IEC_62141-2005.pdf

INTERNATIONAL STANDARD IEC62141 First edition2005-10 Helical-scan digital video cassette recording format using 12,65 mm magnetic tape and incorporating MPEG-4 compression Type D-16 format Reference number IEC 62141:2005(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committees and date of publication.On-line information is also available on recently issued publications,withdrawn and replaced publications,as well as corrigenda.IEC Just Published This summary of recently issued publications(www.iec.ch/online_news/justpub)is also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 IEC62141 First edition2005-10 Helical-scan digital video cassette recording format using 12,65 mm magnetic tape and incorporating MPEG-4 compression Type D-16 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 XD 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 62141 IEC:2005(E)CONTENTS FOREWORD.6 1 Scope.8 2 Normative references.8 3 Terms,definitions and acronyms.9 3.1 Terms and definitions.9 3.2 Acronyms.10 4 Environment and test conditions.10 4.1 Calibration tape.11 4.2 Record locations and dimensions.11 5 Tape and cassette physical specifications.11 5.1 Magnetic tape specifications.11 5.2 Cassette specifications.11 6 Tape record physical parameters.34 6.1 Input reference signal.34 6.2 Tape speed.34 6.3 Helical record physical parameters.34 6.4 Longitudinal record physical parameters.35 7 Longitudinal track signal and magnetic parameters.39 7.1 Longitudinal track record parameters.39 7.2 Control track record parameters.39 7.3 Time and control code track record parameters.40 8 Source picture and audio processing.41 8.1 Introduction.41 8.2 Input formats.44 8.3 Input data segmentation and shuffling.46 8.4 Picture data encoding.60 8.5 Data packing.63 8.6 Audio input format and data packing.77 9 Helical track signal parameters and magnetization.80 9.1 Introduction.80 9.2 Video data outer correction and shuffling.80 9.3 Audio data outer correction and shuffling.82 9.4 Helical track data parameters.86 9.5 Channel coding.97 9.6 Magnetization.97 Annex A(normative)Digital interfaces.98 Annex B(informative)Tape transport and scanner.100 Annex C(informative)Compatibility with the other digital formats using Type-L derivative cassettes.103 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.62141 IEC:2005(E)3 Figure 1 Top-and side-view dimensions(S-cassette).14 Figure 2 Bottom-view dimensions(S-cassette).15 Figure 3 Datum areas,supporting areas,tape guides and associated dimensions (S-cassette).17 Figure 4 Reel location in the unlocked position(S-cassette).17 Figure 5 Protecting lid dimensions(S-cassette).18 Figure 6 Reel dimensions(S-cassette).19 Figure 7 Reel hei