公开(公告)号：US07656930B2

公开(公告)日：2010-02-02

申请号：US11866145

申请日：2007-10-02

申请人： Jun Tian ,  Kenneth L. Levy ,  Hugh L. Brunk

发明人： Jun Tian ,  Kenneth L. Levy ,  Hugh L. Brunk

IPC分类号： H04B1/00 ,  H04N7/167

CPC分类号： H04N17/004 ,  G06T1/0021 ,  H04N21/4425 ,  H04N21/8358

摘要： The disclosure details methods of measuring the quality of service of received media signals by analyzing digital watermarks embedded in such signals. The quality of a received video or audio signal can thereby be assessed without having the original version of the signal before transmission. Instead, the strength or quality of the embedded digital watermark is analyzed to determine the quality of the received signal. The degradation of a watermark signal is used to assess quality of service of signals, such as audio and video.

摘要翻译： 本公开详细描述了通过分析嵌入在这些信号中的数字水印来测量接收的媒体信号的服务质量的方法。 因此可以在传送前没有信号的原始版本来评估所接收的视频或音频信号的质量。 相反，分析嵌入式数字水印的强度或质量来确定接收信号的质量。 水印信号的劣化用于评估诸如音频和视频的信号的服务质量。

公开(公告)号：US07561714B2

公开(公告)日：2009-07-14

申请号：US10319404

申请日：2002-12-12

申请人： Jun Tian ,  Stephen K. Decker

发明人： Jun Tian ,  Stephen K. Decker

IPC分类号： G06K9/00

CPC分类号： G10L19/018 ,  G06T1/0028 ,  G06T2201/0052 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  H04N1/32149 ,  H04N1/32154 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

摘要： A reversible watermarking method embeds auxiliary data into a data set, such as an image, audio, video or other data, in a manner that enables full recovery of the original, un-modified data set. This method may be used to determine whether the data set has been tampered. To improve embedding capacity without the need for compression of the auxiliary data, the method uses an expansion technique. One particular approach exploits the correlation or redundancy within the data set to convert the data to a set of small, expandable values, such as difference values. These small values are then expanded by inserting auxiliary data as one or more additional bits, increasing the number of bits without causing an underflow or overflow. This approach also uses a property of the data set that is invariant to the embedding operation to identify embedding locations, obviating the need for separate data to identify where data is embedded in a data set.

摘要翻译： 可逆水印方法将辅助数据嵌入诸如图像，音频，视频或其他数据的数据集中，使得能够完全恢复原始的未修改的数据集。 该方法可用于确定数据集是否已被篡改。 为了提高嵌入容量，无需压缩辅助数据，该方法使用扩展技术。 一种特定的方法利用数据集内的相关性或冗余性将数据转换成一组小的可扩展值，例如差值。 然后通过将辅助数据插入一个或多个附加位来扩展这些小值，增加位数而不会引起下溢或溢出。 该方法还使用与嵌入操作不变的数据集的属性来识别嵌入位置，从而避免需要单独的数据来识别数据嵌入在数据集中的位置。

公开(公告)号：US20090119043A1

公开(公告)日：2009-05-07

申请号：US12232179

申请日：2008-09-11

申请人： Zhenning Tao ,  Jun Tian ,  Huijian Zhang ,  Hisao Nakashima

发明人： Zhenning Tao ,  Jun Tian ,  Huijian Zhang ,  Hisao Nakashima

IPC分类号： G01R13/00

CPC分类号： H04L27/3863 ,  H04L27/3872

摘要： The present invention discloses a phase imbalance monitoring apparatus, an amplitude imbalance monitoring apparatus, as well as an apparatus incorporating the same. The phase imbalance monitoring apparatus is for use in an apparatus in which imbalance between an I branch signal and a Q branch signal in quadrature to each other is required to be monitored, and is characterized in comprising a preprocessing unit, for performing preprocessing on the I branch signal and the Q branch signal to extract essential information relevant to correlation of the signals; and a correlation unit, for performing correlation processing on the extracted essential information to learn of the phase imbalance between the I branch signal and the Q branch signal.

