公开(公告)号：US20090205024A1

公开(公告)日：2009-08-13

申请号：US12030056

申请日：2008-02-12

申请人： Mathias Kokot ,  Sanjay Wadhwa ,  Brian M. Sullivan

发明人： Mathias Kokot ,  Sanjay Wadhwa ,  Brian M. Sullivan

IPC分类号： H04L9/32 ,  H04J15/00

CPC分类号： H04L63/08 ,  H04L12/2869 ,  H04L12/4641 ,  H04L12/4654

摘要： Methods and systems consistent with the present invention provide a dynamic mechanism to support wholesale access for broadband subscribers. This mechanism involves dynamically discovering a retail ISP for a subscriber, and dynamically cross-connecting a subscriber's connection to a logical connection corresponding to a retail ISP, and is equally applicable to static, PPP and DHCP-based subscribers. Furthermore, dynamic steering of subscribers can be performed at layer 2 or layer 3 of the OSI model.

摘要翻译： 与本发明一致的方法和系统提供了支持宽带用户的批发接入的动态机制。 该机制涉及动态地发现用户的零售ISP，并将用户的连接动态地交换到对应于零售ISP的逻辑连接，并且同样适用于静态，基于PPP和基于DHCP的用户。 此外，可以在OSI模型的层2或层3上执行用户的动态转向。

公开(公告)号：US08392593B1

公开(公告)日：2013-03-05

申请号：US11627690

申请日：2007-01-26

申请人： Sanjay Wadhwa ,  Jerome P. Moisand ,  Mathias Kokot

发明人： Sanjay Wadhwa ,  Jerome P. Moisand ,  Mathias Kokot

IPC分类号： G06F15/16 ,  G06F21/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L29/06 ,  G06F21/10 ,  H04L12/185 ,  H04L12/1854 ,  H04L29/06027 ,  H04L47/15

摘要： Network devices, such as a router and a downstream multicast distribution device, may use multiple control channels when setting up a multicast stream for a multicast request. For example, first messages may be transmitted using a first protocol to an upstream device over a first channel, the first messages indicating when a first multicast media stream is being requested by at least one of a number of client devices. Second messages may be transmitted using a second protocol over a second channel, the second messages being transmitted on a per-client basis and each identifying a one of the client devices as requesting the first multicast media stream. By using two control channels to convey the multicast channel requests, the router may obtain visibility into the action of the subscriber and can consequently perform per-subscriber operations such as access-control, bandwidth based admission control, statistics, and QoS adjustment for multicast IPTV streams received by the subscriber.

摘要翻译： 诸如路由器和下游组播分发设备之类的网络设备在为组播请求建立组播流时可以使用多个控制信道。 例如，可以使用第一协议将第一消息通过第一信道发送到上游设备，第一消息指示何时由多个客户端设备中的至少一个请求第一多播媒体流。 可以使用第二协议在第二信道上发送第二消息，第二消息是在每个客户端的基础上发送的，并且每个将客户端设备中的一个识别为请求第一多播媒体流。 通过使用两个控制信道来传送组播信道请求，路由器可以获得对用户动作的可见性，并且因此可以执行诸如接入控制，基于带宽的接纳控制，统计和用于组播IPTV的QoS调整之类的每用户操作 用户接收的流。

公开(公告)号：US20070080724A1

公开(公告)日：2007-04-12

申请号：US11538304

申请日：2006-10-03

申请人： Sanjay Wadhwa ,  Deeya Muhury ,  Pawan Tiwari

发明人： Sanjay Wadhwa ,  Deeya Muhury ,  Pawan Tiwari

IPC分类号： H03B19/00

CPC分类号： G06F1/08 ,  G06F7/68

摘要： A digital clock frequency multiplier (100) for increasing an input frequency of an input clock signal includes a generator (102) that receives the input clock signal and a high frequency digital signal. The generator (102) divides a count (Nhf) of a number of cycles of the high frequency digital signal in one period of the input clock signal by a predetermined multiplication factor (MF) for generating an output clock signal. The output clock signal has a predetermined output frequency.

摘要翻译： 用于增加输入时钟信号的输入频率的数字时钟倍频器（100）包括接收输入时钟信号和高频数字信号的发生器（102）。 发生器（102）将输入时钟信号的一个周期中的高频数字信号的周期数的计数（N Hf ）除以用于产生输出的预定乘法因子（MF） 时钟信号。 输出时钟信号具有预定的输出频率。

公开(公告)号：US20060082410A1

公开(公告)日：2006-04-20

申请号：US10964793

申请日：2004-10-14

申请人： Qadeer Khan ,  Sanjay Wadhwa ,  Kulbhushan Misri

发明人： Qadeer Khan ,  Sanjay Wadhwa ,  Kulbhushan Misri

IPC分类号： G05F1/10

CPC分类号： G05F3/30

摘要： A band-gap reference circuit for generation of voltages and currents independent of process, voltage, and temperature includes three inversely proportional to absolute temperature (IPTAT) current generators. The IPTAT current generators generate three currents that are added to generate a current independent of the absolute temperature. The generated current is passed through a switched capacitor resistor to generate the band-gap reference voltage across the switched capacitor resistor.

