1、 INTERNATIONAL STANDARD IEC60774-5 First edition2004-04 Helical-scan video tape cassette system using 12,65 mm(0,5 in)magnetic tape on type VHS Part 5:D-VHS Reference number IEC 60774-5:2004(E)LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY B
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8、2 919 03 00 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.INTERNATIONAL STANDARD IEC60774-5 First edition2004-04 Helical-scan video tape cassette system using 12,65 mm(0,5 in)magnetic tape on type VHS Part 5:D-VHS IEC 2004 Copyright-
9、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
10、 20,SwitzerlandTelephone:+41 22 919 02 11 Telefax:+41 22 919 03 00 E-mail:inmailiec.ch Web:www.iec.ch XG For price,see current cataloguePRICE CODE Commission Electrotechnique InternationaleInternational Electrotechnical Commission LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS L
11、OCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.2 60774-5 IEC:2004(E)CONTENTS FOREWORD.7 1 Scope.9 2 Normative references.9 3 Terms definitions and abbreviations.11 3.1 Terms and definitions.11 3.2 Abbreviations.14 4 Fundamental specifications.15 4.1 Cassette.15 4.2 Magnetic tape.17 4.3 Basic format.18
12、5 MPEG2 format.31 5.1 Track configuration and dimensions.31 5.2 MPEG2 Recording Format.43 6 Pack.75 6.1 PACK FORMAT.75 6.2 Pack application.103 Annex A(normative)D-VHS MPEG format.113 A.1 General.113 A.2 D-VHS MPEG transport stream specification.113 A.3 D-VHS MPEG transport stream service informatio
13、n specification.123 Figure 1 D-VHS cassette ID holes.17 Figure 2 Magnetic tape position.20 Figure 3 Switching position.20 Figure 4 Linear and control head(reference).21 Figure 5 Track structure.21 Figure 6 Main data sync block.22 Figure 7 Subcode sync block.24 Figure 8 Data position definition(main
14、code).28 Figure 9 Data position definition(subcode).29 Figure 10 Precoder.30 Figure 11 Magnetic tape position(STD mode).32 Figure 12 Magnetic tape position(LS2 mode).34 Figure 13 Magnetic tape position(LS3 mode).36 Figure 14 Magnetic tape position(LS5 mode).38 Figure 15 Magnetic tape position(LS7 mo
15、de).40 Figure 16 Magnetic tape position(HS mode).42 Figure 17 Subcode sync block(MPEG2 mode).45 Figure 18 Main data sync block(MPEG2 mode).45 Figure 19 +4k times normal speed(STD and LS mode).50 Figure 20 4k and+6k times normal speed(STD and LS mode).50 Figure 21 6k times normal speed(STD and LS mod
16、e).50 LICENSED TO MECON Limited.-RANCHI/BANGALOREFOR INTERNAL USE AT THIS LOCATION ONLY,SUPPLIED BY BOOK SUPPLY BUREAU.60774-5 IEC:2004(E)3 Figure 22 +12k times normal speed(STD and LS mode).50 Figure 23 12k times normal speed(STD and LS mode).51 Figure 24 12k times normal speed(STD and LS mode).51 Figure 25 +3 times normal speed(HS mode).51 Figure 26 3 times normal speed(HS mode).51 Figure 27 +6 times normal speed(HS mode).51 Figure 28 6 times normal speed(HS mode).52 Figure 29 +12 and 12 times
