Hitachi CP-A221N User Manual - Page 90

Transmission speed, Image quality, Keep PC resolution]

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Presentation tools USB Display (continued) Options window If you select the Option button on the Floating menu, the Options window is displayed. Optimize Performance The "LiveViewer Lite for USB" captures screenshots in JPEG data and sends them to the projector. The "LiveViewer Lite for USB" has two options that have different compression rate of JPEG data. Transmission speed Speed takes priority over Image quality. It makes JPEG compression rate higher. The screen on the projector is rewritten quicker because the transferred data is smaller, but the image quality is worse. Image quality Image quality takes priority over Speed. It makes JPEG compression rate lower. The screen on the projector is rewritten slower because the transferred data is larger, but the image quality is better. Keep PC resolution If you remove the check mark from the [Keep PC resolution] box, the screen resolution of your computer will be switched as follows, and the display speed may be faster. CP-A221N, CP-A301N: 1024 x 768 (XGA) CP-AW251N: 1280 x 800 (WXGA) If your computer does not support the display resolution specified above, a smaller resolution that is the largest among the resolutions that are supported by the computer will be selected. NOTE • When the resolution is changed, the arrangement of icons on computer desktop screen may be changed. 90

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90
Presentation tools
If you select the Option button on the Floating
menu, the Options window is displayed.
Optimize Performance
The “LiveViewer Lite for USB” captures screenshots in JPEG data and sends
them to the projector. The “LiveViewer Lite for USB” has two options that have
different compression rate of JPEG data.
Transmission speed
Speed takes priority over Image quality.
It makes JPEG compression rate higher.
The screen on the projector is rewritten quicker because the transferred data
is smaller, but the image quality is worse.
Image quality
Image quality takes priority over Speed.
It makes JPEG compression rate lower.
The screen on the projector is rewritten slower because the transferred data
is larger, but the image quality is better.
Keep PC resolution
If you remove the check mark from the
[Keep PC resolution]
box, the screen
resolution of your computer will be switched as follows, and the display speed may be
faster.
CP-A221N, CP-A301N: 1024 x 768 (XGA)
CP-AW251N: 1280 x 800 (WXGA)
If your computer does not support the display resolution specified above, a smaller
resolution that is the largest among the resolutions that are supported by the
computer will be selected.
USB Display (continued)
Options window
• When the resolution is changed, the arrangement of icons on
computer desktop screen may be changed.
NOTE