Method and apparatus to reduce the impact of raman interference in passive optical networks with RF video overlay
    1.
    发明授权
    Method and apparatus to reduce the impact of raman interference in passive optical networks with RF video overlay 有权
    减少射频视频叠加无源光网络中拉曼干扰影响的方法和装置

    公开(公告)号:US09312955B2

    公开(公告)日:2016-04-12

    申请号:US11532633

    申请日:2006-09-18

    摘要: Raman interference (also known as Raman scattering) during an idle frame transmission state in a passive optical network (PON) having radio frequency video overlay is reduced by generating and transmitting data packets having both random data and random length. Randomly varying both the packet data content and the packet length can achieve significant improvement in Raman interference reduction. The random packet data and length in effect spreads the interference across a spectrum wide enough that there is no interference effect perceptible to a television viewer.

    摘要翻译: 通过产生和发送具有随机数据和随机长度两者的数据分组,减少具有射频视频叠加的无源光网络(PON)中的空闲帧传输状态期间的拉曼干涉(也称为拉曼散射)。 随机改变分组数据内容和分组长度可以显着提高拉曼干扰降低。 随机分组数据和长度有效地在足够宽的频谱上扩展干扰,使得没有电视观看者可以感知到的干扰效应。

    SYSTEM AND METHOD FOR RECOVERY OF PACKETS IN OVERLAY NETWORKS
    4.
    发明申请
    SYSTEM AND METHOD FOR RECOVERY OF PACKETS IN OVERLAY NETWORKS 有权
    用于在覆盖网络中恢复分组的系统和方法

    公开(公告)号:US20100165830A1

    公开(公告)日:2010-07-01

    申请号:US12644796

    申请日:2009-12-22

    IPC分类号: H04J1/16 H04L12/56

    摘要: The present invention relates to a packet recovery method for packets communicated between sender and receiver nodes of an overlay network that runs over an underlying IP network. The present invention executes a packet recovery process at a receiver node upon satisfaction of a packet recovery condition that is associated with meeting a deadline driven criteria for a transmitted packet. The packet recovery process associates N number of scheduled times with N requests for retransmission of the transmitted packet. At least one of the N scheduled times includes a receiver waiting time. At each N scheduled time, a request for retransmission of the transmitted packet is transmitted to a source node. A packet retransmission process at the sender node is executed upon the first receipt of a request for retransmission of the transmitted packet. In one embodiment, the packet retransmission process retransmits the transmitted packet to the receiver node at M number of scheduled times, where the N and M are non-zero positive integers and at least one of the N or M number of scheduled times is greater than one. In another embodiment, the packet retransmission process uses an erasure coding function, with integer parameter k greater than 1 and less than M, to generate M encoded blocks such that any k out of M encoded blocks are sufficient to recreate the transmitted packet at the receiver node and transmits the M encoded blocks to the receiver node at M scheduled times, where the N and M are non-zero positive integers and M is greater than 2. The M scheduled times are relative to the first receipt of the request for retransmission of the transmitted packet and at least one of the M scheduled times includes a sender waiting time.

    摘要翻译: 本发明涉及一种在覆盖网络的发送方和接收方节点之间通过下行IP网络运行的数据包的数据包恢复方法。 本发明在满足与满足发送分组的最后期限驱动标准相关联的分组恢复条件的情况下,在接收机节点处执行分组恢复处理。 分组恢复过程将N个调度时间与N个请求重传发送的分组相关联。 N个预定时间中的至少一个包括接收机等待时间。 在每个N个调度时间,将发送的分组的重传请求发送到源节点。 在首次接收到所发送的分组的重传请求时,执行发送方节点处的分组重传过程。 在一个实施例中,分组重传过程以M个调度时间将发送的分组重传到接收机节点,其中N和M是非零正整数,并且N或M个预定时间中的至少一个大于 一。 在另一个实施例中,分组重传过程使用具有大于1且小于M的整数参数k的擦除编码功能来生成M个编码块,使得M个编码块中的任何k个足以在接收器处重新发送所发送的分组 节点,并以M个调度时间将M个编码块发送到接收机节点,其中N和M是非零正整数,M大于2.M个调度时间相对于第一次接收到重传请求 发送的分组和M个调度时间中的至少一个包括发送者等待时间。