摘要翻译： 本发明公开了一种相位不平衡监视装置，振幅不平衡监视装置，以及包括该不平衡监视装置的装置。 相位不平衡监视装置用于需要监视I分支信号和彼此正交的Q分支信号之间的不平衡的装置，其特征在于包括预处理单元，用于对I进行预处理 分支信号和Q分支信号，以提取与信号相关性相关的基本信息; 以及相关单元，用于对所提取的基本信息执行相关处理，以了解I分支信号和Q分支信号之间的相位不平衡。

公开(公告)号：US07346776B2

公开(公告)日：2008-03-18

申请号：US09731456

申请日：2000-12-06

申请人： Kenneth L. Levy ,  Jun Tian

发明人： Kenneth L. Levy ,  Jun Tian

IPC分类号： H04L9/00 ,  G06K9/00

CPC分类号： G06T1/0085 ,  G06T1/0028 ,  G06T1/0042 ,  G06T1/0071 ,  G06T2201/0052 ,  H04L29/06 ,  H04L67/06 ,  H04L69/329 ,  H04N1/32144 ,  H04N1/32154 ,  H04N1/3216 ,  H04N17/004 ,  H04N21/4425 ,  H04N21/8358

摘要： A method of authenticating a media signal and related software, systems and applications. The method transforms at least a portion of the media signal into a set of frequency coefficients in a frequency domain. For example, it applies a Fast Fourier Transform (FFT) or other frequency transform to blocks of a media signal, such as an image, audio or video signal. It adjusts a relationship between selected frequency coefficients to a reference value. This adjustment is selected so that an alteration to be detected, such as a re-sampling operation or digital to analog—analog to digital conversion, alters the relationship. To detect the alteration, a detector computes the relationship in a potentially corrupted version of the signal. It then compares the result with a threshold value to detect whether the alteration has occurred.

摘要翻译： 一种认证媒体信号和相关软件，系统和应用的方法。 该方法将媒体信号的至少一部分转换成频域中的一组频率系数。 例如，它将快速傅里叶变换（FFT）或其它频率变换应用于诸如图像，音频或视频信号的媒体信号的块。 它将所选频率系数之间的关系调整为参考值。 选择该调整使得要被检测的改变，例如重新采样操作或数字到模拟 - 模数转换，改变关系。 为了检测变化，检测器计算信号潜在损坏版本中的关系。 然后将结果与阈值进行比较，以检测是否发生了更改。

公开(公告)号：US20070053550A1

公开(公告)日：2007-03-08

申请号：US11365976

申请日：2006-02-28

申请人： Adnan Alattar ,  John Stach ,  Jun Tian

发明人： Adnan Alattar ,  John Stach ,  Jun Tian

IPC分类号： G06K9/00

CPC分类号： G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32149 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

摘要： Reversible watermarking methods enable auxiliary data to be embedded in data sets, such as images, audio, video and software. The reversible nature of the method enables the original data set to be perfectly restored. Control systems with feedback loops are used to optimize embedding based on distortion or auxiliary data capacity constraints. The watermarking may be applied recursively to embed several layers, where subsequent layers are embedded into a previously watermarked data set. To recover the original data, each layer is extracted and the data restored in reverse order of the embedding. Sets of elements that are expanded to carry auxiliary data in each layer overlap or are interleaved to maximize embedding capacity or quality of the host data.

摘要翻译： 可逆水印方法使辅助数据可以嵌入数据集，如图像，音频，视频和软件。 该方法的可逆性使得能够完美地恢复原始数据集。 具有反馈回路的控制系统用于基于失真或辅助数据容量约束优化嵌入。 可以递归地应用水印以嵌入几个层，其中后续层被嵌入到先前加水印的数据集中。 为了恢复原始数据，提取每一层，并以与嵌入相反的顺序恢复数据。 扩展为在每个层中传送辅助数据的元素集合重叠或交织以最大化主机数据的嵌入容量或质量。

公开(公告)号：US20060247395A1

公开(公告)日：2006-11-02

申请号：US11119243

申请日：2005-04-29

申请人： William Gauthier ,  Jun Tian ,  David Rauscher ,  Constance Patrick ,  Shady Henry ,  Nathan Williams

