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中国网络电视标准仍在制定中
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<table width='760' border='0' cellspacing='0' cellpadding='0'> <tr> <td align='center' class='txt18' height='50'>中国网络电视标准仍在制定中</td> </tr> <tr> <td align='center' bgcolor='#000000'><img src='http://imgs.xinhuanet.com/icon/xilan/blank.gif' width='1' height='1'></td> </tr> <tr> <td align='center'><img src='http://imgs.xinhuanet.com/icon/xilan/blank.gif' width='1' height='2'></td> </tr> <tr bgcolor='#003483'> <td align='center' class='wht12' height='20'>www.XINHUANET.com 2006年03月10日 08:12:34 来源：新华网</td> </tr> </table>
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<P> 新华网北京３月９日电（记者赵晓辉）代表家庭娱乐未来发展方向的网络电视因其巨大的市场而备受关注。信息产业部电信研究院总工程师蒋林涛９日透露，中国网络电视的技术标准仍在制定当中，有几个方面必须考虑清楚。
<P> “首先要清楚网络电视的业务类型和网络支撑，”蒋林涛在由中国计算机报社主办的第二届中国<!--ADV_CONTENT-->宽带视频大会上说。
<P> 网络电视即ＩＰＴＶ，指通过电信网络传输视音频内容用电视机收看的业务。蒋林涛说，未来的网络电视从网络传输方式来划分，可以分为广播类和交互类两大类业务，包括现有的直播电视，可在节目播放４８小时内选择的时移电视，点播类付费电视，循环播放电视和网上浏览等五大类。
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