• BS EN 61904:2001

    Current The latest, up-to-date edition.

    Video recording. Helical-scan digital component video cassette recording format using 12,65mm magnetic tape and incorporating data compression (Format digital-L)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  15-06-2001

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    1 General
      1.1 Scope
      1.2 Normative references
      1.3 Abbreviations
      1.4 Environment and test conditions
      1.5 Reference tape
      1.6 Calibration tape
    2 Videotape cassette and tape
      2.1 Mechanical parameters of cassette
      2.2 Magnetic tape
    3 Helical recordings
      3.1 Tape speed
      3.2 Record location and dimensions
      3.3 Helical track record tolerance zones
      3.4 Gap azimuth
    4 Programme track data arrangement
      4.1 Introduction
      4.2 Labelling convention
      4.3 Sector details
      4.4 Edit gap
      4.5 Channel coding
      4.6 Tracking servo signals
      4.7 Magnetization
    5 Data arrangement in video sectors
       5.1 Introduction
       5.2 Recorded data
       5.3 Data shuffling
       5.4 DCT (discrete cosine transform)
       5.5 Quantization
       5.6 VLC (variable length code)
       5.7 Data arrangement in sync blocks
       5.8 Outer ECC
    6 Data arrangement in audio sectors
      6.1 General
      6.2 Source data
      6.3 Shuffling
      6.4 Outer ECC
    7 Video audio interface
      7.1 Video interface
      7.2 Audio interface
    8 Longitudinal tracks
      8.1 Relative timing
      8.2 Control track
      8.3 Cue recording
      8.4 Time and control code recording
    Annex A (informative) Tape transport and scanner
    Annex B (informative) Compatibility with analogue
             type-L
    Annex ZA (normative) Normative references to
             international publications with their
             corresponding European publications
    Bibliography

    Abstract - (Show below) - (Hide below)

    Applies to the format for video cassette recording of digital component video signals and associated digital audio signals and related control signals, using 12,65 mm magnetic tape.

    General Product Information - (Show below) - (Hide below)

    Committee EPL/100
    Development Note Also numbered as IEC 61904 (05/2001) Supersedes 98/231990 DC. (05/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60958:1989 Digital audio interface
    IEC 61237-1:1994 Broadcast video tape recorders - Methods of measurement - Part 1: Mechanical measurements
    IEC 61213:1993 Analogue audio recording on video tape - Polarity of magnetization
    IEC 60461:2010 Time and control code
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