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    • 93. 发明授权
    • Method and apparatus for adaptive scatter correction
    • 自适应散射校正的方法和装置
    • US09320477B2
    • 2016-04-26
    • US13223803
    • 2011-09-01
    • Xin LiuJiang HsiehXiaoye Wu
    • Xin LiuJiang HsiehXiaoye Wu
    • A61B6/03A61B6/00
    • A61B6/032A61B6/482A61B6/5282
    • A CT system includes a rotatable gantry having an opening to receive an object to be scanned, an x-ray source configured to project an x-ray beam toward the object having a primary intensity, a detector configured to detect high frequency electromagnetic energy passing through the object and output imaging data, and a data acquisition system (DAS) connected to the detector and configured to receive the imaging data. The system also includes a computer programmed to obtain image projection data of the object from the DAS, correct the projection data using a scatter function that is based at least on a known characteristic of the x-ray beam, and generate images using the corrected projection data.
    • CT系统包括可旋转机架,其具有用于接收待扫描物体的开口,被配置为将X射线束投影到具有主要强度的物体的X射线源;检测器,被配置为检测经过的高频电磁能 物体和输出成像数据,以及连接到检测器并被配置为接收成像数据的数据采集系统(DAS)。 该系统还包括被编程为从DAS获得对象的图像投影数据的计算机,使用至少基于X射线束的已知特征的散射函数校正投影数据,并使用校正的投影产生图像 数据。
    • 95. 发明授权
    • X-ray pose recovery
    • X射线姿态恢复
    • US09232924B2
    • 2016-01-12
    • US14007334
    • 2012-03-29
    • Xin LiuAmeet Kumar Jain
    • Xin LiuAmeet Kumar Jain
    • A61B6/12A61B6/00A61B19/00
    • A61B6/12A61B6/4441A61B6/487A61B6/547A61B34/20A61B2090/367A61B2090/376A61B2090/3966F04C2270/041
    • A method, system, and program product are provided for x-ray pose recovery during an endoscopic procedure. An x-ray image is taken with a C-arm at a first pose, capturing a region of an endoscope with fiducials thereon. The C-arm is moved from the first pose to a second pose at another viewing angle while maintaining the position of the endoscope. Another x-ray image is taken with the C-arm at the second C-arm pose, capturing the region of the endoscope with the fiducials thereon. The location of the fiducials on each x-ray image is determined using segmentation. An iterative optimization is performed using the locations of the fiducials in the two x-ray images to form two-dimensional projections of the three dimensional curve of the region of the endoscope with fiducials thereon to determine the three-dimensional translation and rotation of the C-arm from the first x-ray pose to the second x-ray pose.
    • 提供了一种方法,系统和程序产品,用于内窥镜过程中的x射线姿态恢复。 以C形臂以第一姿势拍摄x射线图像,在其上捕获具有基准的内窥镜的区域。 在维持内窥镜的位置的同时,C臂在另一个视角从第一姿势移动到第二姿态。 以C臂在第二C臂姿势拍摄另一X射线图像,以其上的基准捕获内窥镜的区域。 使用分割确定每个X射线图像上的基准点的位置。 使用两个x射线图像中的基准点的位置来执行迭代优化,以形成具有基准的内窥镜区域的三维曲线的二维投影,以确定C的三维平移和旋转 从第一个x射线姿势到第二个x射线姿势。
    • 98. 发明授权
    • Low-power wide-tuning range common-mode driver for serial interface transmitters
    • 用于串行接口发射器的低功耗宽调谐范围共模驱动器
    • US08604829B2
    • 2013-12-10
    • US13227250
    • 2011-09-07
    • Xin LiuArvind Bomdica
    • Xin LiuArvind Bomdica
    • H03K17/16
    • H04L25/0276
    • A method is provided for controlling a data transmission device. The method includes providing a reference voltage to the common mode driver and putting the data transmission device in a low power state. The method also includes driving a differential signal pair output from the common mode driver during a portion of the low power state. Also provided is a device that includes a data output driver portion configured to drive an output signal at a common mode voltage and a data output driver portion configured to drive an output signal at a differential voltage level during at least a portion of time when the device is not in a low power state. Also provided is a computer readable storage device encoded with data for adapting a manufacturing facility to create the device. Also provided is an apparatus configured to perform the method.
    • 提供了一种用于控制数据传输设备的方法。 该方法包括向共模驱动器提供参考电压并将数据传输设备置于低功率状态。 该方法还包括在低功率状态的一部分期间驱动从共模驱动器输出的差分信号对。 还提供了一种装置,其包括被配置为以共模电压驱动输出信号的数据输出驱动器部分和数据输出驱动器部分,所述数据输出驱动器部分被配置为在至少一部分时间内驱动具有差分电压电平的输出信号, 不处于低功率状态。 还提供了一种计算机可读存储设备,其被编码用于使制造设备适配以创建设备的数据。 还提供了被配置为执行该方法的装置。
    • 100. 发明授权
    • Circuit and method to control slew rate of a current-mode logic output driver
    • 控制电流模式逻辑输出驱动器的转换速度的电路和方法
    • US08564326B2
    • 2013-10-22
    • US13114479
    • 2011-05-24
    • Xin LiuArvind BomdicaMing-Ju Edward Lee
    • Xin LiuArvind BomdicaMing-Ju Edward Lee
    • H03K5/01
    • H03K5/01H04L25/0272H04L25/0282
    • A method is provided for selecting at least one of a plurality of slew rate control settings based at least upon a speed of data transmission and receiving input data where the input data is received at the data transmission speed. The method also includes switching the received input data in accordance with the selected at least one of a plurality of slew rate control settings and sending output data at the data transmission speed. Also provided is data driver device that includes at least one activation portion comprising one or more slew rate controls, a voltage-mode driver portion and at least a first current-mode driver portion. Also provided is a computer readable storage device encoded with data for adapting a manufacturing facility to create the data driver device. Also provided is a system including the data driver device, a data storage device and a processor device.
    • 提供了一种至少根据数据传输的速度选择多个转换速率控制设置中的至少一个并接收以数据传输速度接收输入数据的输入数据的方法。 该方法还包括根据所选择的多个转换速率控制设置中的至少一个切换所接收的输入数据,并以数据传输速度发送输出数据。 还提供了数据驱动器装置,其包括至少一个包括一个或多个转换速率控制的激活部分,电压模式驱动器部分和至少第一电流模式驱动器部分。 还提供了一种用数据编码的计算机可读存储设备,用于使制造设施适配以创建数据驱动器设备。 还提供了包括数据驱动器装置,数据存储装置和处理器装置的系统。