IEC 62330-1:2003

Helical-scan digital video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format HD-D5 - Part 1: VTR specifications

This part of IEC 62330 specifies the content, format, and recording method of the data blocks containing HD compressed video data defined in part 2, audio, and associated data which form the helical records on 12,65 mm (0,5 in) tape in cassettes as specified in IEC 61835. In addition, this standard specifies the content, format, and recording method of the longitudinal record containing tracking information for the scanning head associated with the helical records, and also the longitudinal cue audio, and time and control code. One video channel of HD compressed video data and four independent audio channels are recorded in the digital format. Each of these channels is designed to be capable of independent editing. The HD compressed video data are derived from the following HD video signal: 1080 line / 59,94 Hz field frequency interlace system 720 line / 59,94 Hz frame frequency progressive system

General Information

• Status: Published
• Publication Date: 26-May-2003
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 33.160.40 - Video systems
• ICS: 35.240.99 - IT applications in other fields
• Technical Committee: TC 100 - Audio, video and multimedia systems and equipment
• Current Stage: PPUB - Publication issued
• Start Date: 15-Jan-2004
• Completion Date: 27-May-2003

Standards Content (Sample)

INTERNATIONAL IEC
STANDARD
62330-1
First edition
2003-05
Helical-scan digital video cassette recording
system using 12,65 mm (0,5 in) magnetic tape –
Format HD-D5 –
Part 1:
VTR specifications
Reference number
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
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edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
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amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD
62330-1
First edition
2003-05
Helical-scan digital video cassette recording
system using 12,65 mm (0,5 in) magnetic tape –
Format HD-D5 –
Part 1:
VTR specifications
 IEC 2003  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, PO Box 131, CH-1211 Geneva 20, Switzerland
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PRICE CODE
Commission Electrotechnique Internationale
XB
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue

– 2 – 62330-1  IEC:2003(E)
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references. 9
3 Environment and test conditions . 9
3.1 Environment . 9
3.2 Reference tape . 9
3.3 Calibration tape . 9
4 Video tape .10
4.1 Base.10
4.2 Width.10
4.3 Width fluctuation.10
4.4 Tape thickness .10
4.5 Transmissivity.10
4.6 Offset yield strength .10
4.7 Magnetic coating .10
4.8 Coating coercivity .10
4.9 Particle orientation.10
5 Helical recordings .11
5.1 Tape speed .11
5.2 Record location and dimensions .11
5.3 Helical track record tolerance zones .14
5.4 Relative positions of recorded information .15
5.5 Gap azimuth .15
5.6 Transport and scanner.16
6 Programme track data.19
6.1 Introduction .19
6.2 Labelling convention.19
6.3 Sector details .19
6.4 Edit gaps .27
6.5 Channel code .27
6.6 Magnetization .39
7 Video interface .40
8 Audio interface .40
8.1 Encoding parameters.40
8.2 Digital signal interface .40
9 Video processing .40
9.1 Introduction .40
9.2 Recorded data .40
9.3 Channel and video block distribution.42
9.4 Word data arrangement .42
9.5 Video randomize.43
9.6 Outer error protection .43
9.7 Field data array .43
9.8 Order of transmission to inner coding .45

62330-1  IEC:2003(E) – 3 –
10 Audio processing .45
10.1 Introduction .45
10.2 Source coding.45
10.3 Source processing .48
10.4 Auxiliary words .52
10.5 Outer error protection .56
10.6 Inner protection .57
10.7 Order of transmission to inner coding .57
10.8 Channel code .57
10.9 Allocation of audio sectors.57
11 Longitudinal tracks.58
11.1 Relative timing.58
11.2 Control track.58
11.3 Cue record.59
11.4 Time and control code record .59
Annex A (normative) Tape tension .60
Annex B (normative) Cross-tape track measurement technique.61
Annex C (normative) Track pattern during insert editing .65
Bibliography.66
Figure 1 – Record block diagram. 8
Figure 2 – Playback block diagram. 8
Figure 3 – Location and dimensions of recorded tracks .12
Figure 4 – Location of cue and time and control code track record .13
Figure 5 – Location and dimensions of tolerance zones of helical track record .15
Figure 6 – A possible scanner configuration .17
Figure 7 – A possible longitudinal head location and tape wrap.18
Figure 8 – Sector arrangement on helical track .19
Figure 9 – Sync block format.20
Figure 10 – Sync block identification format .21
Figure 11 – Track, segment and field numbers .22
Figure 12 – Sync block number .23
Figure 13 – Sector preamble and postamble .26
Figure 14 – Reconfigured data .41
Figure 15 – Channel and video block distribution .42
Figure 16 – Field data array .44
Figure 17 – Audio data block field array .47
Figure 18 – Audio data block layout .50
Figure 19 – Audio data block arrangement .51
Figure 20 – Digital audio word to byte conversion .52
Figure 21 – Audio data block auxiliary data .53
Figure 22 – Audio channel arrangement.57
Figure 23 – Recorded control record waveform timing.58

– 4 – 62330-1  IEC:2003(E)
Figure B.1 – Correction factors (actual tape speed and tension).63
Figure B.2 – Cross-tape measurement technique .63
Figure B.3 – Track location error plot (example).64
Figure C.1 – A typical pattern during insert editing .65
Table 1 – Record location and dimensions .14
Table 2 – Parameters for a possible scanner design .16
Table 3 – 8-14 modulation (CDS≥0) .29
Table 4 – 8-14 modulation (CDS≤0) .34
Table 5 – Priority of modulation code selection (end DSV = –2) .39
Table 6 – Priority of modulation code
...