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    • 2. 发明授权
    • Circuit and method for pre-emphasis in data serialization
    • 数据序列化预加重电路及方法
    • US07512193B1
    • 2009-03-31
    • US11120726
    • 2005-05-02
    • Peter ShingMin DuXin LiuQingping Zheng
    • Peter ShingMin DuXin LiuQingping Zheng
    • H04L25/49
    • H04L25/0286H04L25/03343
    • A circuit for pre-emphasis in data serialization. The circuit has a signal delayline to incrementally delay a serialized signal, producing a delayed serialized signal. The circuit has a one bit generator circuit, which determines the interval between receipt of one bit and a second bit. The one bit generator circuit has a strobe delayline to incrementally delay a strobe signal, producing a delayed strobe signal, a logical gate to compare the delayed strobe signal with a second strobe signal, and a logical component to determine how long the delayed strobe signal was delayed before it matched the second strobe signal. The circuit also has a comparison gate to detect transition points in the serialized signal by comparing the delayed serialized signal with the serialized signal. The circuit also has a current source to provide increased current for the serialized signal at the detected transition points.
    • 数据串行化预加重电路。 电路具有延迟延迟串行化信号的信号延迟线,产生延迟的串行化信号。 该电路具有一位发生器电路,其确定接收到一位和第二位之间的间隔。 一比特发生器电路具有选通延迟线,用于递增地延迟选通信号,产生延迟的选通信号,逻辑门以比较延迟的选通信号与第二选通信号,以及逻辑分量,以确定延迟的选通信号为多久 在匹配第二个选通信号之前被延迟。 该电路还具有比较门,以通过将延迟串行化信号与串行化信号进行比较来检测串行化信号中的转换点。 该电路还具有电流源,以在检测到的转变点处为串行化信号提供增加的电流。
    • 10. 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。