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31. 发明授权

US08107825B2 Apparatus and method for support of dimming in visible light communication 有权
标题翻译：用于支持可见光通信中的调光的装置和方法
公开(公告)号：US08107825B2
公开(公告)日：2012-01-31
申请号：US12577548
申请日：2009-10-12
申请人： Sridhar Rajagopal , Ying Li
发明人： Sridhar Rajagopal , Ying Li
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method and system for visible light communication (VLC) for use in a dimmable lighting environment is provided. The method includes transmitting data using light from at least one light source, a brightness of the light reduced below a maximum level. The method also includes compensating or accommodating for the reduced brightness of the light at a VLC circuitry to maintain communication. The method further includes transmitting data to at least one VLC receiver using the light from the at least one light source.
摘要翻译：提供了一种用于可调光照明环境中的可见光通信（VLC）的方法和系统。该方法包括使用来自至少一个光源的光发射数据，光的亮度降低到最大水平以下。该方法还包括补偿或适应在VLC电路处的光的降低的亮度以保持通信。该方法还包括使用来自至少一个光源的光将数据发送到至少一个VLC接收机。

32. 发明申请

US20110091220A1 APPARATUS AND METHOD FOR CHANNEL AGGREGATION AND GUARD CHANNEL INDICATION FOR VISIBLE LIGHT COMMUNICATION 有权
标题翻译：用于可见光通信的信道聚合和保护信道指示的装置和方法
公开(公告)号：US20110091220A1
公开(公告)日：2011-04-21
申请号：US12895225
申请日：2010-09-30
申请人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
发明人： Sridhar Rajagopal , Farooq Khan , Ying Li , Jaeseung Son
IPC分类号： H04B10/00
CPC分类号： H04B10/116 , H04B10/1149
摘要： A method, apparatus, and a non-transitory computer readable storage medium for supporting visible light communication (VLC) exchanges bitmaps for capabilities field exchange in a media access control (MAC) layer during link establishment and association with other VLC-enabled devices. An aggregation bitmap is generated to indicate whether a visible light communication (VLC) transmitter of a first device uses at least one aggregated band that comprises multiple active frequency bands. The aggregation bitmap is transmitted in a capabilities information exchange (CIE) signal to a second device. A guard bitmap that identifies a set of guard frequency bands is also generated and transmitted in the CIE signal. Each guard frequency band indicates leakage transmission from the VLC transmitter.
摘要翻译：用于支持可见光通信（VLC）的方法，装置和非暂时计算机可读存储介质在与其他支持VLC的设备建立链接期间在媒体访问控制（MAC）层中交换位图以进行能力场交换。生成聚合位图以指示第一设备的可见光通信（VLC）发射机是否使用包括多个活动频带的至少一个聚合频带。聚合位图在能力信息交换（CIE）信号中被发送到第二设备。识别一组保护频带的保护位图也被生成并在CIE信号中发送。每个保护频带表示来自VLC发射机的泄漏传输。

33. 发明申请

US20100255780A1 APPARATUS AND METHOD FOR INTERFERENCE MINIMIZATION IN BODY AREA NETWORKS USING LOW DUTY CYCLE AND PREAMBLE DESIGN 失效
标题翻译：使用低占空比和前置设计的身体区域网络干扰最小化的装置和方法
公开(公告)号：US20100255780A1
公开(公告)日：2010-10-07
申请号：US12689156
申请日：2010-01-18
申请人： Sridhar Rajagopal , Kiran Bynam , Jianzhong Zhang
发明人： Sridhar Rajagopal , Kiran Bynam , Jianzhong Zhang
IPC分类号： H04B7/00 , H03M13/09 , G06F11/10 , H04B15/00
CPC分类号： H04W52/287 , H04W52/243 , H04W76/28 , H04W84/18
摘要： A device is adapted for use in a body area network capable of low power communications wherein a number of piconets can operate within close proximity. The device is configured to couple to a plurality of secondary devices in a piconet. The device uses an interference mitigation technique to enable the devices in the piconet to use the same frequency and same time as a number of adjacent piconets located in close proximity to the piconet. The interference mitigation technique is at least one of a low duty cycling operation; and a preamble sequence designed to operate under interference
摘要翻译：一种设备适用于能够进行低功率通信的身体区域网络，其中多个微微网可在紧邻内操作。该设备被配置为耦合到微微网中的多个辅助设备。该设备使用干扰减轻技术来使得微微网中的设备能够使用与位于微微网附近的多个相邻微微网相同的频率和相同的时间。干扰减轻技术是低功率循环操作中的至少一种; 以及设计为在干扰下操作的前导码序列

