公开(公告)号：EP1990938A1

公开(公告)日：2008-11-12

申请号：EP07107929.7

申请日：2007-05-10

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard ,  Aust, Andreas ,  Brocke, Jens ,  Gläser, Frank ,  Köhler, Ralf ,  Kubsch, Stefan

IPC: H04J3/06 ,  H04L12/56

CPC classification number: H04J3/0667

Abstract: The invention relates to a method for synchronizing a clock of a network component (A) with a clock of a further network component (B) communicatively connected to the network component (A) in a network and a network component, whereby the method comprises the following steps: determining a set of forward transition delays for transmission of messages from the network component (A) to the further network component (B) and a set of corresponding backward transition delays for transmission of messages from the further network component (B) to the network component (A), selecting a minimum forward transition delay (minF) from the set of forward transition delays, selecting a minimum backward transition delay from the set of backward transition delays (minB), deriving an estimated value for an offset between the clock of the network component (A) and the clock of the further network component (B) from the selected minimum forward transition delay (minF) and minimum backward transition delay (minB), and adjusting the clock of the network component (A) in accordance with the estimated value for the offset estimate.

Abstract translation: 本发明涉及一种用于与另一网络组件（B），可通信地连接到网络中的网络组件（A）和网络部件，的一个时钟同步的网络部件（A）的时钟，由此所述方法包括 以下步骤：确定挖掘一组正向迁移延迟用于从所述网络组件（A）向所述另外的网络组件（B）和一组从所述另外的网络组件（B），对应于消息的发送后向迁移延迟的消息的传输来的 所述网络组件（A）选择从所述一组前向迁移延迟的最小前向迁移延迟（MINF），选择从该组向后迁移延迟（MINB）的最小后向迁移延迟，在估计值之间，以抵消导出 从所选择的最小前向迁移延迟（MINF）和最小后向迁移德拉所述网络组件（A）和所述另外的网络组件（B）的时钟的时钟 Y（MINB），以及调整与所述估计值的偏移估计在雅舞蹈所述网络组件（A）的时钟。

公开(公告)号：EP2146465A1

公开(公告)日：2010-01-20

申请号：EP08160378.9

申请日：2008-07-15

Applicant: Deutsche Thomson OHG

Inventor： Brocke, Jens ,  Aust, Andreas ,  Gläser, Frank ,  Köhler, Ralf ,  Kubsch, Stefan ,  Siemens, Eduard

IPC: H04L12/56

CPC classification number: H04L47/781 ,  H04L47/10 ,  H04L47/2408 ,  H04L47/2425 ,  H04L47/70 ,  H04L47/724 ,  H04L47/746

Abstract: The invention relates to a new type of quality of service architecture for a network assembly and a corresponding computer network system. The Internet technology as approved by the IETF organization has defined different services. One is the integrated services (IntServ) and the other the differentiated services (DiffServ) architecture. Another is the RSVP Protocol according to which Quality of Service can be implemented with accuracy and richer functionality.
The invention shows a way how less sophisticated QoS managers inside the network with only DiffServ or Intserv capability, can be used for enhancing the QoS functionality based on so-called RSVP shadowing messages, and easy to implement RSVP shadowing stacks.

Abstract translation: 本发明涉及用于网络组件的新型服务质量体系结构以及相应的计算机网络系统。 IETF组织批准的互联网技术定义了不同的服务。 一个是综合业务（IntServ），另一个是区分服务（DiffServ）架构。 另一个是RSVP协议，根据该协议，服务质量可以实现精确和更丰富的功能。 本发明展示了如何利用仅具有DiffServ或Intserv能力的较不复杂的QoS管理器来基于所谓的RSVP遮蔽消息来增强QoS功能，并且易于实现RSVP遮蔽栈。

公开(公告)号：EP2037634A1

公开(公告)日：2009-03-18

申请号：EP07116158.2

申请日：2007-09-11

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard ,  Gläser, Frank ,  Brocke, Jens ,  Kubsch, Stefan ,  Köhler, Ralf ,  Aust, Andreas

IPC: H04L12/56

CPC classification number: H04L47/781 ,  H04L47/70 ,  H04L47/72 ,  H04L47/826

Abstract: The invention relates to a method for managing network resources in a network (10) with a network management device (M), a network component (A), and a further network component (B), and a network management device (M), the method comprising the following steps: transmitting a request for an advance reservation of a network resource (2) by the network component (A) to the network management device (M), wherein the request includes information regarding a reservation start time (11) and a reservation end time (13); transmitting a request for an ad-hoc reservation of a further network resource (4) by the further network component (B) to the network management device (M); allocating the further network resource (4) to the further network component (B) by the network management device (M); and allocating the network resource (2) to the network component (A) by the network management device (M) at the reservation start time (11), wherein the network resource (2) comprises a part or all of the further network resource (4).

