IEC 61834-5:1998

Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 5: The character information system

Specifies the character information systems which is applicable to the whole recording system for helical-scan digital video cassettes using 6,35 mm magnetic tape. Provides the method of recording characters in many languages and provides easy operation for users.

Enregistrement - Système de magnétoscope numérique à cassette à balayage hélicoïdal utilisant la bande magnétique de 6,35 mm destiné au grand public (systèmes 525-60, 625-50, 1125-60 et 1250-50) - Partie 5: Système à caractères d'information

Spécifie le système à caractères d'information applicable à l'ensemble du système d'enregistrement des magnétoscopes numériques à cassette à balayage hélicoïdal sur bande magnétique de 6,35 mm. Donne la méthode d'enregistrement des caractères en plusieurs langues et facilite l'emploi par les utilisateurs.

General Information

• Status: Published
• Publication Date: 11-Aug-1998
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.40 - Video systems
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Drafting Committee: WG 3 - TC 100/WG 3
• Current Stage: PPUB - Publication issued
• Start Date: 30-Sep-1998
• Completion Date: 12-Aug-1998

Standards Content (Sample)

INTERNATIONAL
IEC
STANDARD
61834-5
First edition
1998-08
Recording –
Helical-scan digital video cassette
recording system using 6,35 mm magnetic tape
for consumer use (525-60, 625-50, 1125-60
and 1250-50 systems) –
Part 5:
The character information system
Enregistrement –
Système d’enregistrement grand public à vidéocassette
à défilement hélicoïdal pour bande magnétique de 6,35 mm
(systèmes 525-60, 625-50, 1125-60 et 1250-50) –
Partie 5:
Structures des jeux de caractères
Reference number
Numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60 000 series.
Consolidated publications
Consolidated versions of some IEC publications including amendments are
available. 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.
Validity of this publication
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 the date of the reconfirmation of the publication is available
in the IEC catalogue.
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 to be found at the following IEC sources:
• IEC web site*
• Catalogue of IEC publications
Published yearly with regular updates
(On-line catalogue)*
• IEC Bulletin
Available both at the IEC web site* and as a printed periodical
Terminology, graphical and letter symbols
For general terminology, readers are referred to IEC 60050: International Electro-
technical Vocabulary (IEV).
For graphical symbols, and letter symbols and signs approved by the IEC for
general use, readers are referred to publications IEC 60027: Letter symbols to be
used in electrical technology, IEC 60417: Graphical symbols for use on equipment.
Index, survey and compilation of the single sheets and IEC 60 617: Graphical symbols
for diagrams.
* See web site address on title page.

INTERNATIONAL
IEC
STANDARD
61834-5
First edition
1998-08
Recording –
Helical-scan digital video cassette
recording system using 6,35 mm magnetic tape
for consumer use (525-60, 625-50, 1125-60
and 1250-50 systems) –
Part 5:
The character information system
Enregistrement –
Système d’enregistrement grand public à vidéocassette
à défilement hélicoïdal pour bande magnétique de 6,35 mm
(systèmes 525-60, 625-50, 1125-60 et 1250-50) –
Partie 5:
Structures des jeux de caractères
 IEC 1998  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 Varembé Geneva, Switzerland
Telefax: [phone] e-mail: [e-mail] IEC web site http: //www.iec.ch
Commission Electrotechnique Internationale
PRICE CODE
X
International Electrotechnical Commission
For price, see current catalogue

– 2 – 61834-5  IEC:1998(E)
CONTENTS
Page
FOREWORD . 4
Clause
1 General. 6
1.1 Scope . 6
1.2 Normative reference. 6
1.3 Definitions, symbols and abbreviations . 6
2 Data structure of the character information system . 7
2.1 Topic . 7
2.2 Topic unit. 7
2.3 Page unit . 7
2.4 Topic header, page header. 7
2.5 Text unit and text data. 8
3 Packs for the character information system . 8
3.1 TOPIC/PAGE HEADER pack . 8
3.2 TEXT HEADER packs and TEXT packs. 8
3.3 Packs for positioning data . 9
3.4 TEXT flag . 10
4 Full mode. 10
4.1 Main topics and optional topics. 10
4.2 Menu topic . 11
4.3 TOC topic . 11
5 Simple mode . 11
6 Presentation. 11
6.1 Displaying area . 11
6.2 Display mode . 12
6.3 Character space. 12
6.4 Display format and character size. 12
6.5 Active position. 13
7 Coding . 13
7.1 The structure of the 8-bit code. 13
7.2 Control codes. 13
7.3 Code extension techniques . 14
7.4 Coding of DRCS data . 15
7.5 Coding of DCS data . 16

