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1. 发明授权

US06618010B2 Passive tracking system and method 失效
公开(公告)号：US06618010B2
公开(公告)日：2003-09-09
申请号：US09994989
申请日：2001-11-14
申请人： G. Dickey Arndt , Phong H. Ngo , Henry A. Chen , Chau T. Phan , Brian A. Bourgeois , John Dusl , Brent W. Hill
发明人： G. Dickey Arndt , Phong H. Ngo , Henry A. Chen , Chau T. Phan , Brian A. Bourgeois , John Dusl , Brent W. Hill
IPC分类号： G01S302
CPC分类号： G01S5/0205 , G01S3/46 , G01S5/04 , H04B1/7085
摘要： System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter. In a preferred embodiment, a phase difference between the transmitter and receiver is extracted utilizing a noncoherent demodulator in the receiver. The receiver includes an antenna array with three antenna elements, which preferably are patch antenna elements spaced apart by one-half wavelength. Three receiver channels are preferably utilized for simultaneously processing the received signal from each of the three antenna elements. Multipath transmission paths for each of the three receiver channels are indexed so that comparisons of the same multipath component are made for each of the three receiver channels. The phase difference for each received signal is determined by comparing only the magnitudes of received and stored modulation signals to determine a winning modulation symbol.

2. 发明授权

US06559645B2 Detector apparatus and method 失效
标题翻译：检测仪器及方法
公开(公告)号：US06559645B2
公开(公告)日：2003-05-06
申请号：US10028962
申请日：2001-10-30
申请人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , Kent A. Byerly , John Dusl
发明人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , Kent A. Byerly , John Dusl
IPC分类号： G01V308
CPC分类号： G01V3/104
摘要： Transceiver and methods are included that are especially suitable for detecting metallic materials, such as metallic mines, within an environment. The transceiver includes a digital waveform generator used to transmit a signal into the environment and a receiver that produces a digital received signal. A tracking module preferably compares an in-phase and quadrature transmitted signal with an in-phase and quadrature received signal to produce a spectral transfer function of the magnetic transceiver over a selected range of frequencies. The transceiver initially preferably creates a reference transfer function which is then stored in a memory. Subsequently measured transfer functions will vary depending on the presence of metal in the environment which was not in the environment when the reference transfer function was determined. The system may be utilized in the presence of other antennas, metal, and electronics which may comprise a plastic mine detector for detecting plastic mines. Despite the additional antennas and other metallic materials that may be in the environment due to the plastic mine detector, the magnetic transceiver remains highly sensitive to metallic material which may be located in various portions of the environment and which may be detected by sweeping the detector over ground that may contain metals or mines.
摘要翻译：包括收发器和方法，其特别适用于在环境中检测诸如金属矿的金属材料。收发器包括用于将信号发送到环境中的数字波形发生器和产生数字接收信号的接收器。跟踪模块优选地将同相和正交发射信号与同相和正交接收信号进行比较，以在选定的频率范围内产生磁收发器的频谱传递函数。收发器最初优选地创建参考传递函数，然后存储在存储器中。随后测量的传递函数将根据在确定参考传递函数时不在环境中的金属的存在而变化。该系统可以在其他天线，金属和电子设备的存在下使用，其可以包括用于检测塑料矿的塑料矿检测器。尽管由于采用了塑料矿检测器，其他天线和其他金属材料可能在环境中，磁性收发器仍然对金属材料非常敏感，金属材料可能位于环境的各个部分，并且可以通过扫描检测器来检测可能含有金属或矿山的地面。

