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1. 发明授权

US09203461B2 Methods, systems, and non-transitory computer readable media for wideband frequency and bandwidth tunable filtering 有权
标题翻译：用于宽带频率和带宽可调滤波的方法，系统和非暂时性计算机可读介质
公开(公告)号：US09203461B2
公开(公告)日：2015-12-01
申请号：US14719302
申请日：2015-05-21
申请人： Physical Devices, LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III , Jonathan Ryan Wilkerson
IPC分类号： H04B1/10 , H04B1/44
CPC分类号： H04B1/1018 , H04B1/1081 , H04B1/44 , H04B1/525 , H04B7/0894
摘要： Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response.
摘要翻译：公开了用于宽带频率和带宽可调滤波的方法，系统和计算机可读介质。根据一个方面，本文所述的主题包括宽带频率和带宽可调滤波器，其将滤波器输入信号分成第一和第二输入信号，修改第一输入信号以产生第一输出信号，修改第二输入信号以产生具有中频响应的第二输出信号，并且组合第一和第二输出信号同时调节它们的相对相位和/或幅度以产生具有目标频率响应的滤波器输出信号。调整包括将第二输入信号分成第三和第四输入信号，其被修改然后被组合以产生具有中频响应的第二输出信号。

2. 发明授权

US09042857B2 Methods, systems, and non-transitory computer readable media for wideband frequency and bandwidth tunable filtering 有权
公开(公告)号：US09042857B2
公开(公告)日：2015-05-26
申请号：US13745729
申请日：2013-01-18
申请人： Physical Devices, LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III , Jonathan Ryan Wilkerson
IPC分类号： H04B1/10 , H04B1/44 , H04B7/08
CPC分类号： H04B1/1018 , H04B1/1081 , H04B1/44 , H04B1/525 , H04B7/0894
摘要： Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response.

3. 发明申请

US20140073266A9 METHODS, SYSTEMS, AND NON-TRANSITORY COMPUTER READABLE MEDIA FOR WIDEBAND FREQUENCY AND BANDWIDTH TUNABLE FILTERING 有权
标题翻译：方法，系统和非终端计算机可读介质，用于宽带频率和带宽滤波滤波
公开(公告)号：US20140073266A9
公开(公告)日：2014-03-13
申请号：US13745729
申请日：2013-01-18
申请人： PHYSICAL DEVICES, LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III , Jonathan Ryan Wilkerson
IPC分类号： H04B1/44 , H04B1/10
CPC分类号： H04B1/1018 , H04B1/1081 , H04B1/44 , H04B1/525 , H04B7/0894
摘要： Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response.
摘要翻译：公开了用于宽带频率和带宽可调滤波的方法，系统和计算机可读介质。根据一个方面，本文所述的主题包括宽带频率和带宽可调滤波器，其将滤波器输入信号分成第一和第二输入信号，修改第一输入信号以产生第一输出信号，修改第二输入信号以产生具有中频响应的第二输出信号，并且组合第一和第二输出信号同时调节它们的相对相位和/或幅度以产生具有目标频率响应的滤波器输出信号。调整包括将第二输入信号分成第三和第四输入信号，其被修改然后被组合以产生具有中频响应的第二输出信号。

4. 发明授权

US09800278B2 Tunable filters, cancellers, and duplexers based on passive mixers 有权
公开(公告)号：US09800278B2
公开(公告)日：2017-10-24
申请号：US15257354
申请日：2016-09-06
申请人： North Carolina State University
发明人： Brian Allan Floyd , Charley Theodore Wilson, III , Jeffrey Franklin Bonner-Stewart , Frederick Vosburgh
IPC分类号： H04B1/44 , H04B1/10 , H04L7/00
CPC分类号： H04B1/1081 , H03D7/165 , H03D2200/0074 , H03H7/20 , H03H7/463 , H04B1/1036 , H04B1/18 , H04L7/0016
摘要： Tunable filters, cancellers, and duplexers based on passive mixers. A tunable delay cell includes passive mixers electrically coupled together for receiving an input signal and outputting a delayed signal, each passive mixer comprising a plurality of mixer switches. The tunable delay includes a control circuit for providing, to each passive mixer, a respective plurality of local oscillator (LO) signals, one to each mixer switch of each passive mixer. The control circuit is configured to vary the LO signals to cause a target frequency band of the input signal to be delayed by a target delay time in propagating through the passive mixers.

5. 发明授权

US09243915B2 Devices and methods for passive navigation 有权
标题翻译：被动导航的设备和方法
公开(公告)号：US09243915B2
公开(公告)日：2016-01-26
申请号：US14515761
申请日：2014-10-16
申请人： Physical Devices, LLC
发明人： Walter C. Hernandez , Frederick Vosburgh
IPC分类号： G01C21/16
CPC分类号： G01C21/16
摘要： Devices and methods are disclosed for determining position and controlling navigation by sensing movement through the Earth's magnetic field. Change in position is determined by integrating velocity which has been normalized for spatial and temporal field variation. Position is registered with respect to starting point and/or subsequently detected environmental feature. Signals are provided to actuator for guidance, navigation and control.
摘要翻译：公开了用于通过感测通过地球磁场的运动来确定位置和控制导航的装置和方法。位置变化是通过已经针对空间和时间场变化进行了归一化的积分速度来确定的。相对于起始点和/或随后检测的环境特征登记位置。信号被提供给执行器用于指导，导航和控制。

6. 发明申请

US20130225099A1 METHODS, SYSTEMS, AND NON-TRANSITORY COMPUTER READABLE MEDIA FOR WIDEBAND FREQUENCY AND BANDWIDTH TUNABLE FILTERING 有权
公开(公告)号：US20130225099A1
公开(公告)日：2013-08-29
申请号：US13745729
申请日：2013-01-18
申请人： PHYSICAL DEVICES, LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III , Jonathan Ryan Wilkerson
IPC分类号： H04B1/44 , H04B1/10
CPC分类号： H04B1/1018 , H04B1/1081 , H04B1/44 , H04B1/525 , H04B7/0894
摘要： Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response.

