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    • 5. 发明授权
    • Systems and methods for memory-efficient storage and extraction of maximum power reduction (MPR) values in two-carrier wireless data systems
    • 用于存储高效存储和提取双载波无线数据系统中最大功率降低(MPR)值的系统和方法
    • US08644183B2
    • 2014-02-04
    • US13533585
    • 2012-06-26
    • Jinhua JiangZae Yong ChoiMei Chen
    • Jinhua JiangZae Yong ChoiMei Chen
    • H04J1/16
    • H04W52/367H04W52/34
    • Systems and methods for memory-efficient storage and extraction of maximum power reduction (MPR) values in two-carrier wireless data systems are presented. A wireless broadband device can operate under the HSUPA Category 9 standard, in which two carriers can be employed for data uplinks. Due to power saturation, interference, and other factors, transmission output power is limited to various levels depending on channel configuration. Under previous standards using one carrier, the maximum power reduction (MPR) needed to address those issues could be stored on the device, since the total number of MPR values was limited. With the introduction of dual carriers in HSUPA-9, storing all possible MPR values is no longer feasible. Platforms and techniques are disclosed which allow accurate generation of MPR values in a two-carrier system, utilizing the 2nd, 4th, and 6th moments of the complex signals to derive MPR values without attempting to store all possible carrier combinations.
    • 介绍了在双载波无线数据系统中高效存储和提取最大功率降低(MPR)值的系统和方法。 无线宽带设备可以在HSUPA类别9标准下工作,其中两个载波可用于数据上行链路。 由于功率饱和,干扰和其他因素,传输输出功率受限于根据信道配置的各种级别。 在使用一个载波的以前的标准下,解决这些问题所需的最大功率降低(MPR)可以存储在设备上,因为MPR值的总数是有限的。 随着在HSUPA-9中引入双载波,存储所有可能的MPR值不再可行。 公开了平台和技术,其允许在双载波系统中精确地生成MPR值,利用复信号的第2,第4和第6时刻导出MPR值而不尝试存储所有可能的载波组合。
    • 8. 发明授权
    • Enhancing image resolution
    • 增强图像分辨率
    • US08036494B2
    • 2011-10-11
    • US10824692
    • 2004-04-15
    • Mei Chen
    • Mei Chen
    • G06K9/32
    • G06T3/4053G06T7/215G06T2207/20016
    • Methods, machines, and machine-readable media for enhancing image resolution are described. In one aspect, a respective motion map is computed for each pairing of a reference image and a respective image neighboring the reference image in a sequence of base images. Each motion map includes a set of motion vectors mapping reference image pixels to respective neighboring image pixels. Respective regions of a target image are assigned to motion classes based on the computed motion maps. The target image has a target resolution level and the base images have a base resolution level equal to or lower than the target resolution level. Pixel values for the target image are computed based on corresponding pixel value contributions from the motion-compensated neighboring base images selected in accordance with the motion classes assigned to the target image regions.
    • 描述了用于增强图像分辨率的方法,机器和机器可读介质。 在一个方面,针对参考图像和基准图像序列中与参考图像相邻的各个图像的每个配对来计算相应的运动图。 每个运动图包括将参考图像像素映射到各个相邻图像像素的一组运动矢量。 基于所计算的运动图,将目标图像的各个区域分配给运动类别。 目标图像具有目标分辨率级别,并且基本图像具有等于或低于目标分辨率级别的基本分辨率级别。 基于根据分配给目标图像区域的运动类别选择的运动补偿相邻基本图像的相应像素值贡献来计算目标图像的像素值。
    • 9. 发明授权
    • Three dimensional image processing apparatus and X-ray diagnosis apparatus
    • 三维图像处理装置和X射线诊断装置
    • US07660383B2
    • 2010-02-09
    • US11844048
    • 2007-08-23
    • Takuya SakaguchiMichael D. SilverJingwu YaoMei ChenStefan BozhilovSatoru Ohishi
    • Takuya SakaguchiMichael D. SilverJingwu YaoMei ChenStefan BozhilovSatoru Ohishi
    • A61B6/00
    • G01N23/046G01N2223/419
    • A three dimensional image processing apparatus includes a storage unit storing data of images in different radiographing directions together with information concerning cardiac phases, a key image selection unit selecting key images from the images, a feature point designation unit designatting feature points on the selected key images in accordance with operation by an operator, and an image reconstruction unit reconstructing a three dimensional image from the images on the basis of positions of the designated feature points, wherein the key image selection unit selects, as the key images, a pair of images which are located at the same cardiac phase and whose radiographing directions are different by a substantially predetermined angle and images spaced apart from each other by an angle obtained by substantially equally dividing an interval between the pair of images by a predetermined number.
    • 三维图像处理装置包括存储单元,其存储与不同的放射线方向的图像的数据以及关于心脏相位的信息,按键图像选择单元从图像中选择关键图像,特征点指定单元指定所选择的关键图像上的特征点 根据操作者的操作,以及图像重建单元,其基于所指定的特征点的位置,根据所述图像重建三维图像,其中,所述键图像选择单元选择一对图像,所述一对图像 位于相同的心脏相位,并且其放射照相方向以基本上预定的角度不同,并且将图像彼此间隔开通过基本上将该对图像之间的间隔除以预定数目而获得的角度。
    • 10. 发明申请
    • THREE DIMENSIONAL IMAGE PROCESSING APPARATUS AND X-RAY DIAGNOSIS APPARATUS
    • 三维图像处理装置和X射线诊断装置
    • US20090052613A1
    • 2009-02-26
    • US11844048
    • 2007-08-23
    • Takuya SakaguchiMichael D. SilverJingwu YaoMei ChenStefan BozhilovSatoru Ohishi
    • Takuya SakaguchiMichael D. SilverJingwu YaoMei ChenStefan BozhilovSatoru Ohishi
    • G01N23/00
    • G01N23/046G01N2223/419
    • A three dimensional image processing apparatus includes a storage unit storing data of images in different radiographing directions together with information concerning cardiac phases, a key image selection unit selecting key images from the images, a feature point designation unit designatting feature points on the selected key images in accordance with operation by an operator, and an image reconstruction unit reconstructing a three dimensional image from the images on the basis of positions of the designated feature points, wherein the key image selection unit selects, as the key images, a pair of images which are located at the same cardiac phase and whose radiographing directions are different by a substantially predetermined angle and images spaced apart from each other by an angle obtained by substantially equally dividing an interval between the pair of images by a predetermined number.
    • 三维图像处理装置包括存储单元,其存储与不同的放射线方向的图像的数据以及关于心脏相位的信息,按键图像选择单元从图像中选择关键图像,特征点指定单元指定所选择的关键图像上的特征点 根据操作者的操作,以及图像重建单元,其基于所指定的特征点的位置,根据所述图像重建三维图像,其中,所述键图像选择单元选择一对图像,所述一对图像 位于相同的心脏相位,并且其放射照相方向以基本上预定的角度不同,并且将图像彼此间隔开通过基本上将该对图像之间的间隔除以预定数目而获得的角度。