3. 发明授权

US08116350B1 Ultrawideband asynchronous tracking system and method 有权
标题翻译：超宽带异步跟踪系统及方法
公开(公告)号：US08116350B1
公开(公告)日：2012-02-14
申请号：US12353755
申请日：2009-01-14
申请人： G. Dickey Arndt , Phong H. Ngo , Chau T. Phan , Julia A. Gross , Jianjun Ni , John Dusl
发明人： G. Dickey Arndt , Phong H. Ngo , Chau T. Phan , Julia A. Gross , Jianjun Ni , John Dusl
IPC分类号： H04B1/00
CPC分类号： G01S5/04 , G01S5/12
摘要： A passive tracking system is provided with a plurality of ultrawideband (UWB) receivers that is asynchronous with respect to a UWB transmitter. A geometry of the tracking system may utilize a plurality of clusters with each cluster comprising a plurality of antennas. Time Difference of Arrival (TDOA) may be determined for the antennas in each cluster and utilized to determine Angle of Arrival (AOA) based on a far field assumption regarding the geometry. Parallel software communication sockets may be established with each of the plurality of UWB receivers. Transfer of waveform data may be processed by alternately receiving packets of waveform data from each UWB receiver. Cross Correlation Peak Detection (CCPD) is utilized to estimate TDOA information to reduce errors in a noisy, multipath environment.
摘要翻译：无源跟踪系统提供有相对于UWB发射机是异步的多个超宽带（UWB）接收机。跟踪系统的几何可以利用多个群集，每个群集包括多个天线。可以根据关于几何的远场假设，确定每个群集中的天线的时差（TDOA），并用于确定到达角（AOA）。可以与多个UWB接收机中的每一个建立并行软件通信插座。可以通过交替地接收来自每个UWB接收器的波形数据的分组来处理波形数据的传送。交叉相关峰值检测（CCPD）用于估计TDOA信息以减少噪声多径环境中的误差。

4. 发明授权

US06944504B1 Microwave medical treatment apparatus and method 失效
标题翻译：微波治疗仪器及方法
公开(公告)号：US06944504B1
公开(公告)日：2005-09-13
申请号：US10302323
申请日：2002-11-19
申请人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , W. Raffoul George
发明人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , W. Raffoul George
IPC分类号： A61F2/00
CPC分类号： A61B18/18 , A61B18/1815 , A61N5/045
摘要： Methods, simulations, and apparatus are provided that may be utilized for medical treatments which are especially suitable for treatment of benign prostatic hyperplasia (BPH). In a preferred embodiment, a plurality of separate microwave antennas are utilized to heat prostatic tissue to promote necrosing of the prostatic tissue that relieves the pressure of the prostatic tissue against the urethra as the body reabsorbs the necrosed or dead tissue. By utilizing constructive and destructive interference of the microwave transmission, the energy can be deposited on the tissues to be necrosed while protecting other tissues such as the urethra. Saline injections to alter the conductivity of the tissues may also be used to further focus the energy deposits. A computer simulation is provided that can be used to predict the resulting temperature profile produced in the prostatic tissue. By changing the various control features of one or more catheters and the methods of applying microwave energy, a temperature profile can be predicted and produced that is similar to the temperature profile desired for the particular patient.
摘要翻译：提供了可用于特别适用于治疗良性前列腺增生（BPH）的医学治疗的方法，模拟和装置。在优选实施例中，利用多个单独的微波天线来加热前列腺组织以促进前列腺组织的坏死，当身体重新吸收坏死或死亡的组织时，前列腺组织抵抗尿道减轻前列腺组织的压力。通过利用微波传播的结构性和破坏性干扰，可以将能量沉积在待坏死的组织上，同时保护其他组织如尿道。用于改变组织的电导率的盐水注射也可用于进一步聚焦能量沉积物。提供了可用于预测在前列腺组织中产生的最终温度曲线的计算机模拟。通过改变一个或多个导管的各种控制特征以及施加微波能量的方法，可以预测和产生类似于特定患者所期望的温度曲线的温度分布。

