会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 发明授权
    • Methods and systems for detection of selected defects particularly in relatively noisy inspection data
    • 用于检测选定缺陷的方法和系统,特别是在相对嘈杂的检查数据中
    • US07373277B1
    • 2008-05-13
    • US10858420
    • 2004-06-01
    • Sean WuHaiguang ChenMichael D. Kirk
    • Sean WuHaiguang ChenMichael D. Kirk
    • G06F11/30
    • G06T7/0006G01N21/8851G01N21/9501G06T2207/10056G06T2207/20061G06T2207/30148
    • Various methods and systems for detection of selected defects particularly in relatively noisy inspection data are provided. One method includes applying a spatial filter algorithm to raw inspection data acquired across an area on a substrate to determine a first portion of the raw inspection data that has a higher probability of being a selected type of defect than a second portion of the raw inspection data. The selected type of defect includes a non-point defect. The method also includes generating a raw two-dimensional map illustrating the first portion of the raw inspection data. In addition, the method includes searching the raw two-dimensional map for an event that has spatial characteristics that approximately match spatial characteristics of the selected type of defect. The method further includes determining if the event corresponds to a defect having the selected type.
    • 提供用于检测所选缺陷的各种方法和系统,特别是在相对嘈杂的检查数据中。 一种方法包括将空间滤波器算法应用于跨越衬底上的区域获取的原始检查数据,以确定原始检查数据的第一部分与原始检查数据的第二部分相比具有较高选择类型的缺陷概率 。 所选择的缺陷类型包括非点缺陷。 该方法还包括生成示出原始检查数据的第一部分的原始二维映射。 此外,该方法包括搜索原始二维地图中具有与所选择的缺陷类型的空间特征近似匹配的空间特征的事件。 该方法还包括确定事件是否对应于具有所选类型的缺陷。
    • 5. 发明申请
    • Reconstruction of transient acoustic radiation from a finite object subject to arbitrarily time-dependent excitation
    • 从有限的物体重新构造瞬态声辐射,经受任意时间依赖的激发
    • US20050150299A1
    • 2005-07-14
    • US10754036
    • 2004-01-08
    • Sean Wu
    • Sean Wu
    • G06F17/50G01N29/00
    • G06F17/5018
    • General algorithms are developed for reconstructing the acoustic field generated by an arbitrary object subject to an arbitrarily time-dependent excitation. These algorithms enable one to visualize a time-domain acoustic pressure wave as it travels through three-dimensional space. Such a tool can be used to diagnose general noise sources and transmission since in engineering applications most structures are subject to arbitrarily time-dependent excitations. To facilitate the derivations of the temporal solutions, we make use of Laplace transform and expand the acoustic pressure in terms of the spherical Hankel functions and the spherical harmonics. The expansion coefficients are settled by solving an over-determined system of equations obtained by matching the assumed-form solutions to the measured acoustic pressures. To obtain a general expression for a temporal kernel, we replace the spherical Hankel functions by polynomials in s, recast the infinite integral in the inverse Laplace transform as a contour integral in the complex s-plane, and evaluate it via residue theorem. Once this is done, the transient acoustic quantities anywhere including a source surface can be obtained by convoluting the temporal kernels with respect to measured acoustic pressures.
    • 开发了用于重建由任意时间依赖激励的任意对象产生的声场的通用算法。 这些算法使得人们可以在时域声压波行进三维空间时可视化。 这种工具可用于诊断通用噪声源和传输,因为在工程应用中,大多数结构都受到任意时间相关的激励。 为了促进时间解的推导,我们利用拉普拉斯变换,并根据球面汉克尔函数和球谐函数扩展声压。 扩展系数通过求解通过将假定形式解与匹配的声压获得的方程式的过度确定系统来确定。 为了获得时间核的一般表达式,我们用s中的多项式代替球面汉克尔函数,将反拉普拉斯变换中的无限积分重写为复S平面中的轮廓积分,并通过残差定理进行评估。 一旦这样做,包括源表面在内的任何地方的瞬态声量可以通过相对于测量的声压卷积时间核来获得。
    • 7. 发明授权
    • Methods and systems for detection of selected defects particularly in relatively noisy inspection data
    • 用于检测选定缺陷的方法和系统,特别是在相对嘈杂的检查数据中
    • US07711521B1
    • 2010-05-04
    • US12119179
    • 2008-05-12
    • Sean WuHaiguang ChenMichael D. Kirk
    • Sean WuHaiguang ChenMichael D. Kirk
    • G06F11/30
    • G06T7/0006G01N21/8851G01N21/9501G06T2207/10056G06T2207/20061G06T2207/30148
    • Various methods and systems for detection of selected defects particularly in relatively noisy inspection data are provided. One method includes applying a spatial filter algorithm to raw inspection data acquired across an area on a substrate to determine a first portion of the raw inspection data that has a higher probability of being a selected type of defect than a second portion of the raw inspection data. The selected type of defect includes a non-point defect. The method also includes generating a raw two-dimensional map illustrating the first portion of the raw inspection data. In addition, the method includes searching the raw two-dimensional map for an event that has spatial characteristics that approximately match spatial characteristics of the selected type of defect. The method further includes determining if the event corresponds to a defect having the selected type.
