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1. 发明申请

US20070052481A1 Method and apparatus for protecting RF power amplifiers 有权
标题翻译：用于保护RF功率放大器的方法和装置
公开(公告)号：US20070052481A1
公开(公告)日：2007-03-08
申请号：US11222545
申请日：2005-09-08
申请人： David Newman , Benjamin Gilsdorf , David Peckham
发明人： David Newman , Benjamin Gilsdorf , David Peckham
IPC分类号： H03F1/52
CPC分类号： H03F3/189 , H03F1/52
摘要： Method and apparatus are provided for protecting radio frequency (RF) power amplifiers. A circuit (10) is provided for limiting a supply current to a first stage (Q3) of the RF power amplifier having a second stage (Q2) coupled to the first stage. The circuit comprises a comparator (14) having first and second inputs and an output, and a switching circuit (12, 20, 22, 24) having an input coupled to the output of the comparator (14) and having an output configured to couple to the first stage (Q3). The first input of the comparator (14) is configured to receive the supply current, and the second input is configured to receive a current supplied to the second stage (Q2). The comparator (14) is configured to compare a ratio of the supply current to the first stage to the current supplied to the second stage (Q2) with a predetermined value. The switching circuit (12, 20, 22, 24) is configured to limit the supply current to the first stage (Q3) when the ratio exceeds the predetermined value.
摘要翻译：提供了用于保护射频（RF）功率放大器的方法和装置。提供电路（10）用于限制具有耦合到第一级的第二级（Q 2）的RF功率放大器的第一级（Q 3）的电源电流。该电路包括具有第一和第二输入和一个输出的比较器（14）和一个具有耦合到比较器（14）的输出的输入的开关电路（12,20,22,24），并且具有被配置为耦合的输出到第一阶段（问3）。比较器（14）的第一输入被配置为接收电源电流，并且第二输入被配置为接收提供给第二级（Q 2）的电流。比较器（14）被配置为将供应电流与第一级的比率与以第一级提供给第二级（Q 2）的电流进行比较。开关电路（12,20,22,24）被配置为当该比率超过预定值时将供电电流限制到第一级（Q 3）。

2. 发明申请

US20130039438A1 SYSTEM AND METHOD FOR A MULTI-BAND TRANSMITTER 有权
标题翻译：一种多带发射机的系统和方法
公开(公告)号：US20130039438A1
公开(公告)日：2013-02-14
申请号：US13207786
申请日：2011-08-11
申请人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
发明人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
IPC分类号： H04L27/00
CPC分类号： H03D7/1441 , H03D7/1458 , H03D2200/0023 , H04B1/0057 , H04B1/0483
摘要： In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.
摘要翻译：根据本公开的一些实施例，多频带发射机包括多个频带路径，每个频带路径被配置用于不同的频率范围。每个频带路径包括被配置为将数据信号调制到与频带路径的频率范围相关联的载波信号上以产生与频带路径的频带路径和频带范围相关联的射频（RF）信号的调制器。每个频带路径还包括降压平衡 - 不平衡变压器，其包括被配置为从调制器接收RF信号的输入线圈。每个频带路径还包括被配置为将输入线圈调谐到频带路径的频率范围的调谐器。调谐器还被配置为补偿调谐器的开关的截止状态传导，以减少与断开状态传导相关联的平衡 - 不平衡变换器的非线性调谐效应。

3. 发明申请

US20060084403A1 Radio frequency power amplifier 有权
标题翻译：射频功率放大器
公开(公告)号：US20060084403A1
公开(公告)日：2006-04-20
申请号：US10970098
申请日：2004-10-20
申请人： Benjamin Gilsdorf , Gilles Montoriol , David Newman , Jacques Trichet
发明人： Benjamin Gilsdorf , Gilles Montoriol , David Newman , Jacques Trichet
IPC分类号： H04B1/06
CPC分类号： H03F1/30 , H03F1/0211 , H03F3/24 , H03F3/72 , H03F2200/78 , H04B2001/0408
摘要： A radio frequency (RF) power amplification circuit including a power amplifier is provided for preventing breakdown of the power amplifier. The power amplifier includes an input for receiving RF signals and an output for providing amplified RF signals. The RF power amplification circuit also includes a bias circuit coupled to the input of the power amplifier to permit normal operation of the power amplifier when the base current is below a predetermined current threshold and to prevent normal operation of the power amplifier when the base current is above the predetermined current threshold.
摘要翻译：提供了包括功率放大器的射频（RF）功率放大电路，用于防止功率放大器的击穿。功率放大器包括用于接收RF信号的输入和用于提供放大的RF信号的输出。 RF功率放大电路还包括耦合到功率放大器的输入端的偏置电路，以便当基极电流低于预定电流阈值时允许功率放大器的正常操作，并且当基极电流为基极电流时，防止功率放大器的正常工作高于预定电流阈值。