5. 发明授权

US06501414B2 Method for locating a concealed object 失效
标题翻译：用于定位隐藏对象的方法
公开(公告)号：US06501414B2
公开(公告)日：2002-12-31
申请号：US09826402
申请日：2001-04-02
申请人： G. Dickey Arndt , James R. Carl , Kent A. Byerly , Phong H. Ngo , Larry G. Stolarczyk
发明人： G. Dickey Arndt , James R. Carl , Kent A. Byerly , Phong H. Ngo , Larry G. Stolarczyk
IPC分类号： G01S1300
CPC分类号： F41H11/12 , G01S13/0209 , G01S13/885 , G01V3/12
摘要： Apparatus and methods are disclosed for detecting anomalies in microwave penetrable material that may be used for locating plastic mines or pipes underneath the ground. A transmitter is positioned at a plurality of different positions above the ground. A microwave signal is transmitted that is stepped over a plurality of frequencies. At each position, a plurality of reflections are received corresponding to each of the plurality of frequencies that were transmitted. A complex target vector may be produced at each position that contains complex values corresponding to magnitude, phase, and time delay for each of the plurality of reflections received at that location. A complex reference data vector may be produced, either based on predetermined values or based on data from the received plurality of reflections. A comparison is made between the complex target vector and the complex reference data vector to produce a channel vector. In one embodiment, an operator may be applied to the channel vector such as a complex filter matrix or to add a complex conjugate. A response signal is produced and anomalies are detected by variations in the response signal with respect to the plurality of positions.
摘要翻译：公开了用于检测可用于定位地下塑料矿或管道的微波穿透材料中的异常的装置和方法。发射机位于地面上方的多个不同位置。发送在多个频率上阶梯的微波信号。在每个位置处，对应于所发送的多个频率中的每一个接收多个反射。可以在每个位置处产生复目标矢量，该位置包含对应于在该位置处接收的多个反射中的每个反射的幅度，相位和时间延迟的复数值。可以基于预定值或基于来自接收到的多个反射的数据来产生复参考数据向量。在复目标矢量和复参考数据矢量之间进行比较以产生通道矢量。在一个实施例中，可以将运算符应用于诸如复数滤波器矩阵的信道向量，或者添加复共轭。产生响应信号并且通过响应信号相对于多个位置的变化来检测异常。

6. 发明授权

US08388613B1 Methods and apparatus for microwave tissue welding for wound closure 有权
标题翻译：用于伤口闭合的微波组织焊接方法和装置
公开(公告)号：US08388613B1
公开(公告)日：2013-03-05
申请号：US12757657
申请日：2010-04-09
申请人： G. Dickey Arndt , Phong H. Ngo , Chau T. Phan , Diane L. Byerly , John R. Dusl , Marguerite A. Sognier , James R. Carl
发明人： G. Dickey Arndt , Phong H. Ngo , Chau T. Phan , Diane L. Byerly , John R. Dusl , Marguerite A. Sognier , James R. Carl
IPC分类号： A61B18/14
CPC分类号： A61B18/1815 , A61B2017/00513 , A61B2018/00755 , A61B2018/00785
摘要： Methods and apparatus for joining biological tissue together are provided. In at least one specific embodiment, a method for joining biological tissue together can include applying a biological solder on a wound. A barrier layer can be disposed on the biological solder. An antenna can be located in proximate spatial relationship to the barrier layer. An impedance of the antenna can be matched to an impedance of the wound. Microwaves from a signal generator can be transmitted through the antenna to weld two or more biological tissue pieces of the wound together. A power of the microwaves can be adjusted by a control circuit disposed between the antenna and the signal generator. The heating profile within the tissue may be adjusted and controlled by the placement of metallic microspheres in or around the wound.
摘要翻译：提供了将生物组织连接在一起的方法和装置。在至少一个具体实施方案中，将生物组织连接在一起的方法可以包括将生物焊料施加在伤口上。阻挡层可以设置在生物焊料上。天线可以位于与阻挡层邻近的空间关系中。天线的阻抗可以与伤口的阻抗匹配。来自信号发生器的微波可以通过天线传播，以将伤口的两个或更多个生物组织碎片焊接在一起。可以通过设置在天线和信号发生器之间的控制电路来调节微波的功率。可以通过将金属微球体置于伤口周围或周围来调节和控制组织内的加热曲线。

