BS EN 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) - The c.pdf
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1、BRITISH STANDARD BS EN 61834-5:1998 IEC 61834-5: 1998 Recording Helical-scan digital video cassette recording system using6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 5: The character information system The European Standard EN 61834-5:1998 has the status
2、 of a British Standard ICS 33.160.40BSEN 61834-5:1998 This British Standard, having been prepared under the directionof the Electrotechnical Sector Committee, was publishedunderthe authority ofthe Standards Committee andcomesinto effect on 15December 1998 BSI 06-1999 ISBN 0 580 30868 5 National fore
3、word This British Standard is the English language version of EN61834-5:1998. It is identical with IEC 61834-5:1998. The UK participation in its preparation was entrusted by Technical Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/2, Recording, which ha
4、s the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in
5、the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC27-1 has been renumbered as IEC 60027-1. For a period of time during the change over
6、 from one numbering system to the other, publications may contain identifiers from both systems. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European p
7、ublications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British
8、Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front co
9、ver, an inside front cover, pages i and ii, theEN title page, pages 2 to 46, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued
10、 since publication Amd. No. Date CommentsBSEN 61834-5:1998 BSI 06-1999 i Contents Page National foreword Inside front cover Foreword 2 Text of EN 61834-5 5ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 61834-5 October 1998 ICS 33.160.40 Descriptors: Video equipment, digital technics, m
11、agnetoscopes, video recording, sound recording, cassettes for magnetic tapes, magnetic tapes, recording characteristics, data processing, data, organisation of data, character sets English version Recording Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer
12、 use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 5: The character information system (IEC 61834-5:1998) Enregistrement Systme de magntoscope numrique cassette balayage hlicodal utilisant la bande magntique de 6,35 mm, destin au grand public (systmes 525-60, 625-50, 1125-60 et 1250-50) Partie
13、5: Structures des jeux de caractres (CEI 61834-5:1998) Aufzeichnung Videokassettensystem mit digitaler Schrgspuraufzeichnung auf Magnetband 6,35 mm fr den Heimgebrauch (Systeme 525-60, 625-50, 1125-60 und 1250-50) Teil 5: Das Schriftzeichen- Informationssystem (IEC 61834-5:1998) This European Standa
14、rd was approved by CENELEC on 1998-10-01. 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 concernin
15、g 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
16、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, Po
17、rtugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of
18、exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61834-5:1998 EEN 61834-5:1998 BSI 06-1999 2 Foreword The text of document100B/167/FDIS, future edition1 ofIEC61834-5, prepared bySC 100B, Recording, ofIEC TC 100, Audio, video and multimedia systems and equ
19、ipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC asEN61834-5 on1998-10-01. The following dates were fixed: Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Endorsement n
20、otice The text of the International Standard IEC61834-5:1998 was approved by CENELEC as a European Standard without any modification. latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1999-07-01 latest date by
21、 which the national standards conflicting with the EN have to be withdrawn (dow) 2001-07-01EN 61834-5:1998 BSI 06-1999 3 Contents Page Foreword 2 1 General 5 1.1 Scope 5 1.2 Normative reference 5 1.3 Definitions, symbols and abbreviations 5 2 Data structure of the character information system 5 2.1
22、Topic 6 2.2 Topic unit 6 2.3 Page unit 6 2.4 Topic header, page header 6 2.5 Text unit and text data 6 3 Packs for the character information system 6 3.1 TOPIC/PAGE HEADER pack 6 3.2 TEXT HEADER packs and TEXT packs 6 3.3 Packs for positioning data 7 3.4 TEXT flag 7 4 Full mode 7 4.1 Main topics and
23、 optional topics 7 4.2 Menu topic 8 4.3 TOC topic 8 5 Simple mode 8 6 Presentation 8 6.1 Displaying area 8 6.2 Display mode 9 6.3 Character space 9 6.4 Display format and character size 9 6.5 Active position 9 7 Coding 9 7.1 The structure of the 8-bit code 9 7.2 Control codes 10 7.3 Code extension t
24、echniques 10 7.4 Coding of DRCS data 11 7.5 Coding of DCS data 12 Annex ZA (normative) Normative references to international publications with their corresponding European publications Inside back cover Figure 1 Data structure of the character information system 13 Figure 2 Topic unit and page unit
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