4. 发明申请

US20070109055A1 Soft saturation detection for power amplifiers 有权
标题翻译：功率放大器的软饱和检测
公开(公告)号：US20070109055A1
公开(公告)日：2007-05-17
申请号：US11282734
申请日：2005-11-17
申请人： George Norris , Benjamin Gilsdorf , David Newman
发明人： George Norris , Benjamin Gilsdorf , David Newman
IPC分类号： H03F1/52
CPC分类号： H03F3/24 , H03F1/0205 , H03F1/32 , H03F3/189 , H03F2200/78
摘要： A soft saturation detection circuit for a radio frequency (“RF”) power amplifier is configured to detect the onset of soft saturation in an unambiguous and accurate manner. The circuit compares the time derivative of a voltage signal indicative of the RF output power to the time derivative of a control voltage signal for the RF power amplifier. The circuit also employs a gating mechanism that ensures that a soft saturation indication signal is generated under appropriate operating conditions.
摘要翻译：用于射频（“RF”）功率放大器的软饱和度检测电路被配置为以明确和准确的方式检测软饱和的开始。电路将指示RF输出功率的电压信号的时间导数与RF功率放大器的控制电压信号的时间导数进行比较。电路还采用门控机构，确保在适当的工作条件下产生软饱和指示信号。

5. 发明授权

US08447246B2 System and method for a multi-band transmitter 有权
标题翻译：多波段发射机的系统和方法
公开(公告)号：US08447246B2
公开(公告)日：2013-05-21
申请号：US13207786
申请日：2011-08-11
申请人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
发明人： Omid Oliaei , David Newman , Benjamin Gilsdorf , Patrick L. Rakers
IPC分类号： H04B1/04
CPC分类号： H03D7/1441 , H03D7/1458 , H03D2200/0023 , H04B1/0057 , H04B1/0483
摘要： In accordance with some embodiments of the present disclosure, a multi-band transmitter comprises a plurality of band paths with each band path configured for a different frequency range. Each band path comprises a modulator configured to modulate a data signal onto a carrier signal associated with the frequency range of the band path to generate a radio frequency (RF) signal associated with the band path and frequency range of the band path. Each band path also comprises a step-down balun that includes an input coil configured to receive the RF signal from the modulator. Each band path further comprises a tuner configured to tune the input coil to the frequency range of the band path. The tuner is also configured to compensate for off-state conduction of switches of the tuner to reduce non-linear tuning effects of the balun associated with the off-state conduction.
摘要翻译：根据本公开的一些实施例，多频带发射机包括多个频带路径，每个频带路径被配置用于不同的频率范围。每个频带路径包括被配置为将数据信号调制到与频带路径的频率范围相关联的载波信号上以产生与频带路径的频带路径和频带范围相关联的射频（RF）信号的调制器。每个频带路径还包括降压平衡 - 不平衡变压器，其包括被配置为从调制器接收RF信号的输入线圈。每个频带路径还包括被配置为将输入线圈调谐到频带路径的频率范围的调谐器。调谐器还被配置为补偿调谐器的开关的截止状态传导，以减少与断开状态传导相关联的平衡 - 不平衡变换器的非线性调谐效应。

