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media streams
相关语句
  媒体流
     The Synchronization Realization Technology in Dynamic Media Streams
     动态媒体流的同步实现技术
短句来源
     A GOP-Based Method for Clipping and Merging MPEG-2 Media Streams
     一种基于GOP的MPEG-2媒体流切割与合并方法
短句来源
     A GOP-Based Method for Clipping and Merging of MPEG-2 Media Streams
     一种基于GOP的HPEG-2媒体流切割与合并方法
     JMF(java media framework) is the extension of Java language,it especially works on the time-based media and real-time media streams.
     JMF(Java媒体框架)是Java语言的扩展,专门用来处理时基媒体数据和实时媒体流
短句来源
     and the former is more suitable to bursting symbol based information systems,such as IEEE802.11a,while the later can be used in broadcasting systems for continuous media streams,such as digital video broadcasting systems,digital audio broadcasting systems.
     前者适用于突发数据帧传输系统,如IEEE802.11a等,后者适合广播式连续媒体流传输系统,如数字音频、数字视频系统。
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  “media streams”译为未确定词的双语例句
     Experience indicates that I IPS remarkably reduces the waste rate of packet storage and provides fairly high performance for different MPEG1/2 media streams with various self similar features.
     实验证明 :对于自相似特性有显著差异的不同 MPEG1/ 2 (运动图像专家组 )节目 ,I- IPS算法均能有效降低存储浪费率 ,并获得较高的系统性能
短句来源
     This system can solve the problem that the embedding cryptography has to depend on the special devices, and can realize the security of media streams among terminals in IP network.
     这种透明的密码设备和多媒体终端间不存在协议交互,克服了内嵌式加密技术对特定设备的依赖性,从而可以实现不同组网中多厂商多产品下IP网中多媒体流的传输安全。
短句来源
     A model called TPP (task presentation path) for continuous media streams was proposed with focus on the whole qualities of presentation for continuous media stream.
     基于该任务模型,提出了一种以连续多媒体流的整个质量表现过程为中心的任务表现路径模型TPP(TaskPresentationPath) .
短句来源
     This paper introduces implementation of embedded remote monitor system based on MPEG4.The system uses ASIC chip to compress video and audio,and transfers media streams via Ethernet.
     介绍了一种基于MPEG4的嵌入式远程监控系统的设计方案。 该方案采用硬件ASIC对视频和音频数据进行压缩,通过以太网传输视频流和音频流。
短句来源
     The object of UMS is to break the barriers from different media streams and terminals to make people communicate anytime and anywhere with anyone.
     UMS的目标是:打破终端和媒介的壁垒,使用户可以在任何时间、任何地点使用不同的技术、媒介和终端与任何人进行通信。
短句来源
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  相似匹配句对
     Media
     媒体
短句来源
     MEDIA
     媒体话题
短句来源
     The Synchronization Realization Technology in Dynamic Media Streams
     动态媒体流的同步实现技术
短句来源
     and video codecs (H.261, H.263) that compress and decompress media streams.
     在协议分析基础上,给出H. 323体系IP电话的监控框架。
短句来源
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  media streams
This paper introduces an incentive mechanism to the CoopNet Network, which employs multiple distribution trees for the delivery of media streams, in order to address both problems.
      
We develop the corresponding system decomposition and distributed algorithms appropriate for rate adaptive media streams.
      
in the context of elastic traffic, to a service model for rate adaptive media streams.
      
Rate adaptive media streams bear similarities to both elastic (e.g., file transfer) and inelastic (e.g., voice) network traffic classes.
      
Distributed Algorithms for Rate-Adaptive Media Streams
      
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The guarantees of steady rate of continuous multimedia stream and synchronization among media streams are important problem in distributed multimedia system (DMS). The model of resource management is key issue to guarantee them in systems. This paper presents a model of session-based resource allocation and management. When resources are allocated, it can meet the resources required by steady continuous media stream by making equilibrium equation to allocate thread periods, I/O processors periods,...

The guarantees of steady rate of continuous multimedia stream and synchronization among media streams are important problem in distributed multimedia system (DMS). The model of resource management is key issue to guarantee them in systems. This paper presents a model of session-based resource allocation and management. When resources are allocated, it can meet the resources required by steady continuous media stream by making equilibrium equation to allocate thread periods, I/O processors periods, buffer space and network bandwidth for continuous media streams. The results show that periods of thread, I/O process and network process are functions about buffer space. When a session requests resources,system will decide whether it can be scheduled according to schedulability of CPU period, buffer space, I/O bandwidth and network bandwidth that are presented in this paper. When resource is managed, it can meet synchronization among media streams by adjusting their rates. On this scheme, the authors suggest an approach to real-time generation of session resource requirements, which resource overheadsis minimized. Finally, the experimental results in 100Mbps switching Ethernet are given.

