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1 前言 举世属目的美国数字广播,尤其是地面数字电视HDTV和DTV 3年来普及不快的局面,一直受到各国广播业界的关注。为了打破数字广播进展不畅的状况,美国联邦通信委员会(FCC)于2002年下定决心采取积极措施,从给电视机加装数字电视用调谐器入手,改变DTV、HDTV电视普及不利的局面。其推进计划的日程如表1所示。
1 INTRODUCTION The purpose of the world The digital broadcasting in the United States, especially the terrestrial digital television (HDTV) and DTV’s popularization of unhealthy situation in the past three years, has always been the concern of the broadcasting industry in various countries. In order to break the sluggish state of digital broadcasting, the Federal Communications Commission (FCC) decided in 2002 to take positive measures, starting with the installation of digital TV tuners for TVs and changing the unfavorable situation of DTV and HDTV TVs. The schedule of its promotion plan is shown in Table 1.