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    • 24. 发明申请
    • INVASIVE CARDIAC VALVE
    • 入侵心脏瓣膜
    • US20120316642A1
    • 2012-12-13
    • US13519930
    • 2010-12-30
    • Qifeng YuXiang LiuYunlei WangChengyun YueQiyi Luo
    • Qifeng YuXiang LiuYunlei WangChengyun YueQiyi Luo
    • A61F2/24
    • A61F2/2412A61F2/2415A61F2/2418A61F2002/3021A61F2002/9528A61F2002/9534A61F2220/0075A61F2230/0021A61F2230/0023A61F2230/0054A61F2230/0067A61F2230/008A61F2250/0039
    • An invasive cardiac valve comprises a tubular stent (1) and a valve (2). One end of the tubular stent (1) is of a frusto-conical structure, the other end is wide open, and the diameter of the open end is greater than the diameter of the frusto-conical end. The valve (2) is attached to the frusto-conical end of the tubular stent (1); and a delivery and retrieval hole (4) of the cardiac valve is provided at the top of the open end of the tubular stent (1). Because the diameter of the open end is greater than the diameter of the frusto-conical end, the cardiac valve can be effectively fixed in a position of aortic annulus to prevent the cardiac valve displacement caused by the impact of the blood flow. Because the valve (2) is attached to the frusto-conical end of the tubular stent (1), the valve (2) can totally avoid the left and right coronary ostia and does not affect the haemodynamics of the coronary artery. Because a delivery and retrieval hole (4) of the cardiac valve is provided at the top of the open end of the tubular stent (1), the cardiac valve can be retrieved and reset at any time by handle control if it is found to be placed in an improper position during the release process.
    • 侵入式心脏瓣膜包括管状支架(1)和阀(2)。 管状支架(1)的一端具有截头圆锥形结构,另一端敞开,开口端的直径大于截头圆锥端的直径。 阀(2)连接到管状支架(1)的截头圆锥端; 并且所述心脏瓣膜的输送和取出孔(4)设置在所述管状支架(1)的开口端的顶部。 因为开口端的直径大于截头圆锥端的直径,所以心脏瓣膜可以有效地固定在主动脉瓣环的位置,以防止由血液流动引起的心脏瓣膜位移。 因为阀(2)附接到管状支架(1)的截头圆锥端,所以阀(2)可以完全避免左冠状动脉和右冠状动脉,并且不影响冠状动脉的血流动力学。 因为心脏瓣膜的输送和取出孔(4)设置在管状支架(1)的开口端的顶部,所以如果发现心脏瓣膜被发现是可以通过手柄控制随时取出和重新设置心脏瓣膜 在释放过程中处于不正确的位置。
    • 25. 发明授权
    • Method of manufacturing a display device using a barrier layer to form an ohmic contact layer
    • 制造使用阻挡层形成欧姆接触层的显示装置的方法
    • US08223312B2
    • 2012-07-17
    • US12701766
    • 2010-02-08
    • Xiang Liu
    • Xiang Liu
    • G02F1/136G02F1/13
    • G02F1/1368H01L27/1288
    • An embodiment of the invention provides a thin film transistor liquid crystal display (TFT-LCD) array substrate comprising: a gate line and a data line that intersect with each other to define a pixel region; and a pixel electrode and a thin film transistor formed in the pixel region. The thin film transistor comprises: a gate electrode connected with the gate line; a semiconductor island positioned above the gate electrode; and a source electrode and a drain electrode that are formed on the semiconductor island. A surface of the semiconductor island contacting with the source electrode and the drain electrode comprises ohmic contact regions subject to a surface treatment and a region of the semiconductor layer between the source electrode and the drain electrode is covered with a barrier layer. Another embodiment of the invention provides a method of manufacturing a thin film transistor liquid crystal display (TFT-LCD) array substrate.
    • 本发明的一个实施例提供了一种薄膜晶体管液晶显示器(TFT-LCD)阵列基板,包括:栅极线和数据线,彼此相交以限定像素区域; 以及形成在像素区域中的像素电极和薄膜晶体管。 薄膜晶体管包括:与栅极线连接的栅电极; 位于栅电极上方的半导体岛; 以及形成在半导体岛上的源电极和漏电极。 与源电极和漏电极接触的半导体岛的表面包括经受表面处理的欧姆接触区域,并且源极电极和漏电极之间的半导体层的区域被阻挡层覆盖。 本发明的另一实施例提供一种制造薄膜晶体管液晶显示器(TFT-LCD)阵列基板的方法。
    • 26. 发明申请
    • Apparatus And Method For Generating Interleaved Return-To-Zero (IRZ) Polarization-Division Multiplexed (PDM) Signals
    • 用于生成交错归零(IRZ)偏振分复用(PDM)信号的装置和方法
    • US20120177372A1
    • 2012-07-12
    • US12985835
    • 2011-01-06
    • Xiang LiuChandrasekhar Sethumadhavan
    • Xiang LiuChandrasekhar Sethumadhavan
    • H04J14/06H04B10/00
    • H04B10/532H04B10/5053H04B10/5055H04B10/508H04B10/5162H04B10/5561
    • Return To Zero (RZ) shaping is performed for a first I/Q modulator whose output corresponds to a first polarization component using a first two digital-to-analog convertors (DACs), each of which is sampled at approximately twice a modulation symbol rate or more and has an output with a first interleaving order that interleaves one of a first pair of intended drive signal patterns and zeros. RZ shaping is also performed for a second I/Q modulator whose output corresponds to a second polarization component using a second two DACs, each sampled at approximately twice the modulation symbol rate or more and having a second interleaving order that interleaves zeros and one of a second pair of intended drive signal patterns, the second interleaving order opposite the first interleaving order. The first polarization and the second polarization may be combined, thereby forming an Interleaved Return To Zero (IRZ) Polarization Division Multiplexed (PDM) signal.
