公开(公告)号：US07054296B1

公开(公告)日：2006-05-30

申请号：US09632857

申请日：2000-08-04

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： H04Q7/24

CPC分类号： H04B1/406

摘要： Frequency translation and applications of same are described herein, including wireless local area network (WLAN) applications such as IEEE Standard 802.11 WLANs. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and filtering, and combinations and applications of same.

摘要翻译： 本文描述了频率转换及其应用，包括诸如IEEE标准802.11 WLAN的无线局域网（WLAN）应用。 这样的应用包括但不限于降频转换，上变频，增强信号接收，统一下变频和滤波，以及它们的组合和应用。

公开(公告)号：US07010286B2

公开(公告)日：2006-03-07

申请号：US09855851

申请日：2001-05-16

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： H04B15/00

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.

公开(公告)号：US07539474B2

公开(公告)日：2009-05-26

申请号：US11059536

申请日：2005-02-17

申请人： David F. Sorrels ,  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. Sorrels ,  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： H04B1/10 ,  H04Q7/20

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。

公开(公告)号：US08340618B2

公开(公告)日：2012-12-25

申请号：US12976839

申请日：2010-12-22

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

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

IPC分类号： G06F15/16

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, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the 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 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 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： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简言之，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上递归地操作）来操作。 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。

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。

公开(公告)号：US20140241464A1

公开(公告)日：2014-08-28

申请号：US14172392

申请日：2014-02-04

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

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

IPC分类号： H04L27/12

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, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc) of the 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 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 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： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简要地说，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上递归地操作）来操作。 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。

公开(公告)号：US07865177B2

公开(公告)日：2011-01-04

申请号：US12349802

申请日：2009-01-07

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

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

IPC分类号： G06F15/16

CPC分类号： H03D7/00

摘要： Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting an electromagnetic (EM) signal are described herein. Briefly stated, in embodiments the invention operates by receiving an EM signal and recursively operating on approximate half cycles (½, 1½, 2½, etc.) of the 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 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 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： 本文描述了用于电磁（EM）信号的下变频的方法，系统和装置，以及其组合和子组合。 简言之，在实施例中，本发明通过接收EM信号并且在载波信号的近似半周期（½，1½，2½等）上进行递归地操作）。 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。

公开(公告)号：US07529522B2

公开(公告)日：2009-05-05

申请号：US11582367

申请日：2006-10-18

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

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

IPC分类号： H04B1/02 ,  H04B1/04

CPC分类号： H03C3/38 ,  H03C1/62 ,  H03C3/40 ,  H03D7/00 ,  H04B1/04 ,  H04B7/12 ,  H04B2001/0491

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。

公开(公告)号：US20130182749A1

公开(公告)日：2013-07-18

申请号：US13550501

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： H04W88/06

CPC分类号： H04L27/2601 ,  H03D7/00 ,  H04L27/0008 ,  H04L27/02 ,  H04L27/18 ,  H04L27/34 ,  H04W88/06

摘要： A communication system comprising a multi-protocol, multi-bearer sub-system is described herein. The sub-system is a universal platform module that can transmit and receive one or more information signals in one or more protocols using one or more bearer services. In one embodiment, the sub-system may form a portion of a transceiver that is composed of a transmitter and a receiver, and which is a gateway server between a personal area network (PAN) and the global wireless network.

摘要翻译： 本文描述了包括多协议多承载子系统的通信系统。 子系统是可以使用一个或多个承载服务在一个或多个协议中发送和接收一个或多个信息信号的通用平台模块。 在一个实施例中，子系统可以形成由发射机和接收机组成的收发器的一部分，并且其是个人区域网络（PAN）和全球无线网络之间的网关服务器。

公开(公告)号：US08019291B2

公开(公告)日：2011-09-13

申请号：US12435595

申请日：2009-05-05

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： G06F15/16

CPC分类号： H03C1/36 ,  H03C3/38 ,  H03D7/00 ,  H03D7/125 ,  H04B2001/0491

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。