HD2200
SECTION 4
HD22 14/03/01 Version 1 Issue 2
4.7
FILM CONTROL
When selected the menu shown below is
displayed.
FLAG SOURCE
Selects the source of film sequence information.
The options are:
Free Run
The machine generates an
internal 2:2 or 3:2 pulse. The
pulse generated depends on
the input standard. For
example, a 1080/60 input
will generate a 3:2 pulse to
be used internally, while a
1080/50 input would
generate a 2:2 pulse. See
CONVERT – FILM CTL –
FLAG DLY for additional set-
up information relating to the
free run pulse.
Detect
In this mode the HD2200
uses an internal film
sequence detection
algorithm to establish the
incoming film sequence.
FLAG DELAY
Used to align the free running film sequence pulse
with the incoming video.
If the pulse is of 3:2 type, then the correct delay
will be a value between 0 and 4 fields inclusive. If
the pulse is of 2:2 type than a pulse delay of 0, 2
or 4 corresponds to normal film dominance i.e.
input field ones are paired with the following field
twos. Pulse delays of 1 or 3 correspond to inverted
field dominance, i.e. field twos are paired with the
following field ones.
WINDOW
The HD2200 film sequence detection circuit
operates over a windowed section of the input
picture. By default the whole of the input image
lies within the window. However, it may be
desirable to exclude certain areas of the picture
from the window. To facilitate this, the window can
be made visible on the HD2200 output video so
that it can easily be adjusted.
Note, the window is applied to the HD2200 input
video so it is advisable to have all of the input
video visible when making the adjustment. For
example, by selecting a full height display (see
DISPLAY-PRESETS menu).
VISIBLE
Turns the film sequence window on and off. This
should be set to off, except when adjusting the
sequence window, or the HD2200 output will be
incorrect.
POSITION
To select each of the parameters, press the lower
left hand button
adjacent to >>>.
Left
Adjusts the left-hand edge of the
window in pixel increments.
Right
Adjusts the right-hand edge of the
window in pixel increments.
Top
Adjusts the top edge of the window in 1
line increments.
Bottom
Adjusts the bottom edge of the window
in 1 line increments.
TYPE
This controls the appearance of the sequence
window when it is visible.
The options are:
Darken
The gain of video outside the window is
reduced.
Greyed
The video outside the window is
monochrome.
