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. 发明申请

US20180227152A1 MODULATION AGNOSTIC DIGITAL HYBRID MODE POWER AMPLIFIER SYSTEM AND METHOD 审中-公开
公开(公告)号：US20180227152A1
公开(公告)日：2018-08-09
申请号：US15827794
申请日：2017-11-30
申请人： Dali Systems Co. Ltd.
发明人： Wan Jong Kim , Kyoung Joon Cho , Shawn Patrick Stapleton , Ying Xiao
IPC分类号： H04L27/00 , H04L27/36 , H03F1/30 , H03F1/32 , H03F3/08 , H03F3/19 , H03F3/24 , H04W24/02 , H04L25/08 , H04L25/06
CPC分类号： H03F1/304 , H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/087 , H03F3/19 , H03F3/24 , H03F2200/18 , H03F2200/204 , H03F2200/207 , H03F2200/447 , H03F2200/451 , H03F2201/3206 , H03F2201/3209 , H03F2201/3212 , H03F2201/3215 , H03F2201/3224 , H03F2201/3227 , H04L25/067 , H04L25/08 , H04L27/0008 , H04L27/368 , H04W24/02
摘要： A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.

2. 发明申请

US20170310512A1 Selective Power Amplifier 审中-公开
公开(公告)号：US20170310512A1
公开(公告)日：2017-10-26
申请号：US15625477
申请日：2017-06-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fenghao Mu , Bengt Lindoff
IPC分类号： H04L27/00 , H03F1/02 , H03F3/24 , H04W52/02 , H03F1/32 , H03F3/19
CPC分类号： H04L27/0008 , H03F1/02 , H03F1/0211 , H03F1/0222 , H03F1/0227 , H03F1/3282 , H03F3/19 , H03F3/217 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/336 , H03F2200/451 , H03F2201/3212 , H04B1/04 , H04B1/406 , H04B2001/045 , H04J11/00 , H04L1/203 , H04L27/362 , H04L43/16 , H04L45/745 , H04W52/0209 , H04W52/52 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/0453 , H04W72/0473 , H04W88/12 , Y02D70/1222 , Y02D70/1262 , Y02D70/40
摘要： A transmitter comprising a power amplifier, a phase modulator, a switched DC-DC converter, all operating in dual mode, and a controller is disclosed. The power amplifier is arranged to selectively operate either in a first mode or in a second mode, wherein the first mode is a linear mode and the second mode is a non-linear mode in order to save power with least increasing cost in hardware. The transmitter is adapted to operate at different allocated bandwidths, for different radio standards while keeping minimum power consumption governed by the controller. A transceiver, a communication device, a method and a computer program are also disclosed.

3. 发明授权

US09760338B2 Direct digital synthesis of signals using maximum likelihood bit-stream encoding 有权
公开(公告)号：US09760338B2
公开(公告)日：2017-09-12
申请号：US15187651
申请日：2016-06-20
申请人： Intel Corporation
发明人： Kameran Azadet
IPC分类号： G06F5/01 , G06F17/15 , H03H17/06 , H04B1/04 , H04L1/00 , H04L27/233 , H04B1/62 , G06F9/30 , H04L25/02 , H04L25/03 , H03M3/00 , H03F1/02 , H03F1/32 , H03F3/189 , H03F3/24 , H04L25/49 , H04B1/00
CPC分类号： G06F9/3001 , G06F5/01 , G06F9/30036 , G06F17/15 , H03F1/0288 , H03F1/3241 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H03H17/06 , H03M3/30 , H04B1/0003 , H04B1/0475 , H04B1/62 , H04B2001/0408 , H04L1/0054 , H04L25/02 , H04L25/03 , H04L25/03178 , H04L25/03216 , H04L25/4917 , H04L27/2334
摘要： Methods and apparatus are provided for direct synthesis of RF signals using maximum likelihood sequence estimation. An RF digital RF input signal is synthesized by performing maximum likelihood sequence estimation on the digital RF input signal to produce a digital stream, such that after filtering by a prototype filter the produced digital stream produces a substantially minimum error. The substantially minimum error comprises a difference between a digital output of the prototype filter and the digital RF input signal. The digital stream is substantially equal to the input digital RF signal. The digital stream can be applied to an analog restitution filter, and the output of the analog restitution filter comprises an analog RF signal that approximates the digital RF input signal.

