数字录像机的分类和特点  

The primary models and characteristics of digital video

作　　者：姜河[1] 

机构地区：[1]河南广播电视大学,河南郑州450003

出　　处：《河南广播电视大学学报》2002年第4期40-42,共3页Journal of Henan Radio & TV University

摘　　要：It is a great trend to develop digital format of the television broadcasti ng technology.So digital tech-nology and equipments are more and mo re adopted in the process of making th e television programs.Now,three com-pressed form ats,including MPEG-2?M-JPEG and DV are extensively applie d in the field o f television.The followings are the digital video recorders whic h adopt the co de rate compressed tech nology:Sony(DIGITAL BETACAM?BETA-CAMSX?DVCAM?MPEGI MX),Panasonic(DVCPRO?DDVCPRO50)and JVC(D-9).In this article,it det ailedly in-troduces the different characteris tics of the above-mentioned dig ital video recorders and the primary models of digital equments in the market to help us to un derstand and purchase the digital video recorders.It is a great trend to develop digital format of the television broadcasti ng technology.So digital tech-nology and equipments are more and mo re adopted in the process of making th e television programs.Now,three com-pressed form ats,including MPEG-2?M-JPEG and DV are extensively applie d in the field o f television.The followings are the digital video recorders whic h adopt the co de rate compressed tech nology:Sony(DIGITAL BETACAM?BETA-CAMSX?DVCAM?MPEGI MX),Panasonic(DVCPRO?DDVCPRO50)and JVC(D-9).In this article,it det ailedly in-troduces the different characteris tics of the above-mentioned dig ital video recorders and the primary models of digital equments in the market to help us to un derstand and purchase the digital video recorders.

关 键 词：广播电视 数字录象机 视频压缩 SONY JVC 松下 

分 类 号：TN946[电子电信—信号与信息处理]