A line of data has the following format:
The type bytes have the following values:
Video Lines
Vertical Blanking Lines
Start
End Start
End
field 1
80
9D
AB
B6
field 2
C7
DA
EC
F1
There are three bits to indicate first field, start of field blanking,
and the start of horizontal blanking. The rest of the byte is coded
to protect the information in these three bits. The protection code
allows for correcting single bit errors and detecting double bit
errors.
A line number changes immediately after the active video and
before the blanking. In the following diagram the sync sequence
at the end of active video is the first to change when starting a
new blanking mode or field. There are no half lines: field 1 has
one more line than field 2.
FF OO OO FF OO OO
XX XX XX ... XX XX XX
XX
Preamble
Sync
Sync
Type
Byte
Data (1440 bytes)
Diskus Technical Guide
File Formats
9100-0217-02 - SEP 95
Appendix
12-7
Summary of Contents for Diskus
Page 1: ...Diskus Digital Disk Recorder Manual ...
Page 477: ...NOTES Diskus Operations Index 9100 0217 02 SEP 95 Index xvii ...
Page 478: ...NOTES Index Diskus Operations xviii Index 9100 0217 02 SEP 95 ...
Page 479: ...NOTES Diskus Operations Index 9100 0217 02 SEP 95 Index xix ...
Page 480: ...NOTES Index Diskus Operations xx Index 9100 0217 02 SEP 95 ...