Abstract translation: 本发明涉及一种用网络管理设备（M），网络组件（A）和另外的网络组件（B）以及网络管理设备（M）管理网络（10）中的网络资源的方法， 该方法包括以下步骤：由网络组件（A）向网络管理设备（M）发送对网络资源（2）的预先预约的请求，其中该请求包括关于预约开始时间（11）的信息， 和预约结束时间（13）; 将所述另一网络组件（B）对另一网络资源（4）的临时保留的请求发送到所述网络管理装置（M）; 网络管理设备（M）将另外的网络资源（4）分配给另外的网络组件（B）; 以及在预留开始时间（11）由网络管理设备（M）将网络资源（2）分配给网络组件（A），其中网络资源（2）包括部分或全部另外的网络资源 4）。

公开(公告)号：EP2209240A1

公开(公告)日：2010-07-21

申请号：EP09305053.2

申请日：2009-01-20

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard ,  Eggert, Daniel

IPC: H04J3/06 ,  H04L12/56 ,  H04L29/06 ,  H04N7/32

CPC classification number: H04L47/10 ,  H04L47/2416 ,  H04L47/283 ,  H04L47/30 ,  H04N21/2401

Abstract: The invention is related to the field of flow control between two computing nodes over a packet switching network. Furthermore, the invention concerns a method for controlling data flow between a sending node SN and a receiving node RN over a packet switching network, data being sent with a current data rate SR onto a protocol-specific buffer BU of the receiving node RN, an application AP reading data stored in the buffer BU at a playback rate SPR,
According to the invention, it involves the following steps:
- Notifying by the sending node SN to the receiving node RN about its maximum sending rate SRMax;
- Determining by the receiving node RN a desired sending rate DSR value for the sending node SN from playback rate SPR value;
- when the desired sending rate DSR value is significantly different from the current data rate SR value, notifying the desired sending rate DSR value by the receiving node RN to the sending node SN.

Abstract translation: 本发明涉及分组交换网络上的两个计算节点之间的流控制领域。 此外，本发明涉及一种用于通过分组交换网络控制发送节点SN和接收节点RN之间的数据流的方法，用当前数据速率SR发送的数据到接收节点RN的协议特定缓冲器BU上， 应用AP以回放速率SPR读取存储在缓冲器BU中的数据，根据本发明，涉及以下步骤： - 通过发送节点SN向接收节点RN通知其最大发送速率SRMax; - 由接收节点RN根据播放速率SPR值确定发送节点SN的期望发送速率DSR值; - 当所需发送速率DSR值与当前数据速率SR值显着不同时，由发送节点SN向接收节点RN通知所需发送速率DSR值。

公开(公告)号：EP2107708A1

公开(公告)日：2009-10-07

申请号：EP08154106.2

申请日：2008-04-04

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard

IPC: H04L1/16

CPC classification number: H04L1/1858

Abstract: The invention relates to a method for transporting data over a data connection between a sending network component (1) and a receiving network component (3) via a network (5), and a network component (3). The method solves a problem with the reliable data transport protocol according to which a number of data transport packets will be acknowledged in regular time intervals. When such an acknowledge message is get lost, the sending network component will have to keep the data for the purpose of retransmission and cannot free its sending buffer. The invention proposes to repeat such an acknowledge message as a precaution for the case that it gets lost after a short time. The time for repeating is set to be less than an RTT (round trip time for the connection). The solution therefore disregards the fact that no statement about the reception of the acknowledge message can get back to the receiver before the RTT has elapsed. For wide area connections in high bandwidth networks, where high RTT values exist, this has the advantage that significant delays in carrying on sending data or unnecessary retransmissions of significant amount of data can be avoided.

