利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

213 条记录 (耗时 0.113 秒)

    Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor
    42.
    发明授权
    Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 有权
    通过电容器的控制充放电对电磁信号进行下变频的装置和方法

    公开(公告)号：US07822401B2

    公开(公告)日：2010-10-26

    申请号：US10961342

    申请日：2004-10-12

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

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

    IPC分类号： H04B1/26

    CPC分类号： H03D7/00 ,  H04B1/16

    摘要： Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In embodiments, 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 in the frequency modulation or phase modulation implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate a bias signal. The output of the switch is filtered, and the desired harmonic is output.

    摘要翻译： 用于下变频和上变频电磁信号的方法，系统和装置。 在实施例中，本发明通过接收电磁信号并且在载波信号的近似半周期上递归地操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。 在实施例中，通过用振荡信号控制开关来实现上转换，振荡信号的频率被选择为所需输出频率的次谐波。 当本发明被用于频率调制或相位调制实现中时，振荡信号在信号信号被调制之前使得开关门偏置偏置信号。 开关的输出被滤波，输出所需的谐波。

    Method and circuit for down-converting a signal
    44.
    发明授权
    Method and circuit for down-converting a signal 失效
    用于下变频信号的方法和电路

    公开(公告)号：US07389100B2

    公开(公告)日：2008-06-17

    申请号：US10394069

    申请日：2003-03-24

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

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

    IPC分类号： H04B1/16

    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。

    Apparatus, system, and method for up-converting electromagnetic signals
    45.
    发明授权
    Apparatus, system, and method for up-converting electromagnetic signals 有权
    用于上变频电磁信号的装置，系统和方法

    公开(公告)号：US07218899B2

    公开(公告)日：2007-05-15

    申请号：US10961253

    申请日：2004-10-12

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

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

    IPC分类号： H04B1/04

    CPC分类号： H03D7/00 ,  H04B1/16

    摘要： Methods, systems, and apparatuses for down-converting and up-converting an electromagnetic signal. In embodiments, the invention operates by receiving an electromagnetic signal and recursively operating on approximate half cycles of a carrier signal. The recursive operations can be performed at a sub-harmonic rate of the carrier signal. The invention accumulates the results of the recursive operations and uses the accumulated results to form a down-converted signal. In embodiments, 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 in the frequency modulation or phase modulation implementations, the oscillating signal is modulated by an information signal before it causes the switch to gate a bias signal. The output of the switch is filtered, and the desired harmonic is output.

    摘要翻译： 用于下变频和上变频电磁信号的方法，系统和装置。 在实施例中，本发明通过接收电磁信号并且在载波信号的近似半周期上递归地操作。 可以以载波信号的次谐波速率执行递归运算。 本发明积累了递归运算的结果，并使用累加结果形成降频转换信号。 在实施例中，通过用振荡信号控制开关来实现上转换，振荡信号的频率被选择为所需输出频率的次谐波。 当本发明被用于频率调制或相位调制实现中时，振荡信号在信号信号被调制之前使得开关门偏置偏置信号。 开关的输出被滤波，输出所需的谐波。

    Method and circuit for down-converting a signal
    50.
    发明申请
    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：US20080272441A1

    公开(公告)日：2008-11-06

    申请号：US12007342

    申请日：2008-01-09

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

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

    IPC分类号： H01L29/78 ,  H01L21/336

    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 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 signal or an amplitude modulated 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信号被下变频为中频信号。 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，例如相位调制信号或幅度调制信号。