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61. 发明申请

US20090084985A1 Cadmium sulfide quantum dot lasing in room temperature liquid solution 有权
标题翻译：硫化镉量子点激光在室温液体溶液中
公开(公告)号：US20090084985A1
公开(公告)日：2009-04-02
申请号：US12215158
申请日：2008-06-25
申请人： Moustafa A. El-Sayed , Wei Qian , Qusai Darugar
发明人： Moustafa A. El-Sayed , Wei Qian , Qusai Darugar
IPC分类号： H01L21/268
CPC分类号： H01S3/20 , H01S3/169
摘要： Disclosed is a lasing complex comprising a room temperature solution containing cadmium sulfide (CdS) quantum dots. Optical gain has been observed in CdS nanocrystal quantum dots in strong confinement regime in toluene solution at room temperature using femtosecond transient absorption techniques. The optical gain lifetime is measured to be 20 picoseconds under pump fluence of 0.77 mJ/cm2. The relative lower gain threshold compared to that of CdSe quantum dots is attributed to the long lifetime of fluorescence and biexcitons and the relatively sharp photoluminescence linewidth. The CdS nanocrystals are excellent gain media for semiconductor quantum dot based blue lasers.
摘要翻译：公开了包含含有硫化镉（CdS）量子点的室温溶液的激光复合物。在室温下使用飞秒瞬态吸收技术，在甲苯溶液中的强限制状态下，在CdS纳米晶体量子点中观察到光增益。在0.77mJ / cm 2的泵浦注量下，光学增益寿命测量为20皮秒。与CdSe量子点的相对较低的增益阈值归因于荧光和双键的长寿命和相对尖锐的光致发光线宽。 CdS纳米晶体是用于半导体量子点的蓝色激光器的极好的增益介质。

62. 发明申请

US20080166035A1 Computer-Aided Pathological Diagnosis System 有权
标题翻译：计算机辅助病理诊断系统
公开(公告)号：US20080166035A1
公开(公告)日：2008-07-10
申请号：US11772288
申请日：2007-07-02
申请人： Wei Qian , Dansheng Song , Tatyana Zhukov
发明人： Wei Qian , Dansheng Song , Tatyana Zhukov
IPC分类号： G06K9/00
CPC分类号： G06T7/0012 , G06K9/0014 , G06K9/00147 , G06T2207/30024 , G06T2207/30061
摘要： The present invention is a computer-aided pathological diagnosis method for the classification of cancer cells in a tissue specimen based on a digital cellular image of the tissue specimen. The method of the present invention includes the steps of, extracting the histological characteristic features of the cellular image using preprocessing algorithms having adaptive strategies to enhance the cellular image, declustering the extracted histological characteristic features of the cellular image to isolate the individual cells and the nuclei inside the cells, segmenting the declustered cellular image, labeling the segmented cellular image and classifying the cells in the labeled cellular image as cancer cells or non-cancer cells.
摘要翻译：本发明是一种计算机辅助病理诊断方法，用于根据组织标本的数字细胞图像对组织标本中的癌细胞进行分类。本发明的方法包括以下步骤：使用具有增强细胞图像的自适应策略的预处理算法来提取细胞图像的组织学特征，对提取的细胞图像的组织学特征进行分解以分离各个细胞和细胞核在细胞内，分割去分解的细胞图像，标记分割的细胞图像并将标记的细胞图像中的细胞分类为癌细胞或非癌细胞。

63. 发明申请

US20080067970A1 INDUCTION MOTOR CONTROLLER 有权
标题翻译：感应电动机控制器
公开(公告)号：US20080067970A1
公开(公告)日：2008-03-20
申请号：US11932624
申请日：2007-10-31
申请人： Wei Qian , Haihui Lu , Thomas Nondahl
发明人： Wei Qian , Haihui Lu , Thomas Nondahl
IPC分类号： H02P23/14
CPC分类号： H02P23/14 , H02P27/16 , Y10S388/917
摘要： An induction motor controller that may include three phase paths leading from a power input to a power output, a solid-state switching device interposed between the power input and the power output on each of the three phase paths, a voltage sensor coupled to two of the phase paths between the solid-state switching device and the power output, a current sensor on one of the phase paths, a processor communicatively coupled to the voltage sensor, the current sensor, and the solid state switching device; and a memory coupled to the processor. The processor may be configured to calculate a motor parameter based on a signal from the voltage sensor and a signal from the current sensor and store the calculated motor parameter in memory.
摘要翻译：一种感应电动机控制器，其可以包括从电力输入到功率输出的三相路径，插在电源输入端和三相路径中的每一个上的功率输出端之间的固态开关装置，固态开关器件和功率输出之间的相位路径，一个相位路径上的电流传感器，通信地耦合到电压传感器，电流传感器和固态开关器件的处理器; 以及耦合到处理器的存储器。处理器可以被配置为基于来自电压传感器的信号和来自电流传感器的信号来计算电动机参数，并将计算的电动机参数存储在存储器中。

