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    Methods and systems for down-converting electromagnetic signals, and applications thereof
    91.
    发明授权
    Methods and systems for down-converting electromagnetic signals, and applications thereof 有权
    用于下变频电磁信号的方法和系统及其应用

    公开(公告)号：US06836650B2

    公开(公告)日：2004-12-28

    申请号：US10330219

    申请日：2002-12-30

    申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr.

    发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr.

    IPC分类号： H04B126

    CPC分类号： H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

    摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Briefly stated, such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a demodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

    摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 简要地说，这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一实施例中，EM信号被下变频为解调的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

    UP-CONVERSION BASED ON GATED INFORMATION SIGNAL
    94.
    发明申请
    UP-CONVERSION BASED ON GATED INFORMATION SIGNAL 审中-公开
    基于门控信息信号的上变频

    公开(公告)号：US20130122835A1

    公开(公告)日：2013-05-16

    申请号：US13550492

    申请日：2012-07-16

    申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

    发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

    IPC分类号： H04B1/04

    CPC分类号： H03D7/00 ,  H03C1/62 ,  H04B1/04 ,  H04B7/12 ,  H04B2001/0491

    摘要： A method and system is described wherein an information signal is gated at a frequency that is a sub-harmonic of the frequency of the desired output signal. In the modulation embodiments, the information signal is modulated as part of the up-conversion process. In a first modulation embodiment, one information signal is phase modulated onto the carrier signal as part of the up-conversion process. In a second modulation embodiment, two information signals are multiplied, and, as part of the up-conversion process, one signal is phase modulated onto the carrier and the other signal is amplitude modulated onto the carrier. In a third modulation embodiment, one information signal is phase modulated onto the “I” phase of the carrier signal as part of the up-conversion process and a second information signal is phase modulated onto the “Q” phase of the carrier as part of the up-conversion process.

    摘要翻译： 描述了一种方法和系统，其中信息信号以作为期望输出信号的频率的次谐波的频率门控。 在调制实施例中，作为上转换处理的一部分调制信息信号。 在第一调制实施例中，作为上转换处理的一部分，一个信息信号被相位调制到载波信号上。 在第二调制实施例中，将两个信息信号相乘，并且作为上转换处理的一部分，一个信号被相位调制到载波上，另一个信号被幅度调制到载波上。 在第三调制实施例中，一个信息信号作为上变频处理的一部分被相位调制到载波信号的“I”相上，并且第二信息信号被相位调制到载波的“Q”相，作为 上转换过程。

    METHODS AND SYSTEMS FOR DOWN-CONVERTING A SIGNAL USING A COMPLEMENTARY TRANSISTOR STRUCTURE
    95.
    发明申请
    METHODS AND SYSTEMS FOR DOWN-CONVERTING A SIGNAL USING A COMPLEMENTARY TRANSISTOR STRUCTURE 失效
    使用补充晶体管结构下变频信号的方法和系统

    公开(公告)号：US20120220254A1

    公开(公告)日：2012-08-30

    申请号：US13428816

    申请日：2012-03-23

    申请人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

    发明人： David F. Sorrells ,  Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, JR.

    IPC分类号： H04B1/16 ,  H04B1/26

    CPC分类号： H04L27/3881 ,  H03C1/62 ,  H03D7/00 ,  H03D7/1441 ,  H03D7/1475 ,  H04B1/0025 ,  H04B1/16 ,  H04B1/28 ,  H04B7/12 ,  H04L25/08 ,  H04L27/00 ,  H04L27/06 ,  H04L27/12 ,  H04L27/14 ,  H04L27/148 ,  H04L27/156 ,  H04L27/2672

    摘要： Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal are described herein. Such methods, systems, and apparatuses operate by receiving an EM signal and an aliasing signal having an aliasing rate. The EM signal is aliased according to the aliasing signal to down-convert the EM signal. The term aliasing, as used herein, refers to both down-converting an EM signal by under-sampling the EM signal at an aliasing rate, and down-converting an EM signal by transferring energy from the EM signal at the aliasing rate. In an embodiment, the EM signal is down-converted to an intermediate frequency (IF) signal. In another embodiment, the EM signal is down-converted to a emodulated baseband information signal. In another embodiment, the EM signal is a frequency modulated (FM) signal, which is down-converted to a non-FM signal, such as a phase modulated (PM) signal or an amplitude modulated (AM) signal.

    摘要翻译： 这里描述了通过使EM信号进行混叠来降低电磁（EM）信号的转换的方法，系统和装置。 这样的方法，系统和装置通过接收具有混叠速率的EM信号和混叠信号来操作。 EM信号根据混叠信号进行混叠，以降低EM信号的转换。 如本文所使用的，术语混叠是指通过以混叠速率对EM信号进行欠采样，并以混叠速率从EM信号传输能量来对EM信号进行下变频来对EM信号进行下变频。 在一个实施例中，EM信号被下变频到中频（IF）信号。 在另一个实施例中，EM信号被下变频为被仿真的基带信息信号。 在另一个实施例中，EM信号是频率调制（FM）信号，其被下变频成非FM信号，例如相位调制（PM）信号或幅度调制（AM）信号。

    Phase shifting applications of universal frequency translation
    98.
    发明授权
    Phase shifting applications of universal frequency translation 有权
    通用频率转换的相移应用

    公开(公告)号：US07082171B1

    公开(公告)日：2006-07-25

    申请号：US09590955

    申请日：2000-06-09

    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： H03K9/00 ,  H04L27/06 ,  H04L27/14 ,  H04L27/22

    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。

    Method and system for ensuring reception of a communications signal
    100.
    发明授权
    Method and system for ensuring reception of a communications signal 有权
    确保接收通信信号的方法和系统

    公开(公告)号：US06647250B1

    公开(公告)日：2003-11-11

    申请号：US09376509

    申请日：1999-08-18

    申请人： Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr. ,  David F. Sorrells

    发明人： Michael J. Bultman ,  Robert W. Cook ,  Richard C. Looke ,  Charley D. Moses, Jr. ,  David F. Sorrells

    IPC分类号： H04B102

    CPC分类号： H03D7/00 ,  H04B7/12

    摘要： The present invention includes a system and method for ensuring reception of a communications signal. A modulating baseband signal with desired information is accepted, and a plurality of redundant spectrums is generated. Each redundant spectrum comprises the necessary amplitude, phase, and frequency information to substantially reconstruct the modulating baseband signal. It is expected but not required that the redundant spectrums will be generated at a first location and sent to a second location over a communications medium. At the second location, the redundant spectrums are independently processed to recover a demodulating baseband signal for each of the redundant spectrums. In one embodiment, an error detection process is employed at the second location to detect and eliminate those demodulated baseband signals that have been corrupted during transmission. An error-free demodulated baseband signal is selected from the remaining demodulated baseband signals. The error-free demodulated baseband signal is representative of the modulating baseband signal sent over the communications medium.

    摘要翻译： 本发明包括一种用于确保接收通信信号的系统和方法。 接收具有期望信息的调制基带信号，并产生多个冗余频谱。 每个冗余频谱包括必要的幅度，相位和频率信息，以基本上重构调制基带信号。 期望但不要求冗余频谱将在第一位置生成并通过通信介质发送到第二位置。 在第二位置，冗余频谱被独立地处理以恢复每个冗余频谱的解调基带信号。 在一个实施例中，在第二位置采用错误检测处理来检测和消除在传输期间被破坏的那些解调的基带信号。 从剩余的解调基带信号中选择无误差的解调基带信号。 无差错解调基带信号代表通过通信介质发送的调制基带信号。