7. 发明授权

US09519062B2 Methods, systems, and computer readable media for mitigation of in-band interference of global positioning system (GPS) signals 有权
标题翻译：用于减轻全球定位系统（GPS）信号的带内干扰的方法，系统和计算机可读介质
公开(公告)号：US09519062B2
公开(公告)日：2016-12-13
申请号：US13781226
申请日：2013-02-28
申请人： Physical Devices LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III
IPC分类号： G01S19/21 , H01Q21/28 , H01Q1/32 , H01Q1/52 , H01Q11/10
CPC分类号： G01S19/215 , H01Q1/32 , H01Q1/52 , H01Q11/10 , H01Q21/28
摘要： Methods, systems, and computer readable media for mitigation of interference of GPS signals are disclosed providing selective mitigation of in-band interference implementing deterministic phase control. In one embodiment, a system for mitigating interference of GPS signals includes a pair of antennas, each receiving GPS signals that include both a desired signal component and a jammer signal component. The signal from one antenna is phase-shifted as needed to make it anti-phase with the signal from the other antenna, so that when the two signals are combined, the jammer signal components substantially cancel each other, leaving the desired signal components. Determining the phase shift required involves deterministically calculating the phase shift based on the amplitudes of the two input signals and the amplitude of the combined signal instead of the iterative techniques used in conventional systems.
摘要翻译：公开了用于减轻GPS信号的干扰的方法，系统和计算机可读介质，其提供了实现确定性相位控制的带内干扰的选择性缓解。在一个实施例中，用于减轻GPS信号干扰的系统包括一对天线，每个天线接收包括期望信号分量和干扰信号分量的GPS信号。来自一个天线的信号根据需要进行相移以使其与来自另一个天线的信号反相，使得当两个信号组合时，干扰信号分量基本上彼此抵消，留下期望的信号分量。确定所需的相移包括基于两个输入信号的幅度和组合信号的振幅来确定性地计算相移，而不是常规系统中使用的迭代技术。

8. 发明授权

US09450625B2 Methods, systems, and non-transitory computer readable media for wideband frequency and bandwidth tunable filtering 有权
公开(公告)号：US09450625B2
公开(公告)日：2016-09-20
申请号：US14927374
申请日：2015-10-29
申请人： Physical Devices, LLC
发明人： Frederick Vosburgh , Charley Theodore Wilson, III , Jonathan Ryan Wilkerson
IPC分类号： H04B1/10 , H04B1/44 , H04B7/08 , H04B1/525
CPC分类号： H04B1/1018 , H04B1/1081 , H04B1/44 , H04B1/525 , H04B7/0894
摘要： Methods, systems, and computer readable media for wideband frequency and bandwidth tunable filtering are disclosed. According to one aspect, the subject matter described herein includes a wideband frequency and bandwidth tunable filter that splits a filter input signal into first and second input signals, modifies the first input signal to produce a first output signal, modifies the second input signal to produce a second output signal having an intermediate frequency response, and combines the first and second output signals while adjusting their relative phases and/or amplitudes to produce a filter output signal with the target frequency response. Adjustment includes splitting the second input signal into third and fourth input signals, which are modified and then combined to produce the second output signal having the intermediate frequency response.

9. 发明授权

US09350401B2 Tunable filter devices and methods 有权
标题翻译：可调滤波器装置及方法
公开(公告)号：US09350401B2
公开(公告)日：2016-05-24
申请号：US13820064
申请日：2011-08-26
申请人： Jonathan Ryan Wilkerson
发明人： Jonathan Ryan Wilkerson
IPC分类号： H04B1/00 , H04B1/16 , H04B1/12 , H03H7/46 , H03H11/34
CPC分类号： H03H11/0405 , H03H7/46 , H03H11/34 , H03H2210/012 , H03H2250/00 , H04B1/12 , H04B1/123
摘要： Analog interference filter devices and methods for isolation of desirable portions of a radio frequency signal. Signal compensation is used to provide desirable center frequency, passband width, ripple, rolloff, stopband and distortion performance. The filter is implemented with passive and/or active components.
摘要翻译：模拟干扰滤波器装置和用于隔离射频信号的期望部分的方法。信号补偿用于提供所需的中心频率，通带宽度，纹波，滚降，阻带和失真性能。滤波器采用无源和/或有源组件实现。

10. 发明申请

US20140235190A1 METHODS AND DEVICES FOR REDUCING RADIO FREQUENCY INTERFERENCE 有权
标题翻译：用于减少无线电频率干扰的方法和装置
公开(公告)号：US20140235190A1
公开(公告)日：2014-08-21
申请号：US14194924
申请日：2014-03-03
申请人： Physical Devices, LLC
发明人： Jonathan Ryan Wilkerson , Frederick Vosburgh
IPC分类号： H04B1/10
CPC分类号： H04B1/10 , H04B1/109 , H04B7/0894
摘要： Devices and methods for selectively reducing interference in wireless signals through field nulling and signal cancelling by signal agnostic, intrinsically stable, analytic means.
摘要翻译：用于通过信号无声，本质上稳定的分析手段通过场归零和信号消除来选择性地减少无线信号中的干扰的装置和方法。

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