EN 61327:1995
(Main)Helical-scan digital composite video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format D-3
Helical-scan digital composite video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format D-3
Specifies the content, format and recording method of the data blocks forming the helical records on the tape containing video, audio and associated data using the 12,65 mm (0,5 in) type D-3 cassettes.
Videokassettensystem mit Schrägspuraufzeichnung digitaler Composite-Signale auf Magnetband 12,65 mm (0,5 in) - D3-Format
Système de magnétoscope numérique à chrominance composite à cassette à balayage hélicoïdal utilisant la bande magnétique de 12,65 mm (0,5 in) - Format D-3
Système de magnétoscope numérique à chrominance composite à cassette à balayage hélicoïdal utilisant la bande magnétique de 12,65 mm (0,5 in), format D-3.
Helical-scan digital composite video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format D-3 (IEC 61327:1995)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 61327:1999
01-april-1999
Helical-scan digital composite video cassette recording system using 12,65 mm
(0,5 in) magnetic tape - Format D-3 (IEC 61327:1995)
Helical-scan digital composite video cassette recording system using 12,65 mm (0,5 in)
magnetic tape - Format D-3
Videokassettensystem mit Schrägspuraufzeichnung digitaler Composite-Signale auf
Magnetband 12,65 mm (0,5 in) - D3-Format
Système de magnétoscope numérique à chrominance composite à cassette à balayage
hélicoïdal utilisant la bande magnétique de 12,65 mm (0,5 in) - Format D-3
Ta slovenski standard je istoveten z: EN 61327:1995
ICS:
33.160.40 Video sistemi Video systems
SIST EN 61327:1999 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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NORME
CEI
INTERNATIONALE
IEC
1327
INTERNATIONAL
Première édition
STANDARD
First edition
1995-07
Système de magnétoscope numérique
à chrominance composite à cassette
à balayage hélicoïdal utilisant la bande
magnétique de 12,65 mm (0,5 in) –
Format D-3
Helical-scan digital composite video
cassette recording system using
12,65 mm (0,5 in) magnetic tape –
Format D-3
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1327 ©IEC:1995 — 3 —
CONTENTS
Page
11
FOREWORD
13
INTRODUCTION
Clause
15
1 General
15
1.1 Scope and object
15
1.2 Normative references
17
1.3 Definitions, symbols and abbreviations
17
2 Technical data
17
2.1 Environment and test conditions
19
2.2 Reference tape
2.3 Calibration tape 19
19
Record locations and dimensions
2.3.1
2.3.2 Calibration signals 19
2.3.3 Purchase 19
21
3 Video tape cassette
21
3.1 Mechanical parameters
21 3.1.1 Cassette dimensions
21 3.1.2 Identification of cassettes
21 3.1.3 Tape length, thickness and play times
23
3.1.4 Coating face
23
3.1.5 Datum planes
23
3.1.6 Window and labels
23
3.1.7 Identification holes
25
Leader/trailer tape 3.1.8
27
Reels 3.1.9
3.1.10 Lid 29
3.2 Video tape specification 29
3.2.1 Base 29
3.2.2 Width 29
31
Width fluctuation 3.2.3
31 3.2.4 Reference edge straightness
31
3.2.5 Tape thickness
31 3.2.6 Transmissivity
31
Offset yield strength 3.2.7
31
Magnetic coating 3.2.8
31
Coating coercivity 3.2.9
31 3.2.10 Particle orientation
33
4 Helical recordings
33
4.1 Tape speed
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- 5 -
13270O IEC:1995
Page
Clause
33 4.2 Erase head and record location and dimensions
33
4.2.1 Erase head
33 4.2.2 Record location and dimensions
33
4.2.3 Reference edge
33 4.2.4 Track pitch
33
4.2.5 Flying erase heads
33
4.3 Helical track record tolerance zones
35
4.4 Relative positions of recorded signals
35
4.4.1 Relative positions of the longitudinal tracks
35
4.4.2 Helical/control track relationship
35
4.4.3 Programme area reference point
35
4.5 Gap azimuth
35 Cue track, control track, time and control code track
4.5.1
35 4.5.2 Helical track
4.6 Transport and scanner 37
37
5 Programme track data arrangement
37
5.1 Introduction
37
5.2 Labelling convention
5.3 Sector details 39
5.3.1 Sync block 39
5.3.2 Sync pattern 39
39
Identification pattern 5.3.3
41
5.3.4 Data field
45
5.3.5 Sector preamble
47 5.3.6 Sector postamble
47
5.4 Edit gaps
47 5.5 Channel coding
47
5.5.1 Coding rules
49 5.5.2 Data rate and wavelength
51
5.6 Magnetization
51
5.6.1 Polarity
5.6.2 Recorded equalization 51
51
5.6.3 Record level
51
Video interface 6
51 Encoding parameters 6.1
51 Parallel digital signal interface 6.2
51
7 Audio interface
51
7.1 Encoding parameters
51
7.1.1 Sampling
53 7.1.2 Reference level
53
7.2 Digital signal interface
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– 7 –
1327 ©IEC:1995
Page
Clause
53
Video processing 8
53
8.1 Recorded and non-recorded data
Recorded samples of digital active line and lines
8.1.1
53
of the television frame
55
8.1.2 Non-recorded data
55
8.1.3 Source pre-coding
55
Channel distribution of samples
8.2
55
Shuffling 8.3
55
8.3.1 Introduction
57
...
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