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114 条记录 (耗时 0.083 秒)

    Frequency Conversion Based on Gated Information Signal
    61.
    发明申请
    Frequency Conversion Based on Gated Information Signal 有权
    基于门控信息信号的频率转换

    公开(公告)号：US20100056084A1

    公开(公告)日：2010-03-04

    申请号：US12615326

    申请日：2009-11-10

    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： H01Q11/12

    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 signals 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. In a fourth modulation embodiment, four information signals are phase and amplitude modulated onto the “I” and “Q” phases of the carrier as part of the up-conversion process. There are at least two implementations of each of the aforementioned embodiments.

    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。 在第四调制实施例中，作为上转换处理的一部分，四个信息信号被相位和幅度调制到载波的“I”和“Q”相。 上述各实施例中至少有两个实现方式。

    Method and circuit for down-converting a signal
    63.
    发明授权
    Method and circuit for down-converting a signal 有权
    用于下变频信号的方法和电路

    公开(公告)号：US07218907B2

    公开(公告)日：2007-05-15

    申请号：US11173021

    申请日：2005-07-05

    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 ,  H01Q11/12

    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。

    Method and system for frequency up-conversion with modulation embodiments
    64.
    发明授权
    Method and system for frequency up-conversion with modulation embodiments 有权

    公开(公告)号：US07039372B1

    公开(公告)日：2006-05-02

    申请号：US09548923

    申请日：2000-04-13

    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 signals 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. In a fourth modulation embodiment, four information signals are phase and amplitude modulated onto the “I” and “Q” phases of the carrier as part of the up-conversion process. There are at least two implementations of each of the aforementioned embodiments.

    MDG method for output signal generation
    70.
    发明授权
    MDG method for output signal generation 有权
    用于输出信号生成的MDG方法

    公开(公告)号：US06353735B1

    公开(公告)日：2002-03-05

    申请号：US09379497

    申请日：1999-08-23

    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： H04B104

    CPC分类号： H03D7/00 ,  H03C1/62 ,  H04B7/12

    摘要： A method and system is described wherein a signal with a lower frequency is up-converted to a higher frequency. In one embodiment, the higher frequency signal is used as a stable frequency and phase reference. In another embodiment, the invention is used as a transmitter. The up-conversion is accomplished by controlling a switch with an oscillating signal, the frequency of the oscillating signal being selected as a sub-harmonic of the desired output frequency. When the invention is being used as a frequency or phase reference, the oscillating signal is not modulated, and controls a switch that is connected to a bias signal. When the invention is being used in the frequency modulation (FM) or phase modulation (PM) implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate the bias signal. In the amplitude modulation implementation (AM), the oscillating signal is not modulated, but rather causes the switch to gate a reference signal that is substantially equal to or proportional to the information signal. In the FM and PM implementations, the signal that is output from the switch is modulated substantially the same as the modulated oscillating signal. In the AM implementation, the signal that is output from the switch has an amplitude that is a function of the information signal. In both embodiments, the output of the switch is filtered, and the desired harmonic is output.

    摘要翻译： 描述了一种方法和系统，其中具有较低频率的信号被上变频到更高的频率。 在一个实施例中，较高频率信号用作稳定的频率和相位参考。 在另一个实施例中，本发明用作发射机。 通过用振荡信号控制开关来实现上变换，振荡信号的频率被选择为所需输出频率的次谐波。 当本发明用作频率或相位参考时，振荡信号不被调制，并且控制连接到偏置信号的开关。 当本发明用于频率调制（FM）或相位调制（PM）实施方案中时，振荡信号在信号信号被调制之前，使开关门偏置偏置信号。 在幅度调制实现（AM）中，振荡信号不被调制，而是使开关栅极基本上等于或者与信息信号成比例的参考信号。 在FM和PM实现中，从开关输出的信号被调制为基本上与调制振荡信号相同。 在AM实现中，从开关输出的信号具有作为信息信号的函数的幅度。 在两个实施例中，开关的输出被滤波，并且输出所需的谐波。