1、BRITISH STANDARD BS EN 61834-10:2001 IEC 61834-10:2001 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 10: DTV format The European Standard EN 61834-10:2001 has the status of a British Stan
2、dard ICS 33.160.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 61834-10:2001 This British Standard, having been prepared under the direction of the Electrotechnical Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Str
3、ategy Committee on 30 November 2001 BSI 30 November 2001 ISBN 0 580 38732 1 National foreword This British Standard is the official English language version of EN 61834-10:2001. It is identical with IEC 61834-10:2001 The UK participation in its preparation was entrusted to Technical Committee EPL/10
4、0, Audio, video and multimedia systems and equipment, which has the responsibility to: A list of organizations represented on this committee 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, IEC 27-1 ha
5、s been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-references The British Standards which implement international or European publications referred to in this document may
6、 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 Standard does not purport to include all the necessary provisions of a contract. Users of British S
7、tandards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and
8、keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 43 and a back cover. The BSI copyright date displayed in this document i
9、ndicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 61834-10 NORME EUROPENNE EUROPISCHE NORM May 2001 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Kom
10、itee fr 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 61834-10:2001 E ICS 33.160.40 English version Recording - Helical-scan digital video
11、 cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 10: DTV format (IEC 61834-10:2001) Enregistrement - Systme de magntoscope numrique cassette balayage hlicodal utilisant la bande magntique de 6,35 mm, destin au grand public (sy
12、stmes 525-60, 625-50, 1125-60 et 1250-50) Partie 10: Format DTV (CEI 61834-10:2001) Aufzeichnungstechnik - Videokassettensystem mit digitaler Schrgspuraufzeichnung auf Magnetband 6,35 mm fr den Heimgebrauch (Systeme 525-60, 625-50, 1125-60 und 1250-50) Teil 10: DTV-Format (IEC 61834-10:2001) This Eu
13、ropean Standard was approved by CENELEC on 2001-04-01. 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 referen
14、ces 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 mem
15、ber 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, Netherland
16、s, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EN 61834-10:2001 - 2 - Foreword The text of document 100B/282/FDIS, future edition 1 of IEC 61834-10, prepared by SC 100B, Audio, video and multimedia information storage systems, of IEC TC 100, Audio, video and multimedia systems an
17、d equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61834-10 on 2001-04-01. 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) 2002-01-0
18、1 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-04-01 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 notice The text of the Internati
19、onal Standard IEC 61834-10:2001 was approved by CENELEC as a European Standard without any modification. _ 2egaP EN6183410:2001 1002rebmevoN92ISB Page2 EN6183410:2001 BSI30November200161834-10 IEC:2001 3 CONTENTS Page Clause 1 General . 5 1.1 Scope 5 1.2 Normative references.5 1.3 Abbreviations. 6 1
20、.4 Environment and test conditions. 7 2 Helical recordings 7 2.1 Tape speed, recording location and dimensions 7 2.2 Scanner configuration 7 3 Programme track data arrangement 8 3.1 Labelling convention 8 3.2 Audio sector 8 3.3 Video sector 8 3.4 Subcode sector 8 4 Audio signal processing . 8 5 DTV
21、signal processing . 8 5.1 Introduction 8 5.2 Formatting for DTV recording . 8 5.3 5_SB unit. 9 5.4 SB_extra_header . 9 5.5 Mapping TS packets onto sync blocks 9 5.6 TSP_extra_header .9 5.7 Location of MPEG data .10 5.8 Normal play data.10 5.9 Trick play data 10 5.10 Stuffing data .11 5.11 Error corr
22、ection code 11 6 Subcode signal processing12 7 System data12 7.1 AAUX12 7.2 VAUX13 7.3 MIC 13 7.4 Pack header table for MPEG recording 13 8 Data structure at digital interface.29 9 Requirements and recommendations.30 9.1 Selecting the recording mode 30 9.2 Buffer requirements 30 9.3 Deriving the tim
23、estamp from the TP_extra_header.31 Bibliography 42 Annex ZA (normative) Normative references to international publications with their corresponding European publications .43 3egaP EN6183410:2001 1002rebmevoN92ISB Page3 EN6183410:2001 BSI30November200161834-10 IEC:2001 4 Page Figure 1 SB_extra_header
24、 32 Figure 2 Content of SB_extra_header .33 Figure 3 5_SB unit33 Figure 4 TSP_extra_header34 Figure 5 Track format of 25/12,5/6,25 Mbps recording modes .35 Figure 6 Trick play data areas and repetition cycle36 Figure 7 Stuffing in 5_SB units37 Figure 8 Stuffing the second TS packet in 5_SB units .37
25、 Figure 9 Insertion of null TS packet.37 Figure 10 Stuffing in the TS packet.37 Figure 11 ECC3 code word.38 Figure 12 Interleaving on a 10-track basis (ECC3 block) .38 Figure 13 Main area of VAUX .39 Figure 14 Simplified block diagram of record situation.40 Figure 15 Simplified block diagram of play
26、back situation.41 Figure 16 Example of constant overall delay .41 Table 1 Tape speed and track angle for each recording mode.32 Table 2 Scanner configuration for multi-mode recorder .32 Table 3 Application ID of video area32 Table 4 Relationship between number of repetitions, possible search speeds
27、and maximum bit rate.36 Table 5 Number of repetitions of trick play data 36 Table 6 Duration of subcode flags.38 Table 7 Duration of MPEG Source Control Pack39 Table 8 Recommended switching points for selection of recording mode.40 Table 9 Maximum NP bit rates for different recording modes.40 4egaP
