公开(公告)号：US06823089B1

公开(公告)日：2004-11-23

申请号：US09672658

申请日：2000-09-28

申请人： Qing Yu ,  Jiebo Luo

发明人： Qing Yu ,  Jiebo Luo

IPC分类号： G06K940

CPC分类号： G06T5/10 ,  G06T5/002 ,  G06T5/003 ,  G06T2207/20056 ,  H04N19/60 ,  H04N19/86 ,  H04N19/865

摘要： A digital image processing determining the extent of blocking and contouring artifacts in a digital image includes the steps of: determining the extent of blocking artifacts using the column and row difference arrays; determining the extent of contouring artifacts based on an estimated DC quantization step size; and, determining a composite artifact measure as a function of the extent of blocking artifacts and extent of contouring artifacts. A digital image processing method determining the extent of contouring artifacts in the digital image includes the steps of: forming a column difference image; averaging the values in the columns in the column difference image to produce a column difference array; computing the average of the values in the column difference array that are separated by one block width to produce a block averaged column difference array; locating the peak value in the block averaged column difference array; repeating the above mentioned steps in the row direction; locating block boundaries based on the locations of peak values of column and row difference arrays; calculating DC value for each block; generating a histogram of the block DC values; calculating the Fourier transform of the histogram; locating the first non-DC peak in the Fourier transform domain; calculating a DC quantization step size based on the frequency of the first non-DC peak; and, employing the DC quantization step size as a measure of the extent of the contouring artifacts in the digital image.

摘要翻译： 确定数字图像中的阻塞和轮廓伪迹的程度的数字图像处理包括以下步骤：使用列和行差分阵列确定块伪影的程度; 基于估计的DC量化步长确定轮廓伪迹的程度; 以及确定作为块伪影程度和轮廓伪像程度的函数的复合伪像度量。 确定数字图像中的轮廓伪迹的程度的数字图像处理方法包括以下步骤：形成列差分图像; 对列差分图像中的列进行平均，以产生列差数组; 计算列差分阵列中由一个块宽度分隔的值的平均值，以产生块平均列差分阵列; 将峰值定位在块平均列差数组中; 在行方向重复上述步骤; 基于列和行差分阵列的峰值位置定位块边界; 计算每个块的DC值; 产生块DC值的直方图; 计算直方图的傅里叶变换; 将傅立叶变换域中的第一非DC峰定位; 基于所述第一非DC峰值的频率计算DC量化步长; 并且使用DC量化步长作为数字图像中的轮廓伪像的程度的度量。

公开(公告)号：US08832844B2

公开(公告)日：2014-09-09

申请号：US12959241

申请日：2010-12-02

申请人： Qing Yu ,  Jieyang Xu ,  Ding Lu

发明人： Qing Yu ,  Jieyang Xu ,  Ding Lu

IPC分类号： G06F7/04 ,  H04N21/426 ,  H04N5/268 ,  H04N21/438

CPC分类号： H04N5/268 ,  H04N21/4263 ,  H04N21/4384

摘要： A system and a method are disclosed for enabling fast switching in a multimedia interface system having content protection. By using a partial port receiver to decode a portion of the input at input ports that are not being output to a multimedia sink, the design of the switching system is simplified and silicon costs are reduced. Additionally, the switching system and method reduces the switching delay by maintaining content protection signaling with all of the input ports. This eliminates the need for re-authentication when a new multimedia source is selected.

摘要翻译： 公开了一种用于能够快速切换具有内容保护的多媒体接口系统的系统和方法。 通过使用部分端口接收器来解码输入端口上未输出到多媒体接收器的部分输入，可以简化交换系统的设计并降低硅成本。 此外，切换系统和方法通过与所有输入端口保持内容保护信令来减少切换延迟。 当选择新的多媒体源时，这样不需要重新认证。

公开(公告)号：US20120076983A1

公开(公告)日：2012-03-29

申请号：US12893179

申请日：2010-09-29

申请人： Qing Yu ,  Gregory Palm

发明人： Qing Yu ,  Gregory Palm

IPC分类号： B32B33/00 ,  B32B3/00 ,  C08F210/00 ,  B32B5/00

摘要： An interior surface panel such as a ceiling tile is free of PVC materials and otherwise possesses desirable properties that make it suitable for installation in a variety of environments including schools, household and commercial kitchens and healthcare facilities. The panel can include a base mat and a facing material of a polyolefin or polyester polymer or copolymer bonded to the base mat. The facing material is resistant to ultraviolet light and possesses superior scrubbability. The PVC-free facing has a preferred thickness, opacity and surface roughness and a texture pattern that is non-directional and discontinuous. In an embodiment in which the PVC-free facing is white, it has a preferred light reflectance. The PVC-free facing is resistant to deformation under tension. In addition, the facing has low anisotropy; that is, the facing exhibits minimal differences in its physical properties in different directions. The facing also has good dimensional stability.