发明人： William Gauthier ,  Jun Tian ,  David Rauscher ,  Constance Patrick ,  Shady Henry ,  Nathan Williams

IPC分类号： C08F2/00

CPC分类号： C08F210/16 ,  C08F4/65912 ,  C08F10/00 ,  C08F210/06 ,  C08F2500/03 ,  C08F2500/20 ,  C08F4/65927

摘要： A process for preparing low melting copolymers comprising contacting a mixture of olefin monomers with a CpFlu-type metallocene catalyst under reaction conditions sufficient to form a copolymer. The copolymers thus prepared desirably display melt temperatures from about 100° C. to about 140° C. and may be produced with reduced amounts of ethylene. The copolymers may also exhibit reduced levels of undesirable xylene solubles, relatively narrow molecular weight distribution, and other improved optical and physical properties.

摘要翻译： 一种制备低熔点共聚物的方法，包括使烯烃单体的混合物与CpFlu型金属茂催化剂在足以形成共聚物的反应条件下接触。 如此制备的共聚物理想地显示约100℃至约140℃的熔融温度，并且可以用减少量的乙烯制备。 共聚物也可以表现出不希望的二甲苯可溶物的水平降低，分子量分布相对窄，以及其他改进的光学和物理性能。

公开(公告)号：US07006662B2

公开(公告)日：2006-02-28

申请号：US10435517

申请日：2003-05-08

申请人： Adnan M. Alattar ,  John Stach ,  Jun Tian

发明人： Adnan M. Alattar ,  John Stach ,  Jun Tian

IPC分类号： G06K9/00

CPC分类号： G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  G06T2201/0202 ,  G06T2201/0203 ,  G10L19/018 ,  H04N1/32149 ,  H04N1/32187 ,  H04N1/32229 ,  H04N1/32283 ,  H04N1/32347 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/327

摘要： Reversible watermarking methods enable auxiliary data to be embedded in data sets, such as images, audio, video and software. The reversible nature of the method enables the original data set to be perfectly restored. Control systems with feedback loops are used to optimize embedding based on distortion or auxiliary data capacity constraints. The watermarking may be applied recursively to embed several layers, where subsequent layers are embedded into a previously watermarked data set. To recover the original data, each layer is extracted and the data restored in reverse order of the embedding. Sets of elements that are expanded to carry auxiliary data in each layer overlap or are interleaved to maximize embedding capacity or quality of the host data.

公开(公告)号：US06855783B2

公开(公告)日：2005-02-15

申请号：US10412372

申请日：2003-04-11

申请人： William J. Gauthier ,  Margaret Kerr ,  Jun Tian ,  David J. Rauscher ,  Constance Hayworth Patrick ,  Shady Henry

发明人： William J. Gauthier ,  Margaret Kerr ,  Jun Tian ,  David J. Rauscher ,  Constance Hayworth Patrick ,  Shady Henry

IPC分类号： B01J31/00 ,  B01J37/00 ,  C07F9/00 ,  C07F11/00 ,  C07F17/00 ,  C08F4/02 ,  C08F4/42 ,  C08F4/44 ,  C08F4/60 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65927 ,  C08F110/06 ,  Y10S526/943 ,  C08F4/65916 ,  C08F2500/18 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/17 ,  C08F2500/15

摘要： Supported metallocene catalysts and processes for the use of such catalysts in isotactic polymerization of a C3+ ethylenically unsaturated monomer. The supported catalysts comprise a particulate silica support, an alkyl alumoxane component, and a metallocene catalyst component. The support has an average particle size of 10-50 microns, a surface area of 200-800 m2/g and a pore volume of 0.9-2.1 milliliters per gram (ml/g). Alumoxane is incorporated onto the support to provide a weight ratio of alumoxane to silica of at least 0.8:1. The metallocene is present in an amount of at least 1 weight percent of the silica and the alumoxane and is of the formula B(CpRaRb)(Fl′)MQ2 in which Fl′ is an unsubstituted fluorenyl group or a fluorenyl group symmetrically substituted at the 3 and 6 positions, B is a structural bridge between Cp and Fl′, Ra is a bulky substituent in a distal position, Rb is a less bulky substituent proximal to the bridge and non-vicinal to the distal substituent, M is a Group IVB transition metal or vanadium, and Q is a halogen or a Cl-C4 alkyl group.

