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31. 发明授权

US08295800B2 Apparatus and method for down-converting electromagnetic signals by controlled charging and discharging of a capacitor 有权
标题翻译：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：US08295800B2
公开(公告)日：2012-10-23
申请号：US12876356
申请日：2010-09-07
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 , 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.
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。

32. 发明授权

US08036304B2 Apparatus and method of differential IQ frequency up-conversion 有权
标题翻译：差分IQ频率上变换的装置和方法
公开(公告)号：US08036304B2
公开(公告)日：2011-10-11
申请号：US12662190
申请日：2010-04-05
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： H04L27/04 , H04L27/12 , H04L27/20
CPC分类号： H04B1/04 , H03C3/40 , H03D3/006 , H03D7/00 , H04B1/408 , H04B2001/0491 , H04L25/03
摘要： A balanced transmitter up-converts I and Q baseband signals directly from baseband-to-RF. The up-conversion process is sufficiently linear that no IF processing is required, even in communications applications that have stringent requirements on spectral growth. In operation, the balanced modulator sub-harmonically samples the I and Q baseband signals in a balanced and differential manner, resulting in harmonically rich signal. The harmonically rich signal contains multiple harmonic images that repeat at multiples of the sampling frequency, where each harmonic contains the necessary information to reconstruct the I and Q baseband signals. The differential sampling is performed according to a first and second control signals that are phase shifted with respect to each other. In embodiments of the invention, the control signals have pulse widths (or apertures) that operate to improve energy transfer to a desired harmonic in the harmonically rich signal. A bandpass filter can then be utilized to select the desired harmonic of interest from the harmonically rich signal.
摘要翻译：平衡发射机直接从基带到RF RF转换I和Q基带信号。上转换过程是足够的线性，即使在对频谱增长有严格要求的通信应用中也不需要IF处理。在运行中，平衡调制器以平衡和差分的方式对I和Q基带信号进行子谐波采样，从而产生谐波丰富的信号。谐波丰富的信号包含以抽样频率的倍数重复的多个谐波图像，其中每个谐波包含重建I和Q基带信号的必要信息。根据相对于彼此相移的第一和第二控制信号执行差分采样。在本发明的实施例中，控制信号具有脉冲宽度（或孔径），其操作以改善在谐波丰富信号中的期望谐波的能量传递。然后可以利用带通滤波器从谐波丰富的信号中选择所需要的谐波。

33. 发明授权

US07929638B2 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments 有权
标题翻译：无线局域网（WLAN）使用通用频率转换技术，包括多相实施例
公开(公告)号：US07929638B2
公开(公告)日：2011-04-19
申请号：US12687699
申请日：2010-01-14
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： H04L27/00
CPC分类号： H03D3/006 , H03C3/40 , H03D7/00 , H04W84/12 , H04W88/02
摘要： Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal generator, a demodulation/modulation facilitation module, and a MAC interface. The WLAN receiver includes at least one universal frequency translation module that frequency down-converts a received EM signal. In embodiments, the UFT based receiver is configured in a multi-phase embodiment to reduce or eliminate re-radiation that is caused by DC offset. The WLAN transmitter includes at least one universal frequency translation module that frequency up-converts a baseband signal in preparation for transmission over the wireless LAN. In embodiments, the UFT based transmitter is configured in a differential and multi-phase embodiment to reduce carrier insertion and spectral growth.
摘要翻译：本文描述了频率转换及其应用，包括RF调制解调器和无线局域网（WLAN）应用。在实施例中，WLAN发明包括天线，LNA / PA模块，接收机，发射机，控制信号发生器，解调/调制促进模块和MAC接口。 WLAN接收机包括至少一个对所接收的EM信号进行下变频的通用频率转换模块。在实施例中，基于UFT的接收机被配置在多相实施例中以减少或消除由DC偏移引起的再辐射。 WLAN发射机包括至少一个通用频率转换模块，其对基带信号进行频率上变频，以准备通过无线LAN进行传输。在实施例中，基于UFT的发射机被配置在差分和多相实施例中以减少载波插入和频谱增长。

