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1. 发明授权

US07054461B2 Authenticating printed objects using digital watermarks associated with multidimensional quality metrics 有权
公开(公告)号：US07054461B2
公开(公告)日：2006-05-30
申请号：US10077354
申请日：2002-02-15
申请人： Claude Zeller , Donald G. Mackay , William Kilmartin , Robert A. Cordery , William A. Brosseau , Hugh L. Brunk , Stephen K. Decker , Jun Tian
发明人： Claude Zeller , Donald G. Mackay , William Kilmartin , Robert A. Cordery , William A. Brosseau , Hugh L. Brunk , Stephen K. Decker , Jun Tian
IPC分类号： G06K9/00
CPC分类号： G06T1/0078 , G06T2201/0202
摘要： The disclosure describes an authentication system and related methods for authenticating printed objects. The system uses an information-based metric along with one or more print quality metrics to provide accurate detection or classification of a counterfeit printed object. The print quality metric evaluates attributes of a subject image associated with the original printer, ink or paper to detect degradation of those operations due to copying operations like an image scanning and halftone printing subsequent to the original printing of the object. The information-based metric measures message symbol errors in an optically readable code, such as a digital watermark.

2. 发明授权

US06683966B1 Watermarking recursive hashes into frequency domain regions 有权
标题翻译：将水印递归到频域区域
公开(公告)号：US06683966B1
公开(公告)日：2004-01-27
申请号：US09689293
申请日：2000-10-11
申请人： Jun Tian , Stephen K. Decker , Hugh L. Brunk
发明人： Jun Tian , Stephen K. Decker , Hugh L. Brunk
IPC分类号： G06K900
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 transforms a media signal from its perceptual domain to frequency domain regions and embeds a hash of data from one frequency domain region into a watermark in another frequency domain region. Alternatively, it encodes instances of the same message into the frequency domain regions. To detect alteration of the media signal, a watermark decoder transforms a suspect signal into the frequency domain regions, extracts the watermark message from a first frequency domain region and compares it with a reference derived from another frequency domain region. The reference signal is either a hash computed from the other frequency domain region of the watermarked signal, or another instance of the same message embedded into the other frequency domain region. The decoder can be used to detect alteration of the signal, such as alteration that occurs with reproduction (printing, scanning, copying, D/A-A/D conversion, etc.), compression, cropping or swapping of media signal content, etc.
摘要翻译：水印嵌入器将媒体信号从感知域转换到频域区域，并将来自一个频域区域的数据的散列嵌入另一个频域区域中的水印。或者，它将相同消息的实例编码到频域区域中。为了检测媒体信号的变化，水印解码器将可疑信号转换成频域区域，从第一频域区域提取水印消息，并将其与从另一个频域区域导出的参考进行比较。参考信号是从水印信号的另一频域区域计算的散列或嵌入到另一频域区域中的相同消息的另一实例。解码器可用于检测信号的变化，例如再现（打印，扫描，复制，D / A-A / D转换等），媒体信号内容的压缩，裁剪或交换等发生的变化。

3. 发明授权

US08130811B2 Assessing quality of service using digital watermark information 有权
标题翻译：使用数字水印信息评估服务质量
公开(公告)号：US08130811B2
公开(公告)日：2012-03-06
申请号：US12692470
申请日：2010-01-22
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. Several other features and arrangements are also detailed.
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。还详细介绍了其他一些功能和安排。

4. 发明授权

US07656930B2 Assessing quality of service using digital watermark information 有权
标题翻译：使用数字水印信息评估服务质量
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。

5. 发明申请

US20110022937A1 Assessing Quality of Service Using Digital Watermark Information 有权
标题翻译：使用数字水印信息评估服务质量
公开(公告)号：US20110022937A1
公开(公告)日：2011-01-27
申请号：US12692470
申请日：2010-01-22
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： G06F11/07 , H04B1/69 , H04L9/06
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. Several other features and arrangements are also detailed.
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。还详细介绍了其他一些功能和安排。

