公开(公告)号：US08265681B2

公开(公告)日：2012-09-11

申请号：US12044185

申请日：2008-03-07

申请人： Xiaohui Wang ,  Jonas Ohlsson ,  Magnus Öst

发明人： Xiaohui Wang ,  Jonas Ohlsson ,  Magnus Öst

IPC分类号： H04B7/185 ,  H04B7/00 ,  H04B1/00 ,  H04B17/00 ,  H04B1/38 ,  H04B15/00 ,  H04W4/00 ,  H04K1/02 ,  H04L27/10

CPC分类号： H04W52/12 ,  H04B2201/709727 ,  H04W52/20 ,  H04W52/241

摘要： Outer-loop power control methods and apparatus are disclosed. In an exemplary embodiment, a short-term block error rate is measured for a received signal, and a coarse adjustment to a target signal-to-interference ratio (SIR) is calculated as a function of the short-term block error rate, a target block error rate, and a first loop tuning parameter. In some embodiments, a fine adjustment to the target SIR is also calculated, as a function of a smoothed block error rate, the target block error rate, and a second loop tuning parameter. The coarse adjustment provides quick responsiveness to received block errors, while the fine adjustment moderates the coarse adjustments by accounting for a longer-term view of the received block error rate. The target SIR adjustments disclosed herein may be computed in each of several iterations of an outer-loop power control loop.

摘要翻译： 公开了外环功率控制方法和装置。 在示例性实施例中，针对接收信号测量短期块错误率，并且根据短期块错误率计算对目标信号干扰比（SIR）的粗略调整， 目标块错误率和第一个循环调整参数。 在一些实施例中，还根据平滑的块错误率，目标块错误率和第二环路调整参数来计算对目标SIR的精细调整。 粗略调整提供对接收到的块错误的快速响应，而微调通过考虑接收到的块错误率的长期视图来缓和粗调。 可以在外环功率控制回路的几次迭代中的每一个中计算本文公开的目标SIR调整。

公开(公告)号：US20120188272A1

公开(公告)日：2012-07-26

申请号：US13013660

申请日：2011-01-25

申请人： Xiaohui Wang ,  Sebastian Ahmed

发明人： Xiaohui Wang ,  Sebastian Ahmed

IPC分类号： G09G5/00

CPC分类号： G09G3/344 ,  G09G5/14 ,  G09G2310/0205 ,  G09G2310/04 ,  G09G2320/0252 ,  G09G2320/10 ,  G09G2340/16

摘要： A display controller including a pixel processor which processes working pixel data for each pixel of a frame, and which includes an overlap detector, a collision detector, and a construction processor. The overlap detector detects an overlap when any new pixel value of a new update region is within a region of a current update of the frame. The collision detector issues a correction request when at least one pixel within the overlap region has a begin pixel value prior to the current update that is different from an end pixel value provided by the current update, and when a new pixel value provided by the new update for the pixel is different from the end pixel value. The construction processor updates the working pixel data before the current update is completed using a new pixel value for each non-overlapping pixel.

摘要翻译： 一种显示控制器，包括处理帧的每个像素的工作像素数据并且包括重叠检测器，碰撞检测器和构造处理器的像素处理器。 当新的更新区域的新像素值在帧的当前更新的区域内时，重叠检测器检测重叠。 当重叠区域内的至少一个像素具有与当前更新提供的结束像素值不同的当前更新之前的开始像素值时，并且当由新的提供的新的像素值时，碰撞检测器发出校正请求 像素的更新与结束像素值不同。 施工处理器在当前更新完成之前使用每个非重叠像素的新像素值更新工作像素数据。

公开(公告)号：US20110317632A1

公开(公告)日：2011-12-29

申请号：US12822209

申请日：2010-06-24

申请人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Xiaohui Wang

发明人： Paramvir Bahl ,  Ranveer Chandra ,  Thomas Moscibroda ,  Xiaohui Wang

IPC分类号： H04W72/04

CPC分类号： H04W4/02 ,  H04W24/00 ,  H04W48/08 ,  H04W72/00

摘要： Described is incorporating white space networking components into a network stack. A user mode spectrum access control component determines which white space channels are currently allowed for use based upon policy, current operating status and availability information obtained from one or more sources. A white space service (e.g., in the WLAN service) receives the availability information. The white space service includes a discovery module that discovers other nodes, and a channel migration module that changes from the current channel to another channel if the current channel is no longer allowed for use. A kernel mode (NDIS layer) white space driver through a miniport driver controls the channel in use as the current channel. An automatic configuration module is provided that switches to Wi-Fi network communication when a Wi-Fi network is present, and switches back when a Wi-Fi network is not present.

