Lumagen VisionProHDP - Manual (Page 6)

VisionPro HDP
™ User Manual and Installer Guide
© 2004-2006 Lumagen®, Inc. 3 Rev 1.1
Composite and SVideo inputs automatically select between NTSC, PAL and SECAM
formats. Component/RGB and DVI-D inputs accept SD, ED and/or HD video at either 50
or 59.94 Hertz. HDCP encryption is supported for DVI-D inputs. If encrypted, DVI-D
inputs are decrypted, processed, scaled and then re-encrypted for output as DVI-D (i.e not
just a “pass-through” function).
Note:
HDCP encrypted DVI-D sources must be re-encrypted for output.
So, the analog output is disabled in this case. Also 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 is programmable in scanline
increments. For analog outputs, 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, even when viewed on the large screen sizes common in home theaters.
When the digital processing is completed, 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
for 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 update. 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/night specific modes for both NTSC and PAL sources. In addition, 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. For example, 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.