Abstract translation: 本发明涉及一种用于在经由网络（5）发送网络元件（1）和一个接收网络部件（3）之间的数据连接传输数据，和一个网络部件（3）。 该方法解决了可靠的数据传输协议gemäß指很多数据传输报文，在固定的时间间隔进行确认的问题。 当试图确认消息丢失，发送网络组件必须保持数据重传的目的，并不能释放其发送缓冲区。 本发明提出重复寻求确认消息，作为预防措施的情况下这样做是得到一个很短的时间后消失。 用于重复时间设定为小于在RTT（往返时间的连接）。 该解决方案THEREFORE无视factthat没有关于确认消息的接收可以回去给接收器的RTT结束之前发言。 用于高带宽网络，其中高RTT值存在广域连接，这具有这样的优点并在执行上发送数据或数据的显著量的不必要的重传可避免显著延迟。

公开(公告)号：EP2075953A1

公开(公告)日：2009-07-01

申请号：EP07301712.1

申请日：2007-12-20

Applicant: Deutsche Thomson OHG

Inventor： Andreas, Matthias ,  Glaeser, Frank ,  Brocke, Jens ,  Kubsch, Stefan ,  Koehler. Ralf ,  Siemens, Eduard

IPC: H04L12/24 ,  H04L12/26 ,  H04L29/06

CPC classification number: H04L43/00

Abstract: The invention concerns a method of evaluating network performances with low impact on existing network traffic. Furthermore, the invention also relates to an apparatus for evaluating network performances. More particularly the invention concerns a method for evaluating network performance during normal operation of the network. The network comprises links connecting nodes, the link L jk connecting the two nodes N i , N k . According to the invention, the method has low impact on normal operation traffic in the network.

公开(公告)号：EP2040434A1

公开(公告)日：2009-03-25

申请号：EP07116777.9

申请日：2007-09-19

Applicant: Deutsche Thomson OHG

Inventor： Aust, Andreas ,  Siemens, Eduard ,  Gläser, Frank ,  Kubsch, Stefan ,  Köhler, Ralf ,  Brocke, Jens

IPC: H04L29/06

CPC classification number: H04L65/608 ,  H04L65/607

Abstract: In video production sites, video material is stored on video servers in digital form. High speed networks are available for transferring video content from the video servers to workstations for post-processing like video editing, colour management etc. Most networks and a lot of software for post-processing are available for exchanging data with Internet protocol. Extensions for the RTP protocol are available for transporting high definition video/audio data based on an Internet Protocol stack.
The invention enables the overall control of the data streaming by setting two incompatible flags (405, 406) in one and the same RTP packet without the need of a further extension of the RTP protocol. In one example the end of a data stream is signalled by setting the frame begin plus frame end flag (405, 406) in the packet transporting the last part of the last DPX frame in the stream.

Abstract translation: 在视频制作网站，视频资料的存储的视频服务器上以数字形式。高速网络可用于从视频服务器到工作站进行视频编辑，色彩管理等大多数网络和大量的软件后处理转移环的视频内容 后期处理都可以与互联网协议交换数据。 对于RTP协议扩展可用于在运输网络协议栈基于高清晰度视频/音频数据。 本发明使数据流的通过设置在一个两种不相容的标志（405，406）和相同的RTP分组而无需RTP协议的进一步扩展的整体控制。 在一个实施例的数据流的结束是通过在分组传输流中的负载DPX帧的负荷部分设置帧开始加帧结束标志（405，406）用信号通知。

公开(公告)号：EP2099177A1

公开(公告)日：2009-09-09

申请号：EP08102329.3

申请日：2008-03-06

Applicant: Deutsche Thomson OHG

Inventor： Aust, Andreas ,  Köhler, Ralf ,  Gläser, Frank ,  Kubsch, Stefan ,  Siemens, Eduard ,  Brocke, Jens

IPC: H04L12/56 ,  H04N7/68

CPC classification number: H04N19/89 ,  H04N21/6437

Abstract: The invention relates to a method for transferring data packets from a source entity (10) connected to a network into a destination entity (20) by a zero-copy mechanism over a data transfer connection, the method comprising steps of: sending, by the source entity (10), the data packets received from the network to the destination entity (20) over the data packet transfer connection, receiving the data packets by the storage entity (20), and storing the received data packets in a memory space of the destination entity (20) according to a data packet memory assignment (50), wherein for the received data packets a consistency of order check is performed for the received data packets, and the data packet memory assignment (50) is updated according to a data packet order update information indicating an inconsistency of order in the received data packets when the inconsistency of order is observed in the consistency of order check. The invention further relates to a computer network assembly, especially a video or film production computer network assembly, comprising a software-implemented order check module configured to perform the method. The invention also relates to an adapted network station.