4. 发明授权

US09608691B2 Fiber-optic node with forward data content driven power consumption 有权
公开(公告)号：US09608691B2
公开(公告)日：2017-03-28
申请号：US14463011
申请日：2014-08-19
申请人： ARRIS Enterprises, Inc.
发明人： Marcel F. Schemmann , Zoran Maricevic
IPC分类号： H03F1/02 , H04B3/10 , H03F1/32 , H04L25/06 , H04B7/155 , H03F3/189 , H03F3/20 , H04B10/2575 , H04N21/61 , G02F1/01
CPC分类号： H03F1/0211 , G02F1/0123 , G05F1/563 , G05F1/565 , H03F1/02 , H03F1/0233 , H03F1/3241 , H03F3/189 , H03F3/20 , H03F3/24 , H03F2200/102 , H03F2201/3212 , H03F2201/3215 , H03G3/004 , H04B3/10 , H04B7/15535 , H04B10/25751 , H04B2001/0416 , H04B2001/045 , H04L25/06 , H04N21/4436 , H04N21/6118 , H04N21/6168 , H04N21/63
摘要： Methods and systems for modulating an amplifier power supply to efficiently attain amplified RF output power with much lower power dissipation than existing amplifiers. In a cable television (CATV) network, a processor receives a signal to be amplified by an amplifier at a location remote from the processor. A bias point of the amplifier may be variably modulated based on peaks of an input signal to reduce amplifier dissipation.

5. 发明授权

US09529567B2 Digital processor having instruction set with complex exponential non-linear function 有权
标题翻译：具有指令集的数字处理器具有复数指数非线性函数
公开(公告)号：US09529567B2
公开(公告)日：2016-12-27
申请号：US13701397
申请日：2012-10-26
申请人： Intel Corporation
发明人： Kameran Azadet , Albert Molina , Joseph H. Othmer , Parakalan Venkataraghavan , Meng-Lin Yu , Joseph Williams
IPC分类号： G06F9/30 , G06F5/01 , H04B1/04 , H04L1/00 , H04L27/233 , H04B1/62 , H04L25/02 , H04L25/03 , H03M3/00 , H03F1/02 , H03F1/32 , H03F3/189 , H03F3/24 , H04B1/00
CPC分类号： G06F9/3001 , G06F5/01 , G06F9/30036 , G06F17/15 , H03F1/0288 , H03F1/3241 , H03F1/3258 , H03F3/189 , H03F3/24 , H03F2200/336 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H03H17/06 , H03M3/30 , H04B1/0003 , H04B1/0475 , H04B1/62 , H04B2001/0408 , H04L1/0054 , H04L25/02 , H04L25/03 , H04L25/03178 , H04L25/03216 , H04L25/4917 , H04L27/2334
摘要： A digital processor is provided having an instruction set with a complex exponential function. The digital processor evaluates a complex exponential function for an input value, x, by obtaining a complex exponential software instruction having the input value, x, as an input; and in response to the complex exponential software instruction: invoking at least one complex exponential functional unit that implements complex exponential software instructions to apply the complex exponential function to the input value, x; and generating an output corresponding to the complex exponential of the input value, x. A complex exponential function for an input value, x, can be evaluated by wrapping the input value to maintain a given range; computing a coarse approximation angle using a look-up table; scaling the coarse approximation angle to obtain an angle from 0 to θ; and computing a fine corrective value using a polynomial approximation.
摘要翻译：提供了具有具有复指数函数的指令集的数字处理器。数字处理器通过获得具有输入值x的复数指数软件指令作为输入来评估输入值x的复指数函数; 并且响应于复杂的指数软件指令：调用至少一个复数指数函数单元，其执行复指数软件指令以将复指数函数应用于输入值x; 并产生与输入值x的复指数相对应的输出。输入值x的复数指数函数可以通过包装输入值来保持给定范围来评估; 使用查找表计算粗近似角度; 缩放粗近似角度以获得从0到θ的角度; 以及使用多项式近似计算精细校正值。

