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1. 发明授权

US08234549B2 Simultaneous PMD compensation and chromatic dispersion compensation using LDPC coded OFDM 有权
标题翻译：使用LDPC编码OFDM同时进行PMD补偿和色散补偿
公开(公告)号：US08234549B2
公开(公告)日：2012-07-31
申请号：US12043348
申请日：2008-03-06
申请人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
发明人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
IPC分类号： H03M13/03 , H03M13/00
CPC分类号： H03M13/2957 , H03M13/1102 , H03M13/1111 , H03M13/6325 , H04B10/2513 , H04B10/2569 , H04B10/697
摘要： A method includes estimating quadrature amplitude modulated QAM symbols in an LDPC encoded OFDM signal for transmission, performing channel estimation by training sequence to determine channel coefficients in reception of the LDPC encoded OFDM signal; and obtaining channel information detection and decoding of the LDPC encoded signal.
摘要翻译：一种方法包括估计用于传输的LDPC编码OFDM信号中的正交幅度调制QAM符号，通过训练序列执行信道估计，以确定在接收LDPC编码的OFDM信号中的信道系数; 并获得LDPC编码信号的信道信息检测和解码。

2. 发明授权

US08713636B2 Computer network running a distributed application 有权
标题翻译：运行分布式应用的计算机网络
公开(公告)号：US08713636B2
公开(公告)日：2014-04-29
申请号：US12594059
申请日：2008-03-28
申请人： Theo Dimitrakos , Ivan Djordjevic , Srijith K Nair
发明人： Theo Dimitrakos , Ivan Djordjevic , Srijith K Nair
IPC分类号： H04L29/06 , G06F21/00
CPC分类号： H04L63/0807 , H04L63/102 , H04L67/10
摘要： A computer network is disclosed in which a group of computers co-operate to perform a distributed application. In order to ensure that only members of that group of computers are able to carry out certain operations, messages sent in the performance of the distributed application are checked by the recipient for the presence of a group membership token. The inclusion of a group membership token is controlled by one or more group membership handlers which intercept messages from local components and only include a group membership token with the message if they list the sending local component as being entitled to include the group membership token in the message. Furthermore, by operating the group membership token on a separate machine, or preferably a separate virtual machine from the local component, security is further improved. In the most preferred embodiments, the group token handler and/or the local component are hosted on virtual machines which provide virtualised cryptographic functionality.
摘要翻译：公开了一种计算机网络，其中一组计算机协作以执行分布式应用。为了确保只有该组计算机的成员能够执行某些操作，则由分发的应用程序发送的消息由接收者检查是否存在组成员令牌。组成员身份令牌的包含由一个或多个组成员处理程序控制，该组会员处理程序拦截来自本地组件的消息，并且仅在将发送本地组件列为有权将组成员令牌包括在信息。此外，通过在单独的机器上操作组成员令牌，或者优选地从本地组件操作单独的虚拟机，进一步改进了安全性。在最优选的实施例中，组令牌处理程序和/或本地组件托管在提供虚拟化加密功能的虚拟机上。

3. 发明授权

US08140934B2 LDPC-coded multilevel modulation scheme 有权
标题翻译： LDPC编码多电平调制方案
公开(公告)号：US08140934B2
公开(公告)日：2012-03-20
申请号：US12242205
申请日：2008-09-30
申请人： Ivan Djordjevic , Ting Wang , Lei Xu
发明人： Ivan Djordjevic , Ting Wang , Lei Xu
IPC分类号： H03M13/00
CPC分类号： H04B10/516 , H03M13/255 , H04B10/2569 , H04B10/541 , H04B10/61 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0065 , H04L1/0071 , H04L1/02
摘要： A PMD compensation scheme suitable for use in multilevel block-coded modulation schemes with coherent detection.
摘要翻译：适用于具有相干检测的多级块编码调制方案的PMD补偿方案。

4. 发明申请

US20100088571A1 HIGH SPEED LDPC DECODING 有权
标题翻译：高速LDPC解码
公开(公告)号：US20100088571A1
公开(公告)日：2010-04-08
申请号：US12571501
申请日：2009-10-01
申请人： Ivan DJORDJEVIC , Lei XU , Ting WANG
发明人： Ivan DJORDJEVIC , Lei XU , Ting WANG
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H03M13/116 , H03M13/1111 , H03M13/6597
摘要： An optical probability-domain LDPC decoder suitable for implementation at 100 Gb/s and above provides large coding gains when based on large-girth LDPC codes. A basic building block, the probabilities multiplier circuit, used to implement both check node and probability node update circuits can be implemented using Mach-Zehnder delay interferometer.
摘要翻译：适用于100Gb / s以上的光概率域LDPC解码器在基于大围尺码LDPC码时提供较大的编码增益。用于实现校验节点和概率节点更新电路的基本构建块，概率乘法器电路可以使用Mach-Zehnder延迟干涉仪来实现。

