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    • 45. 发明申请
    • OPTICAL MOTION SENSING PROCESS
    • 光学运动感应过程
    • US20100067746A1
    • 2010-03-18
    • US11720828
    • 2006-04-27
    • Jian LiuShuwei Hou
    • Jian LiuShuwei Hou
    • G06K9/00
    • G06F3/038G06F3/03543
    • A motion sensing process senses a mouse moving relative to a surface by taking a reference image and a sample image of the surface. The process shifts the reference image to neighboring pixel positions arranged in certain patterns and compares the sample image with the reference image at its original pixel position at the shifted pixel positions. A motion vector describing a displacement of the object with respect to the surface is generated from such comparisons. In one embodiment, the pattern includes the original pixel position and neighboring pixel position arranged five rows and five columns with the total number of the pixel positions less than twenty five. In another embodiment, the process selects one of four elongated patterns based on the orientation of a predicted motion vector. In yet another specific embodiment, the process selects one of eight directional patterns based on the direction of the predicted motion vector.
    • 运动感测过程通过拍摄表面的参考图像和样本图像来感测鼠标相对于表面的移动。 该处理将参考图像移动到以某些图案排列的相邻像素位置,并将样本图像与其移位像素位置处的原始像素位置处的参考图像进行比较。 从这样的比较生成描述物体相对于表面的位移的运动矢量。 在一个实施例中,图案包括原始像素位置和布置成五行和五列的相邻像素位置,其中像素位置的总数小于二十五。 在另一个实施例中,该过程基于预测运动矢量的取向来选择四个细长图案之一。 在另一具体实施例中,该过程基于预测运动矢量的方向选择八个方向图中的一个。
    • 46. 发明申请
    • FAN HOLDER
    • 风扇座
    • US20100051230A1
    • 2010-03-04
    • US12202403
    • 2008-09-01
    • Jian LiuJun Luo
    • Jian LiuJun Luo
    • F28F7/00
    • H01L23/427H01L23/467H01L2924/0002H01L2924/00
    • A fan holder used to secure a fan to a heat dissipation device, includes a main body for mounting the fan thereon, a pair of blocking wings and a pair of baffle walls extending from the main body to define a space for receiving the fan therein. The blocking wings each include a pair of locking protrusions engaging in the fan to prevent the fan from moving vertically. The baffle walls each includes a pair of blocking flanges fittingly received in cutouts defied in the fan to prevent the fan from moving horizontally along a lateral direction of the fan holder. The baffle walls engage with front and rear sides of the fan for preventing the fan from moving along a front-to-rear direction.
    • 用于将风扇固定到散热装置的风扇架包括:用于将风扇安装在其上的主体,一对阻挡翼和从主体延伸的一对挡板,以限定用于在其中容纳风扇的空间。 阻挡翼各自包括一对接合在风扇中的锁定突起,以防止风扇垂直移动。 挡板壁每个包括一对阻挡凸缘,其适合地接收在风扇中的缺口中,以防止风扇沿风扇保持器的横向方向水平移动。 挡板壁与风扇的前侧和后侧接合,以防止风扇沿着前后方向移动。
    • 47. 发明授权
    • Hybrid high power laser to achieve high repetition rate and high pulse energy
    • 混合大功率激光器实现高重复率和高脉冲能量
    • US07590155B2
    • 2009-09-15
    • US11198078
    • 2005-08-04
    • Jian Liu
    • Jian Liu
    • H01S3/30
    • H01S3/06754G02B6/4214H01S3/0632H01S3/06708H01S3/08009H01S3/094007H01S3/094019H01S3/0941H01S3/1618H01S3/2308H01S2301/02H01S2301/03
    • A fiber laser cavity that provides a new pulse shaping and spectral shaping technique is disclosed in this invention to achieve the purpose of resolving the difficulties arising from the issues related to Q-switched solid state lasers. The laser system achieves high repetition rate (1 kHz-100 kHz) and high pulse-to-pulse energy stability with small timing jitter of the laser pulses and scalable to the Joule pulse energy level. The laser system of this invention employs new approach with a hybrid fiber/waveguide master Oscillator-High Power Amplifier (MOPA) laser system in combination with the pulse shaping technology that allows not only to scale the fiber laser pulse energy to the multi-Joule level with high pulse-to-pulse energy stability but also achieve precise control of laser pulse timing jitter in a scale of
    • 在本发明中公开了提供新的脉冲整形和频谱整形技术的光纤激光腔,以实现解决与Q开关固体激光器有关的问题所引起的困难的目的。 激光系统实现了高重复率(1 kHz-100 kHz)和高脉冲到脉冲能量稳定性,激光脉冲的定时抖动小,并可扩展到焦耳脉冲能级。 本发明的激光系统采用混合光纤/波导主振荡器 - 大功率放大器(MOPA)激光系统的新方法,与脉冲整形技术相结合,不仅可以将光纤激光脉冲能量缩放到多焦耳级 具有高的脉冲到脉冲能量稳定性,但也可以实现精确控制激光脉冲定时抖动,其规模小于100 ps,比相同参数达到500-1000的Q开关系统至少要5到10倍精度 ps范围。
    • 50. 发明申请
    • FIBER-BASED TUNABLE LASER
    • 光纤激光器
    • US20090041062A1
    • 2009-02-12
    • US12100669
    • 2008-04-10
    • Jian Liu
    • Jian Liu
    • H01S3/10H01S3/30
    • H01S3/0057G02B6/29361G02B6/29395G02B6/4215
    • A fiber-based tunable laser includes a spectrum-expansion device comprising a micro structured fiber configured to receive a pump laser pulse having a first band width and a first pulse energy, and to produce a spectrally expanded laser pulse having a second band width at least two times broader than the first band width. The fiber-based tunable laser also includes a combiner that can couple the pump laser pulse into the spectrum-expansion device and a filter that can select a signal laser wavelength within the second band width and to produce a signal laser pulse at the signal laser wavelength. The signal laser pulse has a third band width narrower than the second band width. One or more cavity fibers allow propagation of the spectrally expanded laser pulse and the signal laser pulse between the spectrum-expansion device and the filter.
    • 基于光纤的可调谐激光器包括频谱扩展装置,其包括被配置为接收具有第一带宽和第一脉冲能量的泵浦激光脉冲的微结构光纤,并且产生具有至少第二带宽的光谱扩展的激光脉冲 比第一个带宽宽两倍。 基于光纤的可调谐激光器还包括可以将泵激光脉冲耦合到频谱扩展装置中的组合器和可以在第二带宽内选择信号激光波长并且以信号激光波长产生信号激光脉冲的滤波器 。 信号激光脉冲具有比第二带宽窄的第三带宽。 一个或多个空腔光纤允许频谱扩展的激光脉冲和信号激光脉冲在频谱扩展装置和滤波器之间传播。