1、 STD-BSI BS EN bL834-b-ENGL 2003 B Lb2LIbb9 0933475 5T BRITISH STANDARD 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 6: SDL format The European Standard EN 61834-6:2000 has the statu
2、s of a British Standard ICs 33.160.40 rn BS EN IEC 61 834-6:2001 61834-6:2000 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STD-BSI BS EN bL3q-b-ENGL 2OOL = Lb2qbbS 07LLLi7b Li33 BS EN 61834-6:2001 This British Standard, having been prepared under the direction of the Electr
3、otechnical Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 O BSI 06-2001 National foreword This British Standard is the official English language version of EN 61834- 6:2000. It is identical with IEC 61834-6:2000. The UK participat
4、ion in its preparation was entrusted by Technical Committee EPL1100, Audio, video and multimedia systems and equipment, to Subcommittee EPL11002, Recording, which has the responsibility to: - - aid enquirers to understand the text; present to the responsible internationalEuropean committee any enqui
5、ries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. - A list of organizations represented on this subcommittee can be obtained on request to its secretary. From 1 January 1997,
6、 all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has 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 Attention is dr
7、awn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards
8、 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 Standards are responsible for th
9、eir correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 45, and a back cover. The BSI copyright date displayed in this document
10、indicates when the document was last issued. Amendments issued since publication Amd. No. IDate I Comments ISBN O 580 37265 O STD-BSI BS EN bL834-b-ENGL 2001 II Lb2qbb7 07LL477 37T EUROPEAN STANDARD EN 61834-6 NORME EUROPENNE EUROPISCHE NORM November 2000 ICs 33.160.40 English version Recording - He
11、lical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60,625-50, I 125-60 and 1250-50 systems) Part 6: SDL format (IEC 61 834-612000) Enregistrement - Systmes de magntoscopes numriques cassette balayage hlicodal sur bande magntique de 6,35 mm, pour usag
12、e grand public (systmes 525-60, 625-50, 1 125-60 et 1250-50) Partie 6: Format SDL (CE1 61 834-612000) Aufzeichnung - Videokassettensystem mit digitaler Schrgspuraufzeichnung auf Magnetband 6,35 mm fr den Heimgebrauch (Systeme 525-60, 625-50, 1 125-60 und 1250-50) Teil 6: SDL-Format (IEC 61 834-61200
13、0) This European Standard was approved by CENELEC on 2000-09-01. CENELEC members are bound to comply with the CENKENELEC 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 bibliographica
14、l 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 CE
15、NELEC 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, N
16、etherlands, Norway, Portugal, 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 Q 2
17、000 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61834-6:2000 E STD-BSI BS EN bL834-b-ENGL 2OOL Lb24bb7 07LL478 20b W Page 2 EN 61834-6:2000 Foreword The text of document 100B/263/FDIS, future edition I of IEC 61834-6, prepared
18、 by SC 1008, 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 61834-6 on 2000-09-01. The following dates were fixed: - latest date by which the E
19、N has to be implemented at national level by publication of an identical national standard or by endorsement - latest date by which the national standards conflicting with the EN have to be withdrawn Annexes designated “normative“ are part of the body of the standard. In this standard, annexes A, B
20、and ZA are normative. Annex ZA has been added by CENELEC. Endorsement notice (dop) 2001-06-01 (dow) 2003-09-01 The text of the International Standard IEC 61834-6:2000 was approved by CENELEC as a European Standard without any modification. STD-BSI BS EN bLA34-b-ENGL ZOOL D Lb24bbS 07LL479 142 D Page
21、 3 EN 61834-6:2000 CONTENTS Page Clause 1 2 3 4 5 6 7 General 6 1 . 1 1.2 Normative references 6 1.3 1.4 Environment and test conditions 7 2.1 Tape speed . 7 2.2 Record location and dimensions 7 3.1 Introduction . 8 3.2 Labelling convention . 8 3.3 Audio sector 8 3.4 Video sector 8 Audio interface .