34. 发明申请

US20100215378A1 Apparatus and method for interference mitigation and channel selection for visible light communication 有权
标题翻译：用于可见光通信的干扰减轻和信道选择的装置和方法
公开(公告)号：US20100215378A1
公开(公告)日：2010-08-26
申请号：US12584135
申请日：2009-09-01
申请人： Sridhar Rajagopal , Farooq Khan
发明人： Sridhar Rajagopal , Farooq Khan
IPC分类号： H04B10/00
CPC分类号： H04J14/0227 , H04B10/1129 , H04B10/1143 , H04B10/1149 , H04B10/116
摘要： A device and method for device association, interference mitigation and channel selection for use in a visible light communication (VLC) network. The method includes transmitting on every one of a plurality of supported color channels of a first device to estimate an ambient interference on each supported color channel. The method also includes receiving a transmission on at least some of the supported color channels, where the number of receiving color channels is less than or equal to the number of supported color channels of the transmitter. The method further includes calculating a channel quality index for each of the receiving color channels. The method still further includes selecting at least one of the receiving color channels of the first device to be used as a communication channel. The method also includes reporting the at least one communication channel to a second device in the VLC network. In certain embodiments, the method includes establishing guard color channels for each of the supported color channels.
摘要翻译：用于可见光通信（VLC）网络中的设备关联，干扰减轻和信道选择的设备和方法。该方法包括在第一设备的多个支持的彩色通道中的每一个上发送以估计每个支持的颜色通道上的环境干扰。所述方法还包括在至少一些所支持的颜色通道上接收传输，其中接收颜色通道的数量小于或等于发射机所支持的颜色通道的数量。该方法还包括为每个接收颜色通道计算信道质量指数。该方法还包括选择要用作通信信道的第一设备的接收彩色通道中的至少一个。该方法还包括将至少一个通信信道报告给VLC网络中的第二设备。在某些实施例中，该方法包括为每个所支持的颜色通道建立保护颜色通道。

35. 发明申请

US20080189468A1 High Availability Virtual Machine Cluster 有权
标题翻译：高可用性虚拟机集群
公开(公告)号：US20080189468A1
公开(公告)日：2008-08-07
申请号：US12017255
申请日：2008-01-21
申请人： Rene W. Schmidt , Sridhar Rajagopal
发明人： Rene W. Schmidt , Sridhar Rajagopal
IPC分类号： G06F12/00
CPC分类号： G06F11/203 , G06F9/455 , G06F9/45558 , G06F11/1084 , G06F11/2033 , G06F11/2035 , G06F11/2046 , G06F12/08 , G06F2009/45587
摘要： One embodiment of the present invention is a system including: (a) plural virtualization systems configured in a cluster; (b) storage accessible to each virtualization system of the cluster, wherein for each virtual machine operative in a virtualization system of the cluster, the storage maintains a representation of virtual machine state that includes at least a description of a hardware system virtualized and an image of virtualized memory state for the virtual machine; and (c) a failover system that, responsive to an interruption of, or on, a particular one of the virtualization systems, transitions at least one affected virtual machine to another virtualization system of the cluster and resumes computations of the transitioned virtual machine based on state encoded by a corresponding one of the virtual machine states represented in the storage.
摘要翻译：本发明的一个实施例是一种系统，包括：（a）在集群中配置的多个虚拟化系统; （b）群集的每个虚拟化系统可访问的存储，其中对于在集群的虚拟化系统中操作的每个虚拟机，存储维护虚拟机状态的表示，其至少包括虚拟化的硬件系统和图像的描述的虚拟机的虚拟化内存状态; 以及（c）故障转移系统，其响应于所述虚拟化系统中的特定虚拟化系统的中断或在其上运行，将至少一个受影响的虚拟机转换到所述集群的另一个虚拟化系统，并基于所述虚拟机的另一虚拟化系统恢复所述转换的虚拟机的计算状态由存储器中表示的相应的一个虚拟机状态编码。