6. 发明申请

US20070026838A1 Power amplifier with VSWR detection and correction feature 有权
标题翻译：具有VSWR检测和校正功能的功率放大器
公开(公告)号：US20070026838A1
公开(公告)日：2007-02-01
申请号：US11191687
申请日：2005-07-27
申请人： Joseph Staudinger , Benjamin Gilsdorf , David Newman , George Norris , Gary Sadowniczak , Richard Sherman
发明人： Joseph Staudinger , Benjamin Gilsdorf , David Newman , George Norris , Gary Sadowniczak , Richard Sherman
IPC分类号： H04B1/16
CPC分类号： H04B1/0458 , H03F1/0205 , H03F1/0261 , H03F1/32 , H03F3/24 , H03F2200/105 , H03G3/3047 , H04B2001/0416
摘要： A radio frequency (“RF”) power amplifier circuit as described herein is configured to detect and measure an output load mismatch and to adjust the operating characteristics of the RF power amplifier to reduce output signal distortion. The circuit includes a directional RF signal coupler that obtains a coupled reflected RF signal that is indicative of the output load mismatch. The coupled reflected RF signal is processed to generate one or more bias control signals for the RF power amplifier. In operation, a mismatch condition will result in a measurable coupled reflected RF signal and a corresponding reduction in output power from the RF power amplifier. Ultimately, the output power control mechanism strives to maintain the RF power amplifier within a linear operating range.
摘要翻译：如本文所述的射频（“RF”）功率放大器电路被配置为检测和测量输出负载失配并且调整RF功率放大器的工作特性以减小输出信号失真。该电路包括定向RF信号耦合器，其获得指示输出负载不匹配的耦合的反射RF信号。处理耦合的反射RF信号以产生用于RF功率放大器的一个或多个偏置控制信号。在操作中，不匹配条件将导致可测量的耦合反射RF信号和来自RF功率放大器的输出功率的相应降低。最终，输出功率控制机制致力于将RF功率放大器维持在线性工作范围内。

7. 发明申请

US20150125873A1 METHOD AND DEVICE FOR DETECTING AN ANALYTE 审中-公开
标题翻译：用于检测分析仪的方法和装置
公开(公告)号：US20150125873A1
公开(公告)日：2015-05-07
申请号：US14241534
申请日：2012-09-03
申请人： David Newman , Raphael Matelon
发明人： David Newman , Raphael Matelon
IPC分类号： G01N33/543
CPC分类号： G01N33/54326 , B22F2999/00 , G01N21/1717 , G01N21/21 , G01N27/745 , G01N2021/1727 , G01N2021/218 , H01F1/0054 , B22F1/0018 , C22C2202/02
摘要： According to the invention there is provided a method of detecting an analyte including the steps of: i) providing a sample which contains the analyte and magnetic nanoparticles, in which the magnetic nanoparticles include a magnetic body portion which acts as a signalling vector and at least one receptor moiety attached to the body portion for binding to the analyte; ii) applying a magnetic field across at least a portion of the sample to orient the magnetic nanoparticles with respect to the applied magnetic field; iii) introducing electromagnetic radiation into the sample; iv) detecting a physical property which varies in dependence on the orientation of the magnetic nanoparticles with respect to the applied magnetic field, wherein the physical property is associated with the interaction of the electromagnetic radiation with the magnetic body portion which thereby acts as a signalling vector; and v) correlating the detected physical property with the presence of the analyte.
摘要翻译：根据本发明，提供了一种检测分析物的方法，包括以下步骤：i）提供含有分析物和磁性纳米颗粒的样品，其中磁性纳米颗粒包括充当信号载体的磁性体部分，并且至少一个受体部分连接到身体部分以结合分析物; ii）施加穿过所述样品的至少一部分的磁场以相对于所施加的磁场定向所述磁性纳米颗粒; iii）将电磁辐射引入样品; iv）检测根据磁性纳米颗粒相对于所施加的磁场的取向而变化的物理性质，其中物理性质与电磁辐射与磁性体部分的相互作用相关联，从而充当信号载体 ; 和v）将检测到的物理性质与分析物的存在相关联。

