专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5542096A Method for a transmitter to compensate for varying loading without an isolator 失效
公开(公告)号：US5542096A
公开(公告)日：1996-07-30
申请号：US379417
申请日：1995-01-27
申请人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
发明人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
IPC分类号： H03F1/32 , H03F1/34 , H04B1/04 , H04B17/00
CPC分类号： H03F1/3294 , H03F1/3247 , H03F1/345 , H03F2200/57 , H04B2001/0416 , H04B2001/0433
摘要： A transmitter that includes an amplifying element, an antenna, a gain stage, and a closed loop feedback may compensate for varying antenna loads without an isolator. This may be accomplished by determining the effects of the varying loading on overall loop gain. Knowing the effects, the transmitter adjusts the gain of the gain stage to maintain a constant overall loop gain, thus eliminating the need for an isolator.

2. 发明授权

US5675287A Digital DC correction circuit for a linear transmitter 失效
标题翻译：用于线性变送器的数字直流校正电路
公开(公告)号：US5675287A
公开(公告)日：1997-10-07
申请号：US599769
申请日：1996-02-12
申请人： Michael H. Baker , Paul H. Gailus , William J. Turney , Lawrence F. Cygan
发明人： Michael H. Baker , Paul H. Gailus , William J. Turney , Lawrence F. Cygan
IPC分类号： H03F1/32 , H03F1/34 , H03G3/30
CPC分类号： H03G3/3047 , H03F1/3247 , H03F1/3282 , H03F1/345 , H03G3/3042
摘要： An amplifier structure (200) includes a main amplifier loop (203) for efficiently amplifying an input signal at a power amplifier (228) coupled to a load susceptible to impedance variations. The amplifier structure (200) includes a DC correction circuit (214) for detecting and correcting misadjustments in the amplifier (200) in order to eliminate DC offset associated therewith.
摘要翻译：放大器结构（200）包括主放大器环（203），用于有效地放大耦合到容易受阻抗变化的负载的功率放大器（228）的输入信号。放大器结构（200）包括用于检测和校正放大器（200）中的失调的DC校正电路（214），以便消除与其相关联的DC偏移。

3. 发明授权

US5574992A Method and apparatus for reducing off-channel interference produced by a linear transmitter 失效
标题翻译：用于减少由线性发射机产生的非信道干扰的方法和装置
公开(公告)号：US5574992A
公开(公告)日：1996-11-12
申请号：US235415
申请日：1994-04-29
申请人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney , Michael H. Baker
发明人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney , Michael H. Baker
IPC分类号： H03F1/32 , H04B1/04
CPC分类号： H03F1/34 , H03F1/3247 , H03F1/3294 , H04B1/0475 , H03F2200/57 , H04B2001/0433
摘要： A linear transmitter (100), which utilizes closed loop feedback to maintain its linearity, employs a method for reducing off-channel interference produced by the linear transmitter (100). A dynamically alterable parameter source (DAPS, 126) is provided to the linear transmitter (100). The DAPS (126) is then used to adjust at least one loop parameter of the closed loop feedback such that off-channel interference is reduced.
摘要翻译：使用闭环反馈来维持其线性度的线性发射机（100）采用减少线性发射机（100）产生的非信道干扰的方法。将动态可变参数源（DAPS，126）提供给线性发射机（100）。然后使用DAPS（126）来调整闭环反馈的至少一个环路参数，从而减少偏离信道干扰。

4. 发明授权

US5564086A Method and apparatus for enhancing an operating characteristic of a radio transmitter 失效
标题翻译：用于增强无线电发射机的操作特性的方法和装置
公开(公告)号：US5564086A
公开(公告)日：1996-10-08
申请号：US158551
申请日：1993-11-29
申请人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney , Francis R. Yester, Jr.
发明人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney , Francis R. Yester, Jr.
IPC分类号： H04B1/04
CPC分类号： H04B1/0458
摘要： In a radio transmitter (100) that includes a power amplifier (104) and an antenna (106), a method for enhancing an operating characteristic of the radio transmitter (100) can be accomplished in the following manner. The power amplifier (104) provides a signal (113) to a variable matching network (111), wherein the signal (113) comprises energy to be radiated by the antenna (106). The variable matching network (111) couples the signal (113) to a sampler (112) that is operably coupled to an output of the variable matching network (111 ) and the antenna (106). The sampler (112) samples a forward component (114) and a reflected component (115) of the signal (113). The radio transmitter (100) processes the sampled forward and reflected components (116, 118) to produce a feedback control signal (120). The feedback control signal (120) is used to adjust the variable matching network (111 ), such that an operating characteristic of the radio transmitter (100) is enhanced.
摘要翻译：在包括功率放大器（104）和天线（106）的无线电发射机（100）中，可以以下列方式实现增强无线电发射机（100）的工作特性的方法。功率放大器（104）向可变匹配网络（111）提供信号（113），其中信号（113）包括由天线（106）辐射的能量。可变匹配网络（111）将信号（113）耦合到可操作地耦合到可变匹配网络（111）和天线（106）的输出的采样器（112）。采样器（112）对信号（113）的正向分量（114）和反射分量（115）进行采样。无线电发射机（100）处理采样的正向和反射分量（116,118）以产生反馈控制信号（120）。反馈控制信号（120）用于调整可变匹配网络（111），使得无线电发射机（100）的工作特性得到增强。

