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    • 41. 发明申请
    • Segment-discriminating minimum classification error pattern recognition
    • 段鉴别最小分类误差模式识别
    • US20080181489A1
    • 2008-07-31
    • US11700664
    • 2007-01-31
    • Qiang FuXiaodong HeLi Deng
    • Qiang FuXiaodong HeLi Deng
    • G06K9/62
    • G06K9/6217G10L15/142
    • Pattern model parameters are updated using update equations based on competing patterns that are identical to a reference pattern except for one segment at a time that is replaced with a competing segment. This allows pattern recognition parameters to be tuned one segment at a time, rather than have to try to model distinguishing features of the correct pattern model as a whole, according to an illustrative embodiment. A reference pattern and competing patterns are divided into pattern segments. A set of training patterns are generated by replacing one of the pattern segments in the reference pattern with a corresponding competing pattern segment. For each of the training patterns, a pattern recognition model is applied to evaluate a relative degree of correspondence of the reference pattern with the pattern signal compared to a degree of correspondence of the training patterns with the pattern signal.
    • 基于与参考模式相同的竞争模式的更新方程来更新模式模型参数,除了一次被竞争的段替换的一个段。 这允许模式识别参数一次调整一个段,而不是根据说明性实施例而不必为整体模拟正确模式模型的区分特征。 参考模式和竞争模式分为模式段。 通过将参考图案中的一个图案片段替换为相应的竞争图案片段来生成一组训练图案。 对于每个训练模式,应用模式识别模型来评估参考模式与模式信号的相对程度,与训练模式与模式信号的对应程度相比较。
    • 43. 发明授权
    • Mode-locked laser method and apparatus
    • 锁模激光方法和装置
    • US07079558B2
    • 2006-07-18
    • US10999711
    • 2004-11-30
    • Faming XuQiang FuBrian RogersZhengyu ChenWentao Hu
    • Faming XuQiang FuBrian RogersZhengyu ChenWentao Hu
    • H01S3/98H01S3/13H01S3/00
    • H01S3/136H01S3/08H01S3/08045H01S3/1068H01S3/1109H01S3/1305H01S3/139
    • A method and apparatus for stabilizing the output of a mode-locked laser by monitoring the temporal behavior of the pulse train profile and controlling the laser cavity optical length and/or loss modulation frequency accordingly. A mismatch of the cavity optical length and the loss modulation frequency will yield a first characteristic noise condition on the laser beam pulse train when the optical length is too short for a given loss modulation frequency and a second, different noise condition when the optical length is too long. The laser beam is monitored and analyzed to determine which noise condition is present. The cavity optical length is adjusted accordingly by movement of one or more optical elements or by changing the index of refraction of one or more optical elements. In the alternative, or additionally, the loss modulation frequency can be adjusted to bring the laser back into mode lock.
    • 一种用于通过监视脉冲序列轮廓的时间特性并相应地控制激光腔光学长度和/或损失调制频率来稳定锁模激光器的输出的方法和装置。 当光学长度对于给定的损耗调制频率来说太短时,激光束脉冲串上的光学长度和损耗调制频率的不匹配将产生第一特征噪声条件,当光学长度为 太长。 监测和分析激光束以确定存在哪种噪声条件。 相应地通过一个或多个光学元件的移动或通过改变一个或多个光学元件的折射率来调整腔光学长度。 在替代方案中,或者另外,可以调整损耗调制频率以使激光器恢复模式锁定。
    • 45. 发明授权
    • Intra-cavity and inter-cavity harmonics generation in high-power lasers
    • 大功率激光器中腔内和腔间谐波的产生
    • US5943351A
    • 1999-08-24
    • US17342
    • 1998-02-02
    • Fuzheng ZhouQiang FuMichael Maikowski
    • Fuzheng ZhouQiang FuMichael Maikowski
    • G02F1/37G02F1/35H01S3/109H01S3/10
    • H01S3/109G02F2001/354G02F2001/3542
    • Intra-cavity and/or inter-cavity sub-resonators with dielectric coated mirrors have anti-reflection and high-reflection coatings to attain high efficiency third and higher order harmonics generation of laser radiation. Main-resonators and sub-resonators enhance the fundamental and harmonic oscillations, respectively, which result in high conversion efficiency of third harmonics and higher. Such improved lasing efficiency may be implemented in high power lasers for improved power performance to attain over 8 W of UV output power with a high repetition rate. The use of intra-cavity THG techniques provide high efficiency by using existing high intensities of the input fundamental frequencies available in the intra-cavity region of the laser to avoid damage to components of the laser, such as the laser crystal. The THG utilizes a double-pass and/or multi-pass arrangement, which results in about a 60% increase in output power compared to a single-pass configuration. Also, blocking of UV energy generated in a return pass is performed to eliminate damage by the UV to the components in the main cavity.
    • 具有介电涂层镜的腔内和/或腔间次谐振器具有抗反射和高反射涂层,以实现激光辐射的高效率三次谐波和高次谐波产生。 主谐振器和副谐振器分别增强了基波和谐波振荡,导致三次谐波的高转换效率和更高的谐波振荡。 这种改进的激光效率可以在高功率激光器中实现,以改善功率性能,以高重复率获得超过8W的UV输出功率。 使用腔内THG技术通过使用在激光器的腔内区域内可用的输入基频的现有高强度来避免损坏诸如激光晶体的激光器的部件,从而提供高效率。 THG采用双通和/或多通道布置,与单通配置相比,输出功率增加约60%。 此外,执行在返回通道中产生的UV能量的阻挡以消除UV对主腔中的部件的损伤。
    • 50. 发明授权
    • System and method for compact and combinable aerial vehicle capable of vertical/short takeoff and landing
    • 能够进行垂直/短时起飞和着陆的紧凑型和可组合式飞行器的系统和方法
    • US08936212B1
    • 2015-01-20
    • US12861986
    • 2010-08-24
    • Qiang FuXu Zhang
    • Qiang FuXu Zhang
    • B64C15/12
    • B64C37/02B64C3/56B64C29/0033B64C37/00B64C39/024B64C2201/021B64C2201/088B64C2201/102B64C2201/165Y02T50/14
    • System and method to construct vertical and/or short takeoff and landing (V/STOL) aerial vehicles capable of being folded into compact size, and capable of be combined with one or more such vehicles to form bigger composite aerial vehicles. Airframe of the vehicle comprises a plurality of wings on lateral or periphery of thrust generators, wherein arrangements of wings make it possible to optionally fold wings without moving thrust generators. Folding transforms such vehicles into ground vehicles which can share roads and house parking lots with conventional ground vehicles. Therefore such vehicles can be used as V/STOL flying cars. Means are provided for attaching to and detaching from one or more similarly equipped vehicles in flight or before takeoff, so that multiple vehicles can form a large composite vehicle. Compactness, combinability and V/STOL capability enable versatile applications.
    • 构建能够折叠成紧凑尺寸的垂直和/或短起飞(V / STOL)飞行器的系统和方法,并且能够与一个或多个这样的车辆组合以形成更大的复合飞行器。 车辆的机身包括在推力发生器的侧面或周边上的多个翼,其中翼的布置使得可以可选地折叠翼而不移动推力发生器。 折叠将这种车辆转换成可与常规地面车辆共享道路和房屋停车场的地面车辆。 因此,这种车辆可以用作V / STOL飞行车。 提供了用于在飞行中或起飞之前附接和分离一个或多个类似装备的车辆的装置,使得多个车辆可以形成大型复合车辆。 紧凑性,组合性和V / STOL功能可实现多种应用。