[技术文章]电视传输标准测试！你所不知的电视认证与测试过程 [复制链接]

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<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">目前全球数字电视传输方式分为<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">三大类：<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">卫星传输、<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">有线传输及<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">地面无线传输。在这三大类别里也发展了三种相对成熟的<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">数字电视标准，其中包含了<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight: normal">美国先进电视制式委员会的标准（<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="mso-bidi-font-size:12.0pt;font-family:" mso-fareast-language:zh-cn?="" microsoft="" ms?;color:black;mso-themecolor:text1;="" unicode="" mso-bidi-font-family:?arial="" jhenghei?,?sans-serif?;="">ATSC<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size:12.0pt; font-family:" mso-fareast-language:zh-cn?="" microsoft="" jhenghei?,?sans-serif?;color:black;mso-themecolor:text1;="">）<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size:12.0pt; font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">、<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">日本的综合业务数字广播标准（<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="color:black;mso-themecolor:text1">ISDB）、以及<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight: normal">欧洲地区数字电视联盟的数字视频广播标准（<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="color:black;mso-themecolor:text1">DVB）。<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-weight:normal">而我国的广播科学研究院除了加入<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="">DVB外，也有参加<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="">ATSC组织，继而衍生出符合国内的<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="">DTMB标准规范。<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="text-align: center;">

<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">注<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">1<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">：世界四大数字电视标准分布图<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="font-size: 9pt;"><div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">
<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">由于全球各区针对上述的数字电视标准制定了严格规范，例如东南亚的马拉西亚、越南，制定了对外国品牌数字电视的国家级认证标准。而在欧洲地区，则是由系统运营商制定DVB标准规范，以确保<b style="margin: 0px; padding: 0px; font-weight: 700; word-wrap: break-word; box-sizing: border-box;" .="">电视和系统间的相容性。例如，使用卫星传输的有意大利Tivusat、捷克Skylink，使用有线传输有德国第一大UnityMedia，而使用地面无线传输则有英国运营商FreeView、挪威RiksTV等。<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">
<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">因此，当某品牌数字电视业者欲在欧洲市场推出新机种时，除了必须通过欧洲安规认证之外，还需通过不同国家与地区运营商的<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="">DVB标准规范，以确保数字电视与系统规范的可兼容性，并正常接收讯号来播放节目。<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="text-align: center;">

<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">注<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">2<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">：欧洲运营商数字电视传输标准图示<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="font-size: 9pt;"><div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="font-family: " microsoft="" sans-serif;?="" jhenghei?,="">
<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">整个欧洲包含了数十个系统运营商。除了从联系、到测试安排就需耗费相当大的时间与精力，还需要考虑到语言隔阂造成的困难。因此，百佳泰投入了大量的时间与人力，研究欧洲地区数字电视传输标准，并历经多样的测试突发状况，进而研发出高效率的预测试服务（pre-test）。厂商不仅能顺利通过申请欧洲地区的数字电视传输标准，也能节省测试时所需消耗的大量时间。<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">
<div style='margin: 0px 0px 10px; padding: 0px; text-align: justify; color: rgb(100, 100, 100); text-transform: none; text-indent: 0px; letter-spacing: normal; font-family: myFont, "Microsoft YaHei"; font-size: 16px; font-style: normal; font-weight: normal; word-spacing: 0px; white-space: normal; word-wrap: break-word; box-sizing: border-box; orphans: 2; widows: 2; background-color: rgb(255, 255, 255); font-variant-ligatures: normal; font-variant-caps: normal; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;' .="MsoNormalCxSpFirst"><span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" .="mso-bidi-font-size: 12.0pt;font-family:" jhenghei?,?sans-serif?;mso-fareast-language:zh-cn?="" microsoft="">而在东南亚方面，作为DVB成员之一的马来西亚通信及多媒体委员会（MCMC）自2015年颁布了数字电视型式认证（Type Approval）并委托马来西亚工业标准研究院（<span style="margin: 0px; padding: 0px; word-wrap: break-word; box-sizing: border-box;" lang="EN-US" .="">SIRIM）监督所有销往大马的数字电视需通过《地面数字电视广播接收机规范》（SKMM MTSFB TC T004）。