摘要翻译： 负载型金属茂催化剂和在C3 +烯属不饱和单体的全同立构聚合中使用这种催化剂的方法。 载体催化剂包括颗粒二氧化硅载体，烷基铝氧烷组分和茂金属催化剂组分。 载体的平均粒度为10-50微米，表面积为200-800平方米/克，孔体积为0.9-2.1毫升/克（毫升/克）。 将Alumoxane加入到载体上以提供至少0.8:1的铝氧烷与二氧化硅的重量比。 金属茂的存在量为二氧化硅和铝氧烷的至少1重量％，并且具有式B（CpRaRb）（F1'）MQ2，其中F1'是未取代的芴基或在该位置上对称取代的芴基 3和6位，B是Cp和Fl'之间的结构桥，Ra是远端位置的大体积取代基，Rb是靠近桥的较不庞大的取代基，而与远端取代基不相邻，M是IVB族 过渡金属或钒，Q是卤素或C 1 -C 4烷基。

公开(公告)号：US06714683B1

公开(公告)日：2004-03-30

申请号：US09645779

申请日：2000-08-24

申请人： Jun Tian ,  Stephen K. Decker

发明人： Jun Tian ,  Stephen K. Decker

IPC分类号： G06R900

CPC分类号： G06T1/0028 ,  G06T2201/0052 ,  H04N1/3216 ,  H04N1/3217 ,  H04N1/32187 ,  H04N1/32283 ,  H04N1/32352 ,  H04N2201/3233 ,  H04N2201/3236 ,  H04N2201/327

摘要： A watermark embedder decomposes a media signal from its perceptual domain to subbands and embeds a message signal in the edge information of neighboring coefficients of those subbands. A compatible watermark decoder decomposes the watermarked signal into subbands and demodulates the message signal from the edge information of neighboring coefficients. In addition to the message signal, the embedder may also encode an orientation signal to synchronize the decoder with the embedded signal in a distorted version of the watermarked signal. The watermark system may be used in a variety of applications, including robustly carrying metadata or links to metadata, and to detect alterations of the watermarked signal, such as alterations due to printing, scanning, compression, etc.

摘要翻译： 水印嵌入器将媒体信号从其感知域分解成子带，并将消息信号嵌入在这些子带的相邻系数的边缘信息中。 兼容水印解码器将水印信号分解为子带，并从相邻系数的边缘信息中解调消息信号。 除了消息信号之外，嵌入器还可以对取向信号进行编码，以使解码器与水印信号的失真版本中的嵌入信号同步。 水印系统可以用于各种应用中，包括鲁棒地携带元数据或链接到元数据，并检测水印信号的变化，例如由于打印，扫描，压缩等引起的变化。

公开(公告)号：US06299146B1

公开(公告)日：2001-10-09

申请号：US09471054

申请日：1999-12-22

申请人： Xiaomei Yu ,  Chongsi Xu ,  Jingzhong Zhu ,  Ou Li ,  Zuming Zheng ,  Kejian Yao ,  Jun Tian

发明人： Xiaomei Yu ,  Chongsi Xu ,  Jingzhong Zhu ,  Ou Li ,  Zuming Zheng ,  Kejian Yao ,  Jun Tian

IPC分类号： B01F304

CPC分类号： B01D3/20

摘要： The vapor-liquid contacting tower contains multiple trays having multiple openings and multiple rectangular downcomers with multiple bottom openings. At least a pair of directing slots and at least a pair of directing baffles are installed in the liquid receiving zone of the tray and under the bottom openings of a downcomer of the adjacent overlying tray.

摘要翻译： 气 - 液接触塔包含多个具有多个开口的托盘和具有多个底部开口的多个矩形降液管。 至少一对引导槽和至少一对引导挡板安装在托盘的液体接收区域中以及相邻的上托盘的降液管的底部开口下方。