    • 对于其输出对应于使用前两个数模转换器(DAC)的第一偏振分量的第一I / Q调制器执行归零(RZ)整形,其中每一个被调制大约是调制符号率的两倍 或具有具有交织第一对预期驱动信号模式和零之一的第一交错顺序的输出。 还对第二I / Q调制器执行RZ整形,其第二I / Q调制器的输出对应于使用第二两个DAC的第二偏振分量,每个DAC以大约两倍的调制符号速率被采样,并且具有第二交织顺序,交织零和一个 第二对预期驱动信号模式,第二交织顺序与第一交错顺序相反。 可以组合第一偏振和第二偏振,从而形成交错回零(IRZ)偏振分复用(PDM)信号。
    • 27. 发明申请
    • PILOT-ASSISTED DATA TRANSMISSION IN A COHERENT OPTICAL-COMMUNICATION SYSTEM
    • 在相关的光通信系统中的辅助数据传输
    • US20120148255A1
    • 2012-06-14
    • US12964929
    • 2010-12-10
    • Xiang LiuChandrasekhar Sethumadhavan
    • Xiang LiuChandrasekhar Sethumadhavan
    • H04B10/04H04B10/00
    • H04L25/0226H04B10/50H04L25/0224
    • In one embodiment, an optical transmission system transmits data using a format according to which a data frame has two or more pilot-symbol blocks, each having a guard interval, and two or more payload-symbol blocks that are concatenated without a guard interval between them. The use of guard intervals in the pilot-symbol blocks helps the synchronization and channel-estimation procedures performed at a receiver of the optical transmission system to be robust in the presence of certain transmission impairments. The absence of guard intervals in the payload-symbol blocks helps to minimize the transmission overhead and thus achieve relatively high payload-data throughput. Pilot-symbol blocks have a structure that enables the receiver to determine channel-response characteristics for each data frame and then apply appropriate channel-response-compensation procedures to signals corresponding to the payload-symbol blocks of the frame to recover, with a relatively low bit-error rate, the data encoded in those signals.
    • 在一个实施例中,光传输系统使用格式来传输数据,根据该格式,数据帧具有两个或更多个导频符号块,每个导频符号块具有保护间隔,以及两个或更多个有效载荷符号块,其间没有保护间隔 他们。 在导频符号块中使用保护间隔有助于在存在某些传输损伤的情况下在光传输系统的接收机处执行的同步和信道估计过程是鲁棒的。 有效载荷符号块中没有保护间隔有助于最小化传输开销,从而实现相对较高的有效载荷数据吞吐量。 导频符号块具有使得接收机能够确定每个数据帧的信道响应特性的结构,然后对相应于该帧的有效载荷符号块的信号应用适当的信道响应 - 补偿程序以相对较低的频率 位错误率,这些信号中编码的数据。
    • 30. 发明申请
    • Apparatus and Method For Generating Frequency-Locked Optical Comb Sources
    • 用于产生频率锁定光梳组源的装置和方法
    • US20110170873A1
    • 2011-07-14
    • US12685470
    • 2010-01-11
    • Xiang LiuChandrasekhar SethumadhavanRobert William Tkach
    • Xiang LiuChandrasekhar SethumadhavanRobert William Tkach
    • H04J14/02H04B10/04
    • H04B10/506H01S3/0085H01S3/2383H04J14/02
    • Frequency-locked optical comb sources are provided that utilize recirculating frequency shifting based on frequency conversion in a modulator, together with a filter. The filter may be a wavelength notch filter and include a plurality of notches. An example apparatus includes a coupler, an I/Q modulator, and a filter. A first input of the coupler receives a first input optical carrier having a first frequency, and a second input of the coupler re receives a set of frequency-shifted carriers from the filter. The input optical carrier may have a plurality of frequencies. The I/Q modulator shifts the frequency of a first output of the coupler. The filter filters modulated output from the I/Q modulator thereby limiting the frequency-shifted carriers to be within an optical bandwidth. A second output of the coupler provides a plurality of frequency-locked carriers containing the first input optical carrier and the set of frequency-shifted carriers.
    • 提供了频率锁定的光梳源,其与滤波器一起利用基于调制器中的频率转换的再循环频移。 滤波器可以是波长陷波滤波器并且包括多个凹口。 示例性装置包括耦合器,I / Q调制器和滤波器。 耦合器的第一输入端接收具有第一频率的第一输入光载波,并且耦合器的第二输入端从滤波器接收一组频移载波。 输入光载波可以具有多个频率。 I / Q调制器移动耦合器的第一输出的频率。 滤波器对来自I / Q调制器的调制输出进行滤波,从而将频移载波限制在光带宽内。 耦合器的第二输出提供包含第一输入光载波和该组频移载波的多个锁频载波。