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1. 发明授权

US07877073B2 Superheterodyne receiver having at least one downconversion stage empolying a single image reject filter stage and both low-side injection and high-side injection of a local oscillator signal 有权
标题翻译：具有至少一个下变频级的超外差接收器，其具有单个图像抑制滤波器级以及本地振荡器信号的低侧注入和高侧注入
公开(公告)号：US07877073B2
公开(公告)日：2011-01-25
申请号：US11203473
申请日：2005-08-11
申请人： David C. Steed, Jr. , Martin R. Johnson
发明人： David C. Steed, Jr. , Martin R. Johnson
IPC分类号： H04B1/18
CPC分类号： H04B1/28
摘要： A multi-channel superheterodyne receiver employs a low intermediate frequency (IF) and both high-side injection and low-side injection of a selected local oscillator (LO) signal into the mixer in order to position image frequencies outside the passband of a single image reject filter. Any channel that falls within a used portion of the image reject filter passband can be downconverted with image rejection if the utilized bandwidth portion is no greater than about 4 times the IF minus the bandwidth of a channel in the filter passband. Low side injection is used for channels falling within the lower half of the passband of the image reject filter, while high-side injection is used for channels falling within the upper half thereof. The image always remains outside the passband and the receiver can accommodate a greatly increased number of channels.
摘要翻译：多通道超外差接收机采用低中频（IF），并将所选择的本地振荡器（LO）信号的高侧注入和低端注入混频器，以将图像频率定位在单个图像的通带之外拒绝过滤器如果所使用的带宽部分不大于IF的大约4倍，而不是滤波器通带中的信道的带宽，则落入图像拒绝滤波器通带的使用部分内的任何信道可以被镜像抑制下变频。低边注入用于落在图像抑制滤波器通带下半部的通道，而高边注入用于落在其上半部分的通道。图像始终保持在通带外，接收器可以容纳大量增加的通道数。

2. 发明申请

US20080218429A1 Phased Array Antenna Applications on Universal Frequency Translation 有权
标题翻译：相控阵天线在通用频率转换中的应用
公开(公告)号：US20080218429A1
公开(公告)日：2008-09-11
申请号：US12014461
申请日：2008-01-15
申请人： Martin R. Johnson , Jonathan S. Jensen , Robert T. Short , Jamison L. Young , David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses
发明人： Martin R. Johnson , Jonathan S. Jensen , Robert T. Short , Jamison L. Young , David F. Sorrells , Michael J. Bultman , Robert W. Cook , Richard C. Looke , Charley D. Moses
IPC分类号： H01Q21/00
CPC分类号： H03D7/00
摘要： A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.
摘要翻译：通用频率转换模块（UFT）频率通过根据周期性控制信号（也称为混叠信号）对EM输入信号进行采样来转换电磁（EM）输入信号。通过控制相对采样时间，UFT模块在频率转换期间实现相对相移。换句话说，通过在一个时间点相对于另一个时间点对输入信号进行采样，可以在输出信号中引入相对相移。因此，UFT模块可以被配置为集成频率转换器和移相器。这包括作为集成的下变频器和移相器的UFT模块，以及作为集成上变频器和移相器的UFT模块。通用频率转换和相移的应用包括利用集成频率转换和相移技术来引导相控阵天线的一个或多个主波束的相控阵天线。

3. 外观设计

USD530317S1 Radio modem having a chamfered sheet metal shield 有权
标题翻译：无线电调制解调器具有倒角金属屏蔽
公开(公告)号：USD530317S1
公开(公告)日：2006-10-17
申请号：US29214943
申请日：2004-10-12
申请人： Martin R. Johnson , Hugh C. Nielsen , David C. Steed
设计人： Martin R. Johnson , Hugh C. Nielsen , David C. Steed

4. 发明授权

US06879817B1 DC offset, re-radiation, and I/Q solutions using universal frequency translation technology 有权
标题翻译： DC偏移，重新辐射和使用通用频率转换技术的I / Q解决方案
公开(公告)号：US06879817B1
公开(公告)日：2005-04-12
申请号：US09526041
申请日：2000-03-14
申请人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L Young
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L Young
IPC分类号： H03C3/40 , H03D3/00 , H03D7/00 , H04B1/12 , H04B1/28 , H04B1/30 , H04B1/10
CPC分类号： H04B1/12 , H03C3/40 , H03D3/006 , H03D7/00 , H04B1/123 , H04B1/28 , H04B1/30
摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.
摘要翻译：这里描述了通过使EM信号进行混叠来对电磁（EM）信号进行下变频的方法，系统和装置及其应用。本文还描述了降低或消除直流偏移电压和下变频电磁（EM）信号时产生的再辐射。本文还描述了下变频信号和改善接收机动态范围。