6. 发明授权

US09515614B2 Amplifier device and wireless communication device 有权
标题翻译：放大器和无线通讯装置
公开(公告)号：US09515614B2
公开(公告)日：2016-12-06
申请号：US14770936
申请日：2014-09-12
申请人： SUMITOMO ELECTRIC INDUSTRIES, LTD.
发明人： Eiji Mochida
IPC分类号： H03F1/26 , H03F1/32 , H03F3/24 , H03F3/19
CPC分类号： H03F1/32 , H03F1/3247 , H03F1/3258 , H03F3/19 , H03F3/245 , H03F2200/105 , H03F2200/207 , H03F2200/336 , H03F2200/451 , H03F2201/3212
摘要： An amplifier device 1 includes: a distortion compensation section 3 that performs distortion compensation for an input signal x to an amplifier 2 by digital signal processing; and a separation section 9 that separates an output signal from the amplifier 2 into an I signal as an analog signal component including phase information of the output signal and an analog signal component including power information of the output signal. The distortion compensation section 3 performs distortion compensation for the amplifier 2, based on 1-bit signals obtained by expressing, in 1 bit, the analog I signal and the analog signal component including the power information of the output signal, respectively.
摘要翻译：放大器装置1包括：失真补偿部3，其通过数字信号处理对放大器2的输入信号x进行失真补偿; 以及分离部分9，其将来自放大器2的输出信号分离为I信号，作为包括输出信号的相位信息的模拟信号分量和包括输出信号的功率信息的模拟信号分量。失真补偿部分3基于通过在1比特中表示模拟I信号和包括输出信号的功率信息的模拟信号分量获得的1比特信号来对放大器2执行失真补偿。

7. 发明申请

US20160352290A1 CIRCUITS FOR LINEARIZING AN OUTPUT SIGNAL OF A NON-LINEAR COMPONENT AND RELATED DEVICES AND METHODS 有权
标题翻译：用于线性化非线性组件的输出信号的电路及相关设备和方法
公开(公告)号：US20160352290A1
公开(公告)日：2016-12-01
申请号：US14403182
申请日：2014-11-22
申请人： Telefonaktiebolaget L M Ericssson (publ)
发明人： Bjorn Gavert , Tony Gustafsson
IPC分类号： H03F1/32 , H04B1/40 , H03F3/24
CPC分类号： H03F1/3241 , H03F1/3247 , H03F1/3258 , H03F3/195 , H03F3/24 , H03F3/245 , H03F2201/3209 , H03F2201/3212 , H03F2201/3224 , H03F2201/3233 , H04B1/40 , H04L25/03343 , H04L27/368
摘要： This disclosure provides a circuit for linearizing an output signal Sout produced by a non-linear component based on an input signal x(n). The circuit comprises a primary pre-distorter module configured to generate a pre-distorted signal y(n) based on the input signal x(n) and a primary pre-distortion function parameterized by a pre-distortion parameter λ and to feed the pre-distorted signal y(n) to the non-linear component. The circuit comprises an estimation module. The estimation module is configured to receive samples z(n) of the output signal Sout, and to determine the pre-distortion parameter λ. The estimation module comprises a secondary pre-distorter module configured to generate a secondary pre-distorter output signal r(n) based on a secondary pre-distortion function and the samples z(n) of the output signal Sout. The secondary pre-distorter module is configured to determine the pre-distortion parameter λ based on a previously determined pre-distortion parameter stored on a data storage, the secondary pre-distorter output signal r(n) and the pre-distorted signal y(n) provided by the primary pre-distorted module. The determining comprises correlating the input signal x(n) with an error signal between the pre-distorted signal y(n) and the secondary pre-distorter output signal r(n).
摘要翻译：本公开提供了一种用于基于输入信号x（n）线性化由非线性分量产生的输出信号Sout的电路。该电路包括：初级预失真器模块，被配置为基于输入信号x（n）和由预失真参数λ参数化的初级预失真函数产生预失真信号y（n）失真信号y（n）到非线性分量。电路包括估计模块。估计模块被配置为接收输出信号Sout的样本z（n），并且确定预失真参数λ。估计模块包括次级预失真器模块，其被配置为基于次级预失真功能和输出信号Sout的样本z（n）产生二次预失真器输出信号r（n）。次级预失真器模块被配置为基于存储在数据存储器上的先前确定的预失真参数来确定预失真参数λ，次级预失真器输出信号r（n）和预失真信号y（ n）由初级预失真模块提供。确定包括将输入信号x（n）与预失真信号y（n）和次预失真器输出信号r（n）之间的误差信号进行相关。

