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- Alot of noises accumulate on the upstream channel in HFC (Hybrid Fiber-Coax)system ,which caused the difficulty in bi directional operations, Therefore,suppressing them is very difficult. HFC上行通路汇集了大量的各类噪声 ,严重影响着其双向业务的开通 ,如何对这些噪声进行抑制是个难题。
- Bi directional and mono directional Glenn operations in 10 cases were reported. 报道 10例单向与双向 Glenn手术。
- The MAC protocol for HFC network based on TDMA/FDMA is studied thoroughly. 深入研究了基于TDMA/FDMA的HFC网络MAC技术。
- Transmission of VBR video stream on the HFC network is discussedin th is paper. 本文讨论了基于HFC网络的变比特率(VBR)视频流的传输问题,提出了一种在共享信道上的协作型传输方案;
- The essential principle and implementation of the bi directional detector for Fuel Handling System (FHS) in 10MW High Temperature gas cooled Reactor (HTR 10) are presented. 介绍了10MW高温气冷堆燃料元件装卸系统双向探测器的基本原理和实现方法。
- The advent of HFC network infrastructure established the bidirectional basis of CATV network. HFC网络结构的出现为CATV网络的双向通信提供了实现基础.
- A new power integrated light activated MOS controlled multiway switch is described,which consists of bi directional thyristors,MOS and photoelectric devices. 介绍了一种新型功率集成光激MOS控制多路开关,它由双向晶闸管、MOS器件、光电器件组成。
- The system based on the HFC network and DVB-C standard. It can support TVOD services and NVOD services simultaneously. 结合当前地方有线电视网络的实际情况,提出一套以现有HFC网为基础,同时支持TVOD和NVOD,基于DVB-C的数字电视城域VOD系统设计方案,以提供高性能、低成本的城域VOD业务。
- Through the proposed traffic policy, the hierarchical HFC network offers guaranteed QoS for the users. 所以,导入区段观念与桥接功能可使得频宽被有效的重新使用,并提高系统的效能。
- An all-digital burst mode DS-CDMA-QPSK receiver scheme is proposed for HFC network application. 本文提出了一套切实可行的突发模式DS-CDMA-QPSK全数字接收机方案,可应用于HFC网络多接入系统中。
- The Head-end modulator is the key equipment for data transmission applied in HFC network. 摘要前端调制器是HFC网络实现数据传输的关键设备。
- This paper introduces structure,character,main design and method of adjustment of CATV two-way HFC network. 系统介绍有线电视双向HFC网络的结构、特点、设计要点与调整方法。
- Our company is specialized in cable HFC network equipment to engage in R &D, production, marketing enterprises. 本公司是一家专业从事有线HFC网络器材研发、生产、销售的企业。
- Abstract: In the HFC network, the funnelling effect of noise is the main restrict matter of raising the rate in the up stream channel. 摘 要: HFC网络中上行信道的漏斗噪声是制约上行信道提高传输速率的主要原因。
- Abstract: This paper introduces some concrete requirements for and procedures of the transformation and upgrade of HFC network. 文摘:文章介绍了HFC网络改造升级的一些具体要求及步骤。
- In the HFC network, the funnelling effect of noise is the main restrict matter of raising the rate in the up stream channel. HFC网络中上行信道的漏斗噪声是制约上行信道提高传输速率的主要原因。
- T Bank in a variety of changes, halfway to pause for the "Dayton", backward net for the "setback", Duncuo time to adjust Bi direction, not to appear side-feng. 行笔中有各种变化,中途转向稍停为“顿”,向后折回为“挫”,顿挫时要调整笔锋方向,不使出现侧锋。
- By creatively introducing SNMP into the HFC Network Management, it brings forth new ideas on access network management based on CMIP. 在HFC网络管理中引入SNMP,是本文的创新和先进之处。 它为现存大型的、多设备的HFC网络的全面管理提出了一种较完善的解决方案;
- Applications that have this transmission environment include ADSL and VDSL over the twisted pairs and cable modem transmission over the HFC network. 这些结果可用于传输通道变化缓慢的宽频通讯应用上,包括利用电话线作传输的ADSL和VDSL及利用HFC网路作传输的缆线数据机。
- CMTS system is one of the key devices in HFC network,it can make CATV users access broad-band network and enjoy the interactive integrated service. CMTS系统是HFC网络中的关键设备之一,它能够使有线电视用户实现宽带接入并享受交互式综合业务服务。
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