64. 发明授权

US07005247B1 Controlled selectivity etch for use with optical component fabrication 有权
标题翻译：用于光学元件制造的受控选择性蚀刻
公开(公告)号：US07005247B1
公开(公告)日：2006-02-28
申请号：US10345709
申请日：2003-01-15
申请人： Joan Fong , Wei Qian , Dawei Zheng , Zhian Shao , Lih-Jou Chung , Xiaoming Yin
发明人： Joan Fong , Wei Qian , Dawei Zheng , Zhian Shao , Lih-Jou Chung , Xiaoming Yin
IPC分类号： G03F7/26
CPC分类号： G02B6/12011 , G02B6/12016 , G02B6/138 , G02B2006/12097 , G02B2006/121
摘要： A method of fabricating an optical component includes forming a mask on an optical component precursor. The method also includes etching through at least a portion of the mask so as to etch an underlying medium concurrently with remaining mask and transfer a feature of an upper surface of the mask onto an upper surface of the underlying medium. The etch can be configured such that a ratio of the underlying medium etch rate to the mask etch rate is less than about 1.5:1. In some instances, the underlying medium is silicon and the mask is a photoresist.
摘要翻译：制造光学部件的方法包括在光学部件前体上形成掩模。该方法还包括蚀刻通过掩模的至少一部分，以便与剩余的掩模同时蚀刻下面的介质，并将掩模的上表面的特征转移到下面的介质的上表面上。蚀刻可以被配置为使得下面的介质蚀刻速率与掩模蚀刻速率的比值小于约1.5:1。在一些情况下，下面的介质是硅，掩模是光致抗蚀剂。

65. 发明授权

US06868050B1 Calibration method for writing to optical media 有权
标题翻译：用于写入光学介质的校准方法
公开(公告)号：US06868050B1
公开(公告)日：2005-03-15
申请号：US09639376
申请日：2000-08-15
申请人： Paul Phuc Tran , Wei Qian
发明人： Paul Phuc Tran , Wei Qian
IPC分类号： G11B7/007 , G11B7/125 , G11B7/00 , G11B5/09
CPC分类号： G11B7/1267 , G11B7/00736
摘要： The present invention provides a method and system for calibration of writing to an optical medium. The method includes: sampling marks in a calibration area of the optical medium; and converting the sampled marks into a digital format utilizing an ADC, the ADC also utilized by a servo control. The present invention provides a controller with an integrated servo and recording processor which allows a single ADC to be used for converting sample marks used in calibrating the writing to an optical media. No separate subsystem for converting sample marks is thus necessary. Less components are required, reducing the cost of manufacturing the controller. With less components, the risk of component failure is reduced as well.
摘要翻译：本发明提供了一种用于校准写入光学介质的方法和系统。该方法包括：在光学介质的校准区域中采样标记; 并使用ADC将采样标记转换为数字格式，ADC也由伺服控制使用。本发明提供一种具有集成伺服和记录处理器的控制器，其允许单个ADC用于将用于校准写入的采样标记转换为光学介质。因此，不需要用于转换样品标记的独立子系统。需要较少的部件，降低制造控制器的成本。使用较少的组件，组件故障的风险也会降低。

