1、 IEC 62216Edition 1.0 2009-05INTERNATIONAL STANDARD Digital terrestrial television receivers for the DVB-T system IEC 62216:2009(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 I
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9、 INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.IEC 62216Edition 1.0 2009-05INTERNATIONAL STANDARD Digital terrestrial television receivers for the DVB-T system INTERNATIONAL ELECTROTECHNICAL COMMISSION XFICS 33.160.25 PRICE CODEISBN 2-8318-1044-1 Registered trademark of the Inter
10、national Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62216 IEC:2009(E)CONTENTS FOREWORD.8 INTRODUCTION.10 1 Scope and object.11 2 Normative references.11 3 Abbreviations and symbols.13 4 Receiver capab
11、ilities.15 4.1 Frequency spectrum.15 4.2 Conditional access.15 4.3 Return path.15 4.4 EPG(SI).15 4.5 Auto installation.16 4.6 Teletext carried in digital streams.16 4.7 Content protection/copy management.16 4.8 Services.16 4.9 API.16 4.10 Over-air software update.16 4.11 Audio and video codecs.16 4.
12、12 Future versions of this standard.17 5 Video system characteristics.17 5.1 General.17 5.2 Essential requirements.17 5.2.1 Standard services.17 5.2.2 Advanced services.17 5.3 Constraints and extensions.17 5.3.1 Support for rapid channel acquisition.17 5.3.2 Picture types.18 5.3.3 Compatibility.18 5
13、.3.4 User data.19 5.3.5 Video alignment.19 5.3.6 Chroma sampling location.20 6 Video display formatting.21 6.1 General.21 6.2 Video format.21 6.2.1 General.21 6.2.2 Requirements for DVB compliance.21 6.3 Recommendations for signalling in the video stream.22 6.3.1 Sequence header.22 6.3.2 Sequence di
14、splay extension.22 6.3.3 Constraints on the use of the picture display extension.23 6.3.4 Format switching.23 6.4 Video format signalling extensions.24 6.4.1 General.24 6.4.2 MPEG signalling.24 6.4.3 DVB signalling.24 6.4.4 Active format description.24 6.5 Recommendations for ISO/IEC 13818-1 signall
15、ing.32 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62216 IEC:2009(E)3 6.6 Alignment of SD video and graphics.32 6.6.1 Video with graphics.32 6.6.2 Uncertainty of position of graphics over video.32 6.7 Alignment of HD video and grap
16、hics.33 7 Audio system characteristics.33 7.1 General.33 7.2 Essential requirements.33 7.2.1 Requirements.34 7.2.2 Synchronisation.34 7.2.3 Audio metadata.34 7.2.4 Decoding requirements.34 7.3 Constraints and extensions.35 7.3.1 Digitally coded.35 7.3.2 Surround sound.35 7.3.3 AC-3 and Enhanced AC-3 audio.35 7.3.4 ISO/IEC 14496-3 audio.36 7.3.5 Receiver downmix.36 7.3.6 Digital audio output.36 7.4 Audio description.36 7.4.1 Background.36 7.4.2 Receiver implementation minima.37 7.4.3 Receiver mix