22、 8 Scope . 6 Definitions, symbols and abbreviations 7 Helical recordings 7 Programme track data arrangement . 8 3.5 Subcode sector . 8 Video interface . 8 Audio signal processing . 8 Error correction code 9 6.1 Introduction . 8 6.2 6.3 Randomization pattern 9 6.4 Audio encoding . 9 6.5 Audio channel
23、 allocation . 9 6.6 Frame structure 9 6.7 Shuffling method 10 6.8 Audio auxiliary data (AAUX) . 11 6.9 Invalid recording 11 Video signal processing 11 7.1 Introduction 11 7.2 Error correction code . 11 7.3 Randomization pattern . 11 7.4 Video structure 11 7.5 DCT processing . 15 7.6 Quantization 15
24、7.7 7.8 7.9 7.1 O 7.1 I 7.1 2 Variable length coding (VLC) 15 Arrangement of a compressed macro block 15 Arrangement of a video segment 16 Data-sync block and compressed macro block . 17 Video auxiliary data (VAUX) . 17 Invalid recording 17 Q BSI 06-2001 Page 4 EN 61834-6:2000 Clause Page 8 Subcode
25、signal processing 18 The recording periods of TAG ID 18 Main area and optional area . 18 9 System data 18 8.1 8.2 FRID . 18 8.3 9.1 AAUX 18 9.2 VAUX 19 9.3 Subcode 20 9.4 MIC . 20 10 Data structure for digital interface 21 10.1 Introduction 21 10.2 Data structure 21 10.3 DIF sequence 21 10.4 DIF blo
26、ck . 21 10.5 Frame period . 22 10.6 Playback speed 22 Annex A (normative) Long play mode with narrow track pitch . 40 Absolute track number . 40 Annex B (normative) Definition of AUX position on digital interface in SDL mode . 43 Data structure for digital interface 43 Annex ZA (normative) Normative
27、 references to international publications with their corresponding European publications 45 A.? Helical recordings 40 A.2 6.1 Transmitting pattern . 43 8.2 Figure 1 . Frames and tracks (525-60 system) 25 Figure 2 . Frames and tracks (625-50 system) 25 Figure 3 . Transmission samples for 525-60 syste
28、m 28 Figure 4 . Transmission samples for 625-50 system 29 Figure 5 - DCT block and the pixel coordinates . 29 Figure 6 - Rightmost DCT block in the colour difference signal 30 Figure 7 - DCT block arrangement 30 Figure 8 - Macro block and DCT blocks . 31 Figure 9 - Super blocks and macro blocks in a
29、 frame on TV screen for 525-60 system 31 Figure 10 - Super blocks and macro blocks in a frame on TV screen for 625-50 system 32 Figure 11 - Macro block order in a super block 32 Figure 12 - Arrangement of video segment after bit rate reduction . 33 Figure 13 - The relationship between the compressed
30、 macro block number and the Figure 14 - Data structure for transmission 36 Figure B.1 - Data in the header section . 44 data-sync block . 34 Figure B.2 - DFF and VAUX main area 44 O BSI 06-2001 STD-BSI BS EN b1834-b-ENGL 2003 m lb24bb9 09334811 ATO m Page 5 EN 61834-6:2000 Page Table 1 . Record loca
31、tion and dimensions . 23 Table 2 . Sector location from SSA (525-60 system) . 23 Table 3 . Sector location from SSA (625-50 system) . 24 Table 6 - Track pair number (625-50 system) 26 Table 7 - Audio encoding mode in an audio block 26 Table 8 - The construction of an audio block . 27 Table 10 - Numb
32、er of audio samples per frame (unlocked mode) 27 Table 11 -Number of audio samples per frame (locked mode) . 27 Table 12 - Subcode data in the main operational area and recommended data for the optional area in the case of no optional use (for users tape) 35 Table 13 - Subcode data in the main opera
33、tional area and recommended data for the optional area in the case of no optional use (for pre-recorded tape) 35 Table 14 - DIF sequence numbering (525-60 system) 36 Table 15 - DIF sequence numbering (625-50 system) 36 Table 16 - DIF blocks and subcode sync blocks 37 Table 17 - DIF blocks and VAUX d
34、ata-sync blocks 37 Table 19 - DIF blocks and compressed macro blocks 39 Table A.l - Record location and dimensions 41 Table A.2 - Sector location from SSA (525-60 system) 41 Table B.l - Transmitting pattern 43 Table B.2 - DIF frame flag . 44 Table 4 . Scanner example . 24 Table 9 - Basic channel all
