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51. 发明申请

US20060017500A1 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US20060017500A1
公开(公告)日：2006-01-26
申请号：US10501392
申请日：2002-12-13
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F3/24 , H03F1/0205 , H03F1/0288 , H03F1/0294 , H03F1/32 , H03F2200/423 , H03F2200/451
摘要： A composite power amplifier includes a first and a second power amplifier connected to an input signal over an input network and to a load over an output network. The output network includes phase shifting elements for generating different phase shifts from each power amplifier output to the common load. The input network includes means for driving both power amplifiers to produce first output current components having an amplitude that increases linearly with increasing output signal amplitude below a transition point (T.P) and decreases motonically with increasing output signal amplitude above said point, and second output current components having an amplitude that increases linearly with increasing output signal amplitude both below and above the transition point.
摘要翻译：复合功率放大器包括通过输入网络连接到输入信号的第一和第二功率放大器以及输出网络上的负载。输出网络包括用于从每个功率放大器输出到公共负载产生不同相移的相移元件。输入网络包括用于驱动两个功率放大器以产生具有随着输出信号幅度低于转变点（TP）的增加而线性增加的幅度的第一输出电流分量的装置，并且随着输出信号幅度高于所述点而增加运动，并且第二输出电流具有随着输出信号幅度的增加而线性增加的振幅在低于和高于转换点的分量。

52. 发明授权

US06973135B1 Reduced delay implementation of fourier transform based channelizers and de-channelizers 失效
标题翻译：基于傅立叶变换的信道解码器和去信道化器的减少延迟实现
公开(公告)号：US06973135B1
公开(公告)日：2005-12-06
申请号：US09610612
申请日：2000-07-05
申请人： Scott Leyonhjelm , Richard Hellberg , Joakim Eriksson
发明人： Scott Leyonhjelm , Richard Hellberg , Joakim Eriksson
IPC分类号： H03H17/00 , H03H17/02 , H04B7/08 , H04B7/26 , H04J99/00 , H04L23/02 , H04B7/216
CPC分类号： H03H17/0213 , H03H17/0266
摘要： In a wireless telecommunications system, data processing delays associated with digital channelization and de-channelization may be reduced through the use of a technique that involves processing data blocks in conjunction with the transformation of the data blocks by a large, Fast Fourier Transform (FFT) algorithm, and makes use of multiple transmission and reception branches. In accordance with this technique, the processing delays associated with the FFT algorithm are minimized, but not to the detriment of other important channelizer/de-channelizer design characteristics, such as power consumption, die area and computational complexity.
摘要翻译：在无线电信系统中，与数字信道化和去信道化相关联的数据处理延迟可以通过使用涉及通过大的快速傅里叶变换（FFT）的数据块的转换来处理数据块的技术来减少，算法，并利用多个发送和接收分支。根据该技术，与FFT算法相关联的处理延迟最小化，但不会损害其他重要的信道化/去信道化器设计特性，例如功耗，管芯面积和计算复杂度。

53. 发明申请

US20050248401A1 Composite power amplifier 有权
标题翻译：复合功率放大器
公开(公告)号：US20050248401A1
公开(公告)日：2005-11-10
申请号：US10525957
申请日：2002-09-06
申请人： Richard Hellberg , Mats Klingberg
发明人： Richard Hellberg , Mats Klingberg
IPC分类号： H03F1/02 , H03F3/24 , H03F3/60 , H03F3/68
CPC分类号： H03F3/24 , H03F1/0294 , H03F3/602 , H03F2200/423 , H03F2200/451
摘要： A composite amplifier comprises several Chireix pairs (PAII, PAI2; PA21, PA22) of power amplifiers connected to a common load. Means (21) are provided for driving each Chireix pair by drive signals having amplitude dependent phase over at least a part of the dynamic range of the composite amplifier . These parts are preferably different for different pairs.
摘要翻译：复合放大器包括连接到公共负载的功率放大器的几个Chireix对（PAII，PAI 2; PA 21，PA 22）。提供装置（21），用于通过在复合放大器的动态范围的至少一部分上具有幅度相关相位的驱动信号驱动每个Chireix对。对于不同的对，这些部件优选是不同的。

54. 发明授权

US06266687B1 Flexibility enhancement to the modified fast convolution algorithm 有权
标题翻译：改进的快速卷积算法的灵活性增强
公开(公告)号：US06266687B1
公开(公告)日：2001-07-24
申请号：US09156630
申请日：1998-09-18
申请人： Scott Leyonhjelm , Richard Hellberg
发明人： Scott Leyonhjelm , Richard Hellberg
IPC分类号： G06F1715
CPC分类号： H04L5/06
摘要： The present invention increases the flexibility of the modified fast convolution algorithm. In a first exemplary embodiment of the present invention, a block compensator is inserted into the channelizer/de-channelizer processing chain for multiplying data in the processing chain with compensation constants. The block compensator corrects the phase continuity problem associated with the modified fast convolution algorithm to thereby allow unrestricted filter placement. In a second exemplary embodiment, the phase continuity problem is corrected by combining a frequency translation in the frequency domain with a compensatory frequency translation in the time domain. Both techniques increase the flexibility of the modified fast convolution algorithm whilst only marginally increasing computational requirements.
摘要翻译：本发明增加了改进的快速卷积算法的灵活性。在本发明的第一示例性实施例中，块补偿器被插入到通道化器/去通道化器处理链中，用于将处理链中的数据与补偿常数相乘。块补偿器校正与修改的快速卷积算法相关联的相位连续性问题，从而允许无限制的滤波器放置。在第二示例性实施例中，通过将频域中的频率转换与时域中的补偿频率变换组合来校正相位连续性问题。这两种技术增加了修改后的快速卷积算法的灵活性，同时仅略微提高了计算量。