Abstract translation: 本发明涉及一种用于通过数据传输连接通过零拷贝机制将数据分组从连接到网络的源实体（10）传送到目标实体（20）的方法，所述方法包括以下步骤： 源实体（10），通过数据分组传送连接从网络向目的实体（20）接收的数据分组，由存储实体（20）接收数据分组，并将接收的数据分组存储在 所述目的实体（20）根据数据分组存储器分配（50），其中对于所接收的数据分组，针对所接收的数据分组执行顺序校验的一致性，并且根据所述数据分组存储器分配（50）更新所述数据分组存储器分配（50） 当在顺序检查的一致性中观察到顺序不一致时，指示接收到的数据分组中的顺序不一致的数据分组顺序更新信息。 本发明还涉及一种计算机网络组件，特别是视频或电影制作计算机网络组件，其包括被配置为执行该方法的软件实现的顺序检查模块。 本发明还涉及适应的网络站。

公开(公告)号：EP2085855A1

公开(公告)日：2009-08-05

申请号：EP08101116.5

申请日：2008-01-30

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard ,  Gläser, Frank ,  Brocke, Jens ,  Kubsch, Stefan ,  Aust, Andreas ,  Köhler, Ralf

IPC: G06F1/14

CPC classification number: G06F1/14

Abstract: Modern computers (10, 20) come with different timers having different attributes like time resolution, supported time range and time reference. Some are local timers, representing relative time values like the TSC counter (11, 21) counting CPU cycles from the power on or reset of the computer. Some are global timers, representing an absolute or real time. Having different classes of timers in the computer (10, 20), a number of computations need to be performed to tie the different timers to each other.
It is the idea of the invention to define a single high resolution timer structure wherein the time value is represented with a digital number and a flag clarifies whether the timer is a global timer or local timer. The invention enables a much faster processing of the time values. The global time, tied to a high-resolution timer can be tracked much faster. This means better precision of scheduling of time critical jobs, like packet scheduling for data transport.

Abstract translation: 现代计算机（10,20）具有不同的定时器，具有不同的属性，如时间分辨率，支持的时间范围和时间参考。 有些是本地定时器，表示相对时间值，如TSC计数器（11,21）计算计算机开机或重置计算机的CPU周期。 一些是全球定时器，代表绝对或实时。 在计算机中有不同类别的计时器（10,20），需要执行许多计算来将不同的计时器彼此联系起来。 本发明的构思是定义一个单一的高分辨率定时器结构，其中时间值用数字数字表示，并且标志阐明定时器是全局定时器还是本地定时器。 本发明能够更快地处理时间值。 与高分辨率计时器相关的全球时间可以更快地跟踪。 这意味着时间关键型作业的调度精度更高，例如数据传输的数据包调度。

公开(公告)号：EP2045973A1

公开(公告)日：2009-04-08

申请号：EP07117776.0

申请日：2007-10-02

Applicant: Deutsche Thomson OHG

Inventor： Siemens, Eduard ,  Qiu, Xiaopeng

IPC: H04L12/56 ,  H04L1/18 ,  G06F5/12

CPC classification number: H04L1/1874 ,  G06F5/12 ,  G06F2205/062 ,  H04L1/1835 ,  H04L47/6245 ,  H04L49/90 ,  H04L49/901 ,  H04L49/9031 ,  H04L49/9047

Abstract: This invention relates to a design of an efficient buffer management model in order to increase the efficiency of data exchange between two process threads, - e.g. when implementing a network transport protocol stack.
This invention proposes to use an interconnected system of different kinds of memory buffers (100, 101, 102), implemented as asynchronous read/write ring buffers ARWRB. These buffers are organized in a way, in which data can be stored into the buffer or fetched from the buffer essentially avoiding synchronization means like mutexes or semaphores.
In contrast to the conventional buffer management model, three ring buffers, namely send ring buffer (100), send token ring buffer (101) and receive ring buffer (102), are used within the transport protocol stack.

Abstract translation: 本发明涉及一种高效的缓存器管理模型的设计，以增加两个处理线程之间的数据交换的效率 - E. G. 当实现一个网络传输协议栈。 本发明提出了作为异步读/写环形缓冲器ARWRB在不同种类的存储器缓冲器（100，101，102），来实现的互连的系统中使用。 这些缓冲器的方式，在该数据可被存储到从基本上避免同步缓存器中的缓冲或取出组织等手段或互斥信号量。 与此相反的常规缓冲器管理模式，三个环形缓冲器，即发送环形缓冲器（100），发送令牌环缓冲器（101）和接收环形缓冲区（102）的传送协议栈内被使用。