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1. 发明授权

US08988173B2 Differential negative impedance converters and inverters with variable or tunable conversion ratios 有权
标题翻译：差分负阻抗变换器和具有可变或可调谐转换比的逆变器
公开(公告)号：US08988173B2
公开(公告)日：2015-03-24
申请号：US13441730
申请日：2012-04-06
申请人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
发明人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
IPC分类号： H03H11/10 , H03H11/48
CPC分类号： H03H11/10 , H03F1/56 , H03F2200/369 , H03H11/44 , H03H11/48 , H04B1/0458 , H04B1/18
摘要： A differential circuit topology that produces a tunable floating negative inductance, negative capacitance, negative resistance/conductance, or a combination of the three. These circuits are commonly referred to as “non-Foster circuits.” The disclosed embodiments of the circuits comprises two differential pairs of transistors that are cross-coupled, a load immittance, multiple current sources, two Common-Mode FeedBack (CMFB) networks, at least one tunable (variable) resistance, and two terminals across which the desired immittance is present. The disclosed embodiments of the circuits may be configured as either a Negative Impedance Inverter (NII) or a Negative Impedance Converter (NIC) and as either Open-Circuit-Stable (OCS) and Short-Circuit-Stable (SCS).
摘要翻译：差分电路拓扑产生可调浮动负电感，负电容，负电阻/电导或三者的组合。这些电路通常被称为“非福斯特电路”。所公开的电路实施例包括交叉耦合的两个差分对晶体管，负载导纳，多个电流源，两个共模反馈（CMFB）网络，至少一个可调谐（可变）电阻，以及两个端子，跨过其中存在所需的导纳。所公开的电路实施例可以被配置为负阻抗逆变器（NII）或负阻抗转换器（NIC）以及作为开路稳定（OCS）和短路稳定（SCS）。

2. 发明授权

US09407239B2 Wide bandwidth automatic tuning circuit 有权
标题翻译：宽带宽自动调谐电路
公开(公告)号：US09407239B2
公开(公告)日：2016-08-02
申请号：US13472396
申请日：2012-05-15
申请人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
发明人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
IPC分类号： H03H7/40 , H03H11/30
CPC分类号： H03H11/30 , H03H7/40
摘要： An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.
摘要翻译：一种用于将天线与无线电接收机相匹配的自动调谐电路。自动调谐电路包括用于耦合接收器和天线的可调谐非福斯特电路; 以及感测和反馈电路，用于感测可调谐非福斯特电路和天线的组合电容，并用于调谐可调谐非福斯特电路，以自动最小化可调谐非福斯特电路和天线的组合电容。

3. 发明申请

US20120256709A1 Differential negative impedance converters and inverters with variable or tunable conversion ratios 有权
标题翻译：差分负阻抗变换器和具有可变或可调谐转换比的逆变器
公开(公告)号：US20120256709A1
公开(公告)日：2012-10-11
申请号：US13441730
申请日：2012-04-06
申请人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
发明人： Donald A. Hitko , Carson R. White , Michael W. Yung , David S. Matthews , Susan L. Morton , Jason W. May , Joseph S. Colburn
IPC分类号： H03H11/44
CPC分类号： H03H11/10 , H03F1/56 , H03F2200/369 , H03H11/44 , H03H11/48 , H04B1/0458 , H04B1/18
摘要： A differential circuit topology that produces a tunable floating negative inductance, negative capacitance, negative resistance/conductance, or a combination of the three. These circuits are commonly referred to as “non-Foster circuits.” The disclosed embodiments of the circuits comprises two differential pairs of transistors that are cross-coupled, a load immittance, multiple current sources, two Common-Mode FeedBack (CMFB) networks, at least one tunable (variable) resistance, and two terminals across which the desired immittance is present. The disclosed embodiments of the circuits may be configured as either a Negative Impedance Inverter (NII) or a Negative Impedance Converter (NIC) and as either Open-Circuit-Stable (OCS) and Short-Circuit-Stable (SCS).
摘要翻译：差分电路拓扑产生可调浮动负电感，负电容，负电阻/电导或三者的组合。这些电路通常被称为非福斯特电路。所公开的电路实施例包括交叉耦合的两个差分对晶体管，负载导纳，多个电流源，两个共模反馈（CMFB）网络，至少一个可调谐（可变）电阻和两个终端存在所需的导纳。所公开的电路实施例可以被配置为负阻抗逆变器（NII）或负阻抗转换器（NIC）以及作为开路稳定（OCS）和短路稳定（SCS）。

4. 发明申请

US20130009722A1 WIDE BANDWIDTH AUTOMATIC TUNING CIRCUIT 有权
公开(公告)号：US20130009722A1
公开(公告)日：2013-01-10
申请号：US13472396
申请日：2012-05-15
申请人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
发明人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
IPC分类号： H03H7/40 , H01Q1/50
CPC分类号： H03H11/30 , H03H7/40
摘要： An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.