摘要翻译： 描述将白色空间网络组件合并到网络堆栈中。 用户模式频谱访问控制组件基于从一个或多个源获得的策略，当前操作状态和可用性信息来确定当前允许使用哪个空白信道。 空白服务（例如，在WLAN服务中）接收可用性信息。 白色空间服务包括发现其他节点的发现模块，以及当前通道不再允许使用时，通道迁移模块从当前通道更改为另一个通道。 通过微型端口驱动程序的内核模式（NDIS层）空白驱动程序控制正在使用的通道作为当前通道。 提供自动配置模块，当Wi-Fi网络存在时切换到Wi-Fi网络通信，并且当Wi-Fi网络不存在时切换回。

公开(公告)号：US07903723B2

公开(公告)日：2011-03-08

申请号：US11911705

申请日：2006-04-05

申请人： Xiaohui Wang

发明人： Xiaohui Wang

IPC分类号： H04B1/00

CPC分类号： H04B1/7117 ,  H04B1/7113

摘要： Multipath components of transmitted data symbols are received with individual delays and processed by a RAKE unit having a number of fingers. A delay profile is calculated, and delay values for peaks detected therein are determined. A number of peak delay values representing the largest peaks for the profile are pre-selected, and for each of them a signal-to-interference ratio for delay values in an interval around the pre-selected peak delay value is calculated. In each interval the delay value having the highest signal-to-interference ratio is selected and provided to the RAKE unit with each selected delay being assigned to a RAKE finger. Hereby the ability to select correct and accurate path delays can be improved also in time critical processes, where filtering of the delay profiles over several frames is not possible, because quite accurate delay values can be provided shortly after wake-up of the receiver.

摘要翻译： 所发送的数据符号的多路径分量被接收具有单独的延迟并由具有多个指状物的RAKE单元处理。 计算延迟分布，并确定其中检测到的峰的延迟值。 预先选择表示轮廓的最大峰值的多个峰值延迟值，并且对于它们中的每一个，计算围绕预选峰值延迟值的间隔中的延迟值的信号干扰比。 在每个间隔中，选择具有最高信号干扰比的延迟值并将其提供给RAKE单元，其中每个选择的延迟被分配给RAKE指。 因此，在时间关键过程中，也可以改进选择正确和准确的路径延迟的能力，因为在几个帧上的延迟分布的滤波是不可能的，因为在接收机唤醒后不久可以提供相当精确的延迟值。

公开(公告)号：US07852824B2

公开(公告)日：2010-12-14

申请号：US11913118

申请日：2006-04-20

申请人： Xiaohui Wang ,  Erik Dahlbäck ,  Marten Myrehed ,  Torgny Palenius

发明人： Xiaohui Wang ,  Erik Dahlbäck ,  Marten Myrehed ,  Torgny Palenius

IPC分类号： H04B7/212

CPC分类号： H04W74/0866 ,  H04B1/707 ,  H04W16/14 ,  H04W24/00

摘要： In third generation mobile communications networks, e.g. CDMA systems, a mobile station intending to access a base station transmits a request for access to a base station and waits for a response in the form of an indicator signal. Both detecting a signal as an acknowledgement message without one being sent from the base station and failing to detect such an acknowledgement message can give rise to noise and interference in the whole cell. The invention provides a method and a user equipment for determining the received signal strength in an access slot in a downlink channel and for asserting whether detection of an indicator signal from the base station in the access slot in the downlink channel is reliable. Hereby, a more secure reception of indicator signals can be obtained, which leads to reduced interference and noise in the whole cell.

摘要翻译： 在第三代移动通信网络中，例如， CDMA系统，旨在接入基站的移动台发送对基站的接入请求，并以指示符信号的形式等待响应。 检测到信号作为确认消息而没有从基站发送并且未能检测到这样的确认消息可能会在整个小区中产生噪声和干扰。 本发明提供一种用于确定下行链路信道中的接入时隙中的接收信号强度的方法和用户设备，并且用于断言来自下行链路信道中的接入时隙中的来自基站的指示符信号的检测是否可靠。 因此，可以获得更安全的指示符信号的接收，这导致整个小区中的干扰和噪声的降低。

公开(公告)号：US07848560B2

公开(公告)日：2010-12-07

申请号：US11834356

申请日：2007-08-06

申请人： Xiaohui Wang ,  Mary E. Couwenhoven

发明人： Xiaohui Wang ,  Mary E. Couwenhoven

IPC分类号： G06K9/40 ,  G06K9/00

CPC分类号： G06T5/004 ,  G06T2207/20016

摘要： A method of enhancing a digital image obtains the digital image, then decomposes the provided digital image according to a plurality of a number N frequency bands, including a low frequency band and more than one different higher frequency bands. Modified image data is formed by applying a gain function to image data for one or more of the N frequency bands according to a setting of a number M control points, wherein M is less than N. The modified image data for the N frequency bands are summed to form a reconstructed digital image.

