EN 62071:2001
(Main)Helical-scan compressed digital video cassette recording system using 6,35 mm magnetic tape - Format D-7
Helical-scan compressed digital video cassette recording system using 6,35 mm magnetic tape - Format D-7
Specifies the content, format and recording method of the data blocks containing video, audio and associated data which form the helical records on 6.35 mm tape in cassettes as given in SMPTE 306M.
Videokassettensystem mit komprimierter digitaler Schrägspuraufzeichnung auf Magnetband 6,35 mm - Format D-7
Système de magnétoscope numérique à cassette à balayage hélicoïdal à signal compressé utilisant la bande magnétique de 6,35 mm - Format D-7
Spécifie le contenu, le format et la méthode d'enregistrement des blocs de données contenant de la vidéo, de l'audio et des données associées formant des enregistrements hélicoïdaux sur les bandes de 6,35 mm dans les cassettes, comme cela est spécifié dans le SMPTE 306M.
Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 (IEC 62071:2000)
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Standards Content (Sample)
SLOVENSKI SIST EN 62071:2005
STANDARD
januar 2005
Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na
magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 (IEC
62071:2000)
(istoveten EN 62071:2001)
Helical-scan compressed digital video cassette recording system using 6, 35 mm
magnetic tape - Format D-7 (IEC 62071:2000)
ICS 33.160.40 Referenčna številka
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
EUROPEAN STANDARD EN 62071
NORME EUROPÉENNE
EUROPÄISCHE NORM March 2001
ICS 33.160.40
English version
Helical-scan compressed digital video cassette recording system
using 6,35 mm magnetic tape -
Format D-7
(IEC 62071:2000)
Système de magnétoscope numérique Videokassettensystem mit komprimierter
à cassette à balayage hélicoïdal digitaler Schrägspuraufzeichnung
à signal compressé utilisant la bande auf Magnetband 6,35 mm -
magnétique de 6,35 mm - Format D-7
Format D-7 (IEC 62071:2000)
(CEI 62071:2000)
This European Standard was approved by CENELEC on 2000-11-01. CENELEC members are bound
to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 62071:2001 E
Foreword
The text of document 100B/271/FDIS, future edition 1 of IEC 62071, prepared by SC 100B, Audio,
video and multimedia information storage systems, of IEC TC 100, Audio, video and multimedia
systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by
CENELEC as EN 62071 on 2000-11-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2001-08-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2003-11-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annexes A to E and ZA are normative and annex F is informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 62071:2000 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 62071:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of
any of these publications apply to this European Standard only when incorporated in it by
amendment or revision. For undated references the latest edition of the publication referred to
applies (including amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 61834-1 1998 Recording - Helical-scan digital video EN 61834-1 1998
cassette recording system using 6,35 mm
magnetic tape for consumer use (525-60,
625-50, 1125-60 and 1250-50 systems)
Part 1: General specifications
IEC 61834-2 1998 Part 2: SD format for 525-60 and 625-50 EN 61834-2 1998
systems
SMPTE 12M Television, audio and film - Time and--
control code
ITU-R BT.470-6 1998 Conventional television systems - -
ITU-R BT.601-5 1995 Studio encoding parameters of digital--
television for standard 4:3 and wide-
screen 16:9 aspect radios
NORME CEI
INTERNATIONALE
IEC
INTERNATIONAL
Première édition
STANDARD
First edition
2000-11
Système de magnétoscope numérique à cassette
à balayage hélicoïdal à signal compressé utilisant
la bande magnétique de 6,35 mm – Format D-7
Helical-scan compressed digital video cassette
recording system using 6,35 mm magnetic tape –
Format D-7
© IEC 2000 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in
utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission in
microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
PRICE CODE XG
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue
62071 © IEC:2000 – 3 –
CONTENTS
Page
FOREWORD .15
Clause
1 General. 17
1.1 Scope . 17
1.2 Normative references. 17
1.3 Symbols and abbreviations. 19
1.4 Environment and test conditions. 21
1.5 Reference tapes. 21
1.6 Calibration tapes . 21
2 Video cassette . 23
2.1 Mechanical parameters . 23
2.2 Video tape specification . 77
3 Helical recordings . 79
3.1 Tape speed. 79
3.2 Sectors . 79
3.3 Record location and dimensions . 79
3.4 Helical track record tolerance zones . 79
3.5 Relative positions of recorded information . 79
3.6 Gap azimuth . 91
3.7 Transport and scanner . 91
4 Programme track data. 95
4.1 General. 95
4.2 ITI sector . 119
4.3 Audio sector. 139
4.4 Video sector. 149
4.5 Subcode sector . 157
4.6 Edit gap . 163
5 Audio processing. 165
5.1 Introduction. 165
5.2 Encoding mode . 165
5.3 Audio shuffling . 167
5.4 Audio auxiliary data (AAUX) . 169
5.5 Error correction code addition . 175
6 Video processing. 179
6.1 Introduction. 179
6.2 Video structure. 179
6.3 DCT processing . 203
6.4 Quantization. 207
6.5 Variable length coding (VLC). 213
6.6 Arrangement of a compressed macro block . 213
6.7 Arrangement of a video segment . 221
6.8 Intraframe deshuffling . 225
6.9 Video auxiliary data (VAUX) . 231
6.10 Error correction code addition . 237
62071 © IEC:2000 – 5 –
Clause Page
7 Subcode processing. 239
7.1 Introduction. 239
7.2 Subcode data. 239
7.3 Error correction code addition . 245
8 Longitudinal tracks . 247
8.1 Control track . 247
8.2 Cue track . 249
9 Interface . 251
9.1 Introduction. 251
9.2 Data structure . 251
Annex A (normative) Tape tension . 279
Annex B (normative) Cross-tape track measurement technique. 281
Annex C (normative) Track pattern during insert editing . 287
Annex D (normative) Frequency characteristics of the F track . 289
Annex E (normative) Digital filter. 291
Annex F (informative) Small cassette adapter . 293
Figure 1 – Top and side views of the M cassette . 27
Figure 2 – Top and side views of the L cassette . 29
Figure 3 – Internal structure and tape path for the M cassette . 31
Figure 4 – Internal structure and tape path for the L cassette . 33
Figure 5 – Datum area and support area for the M cassette . 35
Figure 6 – Datum area and support area for the L cassette . 37
Figure 7 – Bottom view of the M cassette. 39
Figure 8 – Bottom view of the L cassette. 41
Figure 9 – Contact area of the ID board for the M cassette. 47
Figure 10 – Contact area of the ID board for the L cassette. 49
Figure 11 – Light path and leader/trailer tape for the M cassette. 51
Figure 12 – Light path and leader/t
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