7. 发明授权

US07410485B1 Directional microwave applicator and methods 有权
标题翻译：定向微波施加器和方法
公开(公告)号：US07410485B1
公开(公告)日：2008-08-12
申请号：US11040613
申请日：2005-01-14
申请人： Patrick W. Fink , Greg Y. Lin , Andrew W. Chu , Justin A. Dobbins , G. Dickey Arndt , Phong H. Ngo
发明人： Patrick W. Fink , Greg Y. Lin , Andrew W. Chu , Justin A. Dobbins , G. Dickey Arndt , Phong H. Ngo
IPC分类号： A61B18/04 , A61N1/06
CPC分类号： A61B18/12 , A61B18/18 , A61B18/1815 , A61B2018/183
摘要： A miniature microwave antenna is disclosed which may be utilized for biomedical applications such as, for example, radiation induced hyperthermia through catheter systems. One feature of the antenna is that it possesses azimuthal directionality despite its small size. This directionality permits targeting of certain tissues while limiting thermal exposure of adjacent tissue. One embodiment has an outer diameter of about 0.095″ (2.4 mm) but the design permits for smaller diameters.
摘要翻译：公开了一种微型微波天线，其可用于生物医学应用，例如通过导管系统的辐射诱导的高热。天线的一个特点是尽管其尺寸小，但具有方位方向性。这种方向性允许靶向某些组织，同时限制相邻组织的热暴露。一个实施例具有约0.095“（2.4mm）的外径，但是设计允许更小的直径。

8. 发明授权

US06995572B2 Sensor and method for detecting a superstrate 失效
公开(公告)号：US06995572B2
公开(公告)日：2006-02-07
申请号：US09803613
申请日：2001-03-05
申请人： G. Dickey Arndt , James R. Carl , Phong H. Ngo , Patrick W. Fink , James D. Siekierski
发明人： G. Dickey Arndt , James R. Carl , Phong H. Ngo , Patrick W. Fink , James D. Siekierski
IPC分类号： G01R27/04 , G01R27/32
CPC分类号： G08B19/02
摘要： Method and apparatus are provided for determining a superstrate on or near a sensor, e.g., for detecting the presence of an ice superstrate on an airplane wing or a road. In one preferred embodiment, multiple measurement cells are disposed along a transmission line. While the present invention is operable with different types of transmission lines, construction details for a presently preferred coplanar waveguide and a microstrip waveguide are disclosed. A computer simulation is provided as part of the invention for predicting results of a simulated superstrate detector system. The measurement cells may be physically partitioned, non-physically partitioned with software or firmware, or include a combination of different types of partitions. In one embodiment, a plurality of transmission lines are utilized wherein each transmission line includes a plurality of measurement cells. The plurality of transmission lines may be multiplexed with the signal from each transmission line being applied to the same phase detector. In one embodiment, an inverse problem method is applied to determine the superstrate dielectric for a transmission line with multiple measurement cells.