分布式多媒体系统面临的最大挑战是支持稳定的连续媒体流和媒体流间同步.分布式多媒体资源管理模型是保证它们的关键.本文提出了一种基于节的资源分配和管理模型.在资源分配时,它通过建立连续媒体流的线程、I/O处理、缓冲区和网络处理的平衡方程,计算保证稳定的连续媒体流所必需的资源.在资源管理时,它通过调整媒体流的速率达到媒体流间同步.本文还提出了一种实时的节资源请求方案,它能使系统资源开销最小.最后给出了在交换式100Mbps快速以太同环境下的实验结果.

The guarantees of steady rate of multimedia streams is key issue in resource management of distributed multimedia systems. Many multimedia applications possess character of the criticality that describes the critical extent about media streams. The multimedia stream and its sequentially accessing resources, such as CPU, buffers, I/O and network bandwidth, have been defined. A session with criticality has four states i. e. waiting, running, preempted and closed. This paper presents a prototype...

The guarantees of steady rate of multimedia streams is key issue in resource management of distributed multimedia systems. Many multimedia applications possess character of the criticality that describes the critical extent about media streams. The multimedia stream and its sequentially accessing resources, such as CPU, buffers, I/O and network bandwidth, have been defined. A session with criticality has four states i. e. waiting, running, preempted and closed. This paper presents a prototype of resource management based on the session with criticality including the mechanism of resource management, the strategy of resource management, the algorithm of QoS negotiation and adaptation, and the algorithm of session preemption with high criticality. The prototype can meet steady rate of multimedia streams with criticality. It can maximize not only the total number of concurrent multimedia streams, but also the number of high-criticality multimedia streams scheduled and the QoS of all multimedia streams. System resource manager (SRM)manages a waiting queue of sessions with criticality order. In the prototype, the resource manager will adjust QoS including QoS shrink and QoS extension of all sessions and preempts other sessions when a new session requires resource to schedule high criticality session as possible. Finally, this paper compares performance overhead and effect of session preemption algorithms in client/server model and Windows95/Windows NT environment and shows that the algorithm B is a available algorithm for real-time multimedia systems.

本文研究了具有优先级特征的分布式多媒体流的资源管理,提出了一种基于节优先级的资源管理的设计方法,包括资源管理机制、资源管理策略、服务质量(QoS)协商调整算法和高优先级节抢占算法.它能够保证稳定的具有优先级特征的多媒体流,能够极大地调度并发的多媒体流,特别是在系统资源不足时,能够最大限度地调度高优先级的多媒体流,并能保证各多媒体流最好的QoS.

Continuous media service is a new kind of real time applications. It requires that hard and soft real time tasks should be supported in an integrated operating system framework. But the scheduling policies in traditional OS(e.g., UNIX or Windows NT)can't support this application to the best. This paper proposes a new QoS method, based on which a QoS based heuristic task scheduling algorithm supporting continuous media streams is described. The algorithm takes into account the success ratio and consecutive...

Continuous media service is a new kind of real time applications. It requires that hard and soft real time tasks should be supported in an integrated operating system framework. But the scheduling policies in traditional OS(e.g., UNIX or Windows NT)can't support this application to the best. This paper proposes a new QoS method, based on which a QoS based heuristic task scheduling algorithm supporting continuous media streams is described. The algorithm takes into account the success ratio and consecutive fail count of multimedia tasks in order to guarantee the quality of all media streams. Finally, simulation and comparison are performed to validate the effectiveness of this algorithm.

连续媒体服务如视频、音频等是一类新的实时应用,要求在一统一的操作系统框架内支持强、弱实时应用(任务),而传统的操作系统(如UNIX或者WindowsNT)中的调度策略不能很好的支持该类应用.文中提出了一种新的QoS描述方法,并在此基础上提出支持连续媒体流的、基于QoS的启发式任务调度算法,该算法综合考虑了多媒体任务的成功率和连续失败数,在资源有限的前提下,尽量保证所有媒体流的服务质量.文中通过模拟、比较对该算法进行了评价.

 
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