66. 发明授权

US5987094A Computer-assisted method and apparatus for the detection of lung nodules 失效
标题翻译：用于检测肺结节的计算机辅助方法和装置
公开(公告)号：US5987094A
公开(公告)日：1999-11-16
申请号：US960815
申请日：1997-10-30
申请人： Laurence P. Clarke , Wei Qian , Fei Mao
发明人： Laurence P. Clarke , Wei Qian , Fei Mao
IPC分类号： G01N23/04 , G06T7/00
CPC分类号： G01N23/046 , G06T7/0012 , G01N2223/419 , G01N2223/612
摘要： A computer-assisted diagnostic (CAD) method and apparatus are described for the enhancement, detection, and classification of suspicious regions in digital x-ray images, with particular emphasis on lung nodule detection using chest x-ray images. An objective is to improve the sensitivity and specificity of detection of suspicious areas such as nodules, while maintaining a low false positive detection rate. A modular CAD technique has been developed to be potentially automatic and to be used as a second-opinion method for lung nodule detection. The method consists of using a plurality of CAD modules to preprocess and enhance image features, including image preprocessing, selective enhancement, segmentation, and feature extraction using a multiresolution/multiorientation wavelet transform and a computationally efficient filter, a 1.5 D circular pattern filter.
摘要翻译：描述了用于数字X射线图像中可疑区域的增强，检测和分类的计算机辅助诊断（CAD）方法和装置，特别强调使用胸部X射线图像的肺结节检测。目的是提高检测结节等可疑区域的敏感性和特异性，同时保持较低的假阳性检出率。已经开发出模块化CAD技术可能是自动的，并且被用作肺结核检测的第二种方法。该方法包括使用多个CAD模块来预处理和增强图像特征，包括图像预处理，选择性增强，分割和使用多分辨率/多向导小波变换和计算有效的滤波器，1.5D圆形图案滤波器的特征提取。

67. 发明授权

US5825936A Image analyzing device using adaptive criteria 失效
标题翻译：图像分析装置采用自适应标准
公开(公告)号：US5825936A
公开(公告)日：1998-10-20
申请号：US730574
申请日：1996-10-15
申请人： Laurence P. Clarke , Wei Qian , Maria Kallergi
发明人： Laurence P. Clarke , Wei Qian , Maria Kallergi
IPC分类号： G06T5/00 , G06T7/00 , G06K9/40 , G06K9/00
CPC分类号： G06T7/0012 , G06T5/002 , G06T5/008 , G06T2207/20084 , G06T2207/30068
摘要： A hybrid filter architecture and an artificial neural network is proposed for image enhancement and detection of suspicious areas in digital x-ray images that is operator, image, and digital x-ray sensor independent. The hybrid filter architecture includes an Adaptive Multistage Nonlinear Filter (AMNF) cascaded with an M-channel Tree Structured Wavelet Transform (TSWT). The AMNF shares the advantages of an array of linear and nonlinear filters and is adaptively supervised using either an order statistic or linear operator. The filter is used for noise suppression and image enhancement and adapts to the noise characteristics of the sensor. The TSWT is used for multiresolution image decomposition and reconstruction of subimages for further image enhancement of diagnostic features of interest. A Multistage Artificial Neural Network (MANN) is proposed, together with Kalman Filtering for network training, for both improved detection or classification of suspicious areas and computational efficiency to allow the MANN to be applied to full digital images without operator input. The hybrid filter architecture and MANN may be applied to any gray scale image in medical imaging. The specific application of the proposed method includes: (a) improved enhancement or detection of suspicious areas as a "second opinion" strategy using a computer workstation or (b) mass screening of large image databases such as that used for medical screening programs.
摘要翻译：提出了一种混合滤波器结构和人工神经网络，用于图像增强和检测数字X射线图像中的可疑区域，这是运算符，图像和数字X射线传感器独立的。混合滤波器架构包括与M通道树结构小波变换（TSWT）级联的自适应多级非线性滤波器（AMNF）。 AMNF拥有一系列线性和非线性滤波器的优点，并使用阶数统计量或线性算子进行自适应监控。滤波器用于噪声抑制和图像增强，并适应传感器的噪声特性。 TSWT用于多分辨率图像分解和重建子图像，以进一步增强感兴趣的诊断特征。提出了一种多级人工神经网络（MANN），连同用于网络训练的卡尔曼滤波，用于改进可疑区域的检测或分类以及计算效率，以允许将MANN应用于全数字图像而无需操作员输入。混合滤波器结构和MANN可以应用于医学成像中的任何灰度图像。提出的方法的具体应用包括：（a）使用计算机工作站将可疑区域的改进增强或检测作为“第二意见”策略，或（b）大规模图像数据库的筛选，例如用于医学筛查程序的方法。

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