摘要翻译： 诸如天花板瓦的内表面板不含PVC材料，否则具有所需的性能，使其适合于安装在各种环境中，包括学校，家庭和商业厨房以及保健设施。 面板可以包括基底垫和粘合到基底垫的聚烯烃或聚酯聚合物或共聚物的面层材料。 表面材料耐紫外线，具有优异的擦洗性。 无PVC面具有优选的厚度，不透明度和表面粗糙度以及非定向和不连续的纹理图案。 在不含PVC的面是白色的实施例中，其具有优选的光反射率。 无PVC面料抗张力变形。 另外面对面的各向异性低; 也就是说，面对物体的物理特性在不同方向上呈现最小差异。 面料也具有良好的尺寸稳定性。

公开(公告)号：US20110137886A1

公开(公告)日：2011-06-09

申请号：US12632821

申请日：2009-12-08

申请人： Ji-Rong Wen ,  Guomao Xin ,  Yunxiao Ma ,  Yu Chen ,  Qing Yu ,  Yi Liu ,  Zhicheng Dou ,  Shuming Shi

发明人： Ji-Rong Wen ,  Guomao Xin ,  Yunxiao Ma ,  Yu Chen ,  Qing Yu ,  Yi Liu ,  Zhicheng Dou ,  Shuming Shi

IPC分类号： G06F17/30

CPC分类号： G06F16/951

摘要： Described is a data-centric web search engine technology/architecture, in which document metadata, including offline-extracted metadata, is used as part of a search indexing and ranking pipeline. A web data management component receives crawled documents and extracts document metadata from the documents. An indexing component uses the document metadata to build an index for the documents. A serving component uses the index and the document metadata to serve content, e.g., search results. Also described is the use of query metadata extracted from queries of a query log for use in the pipeline.

摘要翻译： 描述了以数据为中心的网络搜索引擎技术/架构，其中包括离线提取的元数据的文档元数据被用作搜索索引和排序流水线的一部分。 Web数据管理组件接收爬取的文档并从文档中提取文档元数据。 索引组件使用文档元数据构建文档的索引。 服务组件使用索引和文档元数据来提供内容，例如搜索结果。 还描述了使用从查询日志的查询中提取的查询元数据用于流水线。

公开(公告)号：US07956856B2

公开(公告)日：2011-06-07

申请号：US11675510

申请日：2007-02-15

申请人： Qing Yu ,  Ding Lu

发明人： Qing Yu ,  Ding Lu

IPC分类号： G09G5/00

CPC分类号： H04N5/775 ,  G06F3/14 ,  G09G5/006 ,  G09G5/18 ,  G09G2340/0407

摘要： A method and system for reading data from a link buffer for output to a display device. A link buffer read period is determined which balances a write throughput over a source video frame time and a read throughput over a display frame time. A threshold is determined indicating a required number of pixels stored in a link buffer prior to starting to read data out of the link buffer for a next line display. A read signal is issued when the link buffer read period ends and the threshold is reached.

摘要翻译： 一种用于从链接缓冲器读取数据以输出到显示装置的方法和系统。 确定链接缓冲器读取周期，其在显示帧时间上平衡源视频帧时间上的写入吞吐量和读取吞吐量。 确定在开始从链接缓冲器中读出数据用于下一行显示之前，指示存储在链接缓冲器中的所需像素数量的阈值。 当链接缓冲器读取周期结束并且达到阈值时，发出读取信号。

公开(公告)号：US20110087660A1

公开(公告)日：2011-04-14

申请号：US12972259

申请日：2010-12-17

申请人： Qing Yu ,  Shuming Shi ,  Zhiwei Li ,  Ji-Rong Wen ,  Wei-Ying Ma

发明人： Qing Yu ,  Shuming Shi ,  Zhiwei Li ,  Ji-Rong Wen ,  Wei-Ying Ma

IPC分类号： G06F17/30

CPC分类号： G06F17/30864 ,  G06F17/30265

摘要： A method and system for determining relevance of a document having text and images to a text string is provided. A scoring system identifies image text associated with an image of the document. The scoring system calculates an image score indicating relevance of the image text to the text string. The image score may be used in many applications, such as searching, summary generation, and document classification, image search, and image classification.

