Rapid datarate estimation for a data stream multiplexer
    1.
    发明授权
    Rapid datarate estimation for a data stream multiplexer 有权
    数据流多路复用器的快速数据估计

    公开(公告)号:US07764717B1

    公开(公告)日:2010-07-27

    申请号:US11123820

    申请日:2005-05-06

    IPC分类号: H04J3/02

    摘要: A multiplexing system having an input unit, a storage unit and control unit. The input unit receives data units corresponding to multiple source data streams and extracts packets from the data units. The control unit computes data rate estimates for the source data streams based on timestamps in the source data streams. The storage unit stores a packet count and previous timestamp value for each source data stream. The control unit computes a preliminary data rate estimate for a source data stream based on samples of a local clock if timestamps are not received promptly. The control unit also computes scheduling rates based on the data rate estimates. The scheduling rates are used to control the rates of allocation of data from the source data streams into a multiplexed output stream. The control unit computes scheduling rates in a way that avoids oversubscription of the output channel.

    摘要翻译: 一种具有输入单元,存储单元和控制单元的复用系统。 输入单元接收与多个源数据流相对应的数据单元,并从数据单元提取分组。 控制单元基于源数据流中的时间戳计算源数据流的数据速率估计。 存储单元存储每个源数据流的分组计数和先前时间戳值。 如果不及时接收到时间戳,则控制单元基于本地时钟的采样来计算源数据流的初步数据速率估计。 控制单元还基于数据速率估计来计算调度速率。 调度速率用于控制从源数据流到多路复用输出流的数据分配速率。 控制单元以避免输出通道过度预订的方式计算调度速率。

    Digital phase locked loops for packet stream rate matching and restamping
    2.
    发明授权
    Digital phase locked loops for packet stream rate matching and restamping 有权
    数字锁相环,用于分组流速率匹配和恢复

    公开(公告)号:US07333468B1

    公开(公告)日:2008-02-19

    申请号:US11129798

    申请日:2005-05-16

    摘要: A packet stream multiplexer may include one or more control loops (e.g., digital phase locked loops) for tracking the source clock frequency associated with a packet stream. A first control loop may slowly drive an error between a received timestamp and an estimated timestamp to zero. A second control loop may more quickly drive a first derivative of the error to zero. The second control loop may include a set of digital filters ordered according to tracking speed. The output of the slowest filter is initially selected for updating the source clock frequency estimate. As time progresses, the faster filters are selected in succession. The estimated source clock frequency is used to restamp packets of the packet stream as they are sent out onto an output channel.

    摘要翻译: 分组流多路复用器可以包括用于跟踪与分组流相关联的源时钟频率的一个或多个控制回路(例如,数字锁相环)。 第一个控制环路可能会缓慢地将接收的时间戳和估计时间戳之间的错误驱动为零。 第二个控制循环可以更快地将误差的一阶导数驱动到零。 第二控制循环可以包括根据跟踪速度排序的一组数字滤波器。 最初选择最慢滤波器的输出用于更新源时钟频率估计。 随着时间的推移,连续选择更快的过滤器。 估计的源时钟频率用于在分组流发送到输出信道上时重新分组分组流的分组。

    Thin network protocol
    4.
    发明授权
    Thin network protocol 有权
    瘦网络协议

    公开(公告)号:US08566389B2

    公开(公告)日:2013-10-22

    申请号:US11784177

    申请日:2007-04-04

    IPC分类号: G06F15/16

    摘要: A method for a server to process a transaction on remote client hardware is disclosed. A local request is generated for the transaction. A driver level message to the remote client hardware is generated. The driver level message is sent directly to the remote client hardware to process the transaction.

    摘要翻译: 公开了一种用于处理远程客户端硬件上的事务的服务器的方法。 为事务生成本地请求。 生成到远程客户机硬件的驱动程序级消息。 驱动程序级消息直接发送到远程客户端硬件以处理事务。

    Universal serial bus host controller driver over a network
    7.
    发明授权
    Universal serial bus host controller driver over a network 有权
    通用串行总线主机控制器驱动程序通过网络

    公开(公告)号:US08813098B2

    公开(公告)日:2014-08-19

    申请号:US12082978

    申请日:2008-04-15

    摘要: A method to interact with a local USB device is disclosed. Messages are transmitted to a remote host controller driver from a host controller associated with the local USB device. Messages are received from the remote host controller driver for the host controller. In some embodiments, a transfer descriptor prototype is received from the remote host controller driver. A completed transfer descriptor is received from the remote host controller driver. The completed transfer descriptor and the transfer descriptor prototype are transformed into a modified transfer descriptor in part by using a collection of rules. The modified transfer descriptor is submitted to the local host controller without intervention from the remote host controller driver.

    摘要翻译: 公开了与本地USB设备交互的方法。 消息从与本地USB设备相关联的主机控制器传输到远程主机控制器驱动程序。 从主机控制器的远程主机控制器驱动程序接收到消息。 在一些实施例中,从远程主机控制器驱动程序接收传输描述符原型。 从远程主机控制器驱动程序接收完成的传输描述符。 完成的传输描述符和传输描述符原型通过使用规则集合部分地被转换成修改的传输描述符。 修改的传输描述符被提交给本地主机控制器,而不需要远程主机控制器驱动程序的干预。

    Universal serial bus selective encryption
    8.
    发明申请
    Universal serial bus selective encryption 有权
    通用串行总线选择性加密

    公开(公告)号:US20090094672A1

    公开(公告)日:2009-04-09

    申请号:US12221403

    申请日:2008-08-01

    IPC分类号: H04L9/00

    摘要: A method to interact with a remote USB device is disclosed. An identifying message is received from a remote client associated with the remote USB device. The remote USB device is identified based at least in part on the identifying message from the remote client. A security policy is determined for the remote USB device. A policy message is transmitted to the remote client for selectively implementing the security policy of the remote USB device. A method to interact with a local USB device is disclosed. An identifying message is determined by performing a host controller service for the local USB device. The identifying message is transmitted to a server. A policy message is received from the server for selectively implementing a security policy on the local USB device. The security policy is regarded and configuring the host controller service.

    摘要翻译: 公开了与远程USB设备交互的方法。 从与远程USB设备相关联的远程客户端接收到识别消息。 至少部分地基于来自远程客户端的识别消息来识别远程USB设备。 确定远程USB设备的安全策略。 策略消息被发送到远程客户端以选择性地实现远程USB设备的安全策略。 公开了与本地USB设备交互的方法。 通过为本地USB设备执行主机控制器服务来确定识别消息。 识别消息被发送到服务器。 从服务器接收到策略消息,用于选择性地在本地USB设备上实施安全策略。 安全策略被视为和配置主机控制器服务。

    Thin client discovery
    9.
    发明申请
    Thin client discovery 有权
    瘦客户机发现

    公开(公告)号:US20090094365A1

    公开(公告)日:2009-04-09

    申请号:US11973319

    申请日:2007-10-05

    IPC分类号: G06F15/173

    CPC分类号: G06F15/173

    摘要: A method of assigning a resource to provide services to a thin client is disclosed. The thin client is discovered by receiving a response to a discovery request wherein the response is directed to a broker. The resource to allocate for the thin client is determined. The thin client to the resource is mapped. A connection to the thin client is requested to be established between the resource and the thin client.

    摘要翻译: 公开了一种向瘦客户端分配资源以提供服务的方法。 通过接收对发现请求的响应来发现瘦客户端,其中响应被引导到代理。 确定为瘦客户端分配的资源。 映射资源的瘦客户端。 要求在资源和瘦客户机之间建立与瘦客户端的连接。