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。

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：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：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。

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。

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。

公开(公告)号：US20080270801A1

公开(公告)日：2008-10-30

申请号：US12050820

申请日：2008-03-18

申请人： Kenneth L. Levy ,  Jun Tian

发明人： Kenneth L. Levy ,  Jun Tian

IPC分类号： H04L9/32

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 imperceptibly embedding a code signal in a media signal encodes auxiliary information in frequency components of the media signal. This method forms a code signal comprising a plurality of frequency components. The method embeds the code signal into the media signal by adjusting the frequency component relative to a neighboring component. The method changes selection of the plurality of frequency components corresponding to the codes signal for different instances of embedding the code signal in the media signal. The code signal may be used to encode a combination of fixed and variable message information in audio and image signals, including video. In one application, the attributes of the code signal are measured to determine broadcast signal quality. In another, the code signal robustly carries auxiliary information in distribution channels where distortion is common, such as compression, broadcast distortion, packet loss, digital to analog conversion, and ambient air transmission.

摘要翻译： 在媒体信号中不可知地嵌入码信号的方法在媒体信号的频率分量中对辅助信息进行编码。 该方法形成包括多个频率分量的码信号。 该方法通过调整相对于相邻分量的频率分量将码信号嵌入到媒体信号中。 该方法改变与代码信号相对应的多个频率分量的选择，用于在媒体信号中嵌入码信号的不同实例。 代码信号可以用于对包括视频的音频和图像信号中的固定和可变消息信息的组合进行编码。 在一个应用中，测量代码信号的属性以确定广播信号质量。 另一方面，代码信号在诸如压缩，广播失真，分组丢失，数字到模拟转换和环境空气传输之类的失真是常见的分布通道中鲁棒地携带辅助信息。

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。

公开(公告)号：US08437803B2

公开(公告)日：2013-05-07

申请号：US13235563

申请日：2011-09-19

申请人： Yuantao Zhang ,  Jun Tian ,  Jianming Wu ,  Jian Wang ,  Jie Zhang

发明人： Yuantao Zhang ,  Jun Tian ,  Jianming Wu ,  Jian Wang ,  Jie Zhang

IPC分类号： H04W88/02

CPC分类号： H04W48/12 ,  H04L5/0023 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0064 ,  H04L5/0092 ,  H04L25/0232 ,  H04W88/08

摘要： A base station and a mobile station, the base station includes common antennas configured to transmit signals to all mobile stations (UEs) served by the base station; a special antenna to transmit a signal to a UE which is served by the base station and supports the special antenna; a sub-frame selecting unit to select a sub-frame for transmitting a common pilot of the special antenna in the current frame; a resource block (RB) selecting unit to select a RB for transmitting the common pilot, in the sub-frame for transmitting the common pilot selected by the sub-frame selecting unit; a notifying unit to notify the sub-frame and RB for transmitting the common pilot antenna selected by the UE supporting the special antenna in a cell; and a transmitting unit to transmit a signal having the common pilot in the RB selected by the RB selecting unit.

摘要翻译： 一种基站和移动台，所述基站包括被配置为向由所述基站服务的所有移动台（UE）发送信号的公共天线; 一个专用天线，用于向由基站服务并支持特殊天线的UE发送信号; 子帧选择单元，用于选择用于在当前帧中发送专用天线的公共导频的子帧; 在用于发送由子帧选择单元选择的公共导频的子帧中的资源块（RB）选择单元，用于选择用于发送公共导频的RB; 通知单元，用于通知子帧和RB，用于将由支持特殊天线的UE选择的公共导频天线发送到小区中; 以及发送单元，用于在由RB选择单元选择的RB中发送具有公共导频的信号。

公开(公告)号：US08428174B2

公开(公告)日：2013-04-23

申请号：US13217914

申请日：2011-08-25

申请人： Jian Wang ,  Yuantao Zhang ,  Jun Tian ,  Hua Zhou

发明人： Jian Wang ,  Yuantao Zhang ,  Jun Tian ,  Hua Zhou

IPC分类号： H04B7/02

CPC分类号： H04B7/024 ,  H04B7/043 ,  H04L1/0003 ,  H04L1/0009 ,  H04L25/03343 ,  H04L2001/0092

摘要： A method for multiple-input multiple-output (MIMO) collaborative communication in a wireless communication system includes at least one user equipment and M base stations performing collaborative communication with the user equipment. Here, M is an integer that is greater than or equal to 2. The method includes the following processes for each user equipment: a first level of MIMO pre-coding process is performed for each base station to acquire each first level of pre-coding matrix corresponding to each base station; a second level to the X-th level of MIMO pre-coding process is performed sequentially to acquire the second level to the X-th level of pre-coding matrices of the corresponding base stations. Here, X is an integer that is greater than or equal to 2. A pre-coding device, a user equipment and a wireless communication system related to the method are also provided.

摘要翻译： 一种用于无线通信系统中的多输入多输出（MIMO）协作通信的方法包括至少一个用户设备和执行与该用户设备的协作通信的M个基站。 这里，M是大于或等于2的整数。该方法包括对于每个用户设备的以下处理：对每个基站执行第一级MIMO预编码处理以获取每个第一级预编码 矩阵对应于每个基站; 顺序地执行与MIMO预编码处理的第X级的第二级，以获得与相应基站的预编码矩阵的第X级的第二级。 这里，X是大于或等于2的整数。还提供了与该方法相关的预编码设备，用户设备和无线通信系统。