摘要翻译： 提供了一种用于确定具有文本和图像的文档与文本串的相关性的方法和系统。 评分系统识别与文档的图像相关联的图像文本。 评分系统计算指示图像文本与文本字符串的相关性的图像分数。 图像分数可以用于许多应用中，例如搜索，汇总生成和文档分类，图像搜索和图像分类。

公开(公告)号：US20080215561A1

公开(公告)日：2008-09-04

申请号：US11681161

申请日：2007-03-01

申请人： Qing Yu ,  Shuming Shi ,  Zhiwei Li ,  Ji-Rong Wen ,  Wei-Ying Ma

发明人： Qing Yu ,  Shuming Shi ,  Zhiwei Li ,  Ji-Rong Wen ,  Wei-Ying Ma

IPC分类号： G06F17/30

CPC分类号： G06F17/30864 ,  G06F17/30265

摘要： A method and system for determining relevance of a document having text and images to a text string is provided. A scoring system identifies image text associated with an image of the document. The scoring system calculates an image score indicating relevance of the image text to the text string. The image score may be used in many applications, such as searching, summary generation, and document classification, image search, and image classification.

摘要翻译： 提供了一种用于确定具有文本和图像的文档与文本串的相关性的方法和系统。 评分系统识别与文档的图像相关联的图像文本。 评分系统计算指示图像文本与文本字符串的相关性的图像分数。 图像分数可以用于许多应用中，例如搜索，汇总生成和文档分类，图像搜索和图像分类。

公开(公告)号：US20080048766A1

公开(公告)日：2008-02-28

申请号：US11775196

申请日：2007-07-09

申请人： Zhao Wang ,  Qing Yu ,  David Xiao Dong Yang

发明人： Zhao Wang ,  Qing Yu ,  David Xiao Dong Yang

IPC分类号： G05F1/10

CPC分类号： G05F3/08

摘要： Techniques pertaining to a circuit architecture capable of controlling a current source to a predefined precision are disclosed. According to one aspect of the present invention, an automatic trimming circuit is proposed to automatically trim a current generated from a current generator or circuit in accordance with a reference current. The automatic trimming circuit includes a comparator, an ADC and a register. The comparator that may be implemented as a subtractor finds a difference between a generated current and a reference current. The difference is then digitized to an n-bit precision. A digital representation of the difference is then kept in a register and used subsequently correct or modify the generated current to produce a precisely controlled current.

摘要翻译： 公开了能够将电流源控制到预定义精度的电路架构的技术。 根据本发明的一个方面，提出了一种自动微调电路，用于根据参考电流自动调整从电流发生器或电路产生的电流。 自动微调电路包括比较器，ADC和寄存器。 可以实现为减法器的比较器发现生成的电流和参考电流之间的差异。 然后将差值数字化为n位精度。 然后将差值的数字表示保存在寄存器中，并随后使用校正或修改生成的电流以产生精确控制的电流。

公开(公告)号：US20070255065A1

公开(公告)日：2007-11-01

申请号：US11787929

申请日：2007-04-18

申请人： Qing Yu ,  Michel Bernatchez ,  Rocco Galante

发明人： Qing Yu ,  Michel Bernatchez ,  Rocco Galante

IPC分类号： C07D319/14

CPC分类号： C07D319/20 ,  C07D303/22 ,  C07D405/06

摘要： The present invention relates to methods for synthesizing compounds of formula I or pharmaceutically acceptable salts thereof: wherein each of R1, R2, R3, R4, x, m, n, and Ar are as defined, and described in classes and subclasses herein, which are agonists or partial agonists of the 2C subtype of brain serotonin receptors.

摘要翻译： 本发明涉及合成式I化合物或其药学上可接受的盐的方法：其中R 1，R 2，R 3， R 4，X，m，n和Ar如上所定义，并在本文的类别和亚类中描述，它们是脑5-羟色胺受体的2C亚型的激动剂或部分激动剂。

公开(公告)号：US07109334B2

公开(公告)日：2006-09-19

申请号：US10170418

申请日：2002-06-14

申请人： Qing Yu

发明人： Qing Yu

IPC分类号： C07D409/04 ,  C07D411/04

CPC分类号： C07D409/04 ,  C07D327/04 ,  C07D411/04

摘要： A process for producing predominantly cis nucleosides or nucleoside analogues and derivatives of formula (A): wherein R1 is a pyrimidine base or a pharmaceutically acceptable derivative thereof and Q is oxygen, carbon or sulphur, comprising a coupling step of the pyrimidine base with a molecule of formula (B) described herein in a suitable coupling solvent, in the presence of catalytic amounts of an element or combination of elements of groups IB or IIB of the periodic table, a tertiary amine and a Lewis acid to obtained an intermediate of formula (D) which is deprotected in the subsequent step to generate the product of formula (A).