36. 发明授权

US08984508B2 System and method for restarting a workload based on global load balancing 有权
标题翻译：基于全局负载平衡重新启动工作负载的系统和方法
公开(公告)号：US08984508B2
公开(公告)日：2015-03-17
申请号：US13151862
申请日：2011-06-02
申请人： Guoqiang Shu , Keith Farkas , Eddie Ma , Michael Nelson , Elisha Ziskind , Sridhar Rajagopal , Minwen Ji
发明人： Guoqiang Shu , Keith Farkas , Eddie Ma , Michael Nelson , Elisha Ziskind , Sridhar Rajagopal , Minwen Ji
IPC分类号： G06F9/455 , G06F9/46 , G06F9/48 , G06F9/50
CPC分类号： G06F9/4818 , G06F9/45558 , G06F9/5077 , G06F2009/45575
摘要： A method for restarting a virtual machine in a virtual computing system having a plurality of hosts and a resource scheduler for the plurality of hosts includes writing a placement request for the virtual machine to a shared channel that is accessible by the resource scheduler. The method further includes reading a placement result from the shared channel, wherein the placement result is generated by the resource scheduler responsive to the placement request; and restarting the virtual machine in accordance with the placement result.
摘要翻译：一种用于在具有多个主机和多个主机的资源调度器的虚拟计算系统中重新启动虚拟机的方法包括将虚拟机的放置请求写入由资源调度器可访问的共享信道。所述方法还包括从所述共享信道读取布置结果，其中所述布局结果由所述资源调度器响应于所述放置请求而生成; 并根据放置结果重新启动虚拟机。

37. 发明授权

US08521034B2 Apparatus and method for interference mitigation and channel selection for visible light communication 有权
标题翻译：用于可见光通信的干扰减轻和信道选择的装置和方法
公开(公告)号：US08521034B2
公开(公告)日：2013-08-27
申请号：US12584135
申请日：2009-09-01
申请人： Sridhar Rajagopal , Farooq Khan
发明人： Sridhar Rajagopal , Farooq Khan
IPC分类号： H04B10/00 , H04B10/08 , H04J14/02
CPC分类号： H04J14/0227 , H04B10/1129 , H04B10/1143 , H04B10/1149 , H04B10/116
摘要： A device and method for device association, interference mitigation and channel selection for use in a visible light communication (VLC) network. The method includes transmitting on every one of a plurality of supported color channels of a first device to estimate an ambient interference on each supported color channel. The method also includes receiving a transmission on at least some of the supported color channels, where the number of receiving color channels is less than or equal to the number of supported color channels of the transmitter. The method further includes calculating a channel quality index for each of the receiving color channels. The method still further includes selecting at least one of the receiving color channels of the first device to be used as a communication channel. The method also includes reporting the at least one communication channel to a second device in the VLC network. In certain embodiments, the method includes establishing guard color channels for each of the supported color channels.
摘要翻译：用于可见光通信（VLC）网络中的设备关联，干扰减轻和信道选择的设备和方法。该方法包括在第一设备的多个支持的彩色通道中的每一个上发送以估计每个支持的颜色通道上的环境干扰。所述方法还包括在至少一些所支持的颜色通道上接收传输，其中接收颜色通道的数量小于或等于发射机所支持的颜色通道的数量。该方法还包括为每个接收颜色通道计算信道质量指数。该方法还包括选择要用作通信信道的第一设备的接收彩色通道中的至少一个。该方法还包括将至少一个通信信道报告给VLC网络中的第二设备。在某些实施例中，该方法包括为每个所支持的颜色通道建立保护颜色通道。

38. 发明授权

US08495476B2 System and method for coding and interleaving for short frame support in visible light communication 有权
标题翻译：用于可见光通信中的短帧支持的编码和交织的系统和方法
公开(公告)号：US08495476B2
公开(公告)日：2013-07-23
申请号：US12962324
申请日：2010-12-07
申请人： Shadi Abu-Surra , Sridhar Rajagopal , Eran Pisek
发明人： Shadi Abu-Surra , Sridhar Rajagopal , Eran Pisek
IPC分类号： G06F11/00
CPC分类号： H03M13/2936 , H03M5/145 , H03M13/1515 , H03M13/2707 , H03M13/6356 , H03M13/6362 , H04B10/116 , H04L1/0042 , H04L1/0047 , H04L1/0057 , H04L1/0059 , H04L1/0065 , H04L1/0068 , H04L1/0071
摘要： A transmitter is capable of performing both Galois Field (GF) (16) and GF (256) encoding in a visual light communication system. The transmitter includes a GF (256) encoder. The transmitter also includes a first bit mapper configured to map a first number of bits to a second number of bits. The Galois Field (256) encoder is configured to receive and encode the second number of bits. The transmitter also includes a second bit mapper configured to map the second number of bits to the first number of bits. The transmitter also includes an interleaver unit that can pad bits based on a frame size and puncture the bits after interleaving and prior to transmission.
摘要翻译：发射机能够在视觉光通信系统中执行Galois Field（GF）（16）和GF（256）编码。发射机包括一个GF（256）编码器。发射机还包括配置成将第一比特数映射到第二比特数的第一比特映射器。伽罗瓦域（256）编码器被配置为接收和编码第二位数。发射机还包括配置成将第二位数映射到第一位数的第二位映射器。发射机还包括交织器单元，其可以基于帧大小来填充比特，并且在交织之后和发送之前对比特进行穿孔。

