查询词典 digital coding

In the area of digital coding model and the method proposed on the basis of an IP-based communication protocol addressability.

在上述数码小区模型及编码的方法的基础上，提出一种基于IP的寻址通讯协议。

Analog channel ; digital coding ; fault detection

模拟信道；数字编码；故障检测

Cyclic Redundancy check code is recommended by International Telecommunications Organization , used in the digital communication system error control coding way (given several coding generator polynomial), they have been widely used by the people in the digital communication system.

循环冗余检错编码是国际通信组织推荐的用于数字通信系统的差错控制编码方式（给出了几种编码的生成多项式），已被人们在数字通信系统中广泛地使用。

We design a project for digital-coding emission and realize it by technology of FPGA on one circuit board of the fore-end part of BMUS.

该方案实现了脉冲回波法B超前端的部分数字化，符合目前B超界数字化、电脑化的趋势，有一定的创新。

This paper consists of six chapters,as listed below: Chpt I, isagoge:introduces digital coding technology in Audio/Visual fields, of its significance in application and its development...

全文分为六章，具体安排如下：第一章绪论：介绍了数字编码技术，分析了国内外研究现状及论文研究的现实意义。

The coding method includes the steps of representing respective digital data by digits of a predetermined same number, and coding the digital data represented by digits of the same number by a predetermined coding method from the uppermost significant digit sequence to the least significant digit sequence.

编码方法包括以下步骤：用相同的预定位数表示有关数字数据，以及使用预定编码方法自最高有效位序列至最低有效位序列将由相同位数表示的数字数据编码。

Speech coding is one of the basic and most important components in digital communication networks. 2. 4kb/s and even lower bit-rate speech coding is always one of the most important research topics in the area of speech coding.

数字语音的编码传输是整个数字化通信网中最重要、最基本的组成部分之一。2.4kb/s甚至更低速率的语音编码技术一直是语音编码中重要的研究课题。

In order to realize the compatible communications system between digital TETRA and analogy MPT1327. Communications protocol between digital radio and control center is defined. Emergency call software flow for TETRA and MPT module is designed, and also state information sending and receiving for TETRA and MPT module is designed in this communication system. By comparing several solutions, switch methods between analogy TETRA communications and digital TETRA communications are designed including manual-switch and soft-switch. In the article, coding module of receiving and sending equipments in TATT analogy TETRA communications is described, so that it can be compatible with NOKIA network equipments and it also can improve the availability rate of the trunk system. In order to realize the integration of digital TETRA communication and analogy MPT1327 communications, double- frequency antenna system is researched.

通过几种车载电台解决方案比较，设计了相应的模拟集群通信系统与数字集群通信系统的切换方法，其中包括人工切换和软切换，实现了模拟与数字集群兼容的一体化移动列车调度电台解决方案；为了实现数字集群通信系统与模拟集群通信系统以及NOKIA与TAIT模拟集群通信系统之间的相互兼容，设计了新的数字车载电台与控制中心之间的通信协议；系统设计了用于数字集群通信模块的紧急呼叫通讯流程，以及设计了用于模拟集群通信模块状态信息发送与接收流程，以满足列车无线调度的运营要求；论文还论述了对TAIT模拟集群收发设备编码模块的改造，使之能与NOKIA的集群设备相兼容，提高了集群设备的利用率，为在NOKIA模拟集群通讯模块停产后寻找了一种可替代的兼容解决方案；为了实现数字集群通信系统与模拟集群通信系统设备的综合，论文还探讨了本工作所需专用的双频段的天线系统。

The invention discloses a digital good transaction system and the method. It mainly carries on coding process to at least one digital good in a content downloading center into a coded digital good, and the coded digital good will be transmitted to at least one content downloading station with real memory transmission path, when the consumer selects a digital good, the user can uses a content downloading card into a content downloading station, uses a reality transmission path to store the digital good to be purchased, and uses a network transmission wire to connect the content downloading center, the center incriminates the card number in order to generate a card number decoding data, and download the decoding data into a content downloading card, when the consumer want toe buy a digital good, the content can be downloaded into a content card reader, and the reader incriminate the card number to reduces the decoded data and the digital good, in order to generate the digital good which can be read and used.

本发明公开了一种数字商品交易系统及其交易方法，其主要是将至少一数字商品在一内容下载中心进行加密处理以成为一加密数字商品，而加密数字商品将以实际的储存器传递线路以直接送到至少一内容下载点中，当消费者选定一欲购买数字商品时，可持一内容下载卡至其中一内容下载点，利用一实体传输线路直接储存所欲购买的加密数字商品，并藉由一网络传输线路以连接内容下载中心，内容下载中心将根据卡号识别码以产生一卡号解密资料，并将卡号解密资料下载至内容下载卡，当消费者欲使用欲购买数字商品时，即可将内容下载卡置入一内容卡片阅读机中，而内容卡片阅读机将根据卡号识别码以还原卡号解密资料及加密数字商品，以产生可供读取使用的数字商品。

The paper probe into the realization of digital-coding emission of B-mode Ultrasound Scanner . The work is based on in-deep study about theory of BMUS and circuit theory.

本文对B超仪数字编码发射进行了探索性研究，在深入研究B超理论基础、电路原理的前提下，结合目前广泛应用的FPGA技术，设计了数字编码发射系统方案，并整合到了B超前端电路板上。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。