55. 发明授权

US08442460B2 Method for compensating signal distortions in composite amplifiers 有权
标题翻译：用于补偿复合放大器信号失真的方法
公开(公告)号：US08442460B2
公开(公告)日：2013-05-14
申请号：US12296710
申请日：2006-04-10
申请人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
发明人： Tony Fonden , Richard Hellberg , Mats Klingberg , Spendim Dalipi
IPC分类号： H04B1/04
CPC分类号： H03F1/26 , H03F1/0288 , H03F1/0294 , H03F1/3247 , H03F1/3252 , H03F1/3294 , H03F2200/228 , H03F2200/321 , H03F2200/336 , H03F2200/393 , H03F2200/78
摘要： A method for compensating signal distortions in multiple transmitting branches (3, 5; 43, 45, 46) entering a composite amplifier (1; 1′). According to the invention the method comprises the steps of: —providing (S1) one or more input signals (x) to the composite amplifier. —observing (S2) an output signal (z) from the composite amplifier (1; 1′) for each provided input signal; —deriving (S5) an error in each output signal (z) by comparing the output signal with an ideal output signal, said error being caused by said signal distortions; —deriving (S11) the individual contribution from each transmitting branch (3, 5; 43,45,46) to the error by utilizing a composite amplifier model, said composite amplifier model comprising information about the contribution from each constituent amplifier (23, 25; 103a,103b,103c) to the output signal for each provided input signal: —compensating the signal distortions in the transmitting branches (3, 5; 43,45,46) accordingly.
摘要翻译：一种用于补偿进入复合放大器（1; 1'）的多个发射分支（3,5; 43,45,46）中的信号失真的方法。根据本发明，该方法包括以下步骤：向复合放大器提供（S1）一个或多个输入信号（x）。对于每个提供的输入信号，从复合放大器（1; 1'）观察（S2）输出信号（z）通过将输出信号与理想输出信号进行比较，从而（S5）每个输出信号（z）中的误差，所述误差由所述信号失真引起; （S11）通过利用复合放大器模型将来自每个发射分支（3,5; 43,45,46）的各个贡献归因于所述误差，所述复合放大器模型包括关于来自每个组成放大器（23,25）的贡献的信息 ; 103a，103b，103c）输出到所提供的输入信号的输出信号： - 相应地补偿发送分支（3,5; 43,45,46）中的信号失真。

56. 发明授权

US08441321B2 Multi-stage amplifier 有权
标题翻译：多级放大器
公开(公告)号：US08441321B2
公开(公告)日：2013-05-14
申请号：US13132241
申请日：2008-12-09
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F1/0294 , H03F3/602 , H03F2200/451
摘要： The disclosed multi-stage amplifier (200) comprises several amplifier stages (201-203) which, together with an output network, form different branches. A first branch comprises a first and a second amplifier (201, 202) having their outputs connected to each other via a quarter-wave transmission line. The first branch is connected to a load via a first offset-transmission-line (0.1). A second branch comprises a third amplifier stage (203) and a second offset-transmission line (0.22) which are also connected to the load.
摘要翻译：所公开的多级放大器（200）包括多个放大器级（201-203），其与输出网络一起形成不同的分支。第一分支包括通过四分之一波长传输线彼此连接的第一和第二放大器（201,202）。第一分支经由第一偏移传输线（0.1）连接到负载。第二分支包括也连接到负载的第三放大器级（203）和第二偏移传输线（0.22）。

