公开(公告)号：US07590190B2

公开(公告)日：2009-09-15

申请号：US11214191

申请日：2005-08-29

申请人： Christian G. Luke ,  Ian Johnson ,  Mark Cope ,  Adrian Mansell ,  Steven Andrew Wood

发明人： Christian G. Luke ,  Ian Johnson ,  Mark Cope ,  Adrian Mansell ,  Steven Andrew Wood

IPC分类号： H04K1/02

CPC分类号： H04L27/3809

摘要： A system and method for controlling the gain in the forward signal path of a digital predistortion linearizer is disclosed. The loop gain of the predistortion system is driven to unity, where a separately controlled constant-gain observation path allows accurate gain control of the forward path. This is divided into digital gain from the predistortion function and analog gain from a Voltage Variable Attenuator (VVA) in the transmitter. The invention balances the distribution between these two domains in order to maximize dynamic range and minimize noise in the forward signal path. In order to distribute the forward path gain accurately, the characteristic of the VVA must be well known. Since these devices tend to be non-linear, with variable characteristic over temperature and batch, the invention compensates for this non-linear behavior by tracking the varying transfer characteristic of the VVA, giving a predictable local characteristic. Another aspect of the disclosed invention is the ability to operate with very low transmit power and loop gain levels, allowing accurate gain control during such scenarios as cell initialization, that require operation over a wide dynamic range.

摘要翻译： 公开了一种用于控制数字预失真线性化电路的前向信号路径中的增益的系统和方法。 预失真系统的环路增益被驱动为单位，其中单独控制的恒定增益观测路径允许正向路径的精确增益控制。 这被分为来自预失真功能的数字增益和发射机中的电压可变衰减器（VVA）的模拟增益。 本发明平衡了这两个域之间的分布，以便使动态范围最大化并使正向信号路径中的噪声最小化。 为了准确地分配正向路径增益，VVA的特性必须是众所周知的。 由于这些装置倾向于非线性，具有温度和批次可变特性，本发明通过跟踪VVA的变化传递特性来补偿该非线性行为，从而给出可预测的局部特性。 所公开的发明的另一方面是以非常低的发射功率和环路增益水平进行操作的能力，从而允许在需要在宽动态范围上操作的诸如小区初始化的情况下的精确增益控制。

公开(公告)号：US07197087B2

公开(公告)日：2007-03-27

申请号：US11175508

申请日：2005-07-06

申请人： Christian G. Luke ,  Ian Johnson ,  Steven Andrew Wood

发明人： Christian G. Luke ,  Ian Johnson ,  Steven Andrew Wood

IPC分类号： H04L27/20 ,  H04L25/49

CPC分类号： H04L27/364 ,  H04L7/0029 ,  H04L7/007 ,  H04L7/0091

摘要： A system and method for compensating for the time delay between the in-phase I and the quadrature Q paths of a digitally modulated transmitter incorporating an analog quadrature modulator is disclosed. The time delay between the in-phase I and the quadrature Q paths is computed and used to calibrate a set of interpolation filters in the forward path that compensate for this delay, reducing the frequency dependent degradation in performance of the analog quadrature modulator. The disclosed system and method provides improved compensation of gain, phase and DC offsets in the analog quadrature modulator over a broader bandwidth. Fractional delay interpolation filters may be used to estimate the delay between the in-phase and quadrature paths. This eliminates the need for a factory calibration procedure, speeding up manufacture and reducing costs.

摘要翻译： 公开了一种用于补偿包含模拟正交调制器的数字调制发射机的同相I和正交Q路径之间的时间延迟的系统和方法。 计算同相I和正交Q路径之间的时间延迟，并用于校准正向通路中的一组补偿该延迟的内插滤波器，从而减少模拟正交调制器性能的频率依赖性降低。 所公开的系统和方法在更宽的带宽上提供模拟正交调制器中的增益，相位和DC偏移的改进的补偿。 分数延迟插值滤波器可以用于估计同相和正交路径之间的延迟。 这消除了对工厂校准程序的需求，加速制造和降低成本。

公开(公告)号：US20060200337A1

公开(公告)日：2006-09-07

申请号：US11072799

申请日：2005-03-04

申请人： Domenic Cipollone ,  Ian Johnson ,  Bradley Music ,  Mari Broman Olsen ,  Rene Valdes

发明人： Domenic Cipollone ,  Ian Johnson ,  Bradley Music ,  Mari Broman Olsen ,  Rene Valdes

IPC分类号： G06F17/28

CPC分类号： G06F17/2755 ,  G06F17/2735

摘要： The present invention provides a lexicon development tool which allows an author to first define templates which define morphological properties of a class of words and then assign words in an input word list to correct templates. The present invention can be used to automatically match a template to an input word or the words can be matched to templates manually. In addition, the present invention can provide a wide variety of different processing components to sort or otherwise process an input word list and to test and export a lexicon, once it has been authored. The tool can provide an authoring environment to describe the lexical data of a wide variety of languages.