摘要翻译： 增强数字图像的方法获得数字图像，然后根据包括低频带和多于一个不同的较高频带的多个N个频带来分解所提供的数字图像。 通过根据M个控制点的设置对N个频带中的一个或多个的图像数据应用增益函数形成修正图像数据，其中M小于N.对于N个频带的修改图像数据是 相加以形成重建的数字图像。

公开(公告)号：US07642506B2

公开(公告)日：2010-01-05

申请号：US11550453

申请日：2006-10-18

申请人： Xiaohui Wang ,  Michael K. Rogers

发明人： Xiaohui Wang ,  Michael K. Rogers

IPC分类号： G01B13/00 ,  G01N23/02 ,  A61B6/02

CPC分类号： A61B6/583

摘要： A phantom for use in measuring characteristics of a digital radiography imaging system has at least one substrate having a patterned foil layer. The pattern in the foil layer being defined by a plurality of apertures within which the substrate is exposed.

摘要翻译： 用于测量数字放射摄影成像系统的特征的体模具有至少一个具有图案化箔层的衬底。 箔层中的图案由衬底暴露在其中的多个孔限定。

公开(公告)号：US20080093544A1

公开(公告)日：2008-04-24

申请号：US11550453

申请日：2006-10-18

申请人： Xiaohui Wang ,  Michael K. Rogers

发明人： Xiaohui Wang ,  Michael K. Rogers

IPC分类号： G21K3/00

CPC分类号： A61B6/583

摘要： A phantom for use in measuring characteristics of a digital radiography imaging system has at least one substrate having a patterned foil layer. The pattern in the foil layer being defined by a plurality of apertures within which the substrate is exposed.

摘要翻译： 用于测量数字放射摄影成像系统的特征的体模具有至少一个具有图案化箔层的衬底。 箔层中的图案由衬底暴露在其中的多个孔限定。

公开(公告)号：US07329890B2

公开(公告)日：2008-02-12

申请号：US11230121

申请日：2005-09-19

申请人： Lynn M. Fletcher-Heath ,  Francisca Sugiro ,  Xiaohui Wang

发明人： Lynn M. Fletcher-Heath ,  Francisca Sugiro ,  Xiaohui Wang

IPC分类号： G03B42/02

CPC分类号： G03B42/02 ,  A61B6/4494 ,  G01T1/40 ,  G01V5/06 ,  G03B42/04

摘要： A method for scanning and processing computed radiography x-ray images in order to maximize the usage of cassette options. The storage phosphor radiography imaging method of the invention employs a cassette comprising a storage phosphor screen adapted to be exposed to x-rays to store a latent x-ray image in the screen and read using a reader. The method includes the steps of: associating cassette information with the cassette using an identification member affixed to the cassette or storage phosphor screen, the cassette information comprising information relating to characteristics of the cassette relevant to the reading of the screen by the reader; prior to reading the exposed storage phosphor screen to generate a digital image signal, scanning the identification member to obtain the cassette information; and reading the exposed storage phosphor screen in accordance with the cassette information to generate the digital image signal.

摘要翻译： 用于扫描和处理计算机X射线影像的方法，以便最大限度地利用盒式磁带选项。 本发明的存储磷光体照相成像方法采用包括适于暴露于X射线的存储荧光屏的盒，以将潜在X射线图像存储在屏幕中并使用读取器读取。 该方法包括以下步骤：使用固定在盒式磁带或存储荧光屏上的识别构件将盒式磁带信息与磁带盒相关联，磁带盒信息包括与阅读器读取屏幕有关的盒式磁带的特性信息; 在读取曝光的存储荧光屏以产生数字图像信号之前，扫描识别构件以获得盒信息; 以及根据盒信息读取曝光的存储荧光屏以产生数字图像信号。

公开(公告)号：US20070110138A1

公开(公告)日：2007-05-17

申请号：US11532311

申请日：2006-09-15

申请人： Xiaohui Wang ,  Anders Ericsson

发明人： Xiaohui Wang ,  Anders Ericsson

IPC分类号： H04B1/00

CPC分类号： H04B1/7107 ,  H04B1/7113 ,  H04B1/7117

摘要： In a RAKE receiver delays associated with multipath signals are determined by subtracting power values associated with sidelobes of a peak value for each of the multipath signals. The determination can be performed in two stages, in the first stage the determination of the delays is made without accounting for a phase difference between adjacent multipath signals, while in the second stage the determinations are made accounting for the phase difference.

摘要翻译： 在RAKE接收机中，与多径信号相关联的延迟通过减去与每个多径信号的峰值的旁瓣相关联的功率值来确定。 可以在两个阶段中进行确定，在第一阶段中，在不考虑相邻多路径信号之间的相位差的情况下进行延迟的确定，而在第二阶段中，确定相位差。