    • 提供用于检测所选缺陷的各种方法和系统,特别是在相对嘈杂的检查数据中。 一种方法包括将空间滤波器算法应用于跨越衬底上的区域获取的原始检查数据,以确定原始检查数据的第一部分与原始检查数据的第二部分相比具有较高选择类型的缺陷概率 。 所选择的缺陷类型包括非点缺陷。 该方法还包括生成示出原始检查数据的第一部分的原始二维映射。 此外,该方法包括搜索原始二维地图中具有与所选择的缺陷类型的空间特征近似匹配的空间特征的事件。 该方法还包括确定事件是否对应于具有所选类型的缺陷。
    • 8. 发明申请
    • Panel acoustic contributions examination
    • 小组声学贡献检查
    • US20070189550A1
    • 2007-08-16
    • US11354214
    • 2006-02-14
    • Sean Wu
    • Sean Wu
    • H04B15/00
    • H04R3/02G01H3/125H04R2499/13
    • A system for analyzing noise sources correlates the sound pressure level value at any field point to the acoustic energy directly flowing out of any individual panel of a vibrating structure. This acoustic energy flow or acoustic intensity depicts how sound radiates and in which direction a sound wave propagates in the field. Therefore, the result represents a true contribution of an individual panel to an acoustic field. The acoustic intensity on the surface of a vibrating object is reconstructed by the Helmholtz equation least squares (HELS) based nearfield acoustical holography (NAH). The acoustic intensity is utilized to establish correlations between user-designated panels and the SPL value at any field point. With this information users can rank the order of contributions from individual panels of any vibrating structure to an acoustic field. These order ranking and panel contribution analyses help engineers to come up the best strategy to tackle various noise issues in the most cost-effective manner. The method is applicable to both interior and exterior regions.
    • 用于分析噪声源的系统将任何场点处的声压级值与直接从振动结构的任何单独面板流出的声能相关联。 这种声能流或声强描述了声波在声场中的辐射方向以及声波传播方向。 因此,结果表明单个面板对声场的真正贡献。 振动物体表面的声强度由基于亥姆霍兹方程最小二乘法(HELS)的近场声全息(NAH)重建。 声强度用于建立用户指定面板与任何场点SPL值之间的相关性。 有了这些信息,用户可以将任何振动结构的单个面板的贡献顺序排列到声场。 这些订单排名和面板贡献分析帮助工程师以最具成本效益的方式制定出最佳策略来解决各种噪音问题。 该方法适用于内外区域。
    • 10. 发明申请
    • NON-INVASIVE VIBRO-ACOUSTIC ANALYSIS
    • 非入侵振动分析
    • US20070163351A1
    • 2007-07-19
    • US11564945
    • 2006-11-30
    • Sean Wu
    • Sean Wu
    • G01H11/00
    • G01H1/003G01H3/00G01H17/00
    • A system provides an in situ or non-invasive vibro-acosutic (VA) analysis of an arbitrary complex vibrating structure. The major advantages of this system are that: (1) it allows for an identification of the VA modes that are directly responsible for structural vibration and sound radiation; (2) it enables one to acquire a quantitative description of contributions from individual VA modes that are responsible for resultant structural vibration and sound radiation; and (3) it is non-invasive so that one can conduct an in situ analysis of a machine running under its natural working condition. With this information, one can tackle noise and vibration problems in the most cost-effective manner.
    • 系统提供任意复杂振动结构的原位或非侵入性振动 - 辅助(VA)分析。 该系统的主要优点是:(1)允许识别直接负责结构振动和声辐射的VA模式; (2)它能够从负责结构振动和声辐射的各个VA模式获得定量描述; (3)非侵入性,可以对自然工作条件下运行的机器进行现场分析。 通过这些信息,可以以最具成本效益的方式解决噪声和振动问题。