多电平外相结构
公开(公告)号：US20120176195A1
公开(公告)日：2012-07-12
申请号：US13423909
申请日：2012-03-19
申请人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
发明人： Joel L. Dawson , David J. Perreault , SungWon Chung , Philip Godoy , Everest Huang
IPC分类号： H03F3/68
CPC分类号： H03F3/217 , H03F1/0244 , H03F1/0277 , H03F1/0294 , H03F3/2176 , H03F3/602
摘要： A radio frequency (RF) circuit includes a power supply configured to generate a plurality of voltages, a plurality of power amplifiers, each having an RF output port and a power supply input port, a switch network having a plurality of input ports coupled to the power supply and a plurality of switch network output ports coupled to the power supply input ports of the plurality of power amplifiers, wherein the switch network is configured to output selected ones of the plurality of voltages from the plurality of switch network output ports, at least two of the switch network output port voltages capable of being different ones of the plurality of voltages, and an RF power combiner circuit having a plurality of input ports coupled to RF output ports of the plurality of power amplifiers and an output port at which is provided an output signal of the RF circuit.
摘要翻译：射频（RF）电路包括被配置为产生多个电压的电源，多个功率放大器，每个具有RF输出端口和电源输入端口，开关网络具有耦合到所述多个输入端口的多个输入端口电源和耦合到所述多个功率放大器的电源输入端口的多个开关网络输出端口，其中所述开关网络被配置为从所述多个开关网络输出端口输出所述多个电压中的选定电压，至少开关网络输出端口电压中的两个能够是多个电压中的不同的电压，以及RF功率组合器电路，其具有耦合到多个功率放大器的RF输出端口的多个输入端口和设置在该输出端口的输出端口 RF电路的输出信号。

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