I.S. EN 61122:1994
Current
The latest, up-to-date edition.
STILL VIDEO FLOPPY DISK MAGNETIC RECORDING SYSTEM
Hardcopy , PDF
English
01-01-1994
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
1 General
1.1 Scope
1.2 Normative references
1.3 Environment
2 Jacket
2.1 Datum areas, datum holes and datum planes
2.2 Flatness of jacket
2.3 Appearance of jacket
2.4 Hub
2.5 Spindle
2.6 Shutter mechanism
2.7 Contact between disk and jacket
3 Disk
3.1 Dimensions
3.2 Physical properties of disk
3.3 Recording characteristics
3.4 Reference disk and sub-reference disk
4 Track pattern
4.1 Recording surface
4.2 Main track
4.3 Cue track
4.4 Track configuration
5 Video recording format
5.1 Frequency spectrum allocation of recording signals
5.2 Recording of luminance component
5.3 Recording of chrominance component
5.4 Time difference between luminance and chrominance signals
5.5 Multiplex recording of identification codes
5.6 Track allocation
6 Audio recording format
6.1 Block diagram for audio recording
6.2 Time compression ratio
6.3 Signal arrangement
6.4 FM signal recording characteristics
6.5 Pm-emphasis and noise reduction
6.6 Control code
7 Data recording format
7.1 Channel bit rate
7.2 Formatted recording capacity
7.3 Track format
7.4 Sector format
7.5 Frame format
7.6 Sub-code
7.7 Modulation
7.8 Error detection and correction scheme
8 Cue track application format
8.1 Cue file
8.2 Directory system file
8.3 Cue track system file
8.4 Auto playback file
8.5 Text file
Annex A Names of the companies keeping the reference disk
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