    SYSTEMS AND METHODS OF UTILIZING MULTIPLE SATELLITE TRANSPONDERS FOR DATA DISTRIBUTION
    5.
    发明申请
    SYSTEMS AND METHODS OF UTILIZING MULTIPLE SATELLITE TRANSPONDERS FOR DATA DISTRIBUTION 审中-公开
    用于数据分配的多个卫星转接器的系统和方法

    公开(公告)号:US20080305736A1

    公开(公告)日:2008-12-11

    申请号:US12049113

    申请日:2008-03-14

    IPC分类号: H04H20/74

    CPC分类号: H04B7/18517

    摘要: Systems and method for providing digital data signals in conjunction with multiple satellite transponders are described. An uplink apparatus is configured to divide and recombine the digital data signal to generate a composite signal. The composite signal is then provided to a satellite and retransmitted by a plurality of satellite transponders to a content receiver. The content receiver is configured to recombine the plurality of transponder signals to regenerate the digital data signal.

    摘要翻译: 描述了与多个卫星转发器一起提供数字数据信号的系统和方法。 上行链路装置被配置为对数字数据信号进行分频和复合以产生复合信号。 然后,复合信号被提供给卫星并由多个卫星转发器重传到内容接收器。 内容接收器被配置为重组多个应答器信号以再生数字数据信号。

    METHOD AND APPARATUS TO REDUCE THE IMPACT OF RAMAN INTERFERENCE IN PASSIVE OPTICAL NETWORKS WITH RF VIDEO OVERLAY
    6.
    发明申请
    METHOD AND APPARATUS TO REDUCE THE IMPACT OF RAMAN INTERFERENCE IN PASSIVE OPTICAL NETWORKS WITH RF VIDEO OVERLAY 有权
    减少无源光网络中拉曼干扰对射频视频覆盖的影响的方法和设备

    公开(公告)号:US20070269212A1

    公开(公告)日:2007-11-22

    申请号:US11532633

    申请日:2006-09-18

    IPC分类号: H04B10/20

    摘要: Raman interference (also known as Raman scattering) during an idle frame transmission state in a passive optical network (PON) having radio frequency video overlay is reduced by generating and transmitting data packets having both random data and random length. Randomly varying both the packet data content and the packet length can achieve significant improvement in Raman interference reduction. The random packet data and length in effect spreads the interference across a spectrum wide enough that there is no interference effect perceptible to a television viewer.

    摘要翻译: 通过产生和发送具有随机数据和随机长度两者的数据分组,减少具有射频视频叠加的无源光网络(PON)中的空闲帧传输状态期间的拉曼干涉(也称为拉曼散射)。 随机改变分组数据内容和分组长度可以显着提高拉曼干扰降低。 随机分组数据和长度有效地在足够宽的频谱上扩展干扰,使得没有电视观看者可以感知到的干扰效应。

    High refresh-rate retrieval of freshly published content using distributed crawling
    7.
    发明授权
    High refresh-rate retrieval of freshly published content using distributed crawling 有权
    使用分布式爬行技术高速刷新新鲜出版的内容

    公开(公告)号:US07299219B2

    公开(公告)日:2007-11-20

    申请号:US10257255

    申请日:2001-05-08

    IPC分类号: G06F17/30

    摘要: A system for maximal gathering of fresh information added to a network such as the as the Internet and for processing the gathered fresh information. A link server (2) sends a batch of links to check (3) to a crawler (1B). Crawler (1B) them executes its crawling assignment by filtering the encountered content and extracting only that which is new or changed (4). Crawler (1B) then returns this content (4) to at least one data center and any interested web mining application (5). By using the crawlers (1A-E) to filter the data and only return or notify regarding, the fresh content, less bandwidth is needed to get the information to the web mining application (5).

