Lumagen VisionDVI & VisionHDP - Manual (Page 6)

VisionHDP ™
User Manual and Installer Guide
© 2004-2007 Lumagen®, Inc. 3 Rev 1.14
Composite and SVideo inputs automatically select between NTSC, PAL and SECAM formats. The
component, RGB and DVI-D inputs accept SD, ED and HD video at either 50 or 59.94 Hertz.
HDCP encryption is supported for the DVI-D inputs. If the signal is encrypted, the DVI-D inputs
are decrypted, processed, scaled and then re-encrypted for output as DVI-D. This is not just a
“pass-through” function.
NOTE:
HDCP encrypted DVI-D sources must be re-encrypted for output.
The analog output is disabled in this case. The display
must be HDCP capable to show these encrypted sources.
If the video input is interlaced, it is first deinterlaced into a progressive format. Proprietary
scaling algorithms are used to scale the resulting progressive video to the optimal size for the
display. The Lumagen video processor scaling is programmable in scanline increments. For
analog outputs, the video is over-sampled to provide the best possible image quality. For DVI-D
outputs the resolution is programmable in both scanline increments vertically, and pixel
increments horizontally.
As part of the scaling process, digital filtering is used to enhance the image detail. This
enhancement allows standard definition inputs, such as DVDs, to appear to be much higher
resolution. This is especially good for DVDs when they are viewed on the large screen sizes
common in home theaters.
When the digital processing is completed; the video is converted to analog using digital-to-analog
converters (DACs), or is output as DVI-D (digital) video.
To accommodate the various video displays, the output type is programmable. It can be set to
analog YP
R
P
B
, RGBHV, RGBS or RGsB; with programmable sync type and polarities. YP
R
P
B
can be
selected with either the SD or HD color formats. DVI-D video can use either the “PC” range (full
range black to white), or “video range” (reduced range black to white to allow for blacker-than-
black and whiter-than-white levels).
An infrared remote control is provided. Alternately, the serial RS232 port can be used for control,
or for software updates. Critical display setup parameters have direct commands. Other functions
use an on-screen menu.
Every input has four independent configuration memories, to allow options such as day and night
specific modes for both NTSC and PAL sources. In addition, the HD capable inputs have four
input resolution based sub-memories. These allow independent calibration and setup for 480i/p
or 576i/p sources, 720p sources, 1080i sources, plus an additional sub-memory for another
resolution. This feature is very useful for satellite receivers and other source devices, such as D-
VHS HD video recorders, that can output the native resolution of the source material. In this
“hybrid mode,” SD sources are output as either 480i/576i or 480p/576p, 720p source material is
output as 720p, and 1080i material is output as 1080i. Each of these source formats can be
independently calibrated for each of the four input memories.