6. 发明申请

US20080137749A1 Assessing Quality of Service Using Digital Watermark Information 有权
标题翻译：使用数字水印信息评估服务质量
公开(公告)号：US20080137749A1
公开(公告)日：2008-06-12
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： H04N7/00
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。

7. 发明授权

US07277468B2 Measuring quality of service of broadcast multimedia signals using digital watermark analyses 有权
标题翻译：使用数字水印分析测量广播多媒体信号的服务质量
公开(公告)号：US07277468B2
公开(公告)日：2007-10-02
申请号：US09951143
申请日：2001-09-10
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
CPC分类号： G06T1/0042 , G06T1/0071 , G06T2201/0051 , H04L29/06 , H04L67/06 , H04L69/329 , H04N1/32154 , H04N1/3216 , H04N17/004 , H04N21/4425 , H04N21/8358
摘要： The disclosure details a method of measuring the quality of service of broadcast media signals by analyzing digital watermarks embedded in the received broadcast signal. This method enables the quality of the broadcast video or audio signal to be measured without having the original version of the signal before broadcast transmission. Instead, the method analyzes the strength or quality of the embedded digital watermark to determine the quality of the received broadcast signal. The degradation of a watermark signal is used to measure quality of service of broadcast signals, such as audio and video.
摘要翻译：本公开细节通过分析嵌入在所接收的广播信号中的数字水印来测量广播媒体信号的服务质量的方法。该方法能够在广播传输之前测量广播视频或音频信号的质量而不具有信号的原始版本。相反，该方法分析嵌入式数字水印的强度或质量来确定接收的广播信号的质量。水印信号的劣化用于测量诸如音频和视频的广播信号的服务质量。

8. 发明授权

US07561714B2 Reversible watermarking 有权
标题翻译：可逆水印
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。

9. 发明授权

US06714683B1 Wavelet based feature modulation watermarks and related applications 有权
标题翻译：基于小波的特征调制水印及相关应用
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。

10. 发明授权

US08483292B2 Communication apparatus, base station and coordinated multipoint communication method 失效
标题翻译：通信装置，基站和协调多点通信方式
公开(公告)号：US08483292B2
公开(公告)日：2013-07-09
申请号：US13284593
申请日：2011-10-28
申请人： Jian Wang , Jie Zhang , Jun Tian , Hua Zhou , Jianming Wu
发明人： Jian Wang , Jie Zhang , Jun Tian , Hua Zhou , Jianming Wu
IPC分类号： H04L27/00
CPC分类号： H04B7/024 , H04J11/0053 , H04L5/0007 , H04L5/0035 , H04L25/03904 , H04W72/085
摘要： The communication apparatus includes: a channel estimating unit for acquiring a channel estimation value of a channel between the communication apparatus and a cell base station of a cell in which the communication apparatus is located; a transmitter transmitting the channel estimation value or information based on the channel estimation value to the cell base station; a receiver receiving coordinated multipoint (CoMP) message from the cell base station, the CoMP message indicates the CoMP transmission mode, the codebook or precoding matrix used by the cell base station, and the codebook or precoding matrix used by a coordinated base station that coordinates with the cell base station; a channel matrix forming unit for acquiring a channel matrix according to the CoMP message; and a decoder decoding received signals according to the channel matrix and the CoMP message.
摘要翻译：通信装置包括：信道估计单元，用于获取通信装置与通信装置所在的小区的小区基站之间的信道的信道估计值; 发射机，根据所述信道估计值向所述小区基站发送所述信道估计值或信息; 接收机从小区基站接收协调多点（CoMP）消息，CoMP消息指示小区基站使用的CoMP传输模式，码本或预编码矩阵，以及由协调基站使用的码本或预编码矩阵，与小区基站; 信道矩阵形成单元，用于根据所述CoMP消息获取信道矩阵; 解码器根据信道矩阵和CoMP消息解码接收信号。

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