57. 发明授权

US08384475B2 Composite amplifier, a radio terminal and a method for improving the efficiency of the composite amplifier 有权
标题翻译：复合放大器，无线电终端以及提高复合放大器效率的方法
公开(公告)号：US08384475B2
公开(公告)日：2013-02-26
申请号：US12741432
申请日：2007-11-19
申请人： Ulf Gustavsson , Richard Hellberg
发明人： Ulf Gustavsson , Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F3/602 , H03F1/0288 , H03F1/0294 , H03F1/56 , H03F3/191 , H03F3/24 , H03F2200/378 , H03F2200/387 , H03F2200/423 , H03F2200/451 , H03H11/28 , H04B1/0458
摘要： The present invention relates to a composite amplifier (3, 4, 120), a radio terminal (100) including such composite amplifier and to a method for improving the efficiency of such composite amplifier in particular. The composite amplifier according to embodiments of the present invention is arranged to be connected to an output combiner network (43, 53, 63, 73, 83) and to a load (49, 130). the output combiner network comprising at least one dynamically tuneable reactance (47, 48). The instantaneous efficiency of the composite amplifier (3, 4, 120) is increased by tuning the impedances/admittances seen by each of said at least two power amplifiers (41, 42, 71, 72). The amplifiers being differently driven and they may further be part of a Chireix outphasing system or a pair of a Doherty amplifier.
摘要翻译：复合放大器技术领域本发明涉及复合放大器（3,4,120），包括这种复合放大器的无线电终端（100）以及特别是提高这种复合放大器的效率的方法。根据本发明的实施例的复合放大器被布置成连接到输出组合器网络（43,43,63,73,83）和负载（49,130）。输出组合器网络包括至少一个可动态调谐电抗（47,48）。通过调整所述至少两个功率放大器（41,42,71,72）中的每个功率放大器所看到的阻抗/导纳来增加复合放大器（3,4,120）的瞬时效率。放大器的驱动方式不同，它们可能还可以是Chireix外置系统或Doherty放大器的一部分。

58. 发明申请

US20110254629A1 MULTI STAGE AMPLIFIER 有权
标题翻译：多级放大器
公开(公告)号：US20110254629A1
公开(公告)日：2011-10-20
申请号：US13141636
申请日：2008-12-22
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0294 , H03F3/602
摘要： A multi-stage amplifier includes a first, a second, and a third sub-amplifier, each with respective input and output ports. The multi-stage amplifier also includes a common output port. The output port of the second sub-amplifier is connected to the output port of the first sub-amplifier as well as to the common output port of the multi-stage amplifier, and the output port of the third sub-amplifier is connected to the common output port. The electrical lengths of the connections from the second sub-amplifier's output port both to the first amplifier's output port and to the common output port are longer or shorter than one quarter of a wavelength (λ) of the frequency for which the multi-stage amplifier is intended to operate.
摘要翻译：多级放大器包括具有各自的输入和输出端口的第一，第二和第三子放大器。多级放大器还包括一个公共输出端口。第二子放大器的输出端口连接到第一子放大器的输出端口以及多级放大器的公共输出端口，并且第三子放大器的输出端口连接到公共输出端口。从第二子放大器的输出端口到第一放大器的输出端口和公共输出端口的连接的电长度比多级放大器的频率的波长（λ）的四分之一长或短意图操作。

59. 发明申请

US20110254628A1 Multi-Stage Amplifier 有权
标题翻译：多级放大器
公开(公告)号：US20110254628A1
公开(公告)日：2011-10-20
申请号：US13132241
申请日：2008-12-09
申请人： Richard Hellberg
发明人： Richard Hellberg
IPC分类号： H03F3/68
CPC分类号： H03F1/0288 , H03F1/0294 , H03F3/602 , H03F2200/451
摘要： The disclosed multi-stage amplifier (200) comprises several amplifier stages (201-203) which, together with an output network, form different branches. A first branch comprises a first and a second amplifier (201, 202) having their outputs connected to each other via a quarter-wave transmission line. The first branch is connected to a load via a first offset-transmission-line (0.1). A second branch comprises a third amplifier stage (203) and a second offset-transmission line (0.22) which are also connected to the load.
摘要翻译：所公开的多级放大器（200）包括多个放大器级（201-203），其与输出网络一起形成不同的分支。第一分支包括通过四分之一波长传输线彼此连接的第一和第二放大器（201,202）。第一分支经由第一偏移传输线（0.1）连接到负载。第二分支包括也连接到负载的第三放大器级（203）和第二偏移传输线（0.22）。

60. 发明授权

US07881683B2 Generation of modulated radio frequency signals 有权
标题翻译：生成调制射频信号
公开(公告)号：US07881683B2
公开(公告)日：2011-02-01
申请号：US11722257
申请日：2004-12-21
申请人： Richard Hellberg , Tony Fonden
发明人： Richard Hellberg , Tony Fonden
IPC分类号： H04B1/04
CPC分类号： H03F1/32 , H03F1/0205 , H03F1/0222 , H03F2200/102
摘要： RF signal generators (1) are disclosed, having an amplitude-modulated amplifier (80) whose supply voltage (70) is a signal non-linearly filtered (33) dependent on a signal (30) being representative to an envelope signal of a desired output RF signal (81). The non-linear filtering (33) is performed preferably using an envelope-dependent boundary. An input RF signal (65) to the amplifier (80) is amplified using the supply voltage (70) to produce the desired output RF signal (81). The present invention also presents methods for driving such generators (1).
摘要翻译：公开了RF信号发生器（1），其具有幅度调制放大器（80），其幅度调制放大器（80）的电源电压（70）是取决于信号（30）的非线性滤波信号（30），该信号代表期望的输出RF信号（81）。非线性滤波（33）优选地使用包络依赖边界进行。使用电源电压（70）放大到放大器（80）的输入RF信号（65），以产生期望的输出RF信号（81）。本发明还提供了用于驱动这种发电机（1）的方法。

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