8. 发明授权

US09479123B2 Method and system for linearizing an amplifier using transistor-level dynamic feedback 有权
标题翻译：使用晶体管级动态反馈线性化放大器的方法和系统
公开(公告)号：US09479123B2
公开(公告)日：2016-10-25
申请号：US14575373
申请日：2014-12-18
申请人： Ali Mohamed Darwish
发明人： Ali Mohamed Darwish
IPC分类号： H03F1/34 , H03F1/32 , H03F1/56 , H03F3/193 , H03F3/24 , H03G1/00 , H03G3/30
CPC分类号： H03F1/3247 , H03F1/3288 , H03F1/56 , H03F3/193 , H03F3/245 , H03F2200/192 , H03F2200/204 , H03F2200/222 , H03F2200/318 , H03F2200/387 , H03F2200/411 , H03F2201/3212 , H03F2201/3233 , H03G1/0035 , H03G3/3036
摘要： The present disclosure describes a method and system for linearizing an amplifier using transistor-level dynamic feedback. The method and system enables nonlinear amplifiers to exhibit linear performance using one or more of gain control elements and phase shifters in the feedback path. The disclosed method and system may also allow amplifiers to act as a pre-distorter or a frequency/gain programmable amplifier.
摘要翻译：本公开描述了一种用于使用晶体管级动态反馈线性化放大器的方法和系统。该方法和系统使得非线性放大器能够使用反馈路径中的一个或多个增益控制元件和移相器来呈现线性性能。所公开的方法和系统还可以允许放大器用作预失真器或频率/增益可编程放大器。

9. 发明申请

US20160302164A1 Selective Power Amplifier 有权
公开(公告)号：US20160302164A1
公开(公告)日：2016-10-13
申请号：US15184550
申请日：2016-06-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Fenghao Mu , Bengt Lindoff
IPC分类号： H04W52/52 , H04L12/741 , H04L12/26 , H03F3/24 , H04J11/00 , H04L1/20 , H03F1/02 , H03F1/32 , H04W72/04 , H04L27/36
CPC分类号： H04L27/0008 , H03F1/02 , H03F1/0211 , H03F1/0222 , H03F1/0227 , H03F1/3282 , H03F3/19 , H03F3/217 , H03F3/24 , H03F3/245 , H03F2200/102 , H03F2200/336 , H03F2200/451 , H03F2201/3212 , H04B1/04 , H04B1/406 , H04B2001/045 , H04J11/00 , H04L1/203 , H04L27/362 , H04L43/16 , H04L45/745 , H04W52/0209 , H04W52/52 , H04W72/0406 , H04W72/0413 , H04W72/042 , H04W72/0453 , H04W72/0473 , H04W88/12 , Y02D70/1222 , Y02D70/1262 , Y02D70/40
摘要： A transmitter comprising a power amplifier, a phase modulator, a switched DC-DC converter, all operating in dual mode, and a controller is disclosed. The power amplifier is arranged to selectively operate either in a first mode or in a second mode, wherein the first mode is a linear mode and the second mode is a non-linear mode in order to save power with least increasing cost in hardware. The transmitter is adapted to operate at different allocated bandwidths, for different radio standards while keeping minimum power consumption governed by the controller. A transceiver, a communication device, a method and a computer program are also disclosed.

10. 发明申请

US20160218761A1 A RECEIVER WITH AN AMPLIFIER LINEARIZER 有权
标题翻译：具有放大器线性化的接收器
公开(公告)号：US20160218761A1
公开(公告)日：2016-07-28
申请号：US14913459
申请日：2013-09-06
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
发明人： Sima Shahsavari
IPC分类号： H04B1/16 , H04B1/10 , H03F1/32
CPC分类号： H04B1/16 , H03F1/32 , H03F1/3247 , H03F2201/3212 , H04B1/1027
摘要： A receiver for signals, comprising an amplifier arranged to receive and amplify the signals received by the receiver. The receiver also comprises a linearizer arranged to linearize the amplitude value of the output signals from the amplifier. In the receiver, the linearizer is arranged to perform said linearizing by means of determining actual and desired values of a statistical function for the amplitude values of the output signals from the amplifier and to replace the amplitude values of the output signals from the amplifier with amplitude values which have the same desired values of the statistical function. In embodiments of the receiver, the statistical function is the cumulative distribution function.
摘要翻译：一种用于信号的接收器，包括放大器，用于接收和放大由接收器接收的信号。接收机还包括线性化器，其被布置成线性化来自放大器的输出信号的振幅值。在接收机中，线性化器被配置为通过确定来自放大器的输出信号的幅度值的统计函数的实际和期望值来执行所述线性化，并且用幅度替换来自放大器的输出信号的振幅值具有统计功能的相同期望值的值。在接收机的实施例中，统计功能是累积分布函数。

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