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：US07239671B2

公开(公告)日：2007-07-03

申请号：US11175509

申请日：2005-07-06

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

发明人： Steven A. Wood ,  Ian Johnson ,  Christian G. 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：US09545571B2

公开(公告)日：2017-01-17

申请号：US12020137

申请日：2008-01-25

申请人： Ian Johnson ,  Dominic Jackson ,  Nouman Hanif

发明人： Ian Johnson ,  Dominic Jackson ,  Nouman Hanif

IPC分类号： A63F13/211 ,  A63F13/42 ,  A63F13/5375 ,  A63F13/40

CPC分类号： A63F13/42 ,  A63F13/10 ,  A63F13/211 ,  A63F13/5375 ,  A63F2300/105 ,  A63F2300/305 ,  A63F2300/6045

摘要： A system for allowing a player to invoke magic or other special powers in a video game is provided. To activate the magic, the player moves a motion detecting controller in accordance with one or more provided instructions. The outcome of the activation of the magic can be determinate on, for example, speed, accuracy, etc. Controllers in one or both hands may be used, and the instructions can be as simple as single direction gestures and as complex as multi-directional symbols which must be traced in the air. A sequence of any type of instructions may also be provided to instruct the activation of the magic.

摘要翻译： 提供了允许玩家在视频游戏中调用魔法或其他特殊权力的系统。 为了激活魔法，玩家根据一个或多个提供的指令移动运动检测控制器。 激活魔法的结果可以在例如速度，精度等方面确定。可以使用一只手或两只手中的控制器，并且指令可以像单向手势一样简单，并且与多方向一样复杂 必须在空中追踪的符号。 也可以提供任何类型的指令的序列来指示魔术的激活。

公开(公告)号：US09254365B2

公开(公告)日：2016-02-09

申请号：US13508690

申请日：2010-11-11

申请人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Ian Johnson ,  Andrew Reade ,  Eric Siu ,  Richard Sokolov ,  Christopher Dunn

发明人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Ian Johnson ,  Andrew Reade ,  Eric Siu ,  Richard Sokolov ,  Christopher Dunn

IPC分类号： A61M5/32

CPC分类号： A61M5/3234 ,  A61M5/3221 ,  A61M2005/323 ,  Y10T29/49826

摘要： A replaceable needle assembly is provided for a retractable syringe comprising a barrel and a plunger, whereby the retractable needle can be replaced by a user without affecting the retraction mechanism. A mounting member is removably mountable to the barrel by way of a screw-thread connection and a needle mount is removably coupled to the mounting member. A needle is mounted to the needle mount. The barrel comprises a needle mount retainer that comprises a plurality of fingers that engage the retractable needle mount to prevent inadvertent retraction. The plunger comprises a collapsible seal which maximizes the efficiency of fluid delivery prior to the plunger engaging the retractable needle mount for retraction. An initially compressed spring decompresses to drive retraction of the plunger and the engaged needle mount. A lock formed between the plunger and barrel prevents further use of the plunger after retraction.

摘要翻译： 提供了一种可替换的针组件，用于可伸缩的注射器，其包括筒体和柱塞，由此可伸缩的针可以由使用者代替，而不会影响回缩机构。 安装构件通过螺纹连接可拆卸地安装到筒体上，并且针安装件可移除地联接到安装构件。 针头安装在针座上。 枪管包括一个针头固定器，其包括多个指状物，该指状物与可缩回的针座相接合，以防止意外收回。 柱塞包括可折叠密封件，其在柱塞与可缩回的针座之间接合以使收缩的流体输送效率最大化。 初始压缩的弹簧减压以驱动柱塞和接合的针座的回缩。 形成在柱塞和筒体之间的锁可防止在收缩后进一步使用柱塞。

公开(公告)号：USD688846S1

公开(公告)日：2013-09-03

申请号：US29438009

申请日：2012-11-24

申请人： Ian Johnson

设计人： Ian Johnson

公开(公告)号：US20130060202A1

公开(公告)日：2013-03-07

申请号：US13508690

申请日：2010-11-11

申请人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Ian Johnson ,  Andrew Reade ,  Eric Siu ,  Richard Sokolov ,  Christopher Dunn