8. 发明授权

US08932602B2 Pharmaceutical products from fungal strains 有权
标题翻译：来自真菌菌株的药品
公开(公告)号：US08932602B2
公开(公告)日：2015-01-13
申请号：US13816128
申请日：2011-08-11
申请人： Suresh M. Menon , Samantha S. Orchard , Jessica Badger , Sara Guidi , David Newman , Jagadish C. Sircar , Kashinatham Alisala
发明人： Suresh M. Menon , Samantha S. Orchard , Jessica Badger , Sara Guidi , David Newman , Jagadish C. Sircar , Kashinatham Alisala
IPC分类号： A01N65/00 , A61K36/06 , A61K36/09 , C12P1/02
CPC分类号： C12P1/02 , A01N63/04 , A61K36/062 , C12R1/80
摘要： Disclosed herein are compositions comprising an isolated cellulose degrading fungus and pharmaceutical substances produced by the fungus.
摘要翻译：本文公开了包含分离的纤维素降解真菌和由真菌产生的药物物质的组合物。

9. 发明授权

US08494460B2 System and method for a dual-path transmitter 有权
标题翻译：双路发射机的系统和方法
公开(公告)号：US08494460B2
公开(公告)日：2013-07-23
申请号：US13207746
申请日：2011-08-11
申请人： Omid Oliaei , Mark Alan Kirschenmann , David Newman
发明人： Omid Oliaei , Mark Alan Kirschenmann , David Newman
IPC分类号： H04B1/04
CPC分类号： H04B1/0475 , H04L25/0266 , H04L25/0272 , H04L25/0278 , H04L27/0008 , H04L27/206
摘要： In accordance with some embodiments of the present disclosure, a transmitting path comprises a digital to analog converter (DAC) configured to receive digital data signals and convert the digital data signals into analog data signals. The transmitting path further comprises a first transmission protocol path and a second transmission protocol path configured to receive a first data signal and second data signal, respectively, from the DAC. The first data signal is associated with a first transmission protocol and the second data signal is associated with the second transmission protocol. The transmitting path additionally comprises a mixer coupled to the first and second transmission protocol paths and configured to receive at least one of the first data signal and the second data signal and modulate at least one of the first data signal and the second data signal onto a carrier signal to generate a radio frequency (RF) signal.
摘要翻译：根据本公开的一些实施例，发送路径包括被配置为接收数字数据信号并将数字数据信号转换成模拟数据信号的数模转换器（DAC）。发送路径还包括分别从DAC接收第一数据信号和第二数据信号的第一传输协议路径和第二传输协议路径。第一数据信号与第一传输协议相关联，第二数据信号与第二传输协议相关联。传输路径另外包括耦合到第一和第二传输协议路径并被配置为接收第一数据信号和第二数据信号中的至少一个的混频器，并且将第一数据信号和第二数据信号中的至少一个调制到载波信号以产生射频（RF）信号。

10. 发明申请

US20080075211A1 DEVICE, APPARATUS AND METHOD FOR RECEIVING DATA TRANSMISSIONS HAVING DIFFERENT DATA RATES 有权
标题翻译：用于接收具有不同数据速率的数据传输的装置，装置和方法
公开(公告)号：US20080075211A1
公开(公告)日：2008-03-27
申请号：US11951598
申请日：2007-12-06
申请人： Julio Varela , David Newman , Robert Conrad
发明人： Julio Varela , David Newman , Robert Conrad
IPC分类号： H04B1/00
CPC分类号： H04B7/18513
摘要： A continuously tunable linear phase filter having a ground connection includes a three-terminal Bessel filter having an input terminal for receiving a signal, an output terminal for delivering a signal, a control terminal for receiving a control voltage, and a varactor. Each of the terminals are in signal communication with each other and the varactor is in signal communication with each of the terminals and ground, the varactor being responsive to the control voltage at the control terminal. The capacitance of the varactor is continuously adjustable in response to a change in the control voltage at the control terminal, thereby enabling continuous tuning of the continuously tunable linear phase filter in response to the control voltage.
摘要翻译：具有接地连接的连续可调线性相位滤波器包括具有用于接收信号的输入端子，用于传送信号的输出端子，用于接收控制电压的控制端子和变容二极管的三端子贝塞尔滤波器。每个端子彼此信号通信，并且变容二极管与每个端子和接地信号通信，变容二极管响应于控制端子处的控制电压。变容二极管的电容响应于控制端子处的控制电压的变化而连续可调，从而能够响应于控制电压连续调谐连续可调线性相位滤波器。

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