35、ocation rule in SD-2ch audio . 27 Table 18 - DIF blocks and audio data-sync blocks . 38 Table A.3 - Sector location from SSA (625-50 system) 42 O BSI 06-2001 STD*BSI ES EN bL834-b-ENGL 2001 M lbZLibb7 0911482 737 Page 6 EN 61834-6:2000 HELICAL-SCAN DIGITAL VIDEO CASSETTE RECORDING SYSTEM USING 6,35
36、mm MAGNETIC TAPE FOR CONSUMER USE (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 6: SDL format I General 1.1 Scope This part of IEC 61834 describes the format extension, using higher compression to increase recording time and reduce running cost. While all DVCRs must have the capability of rec
37、ording and/or playback in SD (SP) mode, this extension is optional. For this part of IEC 61834, the track data structure is defined by APT = 000b which consists of four areas as described in IEC 61834-1, 4.3.2 and APl = AP2 = AP3 = 000b. The data structure of MIC is as clause 10 in IEC 61834-2. 1.2
38、Normative references The 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 ba
39、sed on this part of IEC 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 IS0 maintain registers of currentl
40、y valid International Standards. IEC 61 834-1 : 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) - Pari I: General specifications Amendment 1 1) IEC 61 834-2: 1998, Recording - Helical-sc
41、an digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Pari 2: SD format for 525-60 and 625-50 systems IEC 61 834-3, Recording - Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consu
42、mer use (525-60, 625-50, 1125-60 and 1250-50 systems) - Part 3: HD format for 1125-60 and 1250-50 systems IEC 61 883-1 : 1998, Consumer audiohide0 equipment - Digital interface - Part I: General IEC 61883-5:1998, Consumer audiohide0 equipment - Digital interface - Part 5: SOL-DVCR data transmission
43、ITU-R Recommendation 601 -2, Encoding parameters of digital television for studios ITU-R Report 624-4, Characteristics of television systems To be published. O BSI 06-2001 STD-BSI BS EN bL83g-b-ENGL 2001 1b24bb7 09LL483 673 I Page 7 EN 61834-6:2000 1.3 Definitions, symbols and abbreviations For the
44、purpose of this part of IEC 61834, the following definitions or abbreviations apply. AAUX: BCH code: CGMS: DCT: EOB: MIC: NABTS: OETM events: TOC: VAUX: VLC: Audio auxiliary data Bose-Chaudhuri-Hocquenghem code, one of the well-known error correction codes Copy generation management system Discrete
45、cosine transform End of block Memory in cassette North American broadcasting teletext specifications Optional events except text and makers optional events Table of contents Video auxiliary data Variable length coding 1.4 Environment and test conditions Same as IEC 61834-2. 2 Helical recordings 2.1
46、Tape speed The tape speed is 9,424/1,001 mmls (525-60 system) or 9,424 mmls (625-50 system). The tape speed tolerance is +0,5 YO. 2.2 Record location and dimensions Record location and dimensions for continuous recording shall be as specified in figure 1 of IEC 61834-2. The values are listed in tabl
47、e 1. For recording, helical tracks shall be contained within the tolerance specified in table 1. Each sector location from the start of the SSA shall be as specified in figure 2 of IEC 61834-2 and table 2 (525-60 system) or table 3 (625-50 system). The physical tape pattern shall be specified by the
48、 centre line of each track. The effective area upper edge, record and playback guarantee, overwrite margin (OM) and switching margin for recording amplifiers are as in IEC 61834-2. 2.2.1 Scanner example Scanner dimensions in table 4 are one possible configuration. Other mechanical configurations are
49、 permitted, provided the same footprint of recorded information is produced on tape. O BSI 06-2001 STDOBSI BS EN b183Y-b-ENGL 2001 1b24bb7 OSL1IIA 50T m Page 8 EN 61834-6:2000 3 Programme track data arrangement 3.1 Introduction Each television frame is recorded on 5 tracks for the 525-60 system and 6 tracks for the 625-50 system. The helical tracks are recorded with video, audio and system data as for the SD format in IEC 61834-2. The arrangement of a track is as shown in IEC 61834-2 for each system. Each track is numbered from the beginning track of the tel