61834-5  IEC:1998(E) – 3 –
Tables
1 Pack header table . 20
2 Display modes. 21
3 Display formats . 34
4 Character size . 34
5 C0 control codes except for LS0, LS1, SS2, SS3 . 38
6 C1 control code . 39
7 Designation codes . 44
8 Invocaton codes . 44
9 OPN-change codes . 44
10 Final byte for DRCS. 46
11 Type of LPS . 46
Figures
1 Data structure of the character information system . 18
2 Topic unit and page unit . 19
3 Packs concerning text . 21
4 Position data in TOC topic . 22
5 Example of TITLE TEXT HEADER pack in MIC. 23
6 Example of a menu topic . 24
7 Example of pre-recorded tape. 27
8 Display image of a TOC. 28
9 Example of TOC topic. 29
10 Example of pre-recorded tape in simple mode . 32
11 Example of user's tape in simple mode . 33
12 Unit screen and displaying area . 33
13 Standard density. 35
14 High density . 36
15 Code table. 37
16 Active position control codes . 42
17 Code extension method using escape sequence . 43
18 Data structure of DRCS data on tape . 45
19 LPS = 73h . 47
20 LPS = 78h . 47
21 LPS = 6Bh. 47
22 LPS = 33h . 47
23 LPS = 38h . 47
24 LPS = 31h . 48
25 LPS = 30h . 48
26 LPS = 32h . 48
27 Data structure of DCS data on tape . 49
28 Example of a character information using DCS data. 50

– 4 – 61834-5  IEC:1998(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
RECORDING – HELICAL-SCAN DIGITAL VIDEO CASSETTE RECORDING
SYSTEM USING 6,35 mm MAGNETIC TAPE FOR CONSUMER USE
(525-60, 625-50, 1125-60 AND 1250-50 SYSTEMS) –
Part 5: The character information system
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical reports or guides and they are accepted by the National Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61834-5 has been prepared by subcommittee 100B: Audio, video
and multimedia information storage systems, of IEC technical committee 100: Audio, video and
multimedia systems and equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
100B/167/FDIS 100B/179/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.

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...

IEC 61834-5
Edition 1.0 1998-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Recording – Helical-scan digital video cassette recording system using 6,35 mm
magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) –
Part 5: The character information system

Enregistrement – Système de magnétoscope numérique à cassette à balayage
hélicoïdal utilisant la bande magnétique de 6,35 mm destiné au grand public
(systèmes 525-60, 625-50, 1125-60 et 1250-50) –
Partie 5: Système à caractères d’information

Copyright © 1998 IEC, Geneva, Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by
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IEC 61834-5
Edition 1.0 1998-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Recording – Helical-scan digital video cassette recording system using 6,35 mm
magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) –
Part 5: The character information system

Enregistrement – Système de magnétoscope numérique à cassette à balayage
hélicoïdal utilisant la bande magnétique de 6,35 mm destiné au grand public
(systèmes 525-60, 625-50, 1125-60 et 1250-50) –
Partie 5: Système à caractères d’information

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
X
CODE PRIX
ICS 33.160.40 ISBN 2-8318-5150-5
– 2 – 61834-5  CEI:1998
SOMMAIRE
Pages
AVANT-PROPOS .6
Articles
1 Généralités .10
1.1 Domaine d’application.10
1.2 Références normatives .10
1.3 Définitions, symboles et abréviations.10
2 Structure des données du système à caractères d’information.12
2.1 Sujet.12
2.2 Unité sujet .12
2.3 Unité page .12
2.4 En-tête sujet, en-tête page.12
2.5 Unité texte et données texte.14
3 Paquets du système à caractères d’information.14
3.1 Paquet EN-TÊTE SUJET/PAGE .14
3.2 Paquets EN-TÊTE TEXTE et paquets TEXTE .14
3.3 Paquets de positionnement des données .16
3.4 Drapeau TEXTE .18
4 Mode complet .18
4.1 Sujets principaux et sujets optionnels.18
4.2 Sujet menu .20
4.3 Sujet TOC .20
5 Mode simple .20
6 Présentation .22
6.1 Zone d’affichage .22
6.2 Mode d’affichage .22
6.3 Espace caractère.22
6.4 Format d’affichage et taille des caractères .24
6.5 Position active .24
7 Codage.24
7.1 Structure du code à huit éléments .24
7.2 Codes de commande .24
7.3 Techniques d’extension du code .26
7.4 Codage de données DRCS .30
7.5 Codage des données DCS .32

61834-5  IEC:1998 – 3 –
CONTENTS
Page
FOREWORD.7
Clause
1 General .11
1.1 Scope.11
1.2 Normative reference .11
1.3 Definitions, symbols and abbreviations.11
2 Data structure of the character information system .13
2.1 Topic .13
2.2 Topic unit .13
2.3 Page unit .13
2.4 Topic header, page header .13
2.5 Text unit and text data .15
3 Packs for the character information system .15
3.1 TOPIC/PAGE HEADER pack.15
3.2 TEXT HEADER packs and TEXT packs .15
3.3 Packs for positioning data.17
3.4 TEXT flag .19
4 Full mode.19
4.1 Main topics and optional topics .19
4.2 Menu topic.21
4.3 TOC topic .21
5 Simple mode.21
6 Presentation .23
6.1 Displaying area.23
6.2 Display mode.23
6.3 Character space .23
6.4 Display format and character size .25
6.5 Active position .25
7 Coding.25
7.1 The structure of the 8-bit code .25
7.2 Control codes .25
7.3 Code extension techniques .27
7.4 Coding of DRCS data.31
7.5 Coding of DCS data .33

– 4 – 61834-5  CEI:1998
Pages
Figure 1 – Structure des données du système à caractères d’information.34
Figure 2 – Unité sujet et unité page .36
Figure 3 – Paquets concernant le texte.40
Figure 4 – Données de positionnement dans le sujet TOC .42
Figure 5 – Exemple de paquet EN-TÊTE TEXTE TITRE dans MIC .44
Figure 6 – Exemple de sujet menu.46-50
Figure 7 – Exemple de cass
...