39. 发明申请

US20130051486A1 MULTIPLE ANTENNA TRANSMISSION WITH PER-ANTENNA POWER CONSTRAINTS 有权
标题翻译：具有天线功率约束的多天线传输
公开(公告)号：US20130051486A1
公开(公告)日：2013-02-28
申请号：US13595811
申请日：2012-08-27
申请人： Zhouyue Pi , Omar EI Ayach , Sridhar Rajagopal , Shadi Abu-Surra
发明人： Zhouyue Pi , Omar EI Ayach , Sridhar Rajagopal , Shadi Abu-Surra
IPC分类号： H04B7/02 , H04L27/00
CPC分类号： H04B7/0465 , H04B7/02 , H04B7/0426 , H04B7/043 , H04B7/0617 , H04B7/0897 , H04L27/2626 , H04W52/225 , H04W52/30 , H04W52/42
摘要： A method, apparatus, and system to transmit signals using multiple antennas with per-antenna power constraints. The method includes initializing a precoding algorithm to a complex matrix. The precoding algorithm is for precoding signals transmitted by a plurality of antennas. The method includes iteratively processing the precoding algorithm on a per-antenna basis by, at each iteration, sequentially updating a precoder for each of the plurality of antennas. The method includes, after each iteration, determining whether the precoding algorithm has converged based on a change in a rate of mutual information across iterations. Additionally, the method includes, in response to determining that the precoding algorithm has converged, transmitting the signals using the precoding algorithm.
摘要翻译：一种使用具有每天线功率约束的多个天线发射信号的方法，装置和系统。该方法包括将预编码算法初始化为复数矩阵。预编码算法用于预编码由多个天线发送的信号。该方法包括在每个天线的基础上迭代地处理预编码算法，在每个迭代中，顺序地更新多个天线中的每个天线的预编码器。该方法包括在每次迭代之后，基于跨越迭代的互信息速率的变化来确定预编码算法是否已经收敛。此外，该方法包括响应于确定预编码算法已经收敛，使用预编码算法发送信号。

40. 发明申请

US20120278801A1 MAINTAINING HIGH AVAILABILITY OF A GROUP OF VIRTUAL MACHINES USING HEARTBEAT MESSAGES 有权
标题翻译：使用心跳信息维护一组虚拟机的高可用性
公开(公告)号：US20120278801A1
公开(公告)日：2012-11-01
申请号：US13096188
申请日：2011-04-28
申请人： Michael NELSON , Keith Farkas , Elisha Ziskind , Sridhar Rajagopal , Guoqiang Shu , Ron Passerini , Joanne Ren
发明人： Michael NELSON , Keith Farkas , Elisha Ziskind , Sridhar Rajagopal , Guoqiang Shu , Ron Passerini , Joanne Ren
IPC分类号： G06F9/455
CPC分类号： G06F11/1438 , G06F9/45533 , G06F9/542 , G06F11/0757
摘要： Embodiments maintain high availability of software application instances in a fault domain. Subordinate hosts are monitored by a master host. The subordinate hosts publish heartbeats via a network and datastores. Based at least in part on the published heartbeats, the master host determines the status of each subordinate host, distinguishing between subordinate hosts that are entirely inoperative and subordinate hosts that are operative but partitioned (e.g., unreachable via the network). The master host may restart software application instances, such as virtual machines, that are executed by inoperative subordinate hosts or that cease executing on partitioned subordinate hosts.
摘要翻译：实施例在故障域中保持软件应用程序实例的高可用性。主机由主机监控。下级主机通过网络和数据存储发布心跳。至少部分地基于所发布的心跳，主主机确定每个从属主机的状态，区分完全不起作用的从属主机和可操作但被分区的下级主机（例如，经由网络不可达）。主主机可以重新启动由不能操作的下属主机执行的软件应用程序实例，例如虚拟机，或者停止在分区的下级主机上执行。

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