5. 发明授权

US5564087A Method and apparatus for a linear transmitter 失效
标题翻译：线性变送器的方法和装置
公开(公告)号：US5564087A
公开(公告)日：1996-10-08
申请号：US333693
申请日：1994-11-03
申请人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
发明人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
IPC分类号： H03F1/34 , H03G3/30 , H04B1/04 , H01Q11/12
CPC分类号： H03G3/3042 , H03F1/34 , H03F2200/57 , H04B2001/0433
摘要： A method and apparatus is provided for a transmitter (200) with a stable, linear response. The transmitter (200) includes an amplification stage (242), and a negative feedback correction loop (244) with a feedback signal (252). A reference signal (251) is combined with the feedback signal (252) to produce an error signal (253) for coupling to the amplification stage (242). Transmitter parameters are varied when a difference between the reference signal (251) and the error signal (253) exceeds a particular threshold.
摘要翻译：为具有稳定的线性响应的发射机（200）提供了一种方法和装置。发射机（200）包括具有反馈信号（252）的放大级（242）和负反馈校正环（244）。参考信号（251）与反馈信号（252）组合以产生用于耦合到放大级（242）的误差信号（253）。当参考信号（251）和误差信号（253）之间的差超过特定阈值时，变送器参数是变化的。

6. 发明授权

US07071775B2 Method and apparatus for an enhanced efficiency power amplifier 有权
标题翻译：一种增强效率功率放大器的方法和装置
公开(公告)号：US07071775B2
公开(公告)日：2006-07-04
申请号：US10872748
申请日：2004-06-21
申请人： Paul H. Gailus , Lawrence F. Cygan
发明人： Paul H. Gailus , Lawrence F. Cygan
IPC分类号： H03F3/68
CPC分类号： H03F3/604 , H03F1/02 , H03F1/0288 , H03F3/602
摘要： A power amplifier that includes: an input drive controller (310) for receiving an input signal (312) and for generating from the input signal at least a first drive signal (314), a second drive signal (316), and a third drive signal (318); an outphasing amplifier network (320) coupled to the input drive controller that includes at least a first outphasing amplifier (322) for amplifying the first drive signal and a second outphasing amplifier (326) for amplifying the second drive signal; a peaking amplifier network (330) coupled to the input drive controller that includes at least a first peaking amplifier (332) for amplifying the third drive signal; and a combining network (340) coupled to the outphasing amplifier network and the peaking amplifier network for combining at least the amplified first, second and third drive signals to generate an output signal at a load.
摘要翻译：一种功率放大器，包括：输入驱动控制器（310），用于接收输入信号（312）并且用于从输入信号产生至少第一驱动信号（314），第二驱动信号（316）和第三驱动信号（318）; 耦合到输入驱动控制器的外部放大器网络（320），其包括用于放大第一驱动信号的至少第一外相放大器（322）和用于放大第二驱动信号的第二外相放大器（326）耦合到输入驱动控制器的峰化放大器网络（330），其包括用于放大第三驱动信号的至少第一峰值放大器（332）以及耦合到所述外相放大器网络和所述峰值放大器网络的组合网络（340），用于至少组合放大的第一，第二和第三驱动信号以在负载处产生输出信号。

7. 发明授权

US5675286A Method and apparatus for an improved linear transmitter 失效
标题翻译：改进的线性变送器的方法和装置
公开(公告)号：US5675286A
公开(公告)日：1997-10-07
申请号：US599656
申请日：1996-02-12
申请人： Michael H. Baker , Paul H. Gailus , William J. Turney , Lawrence F. Cygan
发明人： Michael H. Baker , Paul H. Gailus , William J. Turney , Lawrence F. Cygan
IPC分类号： H03F1/32 , H03F1/34 , H03G3/30
CPC分类号： H03G3/3047 , H03F1/3247 , H03F1/3282 , H03F1/345 , H03G3/3042
摘要： An amplifier structure (200) includes a main amplifier loop (203) for efficiently amplifying an input signal at a power amplifier (228) coupled to a load susceptible to impedance variations. The amplifier loop (200) further includes an auxiliary loop (201) coupled to the main loop (201) for simultaneously preventing the power amplifier (228) from operating inefficiently or causing off-channel interference.
摘要翻译：放大器结构（200）包括主放大器环（203），用于有效地放大耦合到容易受阻抗变化的负载的功率放大器（228）的输入信号。放大器回路（200）还包括耦合到主回路（201）的辅助回路（201），用于同时防止功率放大器（228）低效运行或导致离线通道干扰。