公开(公告)号：US08555352B2

公开(公告)日：2013-10-08

申请号：US12506755

申请日：2009-07-21

申请人： Jerome Moisand ,  Sanjay Wadhwa ,  Dilip Pillaipakkamnatt

发明人： Jerome Moisand ,  Sanjay Wadhwa ,  Dilip Pillaipakkamnatt

IPC分类号： G06F17/30

CPC分类号： H04L12/2856 ,  H04L12/185 ,  H04L12/1886 ,  H04L12/2898

摘要： A network controls provision of access functionality by an access node to provide a network service to a subscriber device. For example, the network device may control the queuing and forwarding of packets by the access node to facilitate packet transmission according to, for example, a Quality of Service class. The network device may send control messages to the access node to dynamically configure a control object stored by the access node, such as a Quality of Service profile. The network device may be a router, and the access node may be a base station that wireless communicates with a subscriber device, e.g., a cellular phone. The access node may then delivery the packets in accordance with the dynamically configured control object.

摘要翻译： 网络控制由接入节点提供接入功能以向用户设备提供网络服务。 例如，网络设备可以根据例如服务质量类来控制接入节点对分组的排队和转发以便于分组传输。 网络设备可以向接入节点发送控制消息以动态地配置由接入节点存储的控制对象，例如服务质量简档。 网络设备可以是路由器，并且接入节点可以是与用户设备（例如，蜂窝电话）进行无线通信的基站。 然后，接入节点可以根据动态配置的控制对象发送分组。

公开(公告)号：US08555347B2

公开(公告)日：2013-10-08

申请号：US12644365

申请日：2009-12-22

申请人： Kathryn De Graaf ,  John Liddy ,  Paul Raison ,  John C. Scano ,  Sanjay Wadhwa

发明人： Kathryn De Graaf ,  John Liddy ,  Paul Raison ,  John C. Scano ,  Sanjay Wadhwa

IPC分类号： G06F15/16 ,  H04L29/06

CPC分类号： H04L63/08 ,  H04L61/2015 ,  H04L63/0892

摘要： A method performed by a Dynamic Host Configuration Protocol (DHCP) server comprising receiving a DHCP DISCOVER message from a DHCP client; generating a challenge in response to the DHCP DISCOVER message; sending the challenge to an authentication device; receiving a first challenge response from the authentication device; generating a DHCP OFFER message; sending the challenge to the DHCP client in the DHCP OFFER message; receiving a DHCP REQUEST message that includes a second challenge response from the DHCP client; comparing the first challenge response with the second challenge response; and authenticating the DHCP client when the first challenge response and the second challenge response match.

摘要翻译： 一种由动态主机配置协议（DHCP）服务器执行的方法，包括从DHCP客户端接收DHCP DISCOVER消息; 响应DHCP DISCOVER消息产生挑战; 将所述挑战发送给认证设备; 从认证设备接收第一挑战响应; 生成DHCP OFFER消息; 在DHCP OFFER消息中向DHCP客户端发送挑战; 从DHCP客户端接收包括第二挑战响应的DHCP请求消息; 将第一挑战响应与第二挑战响应进行比较; 并在第一个挑战响应和第二个挑战响应匹配时验证DHCP客户端。

公开(公告)号：US08255543B2

公开(公告)日：2012-08-28

申请号：US12951986

申请日：2010-11-22

申请人： Vitali Vinokour ,  Sanjay Wadhwa ,  Jerome Moisand

发明人： Vitali Vinokour ,  Sanjay Wadhwa ,  Jerome Moisand

IPC分类号： G06F15/16

CPC分类号： H04L67/141 ,  H04L67/142 ,  H04L69/14

摘要： A network device may include logic to establish an IP session, establish a BFD session within the established IP session, transmit BFD packets within the established BFD session, and determine that the established IP session is active based upon reception of the BFD packets. In another embodiment, the logic may also determine that an IP session is active using an inactivity timer that may also trigger transmission of BFD packets.