5. 发明申请

US20090235143A1 LDPC-CODED MULTILEVEL MODULATION SCHEME 有权
标题翻译： LDPC编码多路调制方案
公开(公告)号：US20090235143A1
公开(公告)日：2009-09-17
申请号：US12242205
申请日：2008-09-30
申请人： Ivan DJORDJEVIC , Ting WANG , Lei XU
发明人： Ivan DJORDJEVIC , Ting WANG , Lei XU
IPC分类号： H03M13/05 , G06F11/10
CPC分类号： H04B10/516 , H03M13/255 , H04B10/2569 , H04B10/541 , H04B10/61 , H04L1/0041 , H04L1/0057 , H04L1/0058 , H04L1/0065 , H04L1/0071 , H04L1/02
摘要： A PMD compensation scheme suitable for use in multilevel block-coded modulation schemes with coherent detection.
摘要翻译：适用于具有相干检测的多级块编码调制方案的PMD补偿方案。

6. 发明申请

US20090228766A1 Simulatenous PMD Compensation and Chromatic Dispersion Compensation Using LDPC Coded OFDM 有权
标题翻译：使用LDPC编码OFDM的Simulatenous PMD补偿和色散补偿
公开(公告)号：US20090228766A1
公开(公告)日：2009-09-10
申请号：US12043348
申请日：2008-03-06
申请人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
发明人： Ivan Djordjevic , Ting Wang , Lei Xu , Milorad Cvijetic
IPC分类号： H03M13/05 , G06F11/07
CPC分类号： H03M13/2957 , H03M13/1102 , H03M13/1111 , H03M13/6325 , H04B10/2513 , H04B10/2569 , H04B10/697
摘要： A method includes estimating quadrature amplitude modulated QAM symbols in an LDPC encoded OFDM signal for transmission, performing channel estimation by training sequence to determine channel coefficients in reception of the LDPC encoded OFDM signal; and obtaining channel information detection and decoding of the LDPC encoded signal.
摘要翻译：一种方法包括估计用于传输的LDPC编码OFDM信号中的正交幅度调制QAM符号，通过训练序列执行信道估计，以确定在接收LDPC编码的OFDM信号中的信道系数; 并获得LDPC编码信号的信道信息检测和解码。

7. 发明授权

US08595480B2 Distributed computing network using multiple local virtual machines 有权
标题翻译：分布式计算网络使用多个本地虚拟机
公开(公告)号：US08595480B2
公开(公告)日：2013-11-26
申请号：US12594045
申请日：2008-03-28
申请人： Theo Dimitrakos , Ivan Djordjevic , Srijith K Nair
发明人： Theo Dimitrakos , Ivan Djordjevic , Srijith K Nair
IPC分类号： H04L29/06 , G06F21/00
CPC分类号： G06F9/547 , G06F21/53 , H04L67/10
摘要： A distributed computer system is disclosed in which computers co-operate with one another by sending messages over a network such as the Internet in order to perform a distributed application. In order to improve the security of such system, each web service involved in the distributed application runs in a separate virtual machine. Furthermore, the virtual machines on a web server dedicated to respective web service instances utilise the same policy enforcement point—running in another virtual machine on the web-server—in order to handle messages for or from the web server. To increase security still further, each virtual machine provides virtual cryptoprocessor functionality which is used in the processing of messages sent in the performance of the distributed application.
摘要翻译：公开了一种分布式计算机系统，其中计算机通过诸如因特网的网络发送消息来彼此协作，以执行分布式应用。为了提高这种系统的安全性，分布式应用程序中涉及的每个Web服务都运行在单独的虚拟机中。此外，专用于各个Web服务实例的Web服务器上的虚拟机利用在web服务器上的另一个虚拟机中运行的相同的策略执行点，以便处理或从Web服务器发送消息。为了进一步提高安全性，每个虚拟机提供虚拟密码处理器功能，用于处理在分布式应用程序的性能中发送的消息。

