IEC_62071-3-2005.pdf

INTERNATIONAL STANDARD IEC62071-3 First edition2005-10 Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape Format D-7 Part 3:Data stream format Reference number IEC 62071-3:2005(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.Publication numbering As from 1 January 1997 all IEC publications are issued with a designation in the 60000 series.For example,IEC 34-1 is now referred to as IEC 60034-1.Consolidated editions The IEC is now publishing consolidated versions of its publications.For example,edition numbers 1.0,1.1 and 1.2 refer,respectively,to the base publication,the base publication incorporating amendment 1 and the base publication incorporating amendments 1 and 2.Further information on IEC publications The technical content of IEC publications is kept under constant review by the IEC,thus ensuring that the content reflects current technology.Information relating to this publication,including its validity,is available in the IEC Catalogue of publications(see below)in addition to new editions,amendments and corrigenda.Information on the subjects under consideration and work in progress undertaken by the technical committee which has prepared this publication,as well as the list of publications issued,is also available from the following:IEC Web Site(www.iec.ch)Catalogue of IEC publications The on-line catalogue on the IEC web site(www.iec.ch/searchpub)enables you to search by a variety of criteria including text searches,technical committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also available by email.Please contact the Customer Service Centre(see below)for further information.Customer Service Centre If you have any questions regarding this publication or need further assistance,please contact the Customer Service Centre:Email:custserviec.ch Tel:+41 22 919 02 11 Fax:+41 22 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC62071-3 First edition2005-10 Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape Format D-7 Part 3:Data stream format IEC 2005 Copyright-all rights reserved No part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from the publisher.International Electrotechnical Commission,3,rue de Varemb,PO Box 131,CH-1211 Geneva 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch T For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 62071-3 IEC:2005(E)CONTENTS 1 Scope.5 2 Normative references.5 3 Abbreviations and acronyms.5 4 Identification within the serial data transport interface(SDTI).6 4.1 SDTI header packet data.6 4.2 Payload.6 5 Stream block format.6 5.1 Reserved data words.7 5.2 Signal type words.7 5.3 Transmission type word.9 5.4 DIF block ID words.10 5.5 DIF block data words.10 5.6 Error correction code(ECC)words.10 6 Transmission order.11 7 Mapping structure.14 7.1 Channel unit.14 7.2 Mapping rules.14 Annex A(informative)Block diagram of D-7 recorder.23 Figure 1 Stream block format.7 Figure 2 Signal type(ST)word mapping.7 Figure 3 Transmission type(TT)word mapping.9 Figure 4 Mapping of DIF block ID.10 Figure 5 Mapping of ECC.11 Figure 6 Transmission order in one frame for the 50 Mb/s structure.12 Figure 7 Transmission order in one frame for the 25 Mb/s structure.12 Figure 8 Transmission order in a DIF sequence.13 Figure 9 Channel unit mapping for the 25 Mb/s structure(525/60 SDTI system).16 Figure 10 Channel unit mapping for the 25 Mb/s structure(625/50 SDTI system).17 Figure 11 Channel unit mapping in a synchronized multichannel units transmission (525/60 SDTI system).19 Figure 12 Channel unit mapping in a synchronized multichannel units transmission (625/50 SDTI system).20 Figure 13 Channel unit mapping for the 50 Mb/s structure(525/60 SDTI system).21 Figure 14 Channel unit mapping for the 50 Mb/s structure(625/50 SDTI system).22 Figure A.1 Block diagram of D-7 recorder.23 Table 1 Start lines of channel units.18 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62071-3 IEC:2005(E)3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM USING 6,35 mm MAGNETIC TAPE FORMAT D-7 Part 3:Data stream format FOREWORD 1)The International Electrotechnical Commission(IEC)is a worldwide organization for standa