摘要翻译： 网络设备可以包括建立IP会话的逻辑，在建立的IP会话内建立BFD会话，在建立的BFD会话内发送BFD分组，并且基于BFD分组的接收来确定所建立的IP会话是活动的。 在另一个实施例中，逻辑还可以使用也可以触发BFD分组的传输的不活动定时器来确定IP会话是活动的。

公开(公告)号：US20100191813A1

公开(公告)日：2010-07-29

申请号：US12367319

申请日：2009-02-06

申请人： Sunil Gandhewar ,  Sanjay Wadhwa ,  William Townsend ,  John Liddy

发明人： Sunil Gandhewar ,  Sanjay Wadhwa ,  William Townsend ,  John Liddy

IPC分类号： G06F15/16

CPC分类号： H04L61/2015

摘要： In general, techniques are described for automatically releasing network resources reserved for use by network devices within a network. In particular, a network device, such as a router, may include an interface card that receives a first and a second message from respective first and second client devices requesting reservation of network resources. The first message may include a first identifier, while the second message may include a second identifier. Both messages however may also include the same additional context information that identifies the same context in which the first client device operates. The router may include a control unit that determines whether the additional context information included within the first and second messages is the same. Based on a determination that this information is the same, the control unit may automatically release resources reserved for use by the first client device within the network.

摘要翻译： 一般来说，描述了自动释放为网络中的网络设备预留使用的网络资源的技术。 具体地，诸如路由器的网络设备可以包括从相应的第一和第二客户端设备接收请求预留网络资源的第一和第二消息的接口卡。 第一消息可以包括第一标识符，而第二消息可以包括第二标识符。 然而，两个消息还可以包括标识第一客户端设备操作的相同上下文的相同附加上下文信息。 路由器可以包括控制单元，其确定包括在第一和第二消息内的附加上下文信息是否相同。 基于该信息相同的确定，控制单元可以自动释放为网络中的第一客户端设备预留使用的资源。

公开(公告)号：US07715391B1

公开(公告)日：2010-05-11

申请号：US12183882

申请日：2008-07-31

申请人： Sanjay Wadhwa ,  Derek Harkness

发明人： Sanjay Wadhwa ,  Derek Harkness

IPC分类号： H04L12/56

CPC分类号： H04L12/185 ,  H04L12/1886

摘要： Methods and systems consistent with the present invention provide a way to provide optimal delivery of multicast content by retail ISPs in a wholesale aggregation network environment. A broadband network gateway dynamically informs an access node of a mapping between a multicast domain corresponding to the retail service provider, allowing the gateway to send multicast data to the access node for replication to subscribers instead of replicating the multicast data at the gateway. The gateway dynamically informs the access node of the mapping using a standardized access node control protocol. The gateway can also dynamically instruct the access node to update or delete the mapping.

摘要翻译： 与本发明一致的方法和系统提供了一种在批发聚合网络环境中为零售ISP提供多播内容的最佳传递的方式。 宽带网关网关动态地向接入节点通知对应于零售服务提供商的多播域之间的映射，允许网关向该接入节点发送组播数据以复制到订户，而不是在该网关处复制多播数据。 网关使用标准化的接入节点控制协议动态地通知接入节点的映射。 网关还可以动态地指示接入节点更新或删除映射。

公开(公告)号：US20070018712A1

公开(公告)日：2007-01-25

申请号：US11490439

申请日：2006-07-20

申请人： Siddhartha GK ,  Qadeer Khan ,  Divya Tripathi ,  Sanjay Wadhwa ,  Kulbhushan Misri

发明人： Siddhartha GK ,  Qadeer Khan ,  Divya Tripathi ,  Sanjay Wadhwa ,  Kulbhushan Misri

IPC分类号： H01L35/00

CPC分类号： H03K19/00369

摘要： A compensation circuit and a method for compensating for process, voltage and temperature (PVT) variations in an integrated circuit (IC). The IC includes several functional modules, each of which includes a set of functional units, and generates an output signal in response to an input signal. The compensation circuit includes a code generator and a logic module. The code generator generates a digital code for each functional unit. The digital codes are based on phase differences between the input signal and the output signal. The logic module generates calibration codes based on the digital codes. The calibration codes compensate for the PVT variations in the corresponding functional units.

摘要翻译： 补偿电路和补偿集成电路（IC）中的工艺，电压和温度（PVT）变化的方法。 IC包括几个功能模块，每个功能模块包括一组功能单元，并且响应于输入信号产生输出信号。 补偿电路包括代码生成器和逻辑模块。 代码生成器为每个功能单元生成数字代码。 数字码基于输入信号和输出信号之间的相位差。 逻辑模块基于数字代码生成校准代码。 校准代码补偿相应功能单元中的PVT变化。