8. 发明授权

US08181091B2 High speed LDPC decoding 有权
标题翻译：高速LDPC解码
公开(公告)号：US08181091B2
公开(公告)日：2012-05-15
申请号：US12571501
申请日：2009-10-01
申请人： Ivan Djordjevic , Lei Xu , Ting Wang
发明人： Ivan Djordjevic , Lei Xu , Ting Wang
IPC分类号： H03M13/00
CPC分类号： H03M13/116 , H03M13/1111 , H03M13/6597
摘要： An optical probability-domain LDPC decoder suitable for implementation at 100 Gb/s and above provides large coding gains when based on large-girth LDPC codes. A basic building block, the probabilities multiplier circuit, used to implement both check node and probability node update circuits can be implemented using Mach-Zehnder delay interferometer.
摘要翻译：适用于100Gb / s以上的光概率域LDPC解码器在基于大围尺码LDPC码时提供较大的编码增益。用于实现校验节点和概率节点更新电路的基本构建块，概率乘法器电路可以使用Mach-Zehnder延迟干涉仪来实现。

9. 发明申请

US20100138674A1 COMPUTER NETWORK 有权
标题翻译：计算机网络
公开(公告)号：US20100138674A1
公开(公告)日：2010-06-03
申请号：US12594045
申请日：2008-03-28
申请人： Theo Dimitrakos , Ivan Djordjevic , Srijith K. Nair
发明人： Theo Dimitrakos , Ivan Djordjevic , Srijith K. Nair
IPC分类号： G06F15/16 , G06F9/455 , G06F21/06
CPC分类号： G06F9/547 , G06F21/53 , H04L67/10
摘要： A distributed computer system is disclosed in which computers co-operate with one another by sending messages over a network such as the Internet in order to perform a distributed application. In order to improve the security of such system, each web service involved in the distributed application runs in a separate virtual machine. Furthermore, the virtual machines on a web server dedicated to respective web service instances utilise the same policy enforcement point—running in another virtual machine on the web-server—in order to handle messages for or from the web server. To increase security still further, each virtual machine provides virtual cryptoprocessor functionality which is used in the processing of messages sent in the performance of the distributed application.
摘要翻译：公开了一种分布式计算机系统，其中计算机通过诸如因特网的网络发送消息来彼此协作，以执行分布式应用。为了提高这种系统的安全性，分布式应用程序中涉及的每个Web服务都运行在单独的虚拟机中。此外，专用于各个Web服务实例的Web服务器上的虚拟机利用在web服务器上的另一个虚拟机中运行的相同的策略执行点，以便处理或从Web服务器发送消息。为了进一步提高安全性，每个虚拟机提供虚拟密码处理器功能，用于处理在分布式应用程序的性能中发送的消息。

10. 发明申请

US20100049968A1 COMPUTER NETWORK 有权
标题翻译：计算机网络
公开(公告)号：US20100049968A1
公开(公告)日：2010-02-25
申请号：US12594059
申请日：2008-03-28
申请人： Theo Dimitrakos , Ivan Djordjevic , Srijith K. Nair
发明人： Theo Dimitrakos , Ivan Djordjevic , Srijith K. Nair
IPC分类号： H04L29/06
CPC分类号： H04L63/0807 , H04L63/102 , H04L67/10
摘要： A computer network is disclosed in which a group of computers co-operate to perform a distributed application. In order to ensure that only members of that group of computers are able to carry out certain operations, messages sent in the performance of the distributed application are checked by the recipient for the presence of a group membership token. The inclusion of a group membership token is controlled by one or more group membership handlers which intercept messages from local components and only include a group membership token with the message if they list the sending local component as being entitled to include the group membership token in the message. Furthermore, by operating the group membership token on a separate machine, or preferably a separate virtual machine from the local component, security is further improved. In the most preferred embodiments, the group token handler and/or the local component are hosted on virtual machines which provide virtualised cryptographic functionality.
摘要翻译：公开了一种计算机网络，其中一组计算机协作以执行分布式应用。为了确保只有该组计算机的成员能够执行某些操作，则由分发的应用程序发送的消息由接收者检查是否存在组成员令牌。组成员身份令牌的包含由一个或多个组成员处理程序控制，该组会员处理程序拦截来自本地组件的消息，并且仅在将发送本地组件列为有权将组成员令牌包括在信息。此外，通过在单独的机器上操作组成员令牌，或者优选地从本地组件操作单独的虚拟机，进一步改进了安全性。在最优选的实施例中，组令牌处理程序和/或本地组件托管在提供虚拟化加密功能的虚拟机上。

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