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    • 1. 发明授权
    • Method and computer program product for scheduling network communication packets originating from different flows having unique service requirements
    • 用于调度源自具有独特服务要求的不同流的网络通信分组的方法和计算机程序产品
    • US06247061B1
    • 2001-06-12
    • US09094045
    • 1998-06-09
    • John R. DouceurYoram BernetOfer BarCarol Ann BellTsung-Yuan Charles TaiRajendra S. Yavatkar
    • John R. DouceurYoram BernetOfer BarCarol Ann BellTsung-Yuan Charles TaiRajendra S. Yavatkar
    • G06F1516
    • H04L47/32H04L47/10H04L47/21H04L47/215H04L47/22H04L47/2433H04L47/2441H04L47/28H04L47/50H04L47/564H04L47/60H04L47/621H04L47/627
    • A method and computer program product for scheduling network communication packets in a multimedia environment where different packet streams have reservations of network bandwidth to form packet flows. The present invention divides the packet scheduling function into distinct components that may be implemented as separate drivers in a layered driver environment as exists, for example, in the Microsoft Windows NT operating system. One component is called a conformer and will generate and assign to each packet in the packet flow at least one conformance time that signifies the earliest a packet may be sent and still conform to the network resource requirements associated with the flow. Many different conformance algorithms can be supported so that the best algorithm is used for a particular packet flow and the service requirements that it represents. Should it be necessary to actually hold a packet until the conformance time is met, a shaper component is used to delay the packets. Finally, a sequencer component will send packets out as fast as possible over the network interface card. Each flow of packets processed by the sequencer component has at least two priorities, one for when the packets are conforming and one for when the packets are non-conforming. The sequencer component maintains priority lists of packet flow queues and will service the highest priority queue list followed by each successive priority list until no packets remain for transmission or the network interface card is unable to handle more packets. Each priority list will have a queue discipline associated therewith that will determine in what order the packets are taken off of the respective flow queues.
    • 一种用于在多媒体环境中调度网络通信分组的方法和计算机程序产品,其中不同分组流具有网络带宽的预留以形成分组流。 本发明将分组调度功能划分为不同的组件,其可以被实现为分层驱动程序环境中的独立驱动程序,例如在Microsoft Windows NT操作系统中。 一个组件被称为构图器,并且将生成并分配给分组流中的每个分组至少一个一致的时间,其表示分组可以被发送的最早的一致性,并且仍然符合与流相关联的网络资源需求。 可以支持许多不同的一致性算法,以便将最佳算法用于特定数据包流及其所代表的服务要求。 如果需要在一致性时间之前实际保存数据包,则会使用整形器来延迟数据包。 最后,定序器组件将通过网络接口卡尽快发送数据包。 由定序器组件处理的每个流的流具有至少两个优先级,一个用于当数据包一致时,一个用于当数据包不符合时。 定序器组件保持分组流队列的优先级列表,并且将服务于优先级最高的队列列表,随后是每个连续的优先级列表,直到没有分组保留用于传输或网络接口卡不能处理更多分组。 每个优先级列表将具有与其相关联的队列规则,其将以什么顺序确定分组从相应的流队列中取走。
    • 9. 发明授权
    • Combined device and service discovery technique in stations supporting tunneled direct link setup (TDLS)
    • 支持隧道直接链路建立(TDLS)的站中的组合设备和服务发现技术
    • US08462667B2
    • 2013-06-11
    • US13584124
    • 2012-08-13
    • Xiaohoag GongVictor B. LortzTsung-Yuan Charles Tai
    • Xiaohoag GongVictor B. LortzTsung-Yuan Charles Tai
    • G06F15/177
    • H04L12/6418H04W8/005H04W76/14
    • A tunneled direct link set-up (TDLS) capable wireless network may comprise a router such as an access point (AP) and a plurality of stations (STA) including service consumer and service provider station. A service consumer station may generate and send a layer-2 query frame to the plurality of stations. A service provider station may generate a layer-2 service frame in response to receiving the layer-2 query frame. The service consumer station may discover the service provider station and the services offered by the service provider station based on the layer-2 service frame. Also, the service consumer may discover the service provider station using layer-2 query frame and may discover the services offered by the service provider station using higher layer service discovery procedure.
    • 具有无线网络的隧道直接链路建立(TDLS)可以包括诸如接入点(AP)的路由器和包括服务用户和服务提供商站在内的多个站(STA)。 服务使用者站可以生成并向多个站发送第二层查询帧。 响应于接收到第二层查询帧,服务提供商站可以生成二层服务帧。 服务使用者站可以基于第二层服务帧发现服务提供商站和由服务提供商站提供的服务。 此外,服务使用者可以使用第二层查询帧发现服务提供商站,并且可以使用更高层服务发现过程来发现由服务提供商站提供的服务。
    • 10. 发明授权
    • Mechanisms for accessing unique features of telephony networks from a
protocol-Independent data transport interface
    • 从协议无关的数据传输接口访问电话网络的独特功能的机制
    • US5674003A
    • 1997-10-07
    • US430460
    • 1995-04-28
    • David B. AndersenTsung-Yuan Charles Tai
    • David B. AndersenTsung-Yuan Charles Tai
    • H04M3/56G06F17/00
    • H04M3/567Y10S370/905
    • In a computer video conferencing system it is often necessary to transmit multiple channels of information between remote computers, such as a video channel, an audio channel and data sharing channel. A socket based transport interface can be utilized to establish communication channels between remote computers over a connection oriented telephony network. A plurality of sockets are created at each endpoint, one for each type of data stream to be transferred between the computers. The sockets are formed into a group to indicate to the computer transport service provider that the data streams from the sockets can utilize the same telephony connection, and a quality-of-service specification is associated with the socket group so that the telephony connection can be established according to the requirements of the socket group. If a new data stream needs to be transmitted and there is already a telephony connection established, a new socket is created and added to the existing socket group. If the newly added socket significantly affects the quality-of-service requirements of the socket group, a new quality-of-service may be negotiated with the telephony network.
    • 在计算机视频会议系统中,通常需要在远程计算机之间传输多个信道,例如视频信道,音频信道和数据共享信道。 可以使用基于套接字的传输接口来通过面向连接的电话网络在远程计算机之间建立通信信道。 在每个端点处创建多个套接字,一个用于在计算机之间传送的每种类型的数据流。 套接字被形成一组以向计算机传输服务提供商指示来自套接字的数据流可以利用相同的电话连接,并且服务质量规范与套接字组相关联,使得电话连接可以是 根据插座组的要求建立。 如果需要传输新的数据流,并且已经建立了电话连接,则会创建一个新的套接字并将其添加到现有套接字组。 如果新添加的套接字显着影响套接字组的服务质量要求,则可以与电话网络协商新的服务质量。