Firmware Upgrades - Key Digital KD-HDMI4X1 Operating Instructions Manual

Page 16 of 24
HDMI 4x1 Operating Instructions
TM
5. Zoom - Aspect Ratio adjustments.
Your HDMI 4x1 TM
to prevent monitor burn-in for Letterbox or Pillarbox images:
• Full
• Letterbox, Pillarbox
• 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:
• Using world-renowned Key Digital
technologies to deliver world-class scaling
• Supports all popular source and display formats and resolutions
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-
converted 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.
From time-to-time, Key Digital
ates and controls your HDMI 4x1
These updates are optional, and you should only perform upgrades as provided and
instructed by Key Digital
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.
Switcher can perform output Aspect Ratio processing, including options
® Clear Matrix Pro

Firmware Upgrades

® provides the option for you to update the Firmware that oper-
Switcher, such as to add a new or improved feature.
TM
. Check our web site at www.keydigital.com for the latest firmware
®
TM and SDS TM (Super Digital Scaling)