摘要翻译： 本发明提供一种词典开发工具，其允许作者首先定义限定一类词的形态特性的模板，然后在输入单词列表中分配单词以校正模板。 本发明可以用于自动地将模板匹配到输入单词，或者可以将单词手动匹配到模板。 此外，本发明可以提供各种不同的处理组件，以便对输入单词列表进行排序或以其它方式处理，并且一旦已经创作就可以测试和导出词典。 该工具可以提供创作环境来描述各种语言的词汇数据。

公开(公告)号：US20060187907A1

公开(公告)日：2006-08-24

申请号：US10546923

申请日：2004-03-01

申请人： Robert Kinsman ,  Ian McCarthy ,  Ian Johnson

发明人： Robert Kinsman ,  Ian McCarthy ,  Ian Johnson

IPC分类号： H04L12/50

CPC分类号： H04L49/101 ,  H04L49/10 ,  H04L49/1523 ,  H04L49/1538 ,  H04L49/254 ,  H04L49/3027 ,  H04L49/3072 ,  H04L49/503 ,  H04L49/506

摘要： A method and apparatus (1) is disclosed for switching data packets. A data packet is received from an input interface device (7) at one of a plurality of initial input ports (6). The data packet is divided into plural smaller data fragments. Each data fragment is passed to a respective one of a plurality of slices of an input port (3) of a core switch (2). The data fragments are switched using the core switch (2) so as to pass each data fragment to a selected respective one of a plurality of slices of an output port (3) of the core switch (2). The data fragments are then passed to a selected one of a plurality of ultimate output ports (5′). The data fragments are assembled to reform the data packet, and the reformed data packet is transmitted to an output interface device (7) connected to said selected one of a plurality of ultimate output ports (5′).

摘要翻译： 公开了一种用于切换数据分组的方法和装置（1）。 在多个初始输入端口（6）中的一个处从输入接口设备（7）接收数据分组。 数据包被分成多个较小的数据片段。 每个数据片段被传递到核心交换机（2）的输入端口（3）的多个片段中的相应一个片段。 使用核心交换机（2）切换数据片段，以便将每个数据片段传递到核心交换机（2）的输出端口（3）的多个片段中的选定的相应一个片段。 然后将数据片段传递到多个最终输出端口（5'）中选定的一个。 数据片段被组合以重新构成数据包，并且重整的数据包被发送到连接到多个最终输出端口（5'）中的所选择的一个的输出接口设备（7）。

公开(公告)号：US20060058239A1

公开(公告)日：2006-03-16

申请号：US11228458

申请日：2005-09-19

申请人： Ian Johnson ,  Geoffrey Goldspink

发明人： Ian Johnson ,  Geoffrey Goldspink

IPC分类号： A61K48/00 ,  A61K38/30

CPC分类号： C07K14/65 ,  A61K38/30 ,  A61K48/00 ,  Y02A50/465 ,  A61K2300/00

摘要： The invention relates to the treatment of neurological disorders with the Insulin-like Growth Factor I (IGF-I) isoform known as mechano growth factor (MGF).

摘要翻译： 本发明涉及用称为机械生长因子（MGF）的胰岛素样生长因子I（IGF-I）同种型治疗神经障碍。

公开(公告)号：US20060008026A1

公开(公告)日：2006-01-12

申请号：US11175509

申请日：2005-07-06

申请人： Steven Wood ,  Ian Johnson ,  Christian Luke ,  Adrian Mansell ,  Mark Cope

发明人： Steven Wood ,  Ian Johnson ,  Christian Luke ,  Adrian Mansell ,  Mark Cope

IPC分类号： H04K1/02

CPC分类号： H04L7/007 ,  H03F1/3241 ,  H04L7/0029 ,  H04L7/0062

摘要： A system and method for rapidly correcting the time difference between two signals is disclosed. In particular, a system and method for very rapidly correcting timing errors to the very high degree of accuracy required for digital predistortion adaptation is disclosed. The method is a signal processing technique, which can be performed in either hardware or software, which employs a correlation computation. The correlation results are processed in a manner that enables very rapid and accurate estimation of the time difference between the two signals.

摘要翻译： 公开了一种用于快速校正两个信号之间的时间差的系统和方法。 特别地，公开了一种用于非常快速地校正定时误差的数字预失真适应所需的非常高的准确度的系统和方法。 该方法是信号处理技术，其可以在采用相关计算的硬件或软件中执行。 相关结果以能够非常快速和准确地估计两个信号之间的时间差的方式进行处理。

公开(公告)号：US06558079B1

公开(公告)日：2003-05-06

申请号：US09543061

申请日：2000-04-05

申请人： Randall Jeff Kozak ,  Ian Johnson

发明人： Randall Jeff Kozak ,  Ian Johnson

IPC分类号： B09B100

CPC分类号： B09B1/004 ,  Y02W30/32

摘要： A method and apparatus is used for covering the exposed workface of a landfill with a film. The apparatus includes a compactor rotatably mounted on a frame which is hitched to a tractor. A film, spray and ballast deployer is mounted on the end of the frame for spraying the landfill, deploying the film onto the landfill, and deploying the ballast onto the film. The compactor includes a roller which compacts the waste prior to spraying the landfill and deploying the film and serves as a wheel for the frame. Hydraulics are provided to raise and lower the deployer. In operation, the assembly is pulled by the tractor causing the compactor to compact the waste just prior to the deployer laying the film on the workface and the ballast being deposited onto the film. Additionally, the apparatus is capable of casing the overlapping layers of laid film to adhere to the ballast in between thereby forming a seal between the adjoining layers.

摘要翻译： 一种方法和装置用于覆盖具有胶片的垃圾填埋场的暴露的工作面。 该设备包括可旋转地安装在框架上的压实机，该框架与拖拉机相连。 一个胶片，喷雾和镇流器部署器安装在框架的末端，用于喷涂垃圾填埋场，将膜部署到垃圾填埋场上，并将镇流器部署到膜上。 压实机包括一个辊子，它在喷洒垃圾填埋场和展开膜片之前压缩废物，并且用作框架的轮子。 提供液压以升高和降低部署者。 在操作中，组件被拖拉机拉动，导致压实机在将膜放置在工作面上并将压载物沉积到膜上之前紧凑化废物。 此外，该装置能够将叠层的重叠层包围在其间的压载物上，从而在邻接层之间形成密封。