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I.S. EN 61835:1999

Current
Current

The latest, up-to-date edition.

HELICAN-SCAN DIGITAL COMPONENT VIDEO CASSETTE RECORDING SYSTEM USING 12.65 MM (0.5 IN) MAGNETIC TAPE - FORMAT D-5
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1999

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

FOREWORD
INTRODUCTION
1 General
  1.1 Scope
  1.2 Normative references
  1.3 Definitions, symbols and abbreviations
  1.4 Environment and test conditions
  1.5 Reference tape
  1.6 Calibration tape
      1.6.1 Record locations and dimensions
      1.6.2 Calibration signals
      1.6.3 Purchase
2 Video tape cassette
  2.1 Mechanical parametres
      2.1.1 Cassette dimensions
      2.1.2 Identification of cassettes
      2.1.3 Tape length, thickness and play time
      2.1.4 Coating face
      2.1.5 Datum planes
      2.1.6 Window and labels
      2.1.7 Identification holes
      2.1.8 Leader/trailer tape
      2.1.9 Reels
      2.1.10 Lid
  2.2 Video tape specification
      2.2.1 Base
      2.2.2 Width
      2.2.3 Width fluctuation
      2.2.4 Tape thickness
      2.2.5 Transmissivity
      2.2.6 Offset yield strength
      2.2.7 Magnetic coating
      2.2.8 Coating coercivity
      2.2.9 Particle orientation
3 Helical recordings
  3.1 Tape speed
  3.2 Record location and dimensions
      3.2.1 Erasure
      3.2.2 Record location and dimensions
      3.2.3 Reference edge
      3.2.4 Track pitch
      3.2.5 Flying erasure
  3.3 Helical track record tolerance zones
  3.4 Relative positions of recorded information
      3.4.1 Relative positions of the longitudinal tracks
      3.4.2 Programme area reference point
  3.5 Gap azimuth
      3.5.1 Cue track, control track, time and control code track
      3.5.2 Helical track
  3.6 Transport and scanner
4 Programme track data arrangement
  4.1 Introduction
  4.2 Labeling convention
  4.3 Sector details
      4.3.1 Sync block
      4.3.2 Sync pattern
      4.3.3 Identification pattern
      4.3.4 Data field
      4.3.5 Sector preamble
      4.3.6 Sector postamble (P)
  4.4 Edit gaps
  4.5 Channel coding
      4.5.1 Coding rules
      4.5.2 Data rate and wavelength
  4.6 Magnetization
      4.6.1 Polarity
      4.6.2 Recorded equalization
      4.6.3 Record level
5 Video interface
6 Audio interface
  6.1 Encoding parameters
      6.1.1 Sampling
      6.1.2 Reference level
  6.2 Digital signal interface
7 Video processing
  7.1 Introduction
  7.2 Recorded data
      7.2.1 Recorded samples and lines of the television frame
      7.2.2 Non-recorded data
      7.2.3 Source precoding
  7.3 Luminance separation and video reserve data
  7.4 Channel and video block distribution
  7.5 10/8 bit arrangement
  7.6 Video randomization
  7.7 Outer error protection
  7.8 Field data array
  7.9 Order of transmission to inner coding
8 Audio processing
  8.1 Introduction
  8.2 Source coding
  8.3 Source processing
      8.3.1 Introduction
      8.3.2 Relative audio-video timing
      8.3.3 Audio data in fields
      8.3.4 Intra-field shuffling
      8.3.5 Block shuffling
      8.3.6 Audio data word processing
  8.4 Auxiliary words
      8.4.1 Channel use (CHAN)
      8.4.2 Pre-emphasis (PREF)
      8.4.3 Audio data word mode (LNGH)
      8.4.4 Block sync location (S MARK)
      8.4.5 Field number count (FNCT) for 525/60 system
      8.4.6 Edit flag (EFLG)
  8.5 Outer error protection
  8.6 Inner protection
  8.7 Order of transmission to inner coding
  8.8 Channel coding
  8.9 Allocation of audio sectors
9 Longitudinal tracks
  9.1 Relative timing
      9.1.1 Time and control code input
      9.1.2 Time and control code information
      9.1.3 Cue information
      9.1.4 Control track servo pulse
  9.2 Control track
      9.2.1 Method of recording
      9.2.2 Servo reference pulse
      9.2.3 Flux polarity
      9.2.4 Flux level
      9.2.5 Pulse width
      9.2.6 Servo reference pulse timing
      9.2.7 Colour frame pulse
      9.2.8 Video frame pulse
  9.3 Cue record
      9.3.1 Method of recording
      9.3.2 Flux level
  9.4 Time and control code record
      9.4.1 Method of recording
      9.4.2 Flux level
      9.4.3 Input signal
Figures
Annex A (normative) Tape tension
Annex B (normative) Cross-tape track measurement technique
Annex C (normative) Track pattern during insert editing
Annex D (informative) Video signal processing
Annex E (informative) Manufacturer
Annex F (informative) Bibliography
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Specifies the electrical and mechanical characteristics of equipment allowing the interchangeability of 12.65 mm cassettes containing digitally recorded component video programmes.

DevelopmentNote
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
DocumentType
Standard
Pages
310
PublisherName
National Standards Authority of Ireland
Status
Current

Standards Relationship
SN EN 61835 : 1998 Identical
NF EN 61835 : 1999 Identical
EN 61835:1998 Identical
IEC 61835:1998 Identical
DIN EN 61835:1999-05 Identical
NBN EN 61835 : 1999 Identical
BS EN 61835:1998 Identical

IEC 61179:1993 Helical-scan digital composite video cassette recording system using 19 mm magnetic tape, format D2 (NTSC, PAL, PAL-M)
IEC 60050-806:1996 International Electrotechnical Vocabulary (IEV) - Part 806: Recording and reproduction of audio and video
IEC 60735:1991 Measuring methods for video tape properties
SMPTE ST 125 : 2013 SDTV COMPONENT VIDEO SIGNAL CODING 4:4:4 AND 4:2:2 FOR 13.5 MHZ AND 18 MHZ SYSTEMS
IEC 61327:1995 Helical-scan digital composite video cassette recording system using 12,65 mm (0,5 in) magnetic tape - Format D-3
HD 507 : 200S1 TIME AND CONTROL CODE FOR VIDEO TAPE RECORDERS
IEC 60958:1989 Digital audio interface
SMPTE ST 259 : 2008 TELEVISION - SDTI DIGITAL SIGNAL/DATA - SERIAL DIGITAL INTERFACE
EN 61179:1993 Helical-scan digital composite video cassette recording system using 19 mm magnetic tape, format D2 (NTSC, PAL, PAL-M)
SMPTE RP 155 : 2014 REFERENCE LEVELS FOR ANALOG AND DIGITAL AUDIO SYSTEMS
IEC 60461:2010 Time and control code
SMPTE EG 21 : 1997 NOMENCLATURE FOR TELEVISION DIGITAL RECORDING OF 19-MM TYPE D-1 COMPONENT AND TYPE D-2 COMPOSITE FORMATS
EN 60958:1990/A2:1995 DIGITAL AUDIO INTERFACE
IEC 60050-807:1998 International Electrotechnical Vocabulary (IEV) - Part 807: Digital recording of audio and video signals

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