5. 发明授权

US06717537B1 Method and apparatus for minimizing latency in digital signal processing systems 有权
标题翻译：用于最小化数字信号处理系统中的等待时间的方法和装置
公开(公告)号：US06717537B1
公开(公告)日：2004-04-06
申请号：US10179930
申请日：2002-06-24
申请人： Xiaoling Fang , Keith L. Davis , Martin R. Johnson
发明人： Xiaoling Fang , Keith L. Davis , Martin R. Johnson
IPC分类号： H03M300
CPC分类号： H04R3/00
摘要： A method and an apparatus for minimizing latency in digital signal processing paths. One example is an active noise cancellation device. The system includes a digital closed feedback loop having a forward path and a feedback path. The forward path includes a compensation filter, a digital-to-analog converter, and an output transducer. The feedback path includes an input transducer, a feedback delta-sigma modulator, and a feedback sampling-rate converter. An input signal is processed in one of several ways into a processed digital input signal having a preselected intermediate sampling rate. Through the feedback path, an analog output signal is processed into a digital feedback signal having substantially the same preselected intermediate sampling rate. The processed digital input signal and the digital feedback signal are combined and processed through the forward path to produce an anti disturbance signal that is combined with a disturbance signal to form the analog output signal.
摘要翻译：一种用于最小化数字信号处理路径中的等待时间的方法和装置。一个实例是主动噪声消除装置。该系统包括具有正向路径和反馈路径的数字闭合反馈回路。正向路径包括补偿滤波器，数模转换器和输出换能器。反馈路径包括输入变换器，反馈Δ-Σ调制器和反馈采样率转换器。将输入信号以几种方式之一处理成具有预选中间采样率的经处理的数字输入信号。通过反馈路径，模拟输出信号被处理成具有基本上相同的预选中间采样率的数字反馈信号。处理的数字输入信号和数字反馈信号通过正向路径组合和处理，以产生与干扰信号组合以形成模拟输出信号的抗干扰信号。

6. 发明授权

US08653939B2 Coded wireless key card sensor unit 有权
标题翻译：编码无线键卡传感器单元
公开(公告)号：US08653939B2
公开(公告)日：2014-02-18
申请号：US12896851
申请日：2010-10-02
申请人： Martin R. Johnson , Jan F. Finlinson , Jeremy P. Willden , Robert E. Gooch
发明人： Martin R. Johnson , Jan F. Finlinson , Jeremy P. Willden , Robert E. Gooch
IPC分类号： G05B19/00
CPC分类号： G06K13/0856 , H01H27/00
摘要： A coded wireless sensor unit has a slot sized to receive a key card. When a key card is inserted into the slot, the act of insertion generates a energy-harvested power pulse, which powers circuitry that reads electrical device control information coded on the key card and creates a first information packet signal that is transmitted by an on-board transmitter. The signal can be read by a receiver and relayed to a control unit which controls certain electrical devices which consume line power in response to received information packet signals. The control unit decodes received information packet signals and either turns on or activates the electrical devices in accordance with the decoded device control information. Removal of a key card can also be used to generate a power pulse, which creates a second information packet signal that is used to turn off or deactivate the electrical devices.
摘要翻译：编码无线传感器单元具有尺寸适于接收钥匙卡的插槽。当钥匙卡被插入插槽中时，插入的动作产生能量收集的电力脉冲，该脉冲为读取在钥匙卡上编码的电气设备控制信息的电路供电，并产生第一信息包信号，板式变送器。信号可以由接收机读取并被中继到控制单元，该控制单元响应于接收到的信息分组信号来控制消耗线路功率的某些电气设备。控制单元对接收的信息分组信号进行解码，并且根据解码的设备控制信息打开或激活电气设备。钥匙卡的移除也可用于产生功率脉冲，其产生用于关闭或停用电气设备的第二信息分组信号。