28、EN6183410:2001 1002rebmevoN92ISB Page4 EN6183410:2001 BSI30November200161834-10 IEC:2001 5 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 10: DTV format 1 General 1.1 Scope This part of IE
29、C 61834 specifies the content, format and recording method for the data blocks forming the helical records on the tape containing audio, video and system data. This part describes the specifications for the recording of single DTV programmes. The DTV data is delivered to the digital video cassette r
30、ecorder via a digital interface or by a built-in tuner (IRD). The DTV data consists of an MPEG2 transport stream containing one or more programmes. In DTV, video signal coding is based on MPEG2. One programme may consist of one video bit stream or several audio bit streams and data bit streams. Due
31、to the varied bit rates of single DTV programmes, several recording modes are specified in order to make efficient use of the storage capacity of the digital video cassette recorder. In addition to the normal play data stream of DTV recording, one or two special trick play data streams may optionall
32、y be generated and recorded in the video area. In this part, the data structure of a track is defined by APT = 000b which consists of four areas as described in 4.3.2 of IEC 61834-1 and AP1 = AP3 = 000b. The data structure of MIC is the same as in clause 10 of IEC 61834-2. 1.2 Normative references T
33、he following normative documents contain provisions which, through reference in this text, constitute provisions of this part of IEC 61834. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of IE
34、C 61834 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International
35、Standards. IEC 61834-1:1998, 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 1: General specifications Amendment 1 5egaP EN6183410:2001 1002rebmevoN92ISB Page5 EN6183410:2001 BSI30November2
36、00161834-10 IEC:2001 6 IEC 61834-2:1998, 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 2: SD format for 525-60 and 625-50 systems IEC 61834-4:1998, Recording Helical-scan digital video ca
37、ssette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 4: Pack header table and contents IEC 61834-6, Recording Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60
38、and 1250-50 systems) Part 6: SDL format 1) IEC 61883-1:1998, Consumer audio/video equipment Digital interface Part 1: General IEC 61883-4:1998, Consumer audio/video equipment Digital interface Part 4: MPEG2-TS data transmission ETS 300 468:1998, Specification for Service Information (SI) in DVB syst
39、ems EBU SPB 492:1992, Teletext specifications 1.3 Abbreviations For the purposes of this part of IEC 61834, the following abbreviations apply. AAUX: Audio auxiliary data BCH: Base-Chaudhuri-Hocquenghem code, one of the well-known error correction codes CGMS: Copy Generation Management System DTV: Di
40、gital Television (MPEG transmission in USA) (differs from ATV) DVB: Digital Video Broadcast (used for organization and the signal) DVCR: Digital Video Cassette Recorder DCT Discrete cosine transform ECC: Error Correction Code ECC1: Inner error correction (within the SB) ECC2: Outer error correction
41、(within one track) ECC3: Extra outer error correction (several tracks) EIT: Event Information Table FEC: Forward Error Correction (used in MPEG transmission) GF: Galois field IRD: Integrated Receiver Decoder MIC: Memory in Cassette MPML: Main Profile at Main Level MPHL: Main Profile at High Level MP
42、EG: Motion Pictures Expert Group NP: Normal play _ 1)To be published. 6egaP EN6183410:2001 1002rebmevoN92ISB Page6 EN6183410:2001 BSI30November200161834-10 IEC:2001 7 PAT: Programme Association Table PCR: Programme Clock Reference PID: Programme Identification PMT: Programme Map Table PSI: Programme
43、 Specific Information SB: Sync block SD/HD: Standard Definition/High Definition (recording modes on DVCR) SI: Service Information STB: Set-Top-Box Tp: Track pitch TP: Trick play TPH: Higher Trick play speed TPL: Lower Trick play speed TS: Transport Stream TSH: Most significant part of timestamp_coun
44、ter value TSL: Least significant part of timestamp_counter value TSP: Transport Stream Packet VAUX: Video auxiliary data 1.4 Environment and test conditions Same as IEC 61834-2. 2 Helical recordings 2.1 Tape speed, recording location and dimensions One of three recording modes can be used. The tape
45、speed and track angle depend on the recording mode as shown in table 1. The tape speed tolerance shall be less than 0,5 %. Record location and dimensions for continuous recording shall be as specified in figure 1 of IEC 61834-2. For recording, dimensions of helical tracks shall be within the toleran
46、ces specified in the table 3 of IEC 61834-1, except that, where applicable, parameters in table 1 shall override those in table 3 of IEC 61834-1. Each sector location from the start of the SSA shall be as specified in figure 2 of IEC 61834-2 and table 1 (525-60 system) of IEC 61834-2. The track cent
47、re lines shall serve as their position references for specifying the pattern on tape. The values for the effective area upper edge, record and playback guarantee, overwrite margin (Om) and switching margin for recording amplifiers shall be the same as those in IEC 61834-2. 2.2 Scanner configuration
48、If the recorder supports more than one recording mode, the scanner configuration shall be used as shown in table 2. 7egaP EN6183410:2001 1002rebmevoN92ISB Page7 EN6183410:2001 BSI30November200161834-10 IEC:2001 8 3 Programme track data arrangement 3.1 Labelling convention Same as 3.2 of IEC 61834-2. 3.2 Audio sector Same as 3.3 of IEC 61834-2. 3.3 Video sector Same as 3.4 of IEC 61834-2, except AP2 as shown in table 3. 3.4 Subcode sector Same as 3.5 of IEC 61834-2. 4 Audio signal processing The audio sector may be used for recording audio data or for recording other application data.