34. 发明申请

US20110059715A1 Apparatus and Method for Down-Converting Electromagnetic Signals by Controlled Charging and Discharging of a Capacitor 有权
标题翻译：通过控制充电和放电电容降低电磁信号的装置和方法
公开(公告)号：US20110059715A1
公开(公告)日：2011-03-10
申请号：US12876356
申请日：2010-09-07
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 forme 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。递归运算可以以载波信号的次谐波速率进行。本发明积累了递归运算的结果，并利用积累的结果来形成一个下变频信号。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。

35. 发明授权

US07724845B2 Method and system for down-converting and electromagnetic signal, and transforms for same 有权
标题翻译：用于下变频电磁信号的方法和系统，并对其进行转换
公开(公告)号：US07724845B2
公开(公告)日：2010-05-25
申请号：US11390153
申请日：2006-03-28
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： H03D1/00 , H04L27/06
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。

36. 发明授权

US07496342B2 Down-converting electromagnetic signals, including controlled discharge of capacitors 有权
标题翻译：下变频电磁信号，包括电容器的受控放电
公开(公告)号：US07496342B2
公开(公告)日：2009-02-24
申请号：US10972133
申请日：2004-10-25
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 EM signal and recursively operating on approximate half cycles 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 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 the 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EM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对偏置信号进行栅极输入。开关的输出被滤波，输出所需的谐波。

37. 发明授权

US07308242B2 Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same 有权
标题翻译：用于对电磁信号进行下变频和上变频的方法和系统，并对其进行转换
公开(公告)号：US07308242B2
公开(公告)日：2007-12-11
申请号：US10914337
申请日：2004-08-10
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 , H04B1/00
CPC分类号： H04B7/12 , H03C1/62 , H03D7/00
摘要： Methods, systems, and apparatuses, and combinations and sub-combinations thereof, for down-converting and up-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. 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.
摘要翻译：这里描述了用于电磁（EM）信号的下变频和上变频的方法，系统和装置及其组合和子组合。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。通过控制具有振荡信号的开关来实现上转换，将振荡信号的频率选择为所需输出频率的次谐波。

38. 发明授权

US07110444B1 Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations 有权
标题翻译：使用通用频率转换技术的无线局域网（WLAN），包括多相实施例和电路实现
公开(公告)号：US07110444B1
公开(公告)日：2006-09-19
申请号：US09632856
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： H04L5/16
CPC分类号： H03D3/006 , H03C3/40 , H03D7/00 , H04W84/12 , H04W88/02
摘要： Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal generator, a demodulation/modulation facilitation module, and a MAC interface. The WLAN receiver includes at least one universal frequency translation module that frequency down-converts a received EM signal. In embodiments, the UFT based receiver is configured in a multi-phase embodiment to reduce or eliminate re-radiation that is caused by DC offset. The WLAN transmitter includes at least one universal frequency translation module that frequency up-converts a baseband signal in preparation for transmission over the wireless LAN. In embodiments, the UFT based transmitter is configured in a differential and multi-phase embodiment to reduce carrier insertion and spectral growth.
摘要翻译：本文描述了频率转换及其应用，包括RF调制解调器和无线局域网（WLAN）应用。在实施例中，WLAN发明包括天线，LNA / PA模块，接收机，发射机，控制信号发生器，解调/调制促进模块和MAC接口。 WLAN接收机包括至少一个对所接收的EM信号进行下变频的通用频率转换模块。在实施例中，基于UFT的接收机被配置在多相实施例中以减少或消除由DC偏移引起的再辐射。 WLAN发射机包括至少一个通用频率转换模块，其对基带信号进行频率上变频，以准备通过无线LAN进行传输。在实施例中，基于UFT的发射机被配置在差分和多相实施例中以减少载波插入和频谱增长。

39. 发明授权

US07065162B1 Method and system for down-converting an electromagnetic signal, and transforms for same 有权
标题翻译：用于下变频电磁信号的方法和系统，并对其进行转换
公开(公告)号：US07065162B1
公开(公告)日：2006-06-20
申请号：US09550642
申请日：2000-04-14
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： H03D1/00 , H04L27/06
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。

40. 发明授权

US08588725B2 Apparatus, system, and method for down converting and up-converting electromagnetic signals 有权
标题翻译：用于下变频和上变频电磁信号的装置，系统和方法
公开(公告)号：US08588725B2
公开(公告)日：2013-11-19
申请号：US13618621
申请日：2012-09-14
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 , 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.
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。当本发明在频率调制或相位调制实现中被使用时，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。

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