查询词典 CATV

ABSTRACT Over the last few years much attention has been paid to the development of the technologies for Community Antenna Television networks. New technologies that can be used to support data communication service over CATV networks are developed. The new Hybrid Fiber Coaxial technology is spreading out rapidly in CATV networks. The usage of fiber provides large bandwidth and thus enables some new services to be delivered along with television broadcast. The CATV networks are expected to support diverse traffic with various service requirements.

随着新技术的不断发展，人们希望能够利用有线电视网络提供新的业务，HFC技术在有线电视网络中的广泛使用使得有线电视网络的带宽增加，也使得有线电视网络除电视广播外还能够提供其他的服务，这些服务的服务质量要求各不相同，如：数据服务要求低的丢失率，对延时的要求较低；而语音服务可容忍一定的丢失，但对延时、延时抖动有严格的要求，因此需要开发新的协议。

The interactive multi- media CATV network is the tendency of the development .The implementations perspect of the CATV network of are very optimistic when their allocation and exchangeability are conbined.

交互多媒体有线电视网是CATV发展的趋势，分配功能和交换功能的结合使有线电视网的应用前景甚为乐观。

With the development of DTV and the CATV new business, SDH technology was used more and more widely in CATV network.

随着广播电视的全面数字化和有线新业务的发展， SDH技术被广泛应用于广电网络。

In Broad Band ,Curcuit signal graphics is achieved by oscillograph ,and packet loss rate , throughput, Latency , back-to-back and so on.;In VoIP, the device can communicate with FXO 3804 of TAIWAN Welltech and DT60 of BEIJING JIAXUN FEIHONG, At that time, Ethereal and PalmTool of PA1688 testing are introduced; In CATV, flatness ,signal graphics of radio frequency are tested by CATV stroboscope.

使用示波器测试数据部分的电路信号波形，使用网络分析仪测试丢包率、吞吐量、时延和背压等以太网指标的测试，并记录最终测试结果；电话部分主要是与台湾伟桥的FXO 3804和北京佳讯飞鸿的E1数字中继网关DT60，实现基于H.323协议的VoIP电话通信，同时介绍使用Ethereal软件和PA1688专用测试工具PalmTool的测试分析情况；电视部分主要是使用CATV频谱仪测试输出射频信号的平坦度、信号波形等分析信号质量，并通过实际电视接收观察输出的射频信号质量。

Based on the system study of CATV integrated service headend system, design and realize the first CATV Integrated Service Information Net of China. The main content of this article include: The second chapter is Combined to the demand of the system and analyzed some schedule model, a real-time schedule arithmetic base on memory is proposed.

本文主要内容包括：第二章深入研究了综合业务信息网用户请求的分布规律，建立了用户请求的数学模型，推导了用户请求分布的一般表达式，在此基础上，提出了基于动态优先级调整的资源均衡调度算法，有效地实现了大用户量的并发用户请求处理以及中心系统资源的实时优化调度策略。

This paper introduces a Video on Demand system based on both CATV broadcasting channels and IP interactive network. CATV broadcasting channels are used for content transmission and IP network is used for control information transmission between Set Top Box and Headend Server.

介绍了一种利用有线数字电视广播信道和支持IP交互信道的视频点播系统，广播信道用来传输点播的节目，交互信道传输机顶盒和前端服务器的控制信息，视频点播的各种控制基于DSM-CC协议实现。

Major producers of microwave, cable TV signal descrambling devices, cable descrambling devices addressable scrambling system cluster solution additive group, group plus a single solution,, CATV cable IC card authorization group scrambling system plus a single solution, single-plus single - solution, single-plus group solutions, multi-phase sequence control.

主要生产微波、有线电视信号解扰器，有线电视解扰器可寻址加扰系统群加群解，群加单解，，CATV有线电视IC卡授权加扰系统群加单解，单加单解，单加群解，多相位序列控制。

As one of the information industry platforms CATV has colossal network architecture in China.

我国的有线电视网作为信息产业的基础平台之一，有着庞大的网络体系。

The chosen operators are from the 112 "CATV" operators recorded in the second meeting on the third year of Association of Community Antenna TV.

在方法上，本文经由文献资料与口述访谈的方式，进行台湾主要社区共同天线系统业者的考察。

The company leverages its leading-edge compound semiconductor materials and device expertise and provides cost-effective components and subsystems for the CATV, telecom, data and storage, satellite and wireless communications markets.

公司下属的四个事业部分别从事数据和模拟光纤通讯模块和元器件，卫星通信系统，空间用高效率太阳能电池，及民用地面太阳能电池系统。2006年全年销售额超过一亿六千万美元。

Molecular Distillation is a kind of high vacuum distillation method, which is suitable for the separation of high boiling, heat sensitivity and viscidity products.

分子蒸馏技术是一种在高真空条件下进行的连续蒸馏过程，适合于分离高沸点、热敏性及具有生物活性的混合物。

They are to the Noughties what yuppies were to the Eighties .

那在六十年代是时髦的，但在八十年代肯定是过时了