发明人： Craig Stephen Thorley ,  Joseph Hermes Kaal ,  Ian Johnson ,  Andrew Reade ,  Eric Siu ,  Richard Sokolov ,  Christopher Dunn

IPC分类号： A61M5/34 ,  B23P11/00 ,  A61M5/315

CPC分类号： A61M5/3234 ,  A61M5/3221 ,  A61M2005/323 ,  Y10T29/49826

摘要： A replaceable needle assembly is provided for a retractable syringe comprising a barrel and a plunger, whereby the retractable needle can be replaced by a user without affecting the retraction mechanism. A mounting member is removably mountable to the barrel by way of a screw-thread connection and a needle mount is removably coupled to the mounting member. A needle is mounted to the needle mount. The barrel comprises a needle mount retainer that comprises a plurality of fingers that engage the retractable needle mount to prevent inadvertent retraction. The plunger comprises a collapsible seal which maximizes the efficiency of fluid delivery prior to the plunger engaging the retractable needle mount for retraction. An initially compressed spring decompresses to drive retraction of the plunger and the engaged needle mount. A lock formed between the plunger and barrel prevents further use of the plunger after retraction.

摘要翻译： 提供了一种可替换的针组件，用于可伸缩的注射器，其包括筒体和柱塞，由此可伸缩的针可以由使用者代替，而不会影响回缩机构。 安装构件通过螺纹连接可拆卸地安装到筒体上，并且针安装件可移除地联接到安装构件。 针头安装在针座上。 枪管包括一个针头固定器，其包括多个指状物，该指状物与可缩回的针座相接合，以防止意外收回。 柱塞包括可折叠密封件，其在柱塞与可缩回的针座之间接合以使收缩的流体输送效率最大化。 初始压缩的弹簧减压以驱动柱塞和接合的针座的回缩。 形成在柱塞和筒体之间的锁可防止在收缩后进一步使用柱塞。

公开(公告)号：USD592888S1

公开(公告)日：2009-05-26

申请号：US29260279

申请日：2006-05-23

申请人： Ian Johnson

设计人： Ian Johnson

公开(公告)号：US20110225152A1

公开(公告)日：2011-09-15

申请号：US12724126

申请日：2010-03-15

申请人： SCOTT BEAUDREAU ,  Gayathri Venkataraman ,  Ajay Nair ,  Alnur Ali ,  Ian Johnson ,  Daniel Marantz ,  Tim Hoad ,  Rekha Seshadrinathan ,  Ping Yin ,  Minnie Yan ,  Toan Huynh ,  Song Zhou ,  Ramki Natarajan

发明人： SCOTT BEAUDREAU ,  Gayathri Venkataraman ,  Ajay Nair ,  Alnur Ali ,  Ian Johnson ,  Daniel Marantz ,  Tim Hoad ,  Rekha Seshadrinathan ,  Ping Yin ,  Minnie Yan ,  Toan Huynh ,  Song Zhou ,  Ramki Natarajan

IPC分类号： G06F17/30

CPC分类号： G06F16/345 ,  G06F16/9535

摘要： The present invention is related to constructing a search-result caption that represents content of a search result (e.g., webpage). Information that is extracted from the webpage and/or other webpages is categorized and ranked based on a perceived relevance to a user context. Extracted information is then compared for inclusion in the search-result caption in order to provide a caption that accurately reflects content of the webpage and that is relevant to a context of the user

摘要翻译： 本发明涉及构造表示搜索结果（例如，网页）的内容的搜索结果标题。 基于与用户上下文的感知相关性，从网页和/或其他网页提取的信息被分类和排序。 然后将提取的信息进行比较以包括在搜索结果标题中，以便提供准确地反映网页的内容并且与用户的上下文相关的标题

公开(公告)号：USD560725S1

公开(公告)日：2008-01-29

申请号：US29260283

申请日：2006-05-23

申请人： Ian Johnson

设计人： Ian Johnson