5. 发明申请

US20130009720A1 WIDE BANDWIDTH AUTOMATIC TUNING CIRCUIT 审中-公开
标题翻译：宽带自动调谐电路
公开(公告)号：US20130009720A1
公开(公告)日：2013-01-10
申请号：US13177479
申请日：2011-07-06
申请人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
发明人： Carson R. White , Joseph S. Colburn , Michael W. Yung , Donald A. Hitko
IPC分类号： H03H7/40 , H03H7/38
CPC分类号： H03H7/40
摘要： An automatic tuning circuit for matching an antenna to a radio receiver. The automatic tuning circuit includes a tunable non-Foster circuit for coupling the receiver and the antenna; and sensing and feedback circuits for sensing the combined capacitance of the tunable non-Foster circuit and the antenna and for tuning the tunable non-Foster circuit to automatically minimize the combined capacitance of the tunable non-Foster circuit and the antenna.
摘要翻译：一种用于将天线与无线电接收机相匹配的自动调谐电路。自动调谐电路包括用于耦合接收器和天线的可调谐非福斯特电路; 以及感测和反馈电路，用于感测可调谐非福斯特电路和天线的组合电容，并用于调谐可调谐非福斯特电路，以自动最小化可调谐非福斯特电路和天线的组合电容。

6. 发明授权

US08976077B2 Widebrand adaptable artificial impedance surface 有权
标题翻译：宽带可调阻抗表面
公开(公告)号：US08976077B2
公开(公告)日：2015-03-10
申请号：US13441659
申请日：2012-04-06
申请人： Joseph S. Colburn , Carson R. White , Daniel J. Gregoire
发明人： Joseph S. Colburn , Carson R. White , Daniel J. Gregoire
IPC分类号： H01Q15/02 , H01Q15/14 , H05K1/16 , H01Q15/00
CPC分类号： H01Q15/14 , H01Q15/002 , H01Q15/0066 , H01Q15/008 , H01Q15/141 , H01Q15/142 , H01Q15/148 , H05K1/165 , H05K2203/162 , Y10T29/49016
摘要： A tunable impedance surface, the tunable surface including a plurality of elements disposed in a two dimensional array; and an arrangement of variable negative reactance circuits for controllably varying negative reactance between at least selected ones of adjacent elements in the aforementioned two dimensional array.
摘要翻译：可调谐阻抗表面，可调谐表面包括以二维阵列设置的多个元件; 以及用于可控地改变上述二维阵列中的至少选定的相邻元件之间的负电抗的可变负电抗电路的布置。

7. 发明申请

US20120256811A1 Widebrand Adaptable Artificial Impedance Surface 有权
标题翻译：宽带适应人造阻抗表面
公开(公告)号：US20120256811A1
公开(公告)日：2012-10-11
申请号：US13441659
申请日：2012-04-06
申请人： Joseph S. Colburn , Carson R. White , Daniel J. Gregoire
发明人： Joseph S. Colburn , Carson R. White , Daniel J. Gregoire
IPC分类号： H01Q1/00
CPC分类号： H01Q15/14 , H01Q15/002 , H01Q15/0066 , H01Q15/008 , H01Q15/141 , H01Q15/142 , H01Q15/148 , H05K1/165 , H05K2203/162 , Y10T29/49016
摘要： A tunable impedance surface, the tunable surface including a plurality of elements disposed in a two dimensional array; and an arrangement of variable negative reactance circuits for controllably varying negative reactance between at least selected ones of adjacent elements in the aforementioned two dimensional array.
摘要翻译：可调谐阻抗表面，可调谐表面包括以二维阵列设置的多个元件; 以及用于可控地改变上述二维阵列中的至少选定的相邻元件之间的负电抗的可变负电抗电路的布置。

8. 发明授权

US07864099B2 Low cost short range radar 有权
标题翻译：低成本短程雷达
公开(公告)号：US07864099B2
公开(公告)日：2011-01-04
申请号：US12176787
申请日：2008-07-21
申请人： Joseph S. Colburn , Hui-Pin Hsu , Osman D. Altan
发明人： Joseph S. Colburn , Hui-Pin Hsu , Osman D. Altan
IPC分类号： G01S13/00
CPC分类号： H01Q25/02
摘要： A low cost radar system that employs monopulse beamforming to detect objects in the road-way both in elevation and azimuth. In one non-limiting embodiment, a beamforming receiver architecture includes a first beamforming device and a plurality of antennas coupled to the first beamforming device, and a second beamforming device and a plurality of antennas coupled to the second beamforming device. The first and second beamforming devices are oriented 90° relative to each other so that the receive beams provided by the first beamforming device detect objects in azimuth and the receive beams provided by the second beamforming device detect objects in elevation. A first switch is provided to selectively couple the sum pattern signal from the first and second beamforming devices to one output line, and a second switch is provided to selectively couple the difference pattern signals from the first and second beamforming devices to another output line.
摘要翻译：一种低成本的雷达系统，采用单脉冲波束形成来检测高程和方位角路面物体。在一个非限制性实施例中，波束形成接收机架构包括第一波束成形设备和耦合到第一波束成形设备的多个天线以及耦合到第二波束成形设备的第二波束成形设备和多个天线。第一和第二波束形成装置相对于彼此定向成90°，使得由第一波束形成装置提供的接收波束检测方位角中的物体，并且由第二波束形成装置提供的接收波束检测高程中的物体。提供第一开关以选择性地将来自第一和第二波束形成装置的和图案信号耦合到一个输出线，并且提供第二开关以选择性地将来自第一和第二波束成形装置的差分图案信号耦合到另一个输出线。

