Key Digital KD-VPHD4X1, Руководство по эксплуатации

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KD-VPHD4X1 Operating Instructions
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5. Zoom - Aspect Ratio adjustments.
Your KD-VPHD4X1 Switcher & Processor can perform output Aspect Ratio processing,
including options to prevent monitor burn-in for Letterbox or Pillarbox images:
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Full
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Letterbox, Pillarbox
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Horizontal Zoom, Vertical Zoom, Horizontal and Vertical Zoom
You can also scale the selected (switched) HDMI video input to match the native resolution
of your display:
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Using world-renowned Key Digital ® Clear Matrix Pro TM and SDS TM (Super Digital Scaling)
technologies to deliver world-class scaling
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Supports all popular source and display formats and resolutions
Firmware Upgrades
From time-to-time, Key Digital ® provides the option for you to update the Firmware that oper-
ates and controls your KD-VPHD4X1 Switcher & Processor, such as to add a new or
improved feature. These updates are optional, and you should only perform upgrades as
provided and instructed by Key Digital
® . Check our web site at www.keydigital.com for the
latest firmware updates.
Should a Firmware Upgrade be available that you are interested in installing in your unit,
please be sure to carefully and completely follow all of the steps described below.
1. H Zoom (Horizontal Zoom): This “H Zoom” feature is particularly useful for some
Plasma owners, who may want to stretch the image to fill the screen and avoid the
nasty burn-in. If the input signal is a Pillarbox, Horizontal Zoom extends (distorts) the
image from left to right to fill the screen. For example, when a 4:3 movie is up-con-
verted to HDTV in a studio, it may be simply released in the Pillarbox format, with
black bars to the left and right of the image in a 16:9 window.
2. V Zoom (Vertical Zoom): This “V Zoom” feature is particularly useful for some
Plasma owners, who may want to stretch the image to fill the screen and avoid the
nasty burn-in. If the input signal is a Letterbox, Vertical Zoom extends (distorts) the
image from top to bottom to fill the screen. For example, it is very common for a
widescreen DVD movie to be presented in Letterbox, because the original movie
may be captured in 2.35:1 Cinemascope or some other Aspect Ratio that creates a
small letterbox in a 16:9 window.
3. HV Zoom: This mode simultaneously stretches the image uniformly in both the
Horizontal and Vertical directions, using the same ratios as in H Zoom and V Zoom.
This Zoom mode may be preferred over the H- or V-Zoom, both of which geometri-
cally distort the image. Because the image is “Zoomed,” there will be a slight loss
(cropping) of the image at the top and bottom for Pillarbox sources, and at the left
and right for Letterbox sources.