Instruction manual

HDE-3000 - 84 -
Table of USF Positioning Parameters
The following tables list the position parameter value ranges for all video formats. The safe title
area value ranges are compliant with SMPTE RP 27.3 and SMPTE RP 218.
NOTE that the NTSC and PAL values are only applicable to SD graphics inserters, and the other
values are only applicable to the Link HDE-3000. All possible values were included here for
comparison and to facilitate SD to HD conversion calculations.
x_position:
safe title area
Format pixels pixel pairs min min max max
NTSC 720 360 0 36 323 359
PAL 720 360 0 36 323 359
720 P 1280 640 0 64 575 639
1080 I 1920 960 0 96 863 959
1080 PsF 1920 960 0 96 863 959
1080 P 1920 960 0 96 863 959
y_position:
active active lines last VBI safe title area
Format lines in field 1 line in field 1 min min max max
NTSC 485 242.5 20 23 45 238 263
PAL 583 291.5 21 40 51 283 295
720 P 720 720 25 26 98 673 745
1080 I 1080 540 20 21 75 506 560
1080 PsF 1080 540 20 21 75 506 560
1080 P 1080 1080 41 42 150 1013 1121
Annex A: Example Conversion Calculation
The following calculation is a simple example showing how to convert an NTSC screen
coordinate (x_position, y_position) into a 1080 P screen coordinate.
[1080P x_ position] = [NTSC x_position] * 960 / 360
[1080P y_position] = (( [NTSC y_position] – 20) * 1080 / 242.5) + 41