    摘要翻译: 用于最大限度地收集添加到诸如因特网的网络并用于处理所收集的新鲜信息的新信息的系统。 链接服务器(2)发送一批链接以检查(3)到爬行器(1B)。 爬虫(1 B)他们通过过滤遇到的内容并提取只是新的或改变的(4)来执行抓取分配。 履历(1 B)然后将此内容(4)返回至少一个数据中心和任何感兴趣的网络挖掘应用程序(5)。 通过使用爬虫(1 A-E)过滤数据,仅返回或通知,新鲜内容需要较少的带宽才能将信息提供给Web挖掘应用程序(5)。

    Method and apparatus for pressure control and flow measurement
    9.
    发明授权
    Method and apparatus for pressure control and flow measurement 有权
    用于压力控制和流量测量的方法和装置

    公开(公告)号:US07204155B2

    公开(公告)日:2007-04-17

    申请号:US11475805

    申请日:2006-06-27

    IPC分类号: G01F1/00

    摘要: A method and apparatus for gas control is provided. The apparatus may be used for controlling gases delivered to a chamber, controlling the chamber pressure, controlling the delivery of backside gas between a substrate and substrate support and the like. In one embodiment, an apparatus for controlling gas control includes at least a first flow sensor having a control valve, a first pressure sensor and at least a second pressure sensor. An inlet of the first flow sensor is adapted for coupling to a gas supply. A control valve is coupled to an outlet of the flow sensor. The first pressure sensor is adapted to sense a metric indicative of the pressure upstream of the first flow sensor. The second pressure sensor is adapted to sense a metric indicative of the pressure downstream of the control valve.

    摘要翻译: 提供了一种用于气体控制的方法和装置。 该装置可以用于控制输送到室的气体,控制室压力,控制衬底和衬底支撑件之间的背面气体的传送等。 在一个实施例中,用于控制气体控制的装置包括至少第一流量传感器,其具有控制阀,第一压力传感器和至少第二压力传感器。 第一流量传感器的入口适于联接到气体供应。 控制阀联接到流量传感器的出口。 第一压力传感器适于感测指示第一流量传感器上游的压力的度量。 第二压力传感器适于感测指示控制阀下游的压力的量度。

    Method and apparatus for treating fluids
    10.
    发明申请
    Method and apparatus for treating fluids 失效
    用于处理流体的方法和装置

    公开(公告)号:US20070051685A1

    公开(公告)日:2007-03-08

    申请号:US11304348

    申请日:2005-12-15

    IPC分类号: C02F1/48

    摘要: A method and apparatus for treating a fluid to destroy, remove, or reduce undesirable agents, such as microorganisms, particles or ions, contained in the fluid and/or to inhibit the formation of scale are disclosed. The invention includes an apparatus for treating a fluid to destroy, remove, or reduce undesirable agents, such as microorganisms, particles, or ions, contained in the fluid and/or to inhibit the formation of scale. The apparatus can include an open fluid directional means or conduit. The preferred open fluid directional means is a conduit manufactured of resilient, corrosion-resistant material. The apparatus is attached to a power source and has a controller means. The controller means is desirably a microprocessor and can include a switching means for regulating the current to the apparatus. However, simpler circuits and components can be used for the controller means. The apparatus includes a field generating means. The field generating means forms a treatment field. The treatment field is a magnetic field and/or an electrical field in an effective dose sufficient to treat the fluid. The effective dose is determined by the exposure time(s) and strength(s) of the treatment field(s) and the concentration of contaminants present in the fluid subjected to the treatment.

    摘要翻译: 公开了一种用于处理流体以破坏,去除或减少包含在流体中的不期望的试剂,例如微生物,颗粒或离子和/或抑制水垢形成的方法和装置。 本发明包括一种用于处理流体以破坏,去除或减少包含在流体中的不期望的物质,例如微生物,颗粒或离子和/或抑制水垢形成的装置。 该装置可以包括开放的流体定向装置或导管。 优选的开放流体定向装置是由弹性的耐腐蚀材料制成的导管。 该装置附接到电源并具有控制装置。 控制器装置理想地是微处理器,并且可以包括用于调节到设备的电流的开关装置。 然而,更简单的电路和组件可以用于控制器装置。 该装置包括场产生装置。 场产生装置形成治疗场。 治疗场是具有足以治疗流体的有效剂量的磁场和/或电场。 有效剂量由处理场的暴露时间和强度以及存在于经受处理的流体中的污染物的浓度决定。