9. 发明授权

US08660511B2 Antenna diversity scheme employing band pass sampling and fast semiconductor switching 有权
标题翻译：采用带通采样和快速半导体开关的天线分集方案
公开(公告)号：US08660511B2
公开(公告)日：2014-02-25
申请号：US13308597
申请日：2011-12-01
申请人： Timothy J. Talty , James H. Schaffner , Hyok Jae Song , Joseph S. Colburn , Duane S. Carper
发明人： Timothy J. Talty , James H. Schaffner , Hyok Jae Song , Joseph S. Colburn , Duane S. Carper
IPC分类号： H04B1/06 , H04B7/00 , H05K11/02
CPC分类号： H04B7/0604 , H01Q1/1271 , H01Q3/24
摘要： A vehicle or other host station includes first and second antennas, a fast semiconductor switch, a switching controller, and an RF receiver. The controller toggles the switch at a calibrated switching rate to selectively and alternately connect the first antenna to one of the RF receiver and a load having a calibrated impedance value. The first antenna may be a parasitic element in any embodiment using the load. The semiconductor switch may be a CMOS device or a Gallium Arsenide semiconductor switch. A switching control method for use in a vehicle or other host station having the first antenna, the second antenna, and the RF receiver includes transmitting a switching signal from the controller to the switch, and toggling the switch at a calibrated switching rate in response to the switching signal to selectively and alternately connect the first antenna to one of the RF receiver and the load.
摘要翻译：车辆或其他主机站包括第一和第二天线，快速半导体开关，开关控制器和RF接收器。控制器以校准的开关速率切换开关，以选择性地并且交替地将第一天线连接到RF接收器之一和具有校准阻抗值的负载。在使用负载的任何实施例中，第一天线可以是寄生元件。半导体开关可以是CMOS器件或砷化镓半导体开关。一种在具有第一天线，第二天线和RF接收机的车辆或其他主机站中使用的切换控制方法包括：将来自控制器的切换信号发送到交换机，并且以校准的切换速率响应于所述切换信号选择性地并且交替地将所述第一天线连接到所述RF接收器和所述负载之一。

10. 发明申请

US20120171977A1 ANTENNA DIVERSITY SCHEME EMPLOYING BAND PASS SAMPLING AND FAST SEMICONDUCTOR SWITCHING 有权
标题翻译：天线多样性方案采用条带采样和快速半导体开关
公开(公告)号：US20120171977A1
公开(公告)日：2012-07-05
申请号：US13308597
申请日：2011-12-01
申请人： Timothy J. Talty , James H. Schaffner , Hyok Jae Song , Joseph S. Colburn , Duane S. Carper
发明人： Timothy J. Talty , James H. Schaffner , Hyok Jae Song , Joseph S. Colburn , Duane S. Carper
IPC分类号： H04B1/18 , H04B1/16 , H04B1/06
CPC分类号： H04B7/0604 , H01Q1/1271 , H01Q3/24
摘要： A vehicle or other host station includes first and second antennas, a fast semiconductor switch, a switching controller, and an RF receiver. The controller toggles the switch at a calibrated switching rate to selectively and alternately connect the first antenna to one of the RF receiver and a load having a calibrated impedance value. The first antenna may be a parasitic element in any embodiment using the load. The semiconductor switch may be a CMOS device or a Gallium Arsenide semiconductor switch. A switching control method for use in a vehicle or other host station having the first antenna, the second antenna, and the RF receiver includes transmitting a switching signal from the controller to the switch, and toggling the switch at a calibrated switching rate in response to the switching signal to selectively and alternately connect the first antenna to one of the RF receiver and the load.
摘要翻译：车辆或其他主机站包括第一和第二天线，快速半导体开关，开关控制器和RF接收器。控制器以校准的开关速率切换开关，以选择性地并且交替地将第一天线连接到RF接收器之一和具有校准阻抗值的负载。在使用负载的任何实施例中，第一天线可以是寄生元件。半导体开关可以是CMOS器件或砷化镓半导体开关。一种在具有第一天线，第二天线和RF接收机的车辆或其他主机站中使用的切换控制方法包括：将来自控制器的切换信号发送到交换机，并且以校准的切换速率响应于所述切换信号选择性地并且交替地将所述第一天线连接到所述RF接收器和所述负载之一。

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