9. 发明授权

US06903685B1 Passive tracking system and method 失效
标题翻译：被动跟踪系统和方法
公开(公告)号：US06903685B1
公开(公告)日：2005-06-07
申请号：US10612562
申请日：2003-07-01
申请人： G. Dickey Arndt , Phong H. Ngo , Henry A. Chen , Chau T. Phan , Brian A. Bourgeois , John Dusl , Brent W. Hill
发明人： G. Dickey Arndt , Phong H. Ngo , Henry A. Chen , Chau T. Phan , Brian A. Bourgeois , John Dusl , Brent W. Hill
IPC分类号： G01S3/46 , G01S5/04 , H04B1/7085 , G01S1/08 , H01Q1/00
CPC分类号： G01S5/0205 , G01S3/46 , G01S5/04 , H04B1/7085
摘要： System and methods are disclosed for passively determining the location of a moveable transmitter utilizing a pair of phase shifts at a receiver for extracting a direction vector from a receiver to the transmitter. In a preferred embodiment, a phase difference between the transmitter and receiver is extracted utilizing a noncoherent demodulator in the receiver. The receiver includes antenna array with three antenna elements, which preferably are patch antenna elements aced apart by one-half wavelength. Three receiver channels are preferably utilized for simultaneously processing the received signal from each of the three antenna elements. Multipath transmission paths for each of the three receiver channels are indexed so that comparisons of the same multipath component are made for each of the three receiver channels. The phase difference for each received signal is determined by comparing only the magnitudes of received and stored modulation signals to determine a winning modulation symbol.
摘要翻译：公开了系统和方法，用于被动地确定在接收机处利用一对相移的可移动发射机的位置，以从接收机向发射机提取方向矢量。在优选实施例中，使用接收机中的非相干解调器来提取发射机和接收机之间的相位差。接收机包括具有三个天线元件的天线阵列，其优选地是被二分之一波长隔开的贴片天线元件。三个接收机通道最好用于同时处理来自三个天线元件中的每一个的接收信号。对三个接收机通道中的每一个进行多路传输路径进行索引，以便对三个接收机通道中的每一个进行相同的多路径分量的比较。通过仅比较接收和存储的调制信号的幅度来确定获胜调制符号来确定每个接收信号的相位差。

10. 发明授权

US06650280B2 Measurement system and method 失效
标题翻译：测量系统及方法
公开(公告)号：US06650280B2
公开(公告)日：2003-11-18
申请号：US09953612
申请日：2001-09-14
申请人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , Kent A. Byerly
发明人： G. Dickey Arndt , Phong H. Ngo , James R. Carl , Kent A. Byerly
IPC分类号： G01S1308
CPC分类号： G01S15/584 , G01F23/284 , G01F23/2962 , G01F25/0061 , G01S13/10 , G01S13/862 , G01S15/101
摘要： System and methods are disclosed for fluid measurements which may be utilized to determine mass flow rates such as instantaneous mass flow of a fluid stream. In a preferred embodiment, the present invention may be utilized to compare an input mass flow to an output mass flow of a drilling fluid circulation stream. In one embodiment, a fluid flow rate is determined by utilizing a microwave detector in combination with an acoustic sensor. The acoustic signal is utilized to eliminate 2&pgr; phase ambiguities in a reflected microwave signal. In another embodiment, a fluid flow rate may be determined by detecting a phase shift of an acoustic signal across two different predetermined transmission paths. A fluid density may be determined by detecting a calibrated phase shift of an acoustic signal through the fluid. In another embodiment, a second acoustic signal may be transmitted through the fluid to define a particular 2&pgr; phase range which defines the phase shift. The present invention may comprise multiple transmitters/receivers operating at different frequencies to measure instantaneous fuel levels of cryogenic fuels within containers positioned in zero or near zero gravity environments. In one embodiment, a moveable flexible collar of transmitter/receivers may be utilized to determine inhomogenuities within solid rocket fuel tubes.
摘要翻译：公开了用于流体测量的系统和方法，其可用于确定质量流量，例如流体流的瞬时质量流量。在优选实施例中，本发明可用于将输入质量流与钻井液循环流的输出质量流进行比较。在一个实施例中，通过利用与声学传感器组合的微波检测器来确定流体流速。声信号用于消除反射微波信号中的2pi相位模糊度。在另一个实施例中，可以通过检测两个不同预定传输路径上的声信号的相移来确定流体流速。可以通过检测通过流体的声信号的校准相移来确定流体密度。在另一个实施例中，可以通过流体传输第二声信号以限定限定相移的特定2pi相位范围。本发明可以包括以不同频率操作的多个发射器/接收器，以测量位于零或接近零重力环境的容器内的低温燃料的瞬时燃料含量。在一个实施例中，发射机/接收机的可移动柔性环可用于确定固体火箭燃料管内的不均匀性。

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