7. 发明授权

US08592703B2 Tamper-resistant, energy-harvesting switch assemblies 有权
标题翻译：防篡改的能量开关组件
公开(公告)号：US08592703B2
公开(公告)日：2013-11-26
申请号：US13104859
申请日：2011-05-10
申请人： Martin R. Johnson , Jan F. Finlinson , Jeremy P. Willden , Robert E. Gooch
发明人： Martin R. Johnson , Jan F. Finlinson , Jeremy P. Willden , Robert E. Gooch
IPC分类号： H01H3/00 , H01H13/00
CPC分类号： H01H23/02 , H01H1/22 , H01H2239/076
摘要： Tamper-resistant, longer-lasting energy-harvesting switch assemblies that can accommodate longer antennas required for operation in the 315 MHz radio frequency band are provided. In order to accommodate longer antenna that will not fit within the energy-harvesting module, the front major face of the back plate is equipped with a perimetric channel or trough into which a wire antenna can be installed. The problem of rocker wear in prior-art devices caused by abrasive action of the bows is rectified by a redesign of the rocker and the manufacture of a wear-resistant insert that snaps into place at the rear of the rocker. The potential theft problem associated with prior-art devices has been resolved by redesigning the back plate and the retainer clip that engages latches on the redesigned back plate. Non-destructive removal of the retainer clip can be effected only with a special tool.
摘要翻译：提供了能够容纳在315MHz无线电频带中操作所需的更长天线的防篡改，持久的能量收集开关组件。为了适应不适合能量收集模块的更长的天线，背板的前主面配备有可以安装有线天线的周边通道或槽。现有技术装置中由于弓的磨损作用引起的摇摆磨损的问题通过重新设计摇杆并制造耐磨插入件而被整修，所述耐磨插入件卡扣在摇杆后部的适当位置。通过重新设计接合重新设计的背板上的闩锁的背板和固定夹，解决了与现有技术装置相关的潜在的盗窃问题。保持夹的无损拆卸只能用专用工具进行。

8. 发明授权

US08224281B2 Down-conversion of an electromagnetic signal with feedback control 失效
标题翻译：具有反馈控制的电磁信号下变频
公开(公告)号：US08224281B2
公开(公告)日：2012-07-17
申请号：US12976477
申请日：2010-12-22
申请人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L. Young
发明人： David F. Sorrells , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, Jr. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L. Young
IPC分类号： H04B1/26 , H04K3/00
CPC分类号： H04B1/12 , H03C3/40 , H03D3/006 , H03D7/00 , H04B1/123 , H04B1/28 , H04B1/30
摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.
摘要翻译：这里描述了通过使EM信号进行混叠来对电磁（EM）信号进行下变频的方法，系统和装置及其应用。本文还描述了降低或消除直流偏移电压和下变频电磁（EM）信号时产生的再辐射。本文还描述了下变频信号和改善接收机动态范围。

9. 发明申请

US20110092177A1 Down-Conversion of an Electromagnetic Signal with Feedback Control 失效
标题翻译：具有反馈控制的电磁信号的下变频
公开(公告)号：US20110092177A1
公开(公告)日：2011-04-21
申请号：US12976477
申请日：2010-12-22
申请人： David F. SORRELLS , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, JR. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L. Young
发明人： David F. SORRELLS , Michael J. Bultman , Robert W. Cook , Jonathan S. Jensen , Martin R. Johnson , Richard C. Looke , Charley D. Moses, JR. , Gregory S. Rawlins , Michael W. Rawlins , Robert T. Short , Jamison L. Young
IPC分类号： H04B1/26
CPC分类号： H04B1/12 , H03C3/40 , H03D3/006 , H03D7/00 , H04B1/123 , H04B1/28 , H04B1/30
摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.
摘要翻译：这里描述了通过使EM信号进行混叠来对电磁（EM）信号进行下变频的方法，系统和装置及其应用。本文还描述了降低或消除直流偏移电压和下变频电磁（EM）信号时产生的再辐射。本文还描述了下变频信号和改善接收机动态范围。

10. 发明授权

US07554508B2 Phased array antenna applications on universal frequency translation 有权
标题翻译：相控阵天线应用于通用频率转换
公开(公告)号：US07554508B2
公开(公告)日：2009-06-30
申请号：US12014461
申请日：2008-01-15
申请人： Martin R Johnson , Jonathan S Jensen , Robert T. Short , Jamison L. Young , David F Sorrells , Michael J. Bultman , Robert W Cook , Richard C. Looke , Charley D. Moses, Jr.
发明人： Martin R Johnson , Jonathan S Jensen , Robert T. Short , Jamison L. Young , David F Sorrells , Michael J. Bultman , Robert W Cook , Richard C. Looke , Charley D. Moses, Jr.
IPC分类号： H01Q21/00
CPC分类号： H03D7/00
摘要： A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.
摘要翻译：通用频率转换模块（UFT）频率通过根据周期性控制信号（也称为混叠信号）对EM输入信号进行采样来转换电磁（EM）输入信号。通过控制相对采样时间，UFT模块在频率转换期间实现相对相移。换句话说，通过在一个时间点相对于另一个时间点对输入信号进行采样，可以在输出信号中引入相对相移。因此，UFT模块可以被配置为集成频率转换器和移相器。这包括作为集成的下变频器和移相器的UFT模块，以及作为集成上变频器和移相器的UFT模块。通用频率转换和相移的应用包括利用集成频率转换和相移技术来引导相控阵天线的一个或多个主波束的相控阵天线。

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