Barco LED-PRO, Руководство пользователя

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LED-PRO • User’s Guide 69
4. Operation
Using the Expert Mode Menu
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On the Input Setup Menu , the top “ Input Format ” line indicates the current input video
format in the following form:
Hact x Vact @ Vr Hz
S
1024x768 @75 Hz
Please note:
•
If the currently selected input does not have a valid input signal, the message
"
Invalid Signal " is shown.
•
When “ In Auto Acquire ” is enabled, the input video format will be detected in the
following search order:
~
Last used configuration for the selected input channel
~
Any saved input configuration
~
Any custom library formats created by the user
~
Standard library formats
~
“Best guess” format, to the closest format in library
•
If the video format is a “best guess,” it will be displayed within asterisks.
S
*1024x768 @60.11*
•
If the video format is recalled from a saved input configuration, a “ c ” is displayed
as the right most character.
S
1024x768 @59.94 c
•
When “ In Auto Acquire ” is off, LED-PRO attempts to lock to the input video
format selected by the user. If the currently selected format does not match the
input signal for the selected channel, the display remains black and the menu
indicates "
Invalid Signal ."
„
To change the input video format:
1. Select the input that you wish to change.
2. On the Input Setup Menu , select the top “ Input Format ” line. The navigation
cursor ( > ) changes to the edit cursor ( # ).
3. Use the knob to select the desired format. Press SEL to accept.
4. Repeat from step 1 for additional inputs, as required.
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In order to scale an image, it must first be digitized. This is the process of changing the
analog graphics signals (e.g., Red, Green, and Blue) into pixels that are stored in LED-
PRO’s image memory. Two modes are available:
•
The “ oversample ” mode produces more samples than are present in the original
input image. The oversampled image is then scaled to the final output resolution.
•
The “ 1:1 Sampling ” mode produces a superior image by sampling the analog
video signal at exactly the same rate as the original source. This method allows
the image to be re-constructed with reduced digitizing artifacts.
Note If “ In Auto Acquire ” is enabled, LED-PRO may change a
manually selected format back to a format that it
automatically detects.