1
Both models provide
scaling to multiple
output resolutions.
Selectable output
vertical refresh rates
enable the brightest,
flicker-free images.
Advanced motion
compensation when
de-interlacing input
video.
Support wide-screen
and letterbox images.
Switchable composite
and S-Video inputs.
The AC217A also
supports component
video input and RS-232
remote control.
O
ur Video Scalers convert
standard TV video to non-
interlaced, high-resolution images
that exactly match the native
resolution of any HDTV, DTV, or
plasma projector.
What is interlacing?
A TV video signal is interlaced,
meaning each full screen of
information is actually made up of
two separate fields—the odd
field and the even field. First, the
odd lines are painted on the
screen. Then, before the odd lines
fade, the even lines are painted in
between the odd lines. This all
happens faster than the human
eye can perceive.
In contrast, the computer
signal is non-interlaced—the
horizontal lines are painted
progressively, left to right, top to
bottom, in a single pass. So the
flickering problem you get in
interlaced TV does not exist in
computer video.
FUNCTION
SELECT
OUTPUT
FORMA
T
640 X 480
852 X 480
800 X 600
832 X 624
1024 X 768
1280 X 1024
OUTPUT
RATE
60 Hz
75 Hz
INPUT
SOURCE
COMPOSITE
S-VIDEO
INPUT
FORMA
T
NORMAL
PROCESS
BRIGHTNESS
CONTRAST
SATURA
TION
HUE
POSITION
HORIZONT
AL
VERTICAL
LETTER
BOX
Advanced
Video Scaler
Two sharp ways to show a TV signal on a
monitor, LCD, or plasma projector.
Key Features
VIDEO SCALERS
Line doublers and quadruplers
were developed to convert inter-
laced TV signals to non-interlaced
computer signals. However, when
compared to line doublers or
quadruplers, both video scalers
offer several clear advantages:
• When using a video scaler,
a projector or display
device is not forced to
crop, distort, or further
process the image in order
to display it.
• The video scalers can
provide outputs at multiple
refresh rates. For example,
a video scaler can display
converted PAL video on
projectors that don’t
support 50-Hz refresh
rates. Or converted video
can be displayed at 75 Hz,
eliminating flicker.
• The video scalers are not
limited to a 4:3 aspect
ratio—they can display
letterbox-formatted video,
too (16:9 aspect ratio).
• With a video scaler,
projectors and displays no
longer have to reprocess
the output of a doubler or
quadrupler to match their
own native resolution, so
the final displayed image
is sharper.
Video scaling the intelligent way.
The Intelligent Video Scaler
represents the next generation in
our video scaler solutions. It
incorporates support for
component video input and
output, lockout function of front-
panel controls, and RS-232
remote control of all functions.
Like the Advanced Video
Scaler, the Intelligent Video
Scaler eliminates on-screen
artifacts (such as black lines)
associated with line doubler
conversion. It also features
selectable output resolutions and
aspect control ratio.
Black Box Corporation
• 1000 Park Drive • Lawrence, PA15055-1018 • Tech Support: 724-746-5500 •
www.blackbox.com
•
e-mail: [email protected]
© 2003. All rights reserved.
Black Box Corporation.
7/30/2003
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