8. 发明授权

US5423082A Method for a transmitter to compensate for varying loading without an isolator 失效
标题翻译：发射机的方法，用于补偿没有隔离器的变化负载
公开(公告)号：US5423082A
公开(公告)日：1995-06-06
申请号：US80635
申请日：1993-06-24
申请人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
发明人： Lawrence F. Cygan , Paul H. Gailus , William J. Turney
IPC分类号： H03F1/32 , H03F1/34 , H04B1/04 , H03G3/20
CPC分类号： H03F1/3294 , H03F1/3247 , H03F1/345 , H03F2200/57 , H04B2001/0416 , H04B2001/0433
摘要： A transmitter that includes an amplifying element, an antenna, a gain stage, and a closed loop feedback may compensate for varying antenna loads without an isolator. This may be accomplished by determining the effects of the varying loading on overall loop gain. Knowing the effects, the transmitter adjusts the gain of the gain stage to maintain a constant overall loop gain, thus eliminating the need for an isolator.
摘要翻译：包括放大元件，天线，增益级和闭环反馈的发射机可以在没有隔离器的情况下补偿变化的天线负载。这可以通过确定变化负载对总体环路增益的影响来实现。了解效果，发射机调节增益级的增益，以保持恒定的总体环路增益，从而无需隔离器。

9. 发明授权

US08175553B2 Wireless communication unit, linearised transmitter circuit and method of linearising therein 有权
标题翻译：无线通信单元，线性化发射机电路及其线性化方法
公开(公告)号：US08175553B2
公开(公告)日：2012-05-08
申请号：US11623848
申请日：2007-01-17
申请人： Moshe Ben-Ayun , Paul H. Gailus , Ovadia Grossman , Mark Rozental
发明人： Moshe Ben-Ayun , Paul H. Gailus , Ovadia Grossman , Mark Rozental
IPC分类号： H01Q11/12
CPC分类号： H04B1/0475
摘要： A wireless communication unit includes a linearised transmitter having a forward path and a feedback path, respectively comprising at least one up-mixer and down-mixer, and forming two loops in quadrature. A phase training signal is applied to the at least one down-mixer in the feedback path in an open loop mode of operation to identify a loop phase adjustment to be applied. At least one of the two loops is switched to a closed loop mode of operation and the loop phase adjustment is applied to at least one up-mixer located in the forward path.
摘要翻译：无线通信单元包括具有前向路径和反馈路径的线性化发射机，分别包括至少一个上混频器和下混频器，并且形成正交的两个回路。相位训练信号以开环操作模式施加到反馈路径中的至少一个下混频器，以识别要施加的环路相位调整。两个循环中的至少一个被切换到闭环操作模式，并且循环相位调整被施加到位于前向路径中的至少一个上混频器。

10. 发明授权

US07787565B2 System and method for performing baseband phase shifting in a Cartesian feedback system 有权
标题翻译：在笛卡尔反馈系统中执行基带相移的系统和方法
公开(公告)号：US07787565B2
公开(公告)日：2010-08-31
申请号：US11743746
申请日：2007-05-03
申请人： Joshua E. Dorevitch , John J. Bozeki , Paul H. Gailus , Mark Rozental
发明人： Joshua E. Dorevitch , John J. Bozeki , Paul H. Gailus , Mark Rozental
IPC分类号： H04L1/02 , H04L27/20
CPC分类号： H04L27/364 , H04L2027/0018
摘要： A system and method for performing baseband phase shifting in a Cartesian feedback system includes a forward path for receiving an input baseband signal having two components, and performing up-conversion to output a RF signal; a power amplifier for amplifying the RF signal output from the forward path; and a feedback path for down-converting at least a sample of the output from the power amplifier to a feedback baseband signal comprising two components, and providing the feedback baseband signal to the forward path in order to be summed with the input baseband signal at a summing junction and before the loop filter. The forward path includes a baseband phase shifter for adjusting the baseband signal output from the summing junction in order to compensate for any phase shifts induced in the system.
摘要翻译：用于在笛卡尔反馈系统中执行基带相移的系统和方法包括用于接收具有两个分量的输入基带信号的前向路径，并执行上变频以输出RF信号; 用于放大从前向路径输出的RF信号的功率放大器; 以及反馈路径，用于将来自功率放大器的输出的至少一个采样的至少一个样本降级为包括两个分量的反馈基带信号，并将反馈基带信号提供给前向路径，以便将其与输入基带信号相加求和结点和环路滤波器之前。正向路径包括基带移相器，用于调整从求和结点输出的基带信号，以便补偿系统中引起的任何相移。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式