Epson V11H128020 User Manual - Page 62

Refresh Rate, Resized display, Security, Squeeze, S-Video, Sync., Synchronization, Tracking, YCbCr

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Page 62 highlights

Glossary 62 Refresh Rate Resized display SDTV Security lock Squeeze mode sRGB SVGA The number of refresh operations per second The light-emitting element of a display maintains the same luminosity and color for an extremely short time. For this reason, the image must be scanned many times per second in order to refresh the lightemitting element. The refresh rate is expressed in hertz (Hz). This function is used to project computer images that have a resolution more than or less than the projector's panel resolution, so that they fill the whole of the projection area. An abbreviation for Standard Definition Television. It refers to standard television systems which do not satisfy the conditions for High-Definition Television. A device consisting of a projector case with a hole in it that a commercially-available theft-prevention cable can be passed through in order to secure the device to a table or pillar. This projector is compatible with the MicroSaver Security System manufactured by Kensington. The method of compressing 16:9 Widescreen images and recording them on video software as 4:3 images. When projecting with Squeeze mode on, the images will return to their original 16:9 format. An international standard for color intervals that was formulated so that colors which are reproduced by video equipment can be handled easily by computer operating systems (OS) and the Internet. A type of video signal with a resolution of 800 (horizontal) × 600 (vertical) dots which is used by IBM PC/AT-compatible computers. S-Video A type of video signal which has the video brightness and color signal information separated, in order to provide better image quality. It refers to images which consist of two independent signals: Y (luminance signal), and C (color signal). Sync. (Synchronization) The process of matching the phases (the relative position of crests and troughs) of computer and projector signals. If signals are not synchronized, problems such as flickering, blurriness and horizontal interference can occur. Tracking The process of matching the computer and projector frequencies (the number of crests in the signals). If tracking is not carried out correctly, wide vertical stripes will appear in the projected images. VGA A type of video signal with a resolution of 640 (horizontal) × 480 (vertical) dots which is used by IBM PC/AT-compatible computers. XGA A type of video signal with a resolution of 1,024 (horizontal) × 768 (vertical) dots which is used by IBM PC/AT-compatible computers. YCbCr The carrier signal contained in the color bar signal used in modern (NTSC) TV transmissions. The name comes from the Y (luminance) signal and the CbCr (chroma [color]) signals. YPbPr The carrier signal contained in the color bar signal used in high-definition TV (HDTV) transmissions. The name comes from the Y (luminance) signal and the PbPr (color difference) signals.

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62
Glossary
Refresh Rate
The number of refresh operations per second The
light-emitting element of a display maintains the
same luminosity and color for an extremely short
time. For this reason, the image must be scanned
many times per second in order to refresh the light-
emitting element. The refresh rate is expressed in
hertz (Hz).
Resized display
This function is used to project computer images
that have a resolution more than or less than the
projector's panel resolution, so that they fill the
whole of the projection area.
SDTV
An abbreviation for Standard Definition Television. It
refers to standard television systems which do not
satisfy the conditions for High-Definition Television.
Security
lock
A device consisting of a projector case with a hole in
it that a commercially-available theft-prevention
cable can be passed through in order to secure the
device to a table or pillar. This projector is
compatible with the MicroSaver
Security System
manufactured by Kensington
.
Squeeze
mode
The method of compressing 16:9 Widescreen
images and recording them on video software as 4:3
images.
When projecting with Squeeze mode on, the images
will return to their original 16:9 format.
sRGB
An international standard for color intervals that was
formulated so that colors which are reproduced by
video equipment can be handled easily by computer
operating systems (OS) and the Internet.
SVGA
A type of video signal with a resolution of 800
(horizontal)
×
600 (vertical) dots which is used by
IBM PC/AT-compatible computers.
S-Video
A type of video signal which has the video
brightness and color signal information separated, in
order to provide better image quality. It refers to
images which consist of two independent signals:
Y (luminance signal), and C (color signal).
Sync.
(Synchronization)
The process of matching the phases (the relative
position of crests and troughs) of computer and
projector signals. If signals are not synchronized,
problems such as flickering, blurriness and
horizontal interference can occur.
Tracking
The process of matching the computer and projector
frequencies (the number of crests in the signals). If
tracking is not carried out correctly, wide vertical
stripes will appear in the projected images.
VGA
A type of video signal with a resolution of 640
(horizontal)
×
480 (vertical) dots which is used by
IBM PC/AT-compatible computers.
XGA
A type of video signal with a resolution of 1,024
(horizontal)
×
768 (vertical) dots which is used by
IBM PC/AT-compatible computers.
YCbCr
The carrier signal contained in the color bar signal
used in modern (NTSC) TV transmissions. The
name comes from the Y (luminance) signal and the
CbCr (chroma [color]) signals.
YPbPr
The carrier signal contained in the color bar signal
used in high-definition TV (HDTV) transmissions.
The name comes from the Y (luminance) signal and
the PbPr (color difference) signals.