标签: huffman

MATLAB霍夫曼Huffman编码译码GUI界面设计源程序代码

MATLAB霍夫曼Huffman编码译码GUI界面设计源程序代码.rar

Datatransmissionandstoragecostmoney.Themoreinformationbeingdealtwith,themoreitcosts.Inspiteofthis,mostdigitaldataarenotstoredinthemostcompactform.Rather,theyarestoredinwhateverwaymakesthemeasiesttouse,suchas:ASCIItextfromwordprocessors,binarycodethatcanbeexecutedonacomputer,individualsamplesfromadataacquisitionsystem,etc.Typically,theseeasy-to-useencodingmethodsrequiredatafilesabouttwiceaslargeasactuallyneededtorepresenttheinformation.Datacompressionisthegeneraltermforthevariousalgorithmsandprogramsdevelopedtoaddressthisproblem.Acompressionprogramisusedtoconvertdatafromaneasy-to-useformattooneoptimizedforcompactness.Likewise,anuncompressionprogramreturnstheinformationtoitsoriginalform.Weexaminefivetechniquesfordatacompressioninthischapter.Thefirstthreearesimpleencodingtechniques,called:runlength,Huffman,anddeltaencoding.Thelasttwoareelaborateproceduresthathaveestablishedthemselvesasindustrystandards:LZWandJPEG.CHAPTERDataCompression27Datatransmissionandstoragecostmoney.Themoreinformationbeingdealtwith,themoreitcosts.Inspiteofthis,mostdigitaldataarenotstoredinthemostcompactform.Rather,theyarestoredinwhateverwaymakesthemeasiesttouse,suchas:ASCIItextfromwordprocessors,binarycodethatcanbeexecutedonacomputer,individualsamplesfromadataacquisitionsystem,etc.Typically,theseeasy-to-useencodingmethodsrequiredatafilesabouttwiceaslargeasactuallyneededtorepresenttheinformation.Datacompressionisthegeneraltermforthevariousalgorithmsandprogramsdevelopedtoaddressthisproblem.Acompressionprogramisusedtoconvertdatafromaneasy-to-useformattooneoptimized……

异步时序电路异步时序电路的分析与设计刘勇攀提纲背景介绍基本概念Huffman电路其它类型异步电路的简介展望与结论现状与趋向异步电路的研究开始于50年代中期目前主要应用于外围设备(接口等)将异步电路结构应用到VLSI推出了实用异步电路芯片(80C51)同步时序电路的一般结构InputOutputCombinationallogicCurrentstateNextstateRegistersClock异步时序电路的一般结构（1）InputOutputCombinationallogicCurrentstateNextstateDelayElementsFundamental-modecircuitmodel……