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<p><span lang="EN-US" style="FONT-SIZE: 14pt; FONT-FAMILY: 'times New="New" Roman'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><font face="Verdana">ATSC Standard:AVC Video Transport Subsystem Characteristics<br/></font></span></p>
<p><span lang="EN-US" style="FONT-SIZE: 14pt; FONT-FAMILY: 'Times New="New" Roman'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><font face="Verdana"><font face="Verdana">In issuing this standard, the ATSC recognizes that it includes encoding and decoding techniques<br/>for digital television transmission which are not backwards compatible with existing MPEG-2-<br/>based ATSC DTV deployments. Transitional issues associated with continuing service to existing<br/>receivers, how and when to deploy advanced-capability receivers, allocation of channel bit<br/>capacity, and related issues should be considered. ATSC recognizes that this standard will be<br/>utilized more readily in countries that have not yet implemented digital terrestrial television<br/>broadcasting systems, or in countries that have achieved internal agreement on a transition plan